†evW c© ix¶vi cªkœ I DËi : ˆbe©¨w³K · M dm‡dU N bvB‡UªU 6. ... 13. ‡nevi-em...

30 cv‡Äix GmGmwm T E S T †ccvim

1. XvKv †evW©-2009 imvqb : ˆbe© w³K cÖkœ mgq-35 wgwbU; c �Y©gvb -35

[we‡kl `ªóe¨ : mieivnK…Z ˆbe© w³K Afx¶vi DËic‡Î cÖ‡kœi µwgK b¤^‡ii wecix‡Z cÖ Ë eY©m¤^wjZ e„Ëmg�n n‡Z mwVK/m‡e©vrK…ó DË‡ii e„ËwU ej c‡q›U Kjg Øviv m¤•�Y© fivU Ki| cÖwZwU cÖ‡kœi gvb 1|]

1. Av`k© ZvcgvÎv I Pv‡c 50gm Kve©b-WvBA·vBW M¨v‡mi AvqZb ⎯

K 22.4 litre L 224 litre M 25.45 litre N 26.45 litre 2. K…wÎg wmé ˆZix‡Z †Kvb&wU eëüZ nq ? K CH3CH2COOH L CH3COOH M CH2ClCOOH N HCOOH 3. FYvZ¥K cÖfveK †Kvb&wU ? K evwj L g¨v½vwbR-WvBA·vBW M wM−mvwib N †Kvb&wUB bq 4. mywbw ©ó cwigvY Zij c`v_© gvcvi Rb¨

†Kvb&wU eëüZ nq ? K wc‡cU L ey ‡iU M weKvi N gU©vi 5. mKj avZzi †Kvb& jeY cvwb‡Z `ªeYxq ? K Kve©‡bU L mvj‡dU M dm‡dU N bvB‡UªU 6. AwMœ Drcv K †evgv ˆZix‡Z †Kvb&wU eëüZ nq

? K Ca L Na M Pb N Mg 7. Ca++ G B‡jKUªb KqwU ? K 11 L 12 M 18 N 20 8. †Kv‡mj KZ mv‡j AvqwbK eÜ‡bi aviYv † b

? K 1915 L 1916 M 1917 N 1918 9. n¨v‡jv‡Rbmg�‡ni wµqvkxjZvi µg nj

⎯ K Cl > Br > F > I L Br > F > Cl > I M I > Cl > F > Br N F > Cl > Br > I 10. CuO + C → Cu + CO wewµqvwU‡Z

†Kvb&wU weRvi‡Ki KvR K‡i ? K CuO L Cu M C N CO 11. GKwU cigvYyi e¨vm ⎯ K 10-8cm L 10-10cm M 10-13cm N 10-15cm

12. Bu yi gvivi wel ˆZix‡Z †Kvb&wU eëüZ nq ?

K bvB‡Uªv‡Rb L dmdivm M mvjdvi N Kve©b 13. †evib bvBUªvB‡Wi ms‡KZ n‡”Q ⎯ K B3N2 L BN2 M B2N N BN 14. †n‡·‡bi ù�UbvsK KZ ? K 36°C L 69°C M -95°C N 98°C 15. Zirconium bvgwU †Kvb& fvlv †_‡K †bqv

n‡q‡Q? K j¨vwUb L Bs‡iRx M divmx N Aviex 16. mwµqZvµ‡g †Kvb& avZzwUi Ae ’vb

nvB‡Wªv‡R‡bi bx‡P ? K †mvwWqvg L wRsK M †Mvì N †jW 17. GKwU †hŠ‡M 32.4% †mvwWqvg; 22.5%

mvjdvi Ges 45.1% Aw·‡Rb we`¨gvb| Gi ¯’ �jms‡KZ n‡”Q ⎯

K Na2SO3 L Na2SO4 M Na2SO2 N NaSO3 18. †Kvb&wU Zwor Awe‡k−l¨ ? K wPwb L mvaviY jeY M Kcvi mvj‡dU N mvjwdDwiK

GwmW 19. bvU¨g‡Â †auvqv ˆZix‡Z wb‡Pi †Kvb&wU

eëüZ nq ? K NH3 L CO2 M NO2 N SO2 20. MjbvsK, ùzUbvsK Ges NbZ¡ c`v‡_©i GKwU

⎯ K †gŠwjK ag© L †hŠwMK ag© M †fŠZ ag© N ivmvqwbK ag© 21. Bcmg je‡Yi ms‡KZ n‡”Q ⎯ K MgSO4, 7H2O L CuSO4, 7H2O M Na2SO4, 7H2O N Na2SO4, 10H2O 22. djg�‡ji cPb‡iv‡a eëüZ nq ⎯ K SO2 L CO2 M NO2 N SO3

23. uv‡Zi gvRb ˆZix‡Z eëüZ nq ⎯ K CaO L CaCO3 M CuCO3 N Na2CO3

24. Kv÷ Avqi‡b g¨v½vwb‡Ri cwigvY ⎯ K 1.0% L 2.5% M 0.4% N 0.2% 25. Zwor we‡k−l‡Yi mgq K¨v‡_vW n‡”Q ⎯ K wbi‡c¶ ZworØvi L RviY ZworØvi M weRviY ZworØvi N †Kvb&wUB bq 26. A v‡fv‡M‡Wªv KZ mv‡j AYyi aviYv cÖeZ©b

K‡ib? K 1799 L 1803 M 1808 N 1811 27. †m‡›Ui MÜ Qwo‡q c‡o †Kvb& cÖwµqvi gva¨‡g

? K e¨vcb L eªvDbxq MwZ M AwfmªeY N `ªeY 28. ch©vq mviYxi †Kvb& ch©v‡q cvigvYweK

msL¨v hZB e„w× cvq cigvYyi AvKvi ZZ ⎯

K e„w× cvq L n«vm cvq M w¯’i _v‡K N †Kvb&wUB bq 29. mvaviYZ KZ ZvcgvÎv e„w×‡Z wewµqvi

MwZ wØ¸Y nq ? K 40°C L 30°C M 20°C N 10°C 30. cvwbi AYyi AvK…wZ n‡”Q ⎯ K îwLK L wcivwgwWq M †KŠwYK N PZz¯�jKxq 31. cUvwmqvg Gi N †k‡j KqwU B‡jKUªb Av‡Q

? K 1 L 2 M 6 N 8 32. c −v¤vm †hŠM †Kvb&wU ? K CrO3 L ZnO M Al2O3 N PbO 33. †Kvb&wU †j‡Wi AvKwiK ? K K¨vjvgvBb L M¨v‡jbv M e·vBU N wj‡gvbvBU 34. cÖej Pv‡c †Kvb& wewµqvwU msNwUZ nq ? K Pb + S → PbS L C2H2 → 2C + H2 M 2H2O → 2H2 + O2 N H2 + Cl2 → 2HCl 35. GKwU Zxeª GwmW I Zxeª ¶v‡ii cÖkgb

wewµqvi Zvc n‡”Q⎯ K 57.3 KJ L — 57.35 KJ M 100 KJ N —757 KJ

DËigvjv 1 M 2 L 3 M 4 K 5 N 6 N 7 M 8 L 9 N 10 M 11 K 12 L 13 N 14 L 15 N 16 M 17 L 18 K 19 L 20 M 21 K 22 K 23 L 24 M 25 M 26 N 27 K 28 L 29 N 30 M 31 K 32 N 33 L 34 K 35 K

†evW© cix¶vi cªkœ I DËi : ˆbe© w³K XvKv †evW©

imvqb †evW© cix¶vi cÖkœ : ˆbe© w³K 31

2. XvKv †evW©-2008 imvqb : ˆbe© w³K cÖkœ 1. wb‡æi †Kvb& †hŠMwU A¨vj‡Kb ? K C3H8 L C3 H6 M C2H4 N C4H12

2. Kve©b g‡bv·vB‡W Kve©‡bi mwµq †hvRbx KZ?

K 1 L 2 M 3 N 4 3. nvB‡Wªv‡Rb cvi·vB‡Wi MvVwbK ms‡KZ

n‡”Q ⎯ K H = O = O – H L H – O – H = H M H = O = H – O N H– O – O –H 4. wbDUª‡bi Avmj fi nj ⎯ K 1.675×10–24g L 2.375×1022g M 3.675×10–22g N 4.375×1022g 5. bxjm& †evi cigvYy MV‡bi DbœZ GKwU g‡Wj

cÖ vb K‡ib ⎯ K 1414 wLª÷v‡ã L 1613 wLª÷v‡ã M 1913 wLª÷v‡ã N 1725 wLª÷v‡ã 6. wbw®Œq M¨vm AvM©b Gi B‡jKUªb web¨vm

n‡”Q ⎯ K 2, 8 L 2, 8, 8 M 2, 8, 18, 8 N 2, 8, 2 7. wµÞb Gi cvigvYweK msL¨v KZ? K 10 L 18 M 22 N 36 8. †h kw³i e‡j AYy‡Z cigvYymg�n Ave×

_v‡K Zv‡K e‡j⎯ K †hvR¨Zv L AóK M eÜb N Avqb 9. ch©vq mviYx‡Z n¨v‡jv‡Rbmg�‡ni Ae ’vb

⎯ K MÖ“c I L MÖ“c VII

M MÖ“c V N MÖ“c III

10. A¨v‡fv‡M‡Wªv msL v ej‡Z eySvq⎯ K 1g e¯‘‡Z AYyi msL¨v L 1g cigvYyi msL¨v M 1mole e¯‘i AYyi msL¨v N 1 litre e¯‘‡Z cigvYyi msL¨v 11. nCH2 = CH2 ⎯→ (–CH2– CH2–)n

G wewµqvwU ⎯ K cÖwZ¯’vcb L cvwb‡hvRb M mgvYyKiY N cwjgviKiY 12. K…wÎg wN ˆZwi‡Z cÖfveK wnmv‡e e¨eüZ

nq ⎯ K wb‡Kj P‚Y© L `¯�v P‚Y©

M Kcvi P‚Y© N †jŠn P‚Y© 13. ‡nevi-em c×wZ‡Z A¨v‡gvwbqv Drcv ‡b

Pvc cÖ‡qvM Kiv nqÑ K 100 – 150 atm L 200 – 250 atm M 300 – 350 atm N 400 – 450 atm 14. 1 Faraday mgvb ⎯ K 25500C L 35500C M 46500C N 96500C 15. 1 mole bvB‡Uªv‡Rb M vm 1 mole Aw·‡Rb

M v‡mi mv‡_ wewµqv K‡i 2 mole bvBwUªK A·vBW M vm Drcbœ K‡i| G mgq cvwicvk¦© n‡Z Zvc †kvwlZ nq ⎯

K 180. 6kJ L 280.5kJ

M 380.8kJ N 480.6kJ

16. GK K¨vjwi mgvb KZ? K 2.18 Joule L 4.18 Joule M 6.22 Joule N 8.32 Joule 17. wg‡_‡bi nb Zvc n‡”Q ⎯ K 290 kJ/mole L 490 kJ/mole M 890 kJ/mole N 1090 kJ/mole 18. µvBIjvBU Gi ms‡KZ †KvbwU? K Ca3AlF L Ca3AlF6 M NaAlF6 N Na3AlF6 19. cUvwmqv‡gi mKj †hŠM Aby¾¡j eyb‡mb

`x‡c cÖ‡ek Kiv‡j †Kvb& is Gi wkLvi m„wó nq?

K †e¸bx L njy

M meyR N jvj 20. g vM‡bwmqvg Gi MjbvsK n‡”Q ⎯ K 830°C L 740°C M 650°C N 1090°C 21. Kcvi Kve©‡bU †Kvb e‡Y©i cvDWvi? K nvév njy L nvév meyR M nvév jvj N nvév †e¸bx 22. wb‡Pi †Kvb& wewµqvwU mwVK? K ZnO + NaOH + H2O =

NaZn(OH) L ZnO + Na2OH + H2O = Na2Zn

(OH) M ZnO + 2NaOH + H2O =

Na2(OH)4 N ZnO + 4NaOH + H2O = Na2Zn

(OH)6

23. Re Gwm‡Wi wµqvkxj g�jK n‡”Q ⎯

K –

O||C – OH L –

O||C – OR

M – OH N – C ≡ C – 24| d vwU GwmWmg�‡ni mvaviY ms‡KZ n‡”Q

⎯ K CnH2n+1 COOH L CnHn+1 COOH M CnHnCOOH N CnH2n+2 COOH 25. CH3–CH2 –CH = CH2 †hŠMwUi bvg

wK? K 1-weDwUb L 2-weDwUb M 3-weDwUb N 4-weDwUb 26. †Kvb e¯‘i †fZ‡ii c`v‡_©i cwigvY‡K ejv

nq ⎯ K fi L IRb M †hŠM N †gŠj 27. mvaviY je‡Yi ùzUbvsK nj ⎯ K 1065°C L 1465°C

M 1630°C N 1400°C 28. wPwbi mieZ n‡”Q⎯ K AmgmË¡ c`v_© L †gŠwjK c`v_© M mgmË¡ wgkÖY N †hŠwMK c`v_© 29. BD‡iwbqv‡gi GKwU cigvYyi fi n‡”Q ⎯ K 1.67×10–24g L 2.99×10–23g M 3.95×10–22g N 4.95×10–22g

30. w ’ivbycvZ m�ÎwU divmx imvqbwe` cÖvDm cÖKvk K‡ib ⎯

K 1599 wLª÷v‡ã L 1699 wLª÷v‡ã M 1799 wLª÷v‡ã N 1899 wLª÷v‡ã 31. †Kvb GwmWwU wbi“ K? K H2SO4 L HNO3 M H3PO4 N HCl 32. H2SO4 Gi GKwU AYyi fi ⎯ K 2.73×10–22g L 1.63×10–22g M 1.67×10–24g N 6.02×10–23g 33. cÖgvY ZvcgvÎv I Pv‡c Aw·‡R‡bi NbZ¡

nj ⎯ K 4.44 g/litre L 3.33 g/litre M 2.22 g/litre N 1.43 g/litre

34. cvi‡K¬vwiK Gwm‡Wi ms‡KZ †Kvb&wU? K HClO4 L PClO4 M NH3O4 N H2SO4 35. †ebwR‡bi AvYweK ms‡KZ †Kvb&wU? K C2H4 L C6H6 M C3H6 N C4H6

DËigvjv 1 K 2 L 3 N 4 K 5 M 6 L 7 N 8 M 9 L 10 M 11 N 12 K 13 L 14 N 15 K 16 L 17 M 18 N 19 K 20 M 21 22 M 23 K 24 K 25 K 26 K 27 L 28 M 29 M 30 M 31 K 32 L 33 N 34 K 35 L


3. XvKv †evW©-2007 imvqb : ˆbe© w³K cÖkœ

1. †Kvb KwVb c`v_©‡K DËß Ki‡j mivmwi ev‡®• cwiYZ nq| G cÖwµqv‡K e‡j ⎯

K cvZb L Ea©cvZb M ev®•xfeb N Nbxfeb 2. wb‡Pi †KvbwU DcavZz? K cvi` L Kcvi M wRsK N †evib 3. j¨vb‡Wvë cix¶vq †Kvb avZzi Aat‡¶c

c‡o? K iƒcv L Zvgv M `¯�v N mxmv 4. †Kvb m�Î imvq‡b DbœwZ mva‡b AmvaviY

f‚wgKv †i‡L‡Q ? K f‡ii wbZ¨Zv m�Î L A¨v‡fv‡M‡Wªvi m�Î M wecixZ AbycvZ m�Î N w¯’ivbycvZ m�Î 5. cvi‡K¬vwiK Gwm‡W Aw·‡R‡bi kZKiv

mshyw³ KZ? K 0.995% L 32% M 35.3% N 63.68% 6. `ywU AvB‡mv‡Uv‡ci g‡a¨ †KvbwU mgvb

bq? K cvigvYweK msL¨vLB‡jKUªb msL¨v M fimsL¨v N ivmvqwbK ag© 7. wb‡Pi †KvbwU †cvjvi †hŠM? K A¨vj‡Kvnj L B_vi M †ebwRb N †c‡Uªvj 8. mvjdv‡ii GKwU AYy‡Z KqwU cigvYy

Av‡Q? K 2 L 4 M 6 N 8 9. VI MÖ“‡ci †gŠ‡ji A·vBW †KvbwU? K P2O5 L Al2O3 M SO3 N Cl2O7

10. ivmvqwbK wewµqvi †¶‡Î †KvbwU Aek¨B cÖ‡qvRbxq?

K Zvc L Av‡jv M cÖfveK N ms¯•k© 11. mvaviYZ KZ ZvcgvÎv e„w×‡Z wewµqvi

MwZ wØ¸Y nq? K 10°C L 20°C M 30°C N 40°C 12. weÁvbx †Kv‡mj KZ mv‡j AvqwbK

eÜ‡bi aviYv †`b?

K 1910 L 1912 M 1915 N 1916 13. wb‡Pi †Kvb avZz GwmW n‡Z nvB‡Wªv‡Rb

AcmviY Ki‡Z cv‡i bv? K Mg L Zn M Ag N Fe 14. ZvcivmvqwbK mgxKi‡Y cÖgvY ZvcgvÎv

n‡”Q⎯ K 0 K L 298 K M 100 K N 273 K 15. mwµqZv µ‡g wb‡Pi Avq‡bi Ae¯’vb

mevi Dc‡i?

K SO2– L SO23

–

M OH– N Cl–

16. †jvnvi wbw®ŒqZvi KviY wK? K wRsK mvj‡dU L Kcvi mvj‡dU M gwiPv N UªvB-Avqib †UUªvA·vBW 17. AwMœ Drcv`K †evgv ˆZwi Ki‡Z †KvbwU

eëüZ nq? K Ca L Na M Pb N Mg 18. bvU¨g‡Â †avuqv ˆZwi‡Z wb‡Pi †KvbwU

eëüZ nq? K NH3 L CO2 M NO2 N SO2

19. †KvbwU A¨vwmwUK Gwm‡Wi wg_vBj MÖ“c‡K AvµgY K‡i ?

K PCl3 L PCl5 M Cl2 N Na 20. wb‡Pi †KvbwUi Avš�:AvYweK kw³ †ewk? K †K‡ivwmb L cvwb M Lvevi jeY N bvB‡Uªv‡Rb 21. wecixZ AbycvZ m�Î †K me©cÖ_g cÖKvk

K‡ib? K Rb Wvëb L wiKUvi M †M-jym¨vK N A¨v‡fv‡M‡Wªv 22. Gm,wc,wc-†Z 16 MÖvg Aw·‡Rb M¨v‡mi

AvqZb KZ? K 22.4 wjUvi L 11.2 wjUvi M 224 wjUvi N 448 wjUvi 23. GKwU †hŠ‡Mi AvYweK fi 180 Ges

Dnvi ¯’ �j ms‡KZ CH2O| †hŠMwUi mwVK AvYweK ms‡KZ †KvbwU?

K CH4O L C6H6O

M C6H12O6 N H2CO3 24. _v‡qvmvj‡dU g�j‡Ki †hvRbx KZ? K 1 L 2 M 3 N 4 25. wb‡æi †KvbwU ¯’vqx †gŠwjK KwYKv bq? K †cÖvUb L wbDUªb M B‡jKUªb N cwRUªb 26. A¨‡gvwbqv AYyi AvK…wZ n‡”Q⎯ K îwLK L †KŠwYK M wcivwgW N PZz¯�jKxq 27. 2, 8, 18, 8 †KvbwUi B‡jKUªb web¨vm? K AvM©b L wµcUb M wnwjqvg N †iWb 28. A¨v‡gvwbqvg mvqv‡bU‡K BDwiqvq cwiYZ

Kiv nq, Bnv wK ai‡bi wewµqv? K mgvYyKiY L cÖkgb M wØ-we‡hvRb N cwjgviKiY 29. CH4 + Cl2 = CH3Cl + HCl wewµqvwU

msNU‡bi Rb¨ †Kvb cwi‡ek cÖ‡hvR¨? K Av‡jv L we y r M Zvc N Pvc 30. GKwU Zxeª GwmW I GKwU Zxeª ¶v‡ii

cÖkgb Zvc n‡”Q⎯ K –57.3 kJ L 57.3 kJ M 100 kJ N 573 kJ 31. †mvwWqvg †K¬vivBW Gi Rjxq `ªe‡Yi

Zwor we‡k−l‡Y †Kvb c`v_©wU Drcbœ nq bv?

K †jvnv L †mvwWqvg nvB‡Wªv·vBW M nvB‡Wªv‡Rb N †K¬vwib 32. †Kvb †gŠjwU K¨v‡U‡bkb ag© cÖ k©b K‡i? K Na L H2 M Cl2 N C 33. M −y‡KvwbK Gwm‡Wi ms‡KZ †KvbwU? K C6H12O7 L C6H6 M C12H22O11 N C6H12O6 34. wb‡Pi †KvbwU Bu yi gvivi wel ˆZwi‡Z

eëüZ nq? K S L Cl2 M P N N2 35. cvwbi mv‡_ †Kvb avZzi wewµqvq Av b

a‡i? K K¨vjwmqvg L g¨vM‡bwmqvg M cUvwmqvg N wRsK

DËigvjv 1 L 2 N 3 K 4 L 5 N 6 M 7 K 8 N 9 M 10 N 11 K 12 N 13 M 14 L 15 M 16 N 17 N 18 L 19 M 20 M 21 L 22 L 23 M 24 L 25 N 26 M 27 L 28 K 29 K 30 L 31 K 32 N 33 K 34 M 35 M


4. XvKv †evW©-2006 imvqb : ˆbe© w³K cÖkœ 1. †Kvb je‡Y GwmW †hvM Ki‡j cuPv wW‡gi

MÜhy³ M¨vm †ei nq ? K mvj‡dU L mvjdvBW M †K¬vivBW N bvB‡UªU 2. ch©vq mviwYi †Kvb ch©v‡q cvigvYweK

msL¨v hZB e„w× cvq, cigvYyi AvKvi ZZ Ñ

K w¯’i _v‡K L e„w× cvq M n«vm cvq N ùxZ nq 3. †KvbwU cwieZ©kxj †hvRbx cÖ k©b K‡i ? K g¨vM‡bwmqvg L K¨vjwmqvg M Kcvi N wRsK 4. †KvbwU weiÄK wnmv‡e eëüZ nq? K CO2 L SO2 M NO2 N P2O5 5. Zwor we‡k−l‡Yi mgq K¨v‡_vW n‡”QÑ K wbi‡c¶ ZworØvi LRviY ZworØvi M weRviY ZworØvi N RviY-weRviY ZworØvi 6. wm‡g›U Drcv`b I †ijI‡q iv¯�vq

e¨vjv÷ wnmv‡e eëüZ nq †KvbwU ? K XvjvB †jvnv L †cUv †jvnv M †jvnvi AvKwiK N evZ¨vPzj−x n‡Z wbM©Z avZz gj 7. Avš�tAe¯’vš�i †gŠ‡ji msL¨v n‡”QÑ K 6wU L 15wU M 30wU N 109wU 8. Na+ Avq‡b wbDUªb msL¨v KZ ? K 11 L 23 M 10 N 12 9. cvwgwUK Gwm‡Wi ms‡KZ †KvbwU ? K C15H31COOH L C17H35COOH M C17H33COOH N C2H3COOH 10. †KvbwU dmdwiK GwmW ? K H3PO4 L H3PO3 M H2PO3 N H2PO4 11. B_vBj Gwm‡U‡Ui ms‡KZ †KvbwU ? K CH2COOCH3CH2 L CH3COOCH3CH M CH3COOCH2CH3 N CH3COOCH2CH2 12. Kv÷ ev XvjvB †jvnvq kZKiv KZ fvM

Kve©b _v‡K ? K 0.15% Ñ 0.5% L 0.1 Ñ 0.25% M 2.0 Ñ 4.5% N 4.5 Ñ 6%

13. †KvbwUi MÜ imy‡bi gZ ? K †jvwnZ dmdivm L dmdivm A·vBW M mvjdvi UªvBA·vBW N †k¦Z dmdivm 14. †Kvb avZzi jeY wkLv cix¶vq D¾¡j

†mvbvjx njy eY© †`Lvq ? K †mvwWqvg L cUvwkqvg M K¨vjwmqvg N A¨vjywgwbqvg 15. †ewKs cvDWvi †KvbwU ? K NaHCO3 L Ca(HCO3)2 M NH4HCO3 N Na2HCO3 16. ∆H FYvZ¥K n‡j AvaywbK ixwZ Abyhvqx

wewµqvwU n‡eÑ K Zv‡cvrcv`x L Zvcnvix M DfgyLx N †KvbwUB bv 17. †jLvi Kvwj‡Z †KvbwU eëüZ nq ? K ZnSO4'7H2O L l2.(SO4)3.24H2O M FeSO4.7H2O N CuSO4.5H2O 18. †KvbwUi ev®• NbZ¡ 32 ? K CO L CO2 M SO2 N NO2 19. Mjbv¼, ùzUbv¼ Ges NbZ¡ c`v‡_©i

GKwUÑ K †fŠZ ag© L ivmvqwbK ag© M †gŠwjK ag© N †hŠwMK ag© 20. mvevb ˆZwii mgq DcRvZ wnmv‡e wK

cvIqv hvq ? K B_vbj L wg_vbj M wf‡bMvi N wM−mvwib 21. mg‡hvRx †hŠM †KvbwU ? K PCl3 L NaCl M AlCl3 N MgCl2 22. cÖLi m�h©v‡jv‡K wg‡_b (CH4) Ges

†K¬vwib (Cl2) Gi wewµqvq Drcbœ nqÑ K CH3Cl Ges H2

L Cl2 Ges H2 M C Ges HCl N C6H6 Ges Cl2 23. ei‡d Aw·‡Rb I nvB‡Wªv‡R‡bi cigvYyi

msL¨vi AbycvZÑ K 1 t 1 L 1 t 2 M 1 t 3 N 1 t 4 24. †Wwb‡qj †Kv‡l †KvbwU B‡jKUªb MÖnY

K‡i weRvwiZ nq ? K Zn L NH4Cl M ZnCl2 N Cu++

25. ÒGKB DòZv I Pv‡c mgvb AvqZ‡bi mKj M¨v‡m mgvb msL¨K cigvYy _v‡KÓÑGwU Kvi gZev`?

K Rb Wvëb L †M-jym¨vK M A¨v‡fv‡M‡Wªv N ev‡R©wjqvm 26. 1 wK‡jvMÖvg cvwbi ZvcgvÎv 1° †mt

evov‡Z †h cwigvY Zvc cÖ vb Ki‡Z nq, Zv‡K ejv nqÑ

K 1 K¨vjwi L 1 wK‡jvK¨vjwi M 1 Ryj N 1 wK‡jvRyj 27. †evib bvBUªvB‡Wi ms‡KZ †KvbwU? K BN L B3N2 M B3N4 N B5N2 28. NH4Cl, NH4OH I H2S ‡hv‡M †Kvb

avZzi jeY n‡Z mv`v Aat†¶c c‡o ? K K¨vjwmqvg L g¨vM‡bwmqvg M wRsK N Kcvi 29. nvB‡Wªv‡R‡bi GKwU cigvYyi fi n‡”QÑ K 1.76×10–24 g L 1.67×10–24 g M 1.682×10–24 g N 1.683×10–24 g 30. µvBIjvB‡Ui ms‡KZ †KvbwU ? K Al2O3 L Al2O3.2H2O M Al2(SiO3)3 N Na3AlF6

31. nvB‡Wªv‡RvwqK Gwm‡Wi MvVwbK ms‡KZ †KvbwU ?

K H = N = N – N L H – N = N ≡ N M H = N – N = N N H = N – N = N 32. †Kvb weÁvbx f‡ii AwebvwkZvev` m�Î

Avwe®‹vi K‡ib? K Rb Wvëb L j¨vb‡Wvë M j¨vfqwm‡q N iv`vi‡dvW© 33. ‡gwW‡K‡UW cvDWv‡ii Ask wnmv‡e

†KvbwU eëüZ nq ? K ZnSO4 L ZnSO3 M ZnO N ZnO2 34. †KvbwU wµqvkxjZvi mwVK Abyµ‡g

mvRv‡bv Av‡Q ? K `¯�v, †jvnv, mxmv L `¯�v, Zvgv, †jvnv M Zvgv, `¯�v, †jvnv N †jvnv, `¯�v, Zvgv 35. †Kvb †hŠ‡Mi ¯’ �j ms‡KZ Ges AvYweK

ms‡KZ GKB ? K CH4 L C6H6 M C6H12O6 N C2H2

DËigvjv

1 L 2 M 3 M 4 L 5 M 6 N 7 M 8 N 9 K 10 K 11 M 12 M 13 N 14 K 15 K 16 K 17 M 18 M 19 K 20 N 21 K 22 M 23 L 24 N 25 N 26 L 27 K 28 M 29 L 30 N 31 L 32 M 33 M 34 K 35 K


5. XvKv †evW©-2005 imvqb : ˆbe© w³K cÖkœ 1. ch©vq mviYxi k�b¨ MÖ“‡ci †gŠ‡ji mvaviY

Ae¯’v n‡”Q: K KwVb L Zij M M¨vmxq N Dc‡ii †KvbwUB

bq 2. K…wÎg wN ˆZwi‡Z cÖfveK wnmv‡e e¨eüZ

nq : K wb‡Kj P‚Y© L †jŠn P‚Y© M A¨vjywgwbqvg P‚Y© N c −vwUbvg P‚Y© 3. wewµqvi mvg¨ve¯’v wb‡Pi †Kvb&wU Øviv

cÖfvweZ nq bv? K Pvc L ZvcgvÎv M wewµqvi cvÎ N NbgvÎv 4. Bcmg je‡Yi ms‡KZ n‡”Q : K ZnSO4. 5H2O L CuSO4. 5H2O M MgSO4. 7H2O N FeSO4. 7H2O 5. GK †gvj H–H eÜb fvO‡Z wK cwigvY

kw³ †kvwlZ nq? K 425 kJ L 430 kJ M 435 kJ N 440 kJ 6. †Kvb& Avqb ejq cix¶v †`q? K †K¬vivBW L Kve©‡bU M mvj‡dU N bvB‡UªU 7. †Kvb&wU Dfagx© A·vBW? K 2NO L Na2O M MgO N K2O 8. a �gvqgvb mvjwdDwiK GwmW n‡”Q : K H2SO4 L H2S2O5 M H2S2O6 N H2S2O7

9. †Kvb& c`v_© DaŸ©cvwZZ nq? K Kve©b L mvjdvi M `¯�v N Av‡qvwWb 10. GK cigvYyK M¨vm n‡”Q : K Aw·‡Rb L bvB‡Uªv‡Rb M wnwjqvg N nvB‡Wªv‡Rb 11. †K me©cÖ_g AYyi aviYv cÖeZ©b K‡ib? K Wvëb L wbDUb M ev‡R©wjqvm N A¨v‡fv‡M‡Wªv 12. †Kvb&wU meyR wfwUªqj? K (NH4)2CO3 L Fe2O4 M Al2(SO4)3 N FeSO4. 7H2O

13. †Kvb& avZzwU ¶v‡ii mv‡_ wewµqv K‡i bv?

K wRsK L A¨vjywgwbqvg M †jW N Kcvi 14. wb‡Pi †Kvb&wU jvj †jW? K Pb(CH3COO)2 L Pb3O4 M (C2H5)4Pb N PbO 15. wb‡æi †Kvb& avZz mwµqZv µ‡gi mevi

Dc‡i? K Avqib L Kcvi M g¨vM‡bwkqvg N †mvwWqvg 16. PCl3 + 3H2O = P(OH)3 + 3HCl G

wewµqvwU : K RviY-weRviY L we‡hvRb M cÖkgb N cvwb‡hvRb 17. CH3 – CH2 – CH = CH2 †hŠMwU : K 1-weDwUb L 2-weDwUb M 3-weDwUb N 4-weDwUb 18. †nUv‡iv A¨v‡ivg¨vwUK †hŠM †Kvb&wU? K wg‡_b L †ebwRb M †cÖv‡cb N wcwiwWb 19. †Kvb& †hŠM wjUgv‡mi Dci wµqv K‡i bv? K CO L CO2 M HCl N H2SO4 20. B_vbwqK GwmW KZ wWMÖx DòZvq

M −vwmqvj A¨vwmwUK Gwm‡W cwiYZ nq? K 17°C L 25°C M 100°C N 273°C 21. gv‡e©j cv_‡ii mv‡_ jNy HCl Gi

wewµqvq wK Drcbœ nq? K Aw·‡Rb L †K¬vwib M Kve©b WvB-A·vBWN A¨v‡gvwbqv 22. GKwU wbDUªb Gi cÖK…Z fi KZ? K 1.66×10–24 MÖvgL 1.66×1024

MÖvg M 1.675×1024 MÖvgN

1.675×1024 MÖvg 23. abvÍK †hŠMg�jK †Kvb&wU? K Kve©‡bU L A¨v‡gvwbqvg M dm‡dU N WvB‡µv‡gU 24. wb‡Pi †Kvb&wU cwieZ©bkxj †hvRbx cÖ k©b

K‡i? K †mvwWqvg L Avqib

M nvB‡Wªv‡Rb N cUvwmqvg 25. †Kvb& m�Î imvq‡bi DbœwZ mva‡b

AmvaviY f‚wgKv †i‡L‡Q? K f‡ii wbZ¨Zv m�Î L w¯’ivbycvZ m�Î M M¨vm AvqZb m�Î N A¨v‡fv‡M‡Wªvi m�Î 26. †Kvb&wU‡K kw³kvjx wØ-¶viKxq GwmW

ejv nq? K HCOOH L H2SO4 M H2CO3 N CH3COOH 27. _v‡qvmvj‡dU g�j‡Ki †hvRbx KZ? K 1 L 2 M 3 N 4 28. gwiPvi MÖnY‡hvM¨ ivmvqwbK ms‡KZ

†Kvb&wU? K FeO. H2O L Fe2O3. H2O M Fe2O3. nH2ON FeO. nH2O 29. †K ¸YvbycvZ m�Î cÖKvk K‡ib? K A¨vwi÷Uj L Rb Wvëb M cÖvDm N j¨vb‡Wvë 30. Boron kãwU †Kvb& fvlv †_‡K G‡m‡Q? K j¨vwUb L divmx M Aviex N Bs‡iRx 31. Kcvi (BK)-Gi †hvRbx n‡”Q : K 4 L 3 M 2 N 1 32. GKwU cigvYyi e¨vm KZ? K 10–13 †mwg L 10–10 †mwg M 10–8 †mwg N 10–5 †mwg 33. †Kvb& †gŠwjK c`v‡_©i wbDwK¬qv‡m wbDUªb

†bB? K Kcvi L †mvwWqvg M bvB‡Uªv‡Rb N nvB‡Wªv‡Rb 34. ch©vq mviYx‡Z mvjdv‡ii Ae¯’vb n‡”Q

: K MÖ“c VIII L MÖ“c VII M MÖ“c VI N MÖ“c V 35. †mvwWqvg †K¬vivBW I K¨vjwmqvg

†K¬vivB‡Wi wgkÖ‡Yi Mjbv¼ KZ? K 600°C L 700°C M 801°C N 901°C

DËigvjv

1 M 2 K 3 M 4 M 5 M 6 N 7 8 N 9 N 10 M 11 N 12 N 13 N 14 L 15 N 16 N 17 K 18 N 19 K 20 K 21 M 22 M 23 L 24 L 25 N 26 L 27 L 28 M 29 L 30 M 31 M 32 M 33 N 34 M 35 K


6. XvKv †evW©-2004 imvqb : ˆbe© w³K cÖkœ 1. bvU¨g‡Â †auvqv ˆZwi‡Z wb‡Pi †KvbwU

eëüZ nq ? K CO2 L NO2 M SO2 N NH3

2. wØ‡hvRx g�jK nj⎯ K dm‡dU L Kve©‡bU M bvB‡UªU N nvB‡Wªv·vBW 3. wb‡Pi †KvbwU A¨v‡ivg¨vwUK †hŠM ? K C3H8 L C2H6 M C6H6 N C2H5OH 4. A¨vj‡Kvn‡ji Kvh©Kix MÖ“c⎯ K –COOH L –OH M –C2H5 N –CH3 5. wkLv cix¶vq †Kvb avZzi jeY †mvbvjx

njy eY© †`Lvq ? K †mvwWqvg L cUvwmqvg M K¨vjwmqvg N A¨vjywgwbqvg 6. K¨vjwmqv‡gi B‡jKUªb web¨vm n‡”Q⎯ K 2, 8 L 2, 8, 1 M 2, 8, 2 N 2, 8, 8, 2 7. Zvc ivmvqwbK mgxKi‡Y cÖgvY ZvcgvÎv

n‡”Q⎯ K 0°C L 25°C M 100°C N 273°C 8. M¨vm AvqZb m�Î Avwe®‹vi K‡ib⎯ K j¨vfqwm‡q L †M jym¨vK M Rb Wvëb N wiKUvi 9. nvB‡Wªv‡R‡bi ùzUbv¼ KZ ? K −253°C L −259°C M −263°C N −273°C 10. wb‡Pi †KvbwU Bu yi gvivi wel ˆZwi‡Z

eëüZ nq ? K mvjdvi L dmdivm M †K¬vwib N bvB‡Uªv‡Rb 11. †Kvb avZz ¶v‡ii mv‡_ wewµqv K‡i bv ? K †jW L wRsK M Kcvi N A¨vjywgwbqvg 12. wb‡Pi †KvbwU M¨vm bq?

K CO2 L CO M SiO2 N Cl2

13. †Kvb jeY Gwm‡W †hvM Ki‡j cuPv wW‡gi MÜ †ei nq ?

K mvj‡dU L mvjdvBW M †K¬vivBW N bvB‡UªU 14. m¤•„³ nvB‡WªvKve©‡bi mvaviY ms‡KZ

†KvbwU ? K CnH2n + 2 L CnH2n

M CnH2n − 1 N CnH2n−2 15. weï× B_vbwqK GwmW‡K e‡j⎯ K wf‡bMvi L G÷vi M M −¨vwmqvj GwmwUK GwmW N †K¬v‡ivdig 16. c −v¤vm †hŠM †KvbwU ? K CrO3 L ZnO M Al2O3 N PbO 17. A¨v‡gvwbqv cÖ ‘wZ‡Z AZ¨vbyK‚j

ZvcgvÎv KZ ? K 400-500° †M L 450-550° †M M 500-600° †M N 600-700° †M 18. I‡qj K¬_ Drcv`‡b †KvbwU eëüZ nq ? K ZnSO4 L ZnO M ZnCl2 N Zn(NO3)2

19. GK wK‡jvK¨vjwi KZ Ry‡ji mgvb ? K 4.18 Ryj L 41.8 Ryj M 418 Ryj N 4180 Ryj 20. †Kvb wewµqvwU GwmwUK Gwm‡Wi

wg_vBj MÖ“c‡K AvµgY K‡i ? K PCl3 L PCl5 M Cl2 N Na 21. A¨v‡gvwbqvg mvqv‡bU‡K Zvc w`‡j

BDwiqvq cwiYZ nq, GwU wK ai‡bi wewµqv ?

K mgvYyKiY L cÖkgb M wØ-we‡hvRb N cwjgviKiY 22. mvaviYZ KZ ZvcgvÎv e„w×‡Z wewµqvi

MwZ wØ¸Y nq ? K 40° †M L 30° †M M 20° †M N 10° †M 23. wb‡Pi †KvbwU FYvÍK cÖfveK ?

K MnO2 L KMnO2 M Na2SO3 N H3PO4

24. wb‡Pi †KvbwU DcavZz ? K cvi` L †evib M wRsK N Kcvi 25. †Kvb †hŠMwUi ev®•NbZ¡ 23 ? K N2O5 L SO2 M CO2 N NO2 26. Kve©b g‡bv·vB‡W Kve©‡bi mwµq †hvRbx

KZ ? K 1 L 2 M 3 N 4 27. wb‡Pi †KvbwU Aèag©xq A·vBW ? K Na2O L CaO M SO2 N CuO 28. wb‡Pi †Kvb avZz cwieZ©bkxj †hvRbx

cÖ k©b K‡i ? K wRsK L †mvwWqvg M dmdivm N A¨vjywgwbqvg 29. wWD‡Uwiqvg I wUªwUqvg Kvi AvB‡mv‡Uvc

? K bvBUªv‡Rb L nvB‡Wªv‡Rb M Kve©b N Aw·‡Rb 30. wb‡Pi †KvbwU wbw®Œq M¨vm bq ? K wg‡_b L AvM©b M wµcUb N †iWb 31. †Kvb cÖwµqvq gqjv `yM©Ü Qovq ? K AwfmªeY L `ªeY M e¨vcb N eªvDwbq MwZ 32. wb‡Pi †Kvb avZz GwmW n‡Z nvB‡Wªv‡Rb

AcmviY Ki‡Z cv‡i bv ? K Mg L Zn M Ag N FO 33| †Kvb †hŠMwU LyeB welv³ ? K SO2 L SiO2 M NH3 N CO 34. †KvbwU Kve©‡bi iƒc‡f` bq ? K nxiK L MÖvdvBU M Kve©vBW N †KvK 35. WªvB‡m‡ji ZworPvjK ej KZ ? K 3 †fvë L 2.5 †fvë M 2 †fvë N 1.5 †fvë

DËigvjv

1 K 2 L 3 M 4 L 5 K 6 N 7 L 8 L 9 K 10 L 11 M 12 M 13 L 14 K 15 M 16 N 17 K 18 19 N 20 M 21 K 22 N 23 N 24 L 25 N 26 L 27 M 28 M 29 L 30 K 31 M 32 M 33 N 34 M 35 N


7. XvKv †evW©-2003 imvqb : ˆbe© w³K cÖkœ 1| wb‡Pi †KvbwUi Avš�tAvYweK kw³ †ewk ? K. †K‡ivwmb L. mvaviY jeY M. cvwb N. bvB‡Uªv‡Rb 2| weÁvbx wiKUvi KZ mv‡j wecixZ AbycvZ

m �ÎwU cÖKvk K‡ib ? K. 1792 L. 1799 M. 1808 N. 1869 3| AvB‡mv‡Uv‡ci †¶‡Î †KvbwU mwVK ? K. fimsL¨v GKB _v‡K L. wbDUªb msL¨v GKB _v‡K M. †cÖvUb msL¨v mgvb _v‡K N. †cÖvUb I wbDUªb msL¨v mgvb _v‡K 4| BD‡iwbqv‡gi GKwU cigvYyi fi KZ ? K. 1.67×10−24 MÖvg L. 2.99×10−23 MÖvg M. 3.0×10−22 MÖvg N. 3.95×10−22 MÖvg 5| Gm,wU,wc-†Z 16 MÖvg Aw·‡Rb M¨v‡mi AvqZb

KZ ? K. 22.4 wjUvi L. 11.2 wjUvi M. 22,400 wjUvi N. 448 wjUvi 6| wbDwK¬qv‡mi e¨vm KZ ? K. 10−8 †m. wg. L. 10−15 †m. wg. M. 10−10 †m. wg. N. 10−5 †m. wg. 7| wb‡Pi †KvbwU cwieZ©bkxj †hvRbx cÖ k©b K‡i bv ? K. bvB‡Uªv‡Rb L. Kve©b M. †jW N. wRsK 8| †KvbwU A¨vjywgwbqvg dm‡dU-Gi ms‡KZ ? K. Al2 PO4 L. Al3 PO4 M. Al PO3 N. Al (PO4)3 [we: `ª: GB cÖ‡kœi mwVK DËi †bB| mwVK DËi Al PO4] 9| †KvbwU abvÍK †hŠM g�jK ? K. Kve©‡bU L. A¨v‡gvwbqvg M. dm‡dU N. WvB‡µv‡gU 10| Ca2+ G B‡jKUªb KqwU ? K. 18wU L. 11wU M. 12wU N. 20wU 11| wg‡_‡bi Mjbv¼ KZ ? K. −162° †m. L. −180° †m. M. −183° †m. N. −196° †m. 12| weÁvbx †Kv‡mj KZ mv‡j AvqwbK eÜ‡bi

aviYv †`b ? K. 1916 L. 1912 M. 1915 N. 1910

13| wb‡æi †KvbwU mwµqZv µgvbymv‡i mw¾Z Av‡Q ? K. K, Zn, Ag, Na L. K, Hg, Cu, Zn M. K, Cu, Hg, Zn N. K, Zn, Cu, Hg 14| VIA MÖ“‡ci †gŠ‡ji A·vBW †KvbwU ? K. P2O5 L. Cl2O7 M. Al2O3 N. SO3 15| wb‡æi †KvbwU RviK c`v_© bq ? K. Aw·‡Rb L. Kve©b g‡bv·vBW M. †K¬vwib N. Mvp bvBwUªK GwmW 16| µvBIjvBU Gi ms‡KZ †KvbwU ? K. NaAlF6 L. Na2AlF6 M. Na3AlF6 N. Na4AlF6 17| wb‡Pi †Kvb wewµqvwU mwVK ? K. SO2(g) + O2(g) = SO3 + 192

wK‡jvRyj L. 2SO2(g) + O2(g) = 2SO3 +

192.5 wK‡jvRyj M. 2SO2(g) + O2(g) = 2SO3

+ 92.5 wK‡jvRyj N. SO2(g) + O2(g) = SO3

+ 92 wK‡jvRyj 18| Aw·‡Rb AYy‡Z yÕwU Aw·‡Rb cigvYyi g‡a¨

eÜb kw³ KZ ? K. 435 wK‡jvRyj L. 464 wK‡jvRyj M. 498 wK‡jvRyj N. 1560 wK‡jvRyj 19| †jW Av‡qvWvBW-Gi eY© wKiƒc ? K. jvj L. bxj M. †e¸wb N. njy` 20| †KvbwU mycvi-A·vBW ? K. Na2O L. Na2O2 M. KO2 N. K2O 21| †mvwWqvg-Gi mv‡_ †Kvb †gŠjwUi a‡g©i wgj

me‡P‡q †ewk ? K. Kcvi L. A¨vjywgwbqvg M. cUvwmqvg N. K¨vjwmqvg 22| nvB‡Wªv‡RvwqK Gwm‡Wi MvVwbK ms‡KZ †KvbwU ? K. H ≡ N = N − N L. H − N = N ≡ N M. H ≡ N − N = N N. H = N − N ≡ N 23| _v‡qvmvj‡dU g�j‡Ki †hvRbx KZ ? K. 2 L. 3 M. 4 N. 1 24| †Zj ev Pwe© wK ?

K. A¨vj‡Kvnj L. d¨vwU Gwm‡Wi jeY M. G÷vi N. wM−mvwib 25| ch©vq mviwY‡Z Al-Gi Ae ’vb †Kv_vq ? K. MÖ“c IA L. MÖ“c IIA M. MÖ“c III A N. MÖ“c IVA 26| wkí‡¶‡Î SO2-Gi mv‡_ O2-Gi wewµqvq

AZ¨vbyK‚j ZvcgvÎv KZ ? K. 200-250° †m. L. 400-500° †m. M. 500-600° †m. N. 300-350° †m. 27| mvg¨ve ’v wbqš�‡Yi wbqvgK bq †KvbwU ? K. Pvc L. ZvcgvÎv M. NbgvÎv N. cÖfveK 28| wb‡Pi †Kvb avZzwU Kve©b weRviY cÖwµqvq

wb®‹vkb Kiv hvq bv ? K. A¨vjywgwbqvg L. †jW M. Avqib N. wRsK 29| bx‡Pi †Kvb avZzwU ïaygvÎ nvB‡Wªv‡K¬vwiK GwmW

Øviv Avµvš� nq ? K. †Mvì L. Kcvi M. gvK©vix N. A¨vjywgwbqvg 30| wb‡Pi †KvbwUi g„ y wgwó MÜ Av‡Q ? K. NH3 L. CO M. N2O N. NO 31| †KvbwU‡K kw³kvjx wØ-¶viKxq GwmW ejv nq ? K. HCOOH L. H2SO4 M. H2CO3 N. CH3COOH 32| B_vbwqK GwmW KZ wWMÖx DòZvq M−vwmqvj

A¨vwmwUK Gwm‡W cwiYZ nq ? K. 17° C L. 15° C M. 25° C N. 28° C 33| †Kvb m �Î imvq‡bi DbœwZ mva‡b AmvaviY

f‚wgKv †i‡L‡Q ? K. f‡ii wbZ¨Zv m�Î L. w¯’ivbycvZ m�Î M. M¨vm AvqZb m�Î N. A¨v‡fv‡M‡Wªvi m�Î 34| wb‡Pi †KvbwU AvqwbK †hŠM ? K. MgO L. NH3 M. CH4 N. H2O 35| gv‡e©j cv_‡ii mv‡_ jNy HCl-Gi wewµqvq wK

Drcbœ nq ? K. Aw·‡Rb L. A¨v‡gvwbqv M. †K¬vwib N. Kve©b WvB-A·vBW

DËigvjv 1 L 2 K 3 M 4 N 5 K 6 L 7 N 8 K 9 L 10 K 11 M 12 K 13 N 14 N 15 L 16 M 17 L 18 M

19 N 20 M 21 M 22 L 23 K 24 M 25 M 26 L 27 N 28 K 29 N 30 M 31 L 32 K 33 N 34 K 35 N


8. XvKv †evW©-2002 imvqb : ˆbe© w³K cÖkœ 1| wb‡Pi †Kvb †hŠMwU mg‡hvRx †hŠM ? K. MgO L. NaI M. NH3 N. CaS 2| 2KMnO4+ 5 COOH + 3 H2SO4 = | COOH

K2SO4+2MnSO4+10 CO2 + 8H2O. − wewµqvwU‡Z cÖfveK †K ? K. KMnO4 L. H2SO4 M. K2SO4 N. MnSO4 3| Zwor we‡kvab cÖwµqvq avZz weï×Ki‡Yi mgq

avZzwU‡K eënvi Kiv nq wK wn‡m‡e ? K. K¨v‡_vW L. Zwor we‡k −l¨ M. A¨v‡bvW N. †fvëwgUvi 4| †h †Kv‡l ivmvqwbK kw³ ê y wZK kw³‡Z

iƒcvš�wiZ nq Zv‡K wK ejv nq ? K. Zwor we‡k −l¨ L. Zwor we‡k −l¨ †Kvl M. M¨vjfvwbK †Kvl N. †fvëwgUvi 5| †jKj¨vÝ †m‡j eëüZ g¨v½vwbR WvB-

A·vB‡Wi wK N‡U ? K. RviY N‡U L. weRviY N‡U M. wbi‡c¶ _v‡K N. cÖfve‡Ki Kvh© m¤•vw`Z K‡i 6| †Kvb c×wZ‡Z †jvnvi LÊ †Rvov jvMv‡Z

A¨vjywgwbqvg eënvi Kiv nq ? K. e¨Z¨v Pzwj − c×wZ‡Z L. civeZ©K, c×wZ‡Z M. _vg©vBU c×wZ‡Z N. weRviY c×wZ‡Z 7| †µvgjv‡ji ms‡KZ wK ? K. PbCrO4 L. Pb3O4 M. PbO. PbCrO4N. PbCrO3 8| †jŠ‡ni wbw®ŒqZvi KviY wK ? K. bvBwUªK GwmW L. UªvB Avqib †U‡Uªv·vB‡Wi AveiY M. Kcvi mvj‡dU N. gwiPv 9| ˆRe ªve‡K cvwbi Dcw ’wZ wbY©‡qi Rb¨ wb‡Pi

†Kvb †hŠM eënvi Kiv nq ? K. Abv`ª© AlCl3 L. Abv`ª© ZnSO4 M. Abv`ª© CuSO4 N. Abv`ª© CaCl2 10| bx‡Pi †Kvb †hŠMwU ˆRe †hŠM ? K. (NH4)2CO3 L. H2N−CO−NH2 M. NH4CNO N. NH4HCO3

11| A¨v‡gvwbqvhy³ AgNO3 ªe‡Yi mv‡_ wmjfvi A¨vwmwUjvBW- Gi mv v Aat‡¶c m„wó Ki‡j †hŠMwU wK n‡e ?

K. A¨vj‡Kb L. A¨vjwKb M. A¨vjKvBb N. †ebwRb 12| GB gnvwe‡k¦i me wKQy‡K yB fv‡M fvM Kiv

n‡q‡Q Zv wK ? K. †gŠwjK c`v_© I †hŠwMK c`v_© L. †hŠwMK c`v_© I wgkÖ c`v_© M. ˆRe I A‰Re c`v_© N. c`v_© I kw³ 13| †Kvb wewµqvwU mwVK bq ? K. CuSO4 + Zn = ZnSO4 + Cu L. CuSO4 + Fe = FeSO4 + Cu M. CuSO4 + 2Ag = Ag2SO4 + Cu N. 2AgNO3 + Cu = Cu(NO3)2 + 2Ag 14| wbæwjwLZ mvjdvi wewkó †hŠM¸‡jvi g‡a¨

†Kvb †hŠMwU‡Z mvjdv‡ii †hvRbx 4 ? K. SO3 L. H2SO3 M. H2SO4 N. Na2SO4 15| GKwU †gŠ‡ji cvigvYweK msL¨v 38| ch©vq

mviwY‡Z Zvi Ae ’vb †KvbwU ? K. 4_© ch©v‡q IIA †kÖYx‡Z L. 4_© ch©v‡q VA †kÖYx‡Z M. 5g ch©v‡q IIA †kÖYx‡Z N. 5g ch©v‡q IVA †kÖYx‡Z 16| wb‡Pi Avqb¸‡jvi g‡a¨ RviK †KvbwU ? K. Fe++ L. Sn++++ M. Cl− N. S2− 17| †cÖvjs hš� †Kvb avZz wb®‹vk‡b eëüZ nq ? K. Fe L. Cu M. Zn N. Al 18| 1 †gvj cvwb‡Z AYyi msL¨v †KvbwU ? K. 22.4 wjUvi L. 2wU M. 6.023×1023 wU N. 3wU 19| mvevb Zwii mgq DcRvZ wn‡m‡e wK cvIqv hvq ? K. B_vbj L. wg_vbj M. wf‡bMvi N. wM−mvwib 20| CaO+CO2=CaCO3 GwU †Kvb ai‡bi wewµqv ? K. ms‡k −lY L. cÖkgb M. ms‡hvRb N. RviY-weRviY 21| cvwbi AYyi AvK…wZ †KvbwU ? K. †KŠwYK L. mij‰iwLK M. PZz �jKxq N. wcivwgW AvK…wZi 22| GK d¨viv‡W mgvb KZ ? K. 9.65×104 Kzj¤ L. 9.468×10−24 Kzj¤ M. 9.60×10−19 Kzj¤ N. 6.023×1023 Kzj¤

23| −2178O G B‡jKUªb msL¨v KZ ?

K. 8 L. 9 M. 10 N. 11 24| jeY I evwji wgkÖ‡Y je‡Yi Dcw ’wZ mbv³

Ki‡Z wb‡Pi †KvbwU eënvi Kiv nq ? K. AgCl L. AgNO3 M. BaCl2 N. Ba(NO3)2 25| cÖkgb wewµqvq wK Drcbœ nq ? K. jeY I cvwb L. jeY M. GwmW I jeY N. jeY I ¶vi 26| wM−mvwi‡bi GK †gvj KZ ? K. 182 MÖvg L. 92 MÖvg M. 6.023×1023 N. 92 27| K3[Fe(CN)6]†hŠ‡M †jŠ‡ni †hvR¨Zv KZ ? K. 4 L. 3 M. 2 N. 1 28| we−÷vi Kcv‡ii weï×Zvi nvi KZ ? K. cÖvq 65% L. cÖvq 98% M. cÖvq 100% N. cÖvq 50% 29| A¨v‡gvwbqvg A·v‡jU ªeY †hv‡M †Kvb avZzi

je‡Yi ªeY n‡Z mv`v Aat‡¶c m„wó nq ? K. K¨vjwmqvg L. g¨vM‡bwmqvg M. cUvwmqvg N. †mvwWqvg 30| †Kvb †gŠ‡j wbDUªb †bB ? K. wjw_qvg L. Aw·‡Rb M. wnwjqvg N. nvB‡Wªv‡Rb 31| ejq cix¶v Øviv †Kvb Avqb mbv³ Kiv nq ? K. NO3

2– L. NO34–

M. NO33– N. NO3

1– 32| cvwbi GKwU AYy‡Z Aw·‡R‡bi wbtm½

B‡jKUªb †Rvo KqwU Av‡Q ? K. 4wU L. 3wU M. 2wU N. 1wU 33| ÔmKj M¨v‡mi 1 †gv‡j mgvb msL¨K AYy

_v‡KÕÑ GB evK¨wU wb‡Pi †KvbwUi m‡½ m¤•K©hy³ ?

K. M¨vm AvqZb m�Î L. ev‡R©wjqv‡mi m�Î M. A¨v‡fv‡M‡Wªvi msL¨v N. A¨v‡fv‡M‡Wªvi m�Î 34| SO3

2− g�j‡K mvjdv‡ii †hvRbx KZ ? K. 2 L. 3 M. 4 N. 6 35| SO2 †hŠMwU‡Z mvjdv‡ii myß †hvRbx KZ ? K. 2 L. 4 M. 6 N. k �b¨

DËigvjv 1 M 2 N 3 M 4 M 5 L 6 M 7 K 8 L 9 M 10 L 11 M 12 N 13 M 14 L 15 M 16 L 17 M 18 M

19 N 20 M 21 K 22 K 23 M 24 L 25 K 26 L 27 L 28 L 29 K 30 N 31 K 32 M 33 N 34 M 35 K


9. XvKv †evW©-2001 imvqb : ˆbe© w³K cªkœ 1| cwjw_b ˆZwi‡Z †Kvb cÖfveKwU eëüZ nq ? K. UvB‡Uwbqv‡gi ˆRe-avZe †hŠM L. wb‡Kj P‚Y© M. c −vwUbvg P‚Y© N. f¨vbvwWqvg †cÈv·vBW 2| nvB‡Wªv‡R‡bi ùzUvbv¼ KZ ? K. Ñ2630 †mt L. Ñ2590 †mt M. Ñ2530 †m N. Ñ2730 †mt 3| wf‡bMv‡i eëüZ nq †KvbwU ? K. B_vBj A¨vj‡Kvnj L. A¨vwmwUK GwmW M. Kve©wbK GwmW N. diwgK GwmW 4| NaCl + AgNO3 = AgCl + NaNO3

wewµqvwU GKgyLx nIqvi KviY wK ? K. NaNO3 Gi Aat‡¶c m„wó nq e‡j L. NaNO3 cvwb‡Z `ªeYxq e‡j M. AgCl cvwb‡Z `ªexf‚Z nq e‡j N. AgCl Gi Aat‡¶c m„wó nq e‡j 5| Zwor we‡k−l‡Yi mgq K¨v‡_vW (Cathode)

n‡”QÑ K. wbi‡c¶ ZworØvi L. RviY ZworØvi M. weRviY ZworØvi N. RviY-weRviY †Kvb wewµqv N‡U bv 6| †Kvb KwVb c`v_©‡K DËß Ki‡j mivmwi ev‡®•

cwiYZ nq| GB cÖwµqvi bvg wK ? K. ev®•xfeb L. Mjb M. EaŸ©cvZb N. Nbxfeb 7| †evib, wmwjKb, Av‡m©wbK n‡”QÑ K. avZz L. DcavZz M. AavZz N. avZz msKi 8| ivmvqwbK wewµqvi Rb¨ †KvbwU AZ¨vek¨K ? K. Zvc L. Av‡jv M. cÖfveK N. ms¯•k© 9| M−y‡Kv‡Ri ’‚j ms‡KZ †KvbwU ? K. CH2O L. C6H12O6 M. CHO N. COH 10| A¨vjywgwbqvg avZz cvZjv nvB‡Wªv‡K¬vwiK Gwm‡Wi

m‡½ wewµqv K‡i nvB‡Wªv‡Rb Drcbœ K‡i| wb‡æi †Kvb ivmvqwbK mgxKiYwU mwVK ?

K. Al + 2HCl = AlCl2 + H2

L. Al + 3HCl = AlCl3 + 3H M. 3Al + HCl = Al3Cl + H N. 2Al + 6HCl = 2AlCl3 + 3H2

11| wb‡Pi †Kvb avZz GwmW n‡Z nvB‡Wªv‡Rb‡K AcmviY Ki‡Z cv‡i bv ?

K. Mg L. Ag M. Zn N. Fe 12| cigvYy‡Z kw³ �i m¤•‡K© aviYv †`b †K ? K. bxjm& †evi L. iv`vi‡dvW© M. P¨vW&DBK N. g¨v·I‡qj 13| ch©vq mviwYi †Kvb ch©v‡q cvigvYweK msL¨v

hZB e„w× cvq, cigvYyi AvKvi ZZÑ K. w¯’i _v‡K L. e„w× cvq M. n«vm cvq N. ùxZ nq 14| g„ y cvbxq ˆZwi‡Z †Kvb M¨vm eëüZ nq ? K. SO2 L. CO2 M. NO2 N. NH3 15| cix¶vMv‡i Kve©b WvB-A·vBW M¨vm msMÖn Kiv

nqÑ K. evqyi E×©gyLx Acmvi‡Yi mvnv‡h¨ L. evqyi wbægyLx Acmvi‡Yi mvnv‡h¨ M. cvwb Acmvi‡Yi mvnv‡h¨ N. cvwb‡Z `ªexf �Z K‡i 16| wb‡æi †KvbwU †cvjvi †hŠM? K. †ebwRb L. B_vi M. †cUªj N. A¨vj‡Kvnj 17| Kv÷ Avqi‡b Kve©‡bi kZKiv cwigvY KZ ? K. 0.15Ñ1.5% L. 0.1Ñ0.25% M. 2.0Ñ4.5% N. 0.25Ñ2.5% 18| CaO + CO2 = CaCO3 GwU †Kvb

ai‡bi wewµqv? K. cÖwZ¯’vcb L. cÖkgb M. we‡k −lY N. ms‡hvRb 19| Zn + Cu++ → Zn++ Cu, wewµqvwU†Z

†KvbwU weRvi‡Ki KvR K‡i? K. Cu++ L. Zn M. Zn++ N. Cu 20| mg‡hvRx †hŠM †KvbwU ? K. NaCl L. AlCl3 M. PCl3 N. MgCl2 21| cvigvYweK msL v Bs‡iRxi †Kvb A¶i Øviv

cÖKvk Kiv nq ? K. Z L. A M. m N. N 22| GKwU †cÖvU‡bi fi KZ ? K. 1.66×10-24 MÖvg L. 1.66×1024 MÖvg M. 9.11×10-28 MÖvg N. 9.11×1028 MÖvg

23| †hŠwMK c`v‡_©i ¶z ªZg Ask, hv H †hŠ‡Mi êwkó¨ A¶zYœ iv‡L Zv‡K wK e‡j ?

K. B‡j±«b L. †cÖvUb M. AYy N. cigvYy 24| †ebwRb wK ai‡bi †hŠM? K. A¨vwj‡dwUK †hŠM L. A¨vwjmvBwK¬K †hŠM M. †nUv‡ivmvBwK¬K †hŠM N. A¨v‡iv‡gwUK †hŠM 25| B‡jKUªb MÖnY K‡i A vbvqb (Anion) m„wó Ki‡j

†gŠjwU n‡eÑ K. avZz L. AavZz M. AcavZz N. wbw®Œq †gŠj 26| wb‡æi †Kvb avZzwU mwµqZv wmwi‡Ri mevi wb‡P n‡e? K. wmjfvi L. Kcvi M. wRsK N. †Mvì 27| GKB †gŠ‡ji cigvYymg�‡ni g‡a¨ eÜb m„wói

gva¨‡g wewfbœ ai‡bi wkKj Zwii ag©‡K ejv nqÑ K. K¨vwU‡bkb L. mgvYyZv M. G÷vwiKiY N. cwjgviKiY 28| AvaywbK wWUvi‡R‡›Ui m‡½ hy³ _v‡K †KvbwU ? K. K¨vjwmqvg cwjdm‡dU L. g¨vM‡bwmqvg cwjdm‡dU M. †mvwWqvg cwjdm‡dU N. Avqib cwjdm‡dU 29| ÔAYyÕ aviYvi mªóv n‡”QbÑ K. Wvëb L. A¨v‡fv‡M‡Wªv M. ev‡R©wjqvm N. j¨vfqwm‡q 30| g¨vM‡bwmqvg dm‡dU Gi mwVK ms‡KZ †KvbwU ? K. Mg2PO4 L. Mg3(PO4)2 M. MgPO4 N. Mg2(PO4)2 31| ˆRe A‡èi Kvh©Kix g�jK †KvbwU ? K. −COOH L. −OH M. −CHO N. > CO 32| wmwjÛv‡i K‡i †h M vm wewµ Kiv nq Zv cÖavbZÑ K. wg‡_b L. B‡_b M. †cÖv‡cb N. weD‡Ub 33| UªvbwR÷vi I gvB‡µv mvwK©U cÖ ‘wZ‡Z wb‡Pi

†KvbwU eëüZ nq ? K. Kve©b L. MÖvdvBU M. wmwjKb N. `¯ �v 34| bvB‡Uªv‡Rb AYyi MvVwbK ms‡KZ †KvbwU ? K. N - N L. N = N M. N ≡ N N. N ≡ N 35| wg‡_‡bi `nb Zvc †gvj cÖwZ KZ ? K. 1560 kJ L. -1560 kJ M. 1460 kJ N. 1260 kJ [[we: `ª: GB cÖ‡kœi mwVK DËi †bB mwVK DËi n‡e

890 kJ/ mole]

DËigvjv 1 K 2 M 3 L 4 N 5 M 6 M 7 L 8 N 9 K 10 N 11 L 12 K 13 L 14 L 15 K 16 N 17 M 18 N

19 L 20 M 21 K 22 K 23 M 24 N 25 L 26 N 27 K 28 M 29 L 30 L 31 K 32 K 33 M 34 N 35


10. Kzwgj−v †evW©-2009 imvqb : ˆbe© w³K cÖkœ mgq-35 wgwbU; c �Y©gvb -35


1. GK cigvYyK M¨vm †Kvb&wU ? K nvB‡Wªv‡Rb L A¨v‡gvwbqv M wµÞb N bvB‡Uªv‡Rb 2. _v‡qvmvj‡dU g�j‡Ki †hvRbx n‡”Q ⎯ K 1 L 2 M 3 N 4 3. ch©vq mviYx‡Z Kve©‡bi Ae ’vb †Kvb& MÖ“‡c ? K IV L V M II N VII 4. gv‡e©j cv_‡ii mv‡_ jNy HCl Gi

wewµqvq †Kvb& M¨vm Drcbœ nq ? K Aw·‡Rb L †K¬vwib M Kve©b WvB A·vBW N A¨v‡gvwbqv 5. †Kvb&wU A¨v‡iv‡gwUK †hŠM ? K C3H8 L C10H8 M C2H6 N C2H5OH 6. †Kvb& avZz ¶v‡ii mv‡_ wewµqv K‡i bv ? K Kcvi L †jW M wRsK N A¨vjywgwbqvg 7. A¨vjKvB‡bi mvaviY ms‡KZ †Kvb&wU ? K CnH2n+2 L CnH2n-2 M CnH2n N CnH2n-1

8. wkLv cix¶vq †Kvb& GwmW eënvi Kiv nq ?

K HClO4 L HNO3 M H2SO4 N HCl 9. †Kvb&wU abvZ¥K †hŠM g�jK ? K Kve©‡bU L A¨v‡gvwbqvg M dm‡dU N WvB‡µv‡gU 10. wjw_qv‡gi mv‡_ †Kvb& †gŠjwUi a‡g©i wgj

me‡P‡q †ewk ? K †mvwWqvg L K¨vjwmqvg M g¨vM‡bwmqvg N A¨vjywgwbqvg 11. †Kvb&wU‡K kw³kvjx wØ¶viKxq GwmW ejv

nq ? K HCl L H2SO4 M H2CO3 N H2PO4

12. mvevb ˆZixi mgq DcRvZ wn‡m‡e †Kvb&wU cvIqv hvq ?

K CH3OH L C10H8 M CH3COOH N C3H8O3 13. NaCl Gi Dcw¯’wZ mbv³ Ki‡Z

†Kvb&wU eënvi Kiv nq ?

K AgCl L AgNO3 M BaCl2 N Ba (NO3)2

14. SO2-4 g�j‡K mvjdv‡ii †hvRbx KZ ?

K 2 L 3 M 4 N 6 15. KZ MÖvg Aw·‡‡Rbi AvqZb‡K

Aw·‡R‡bi †gvjvi AvqZb e‡j ? K 4 MÖvg L 16 MÖvg M 32 MÖvg N 18 MÖvg 16. wM−mvwi‡bi GK †gvj n‡”Q⎯ K 182 MÖvg L 92 MÖvg M 7.023×1023 MÖvg N 192 MÖvg 17. †Kvb&wU †c −‡KW jvBg ? K CaO L Ca(OH)2 M CaCO2 N Ca(HCO3)2

18. Ka (Fe(CN)6] †hŠ‡M †jŠ‡ni †hvR¨Zv n‡”Q ?

K 4 L 3 M 2 N 1 19. †Kvb& g�jK¸‡jvi †hvRbx GKB ? K HCO3, S2O3, CrO4 L SO3, PH4, SiO3 M CN, CO2, NO3 N SO3, CrO4, SiO3 20. we −óvi Kcv‡ii weï×Zvi nvi KZ ? K cÖvq 65% L cÖvq 98% M cÖvq 100% N cÖvq 50% 21. evZv‡m kZKivKZ fvM bvB‡Uªv‡Rb Av‡Q ? K 58% L 68% M 78% N 88% 22. me‡P‡q †ewk B‡jK‡UªvcwRwUf avZz †Kvb&wU ? K †mvwWqvg L A¨vjywgwbqvg M Avqib N Kcvi 23. †Kvb&wU AavZz ? K Avqib L wmjfvi M mvjdvi N Kcvi 24. AYyi aviYv †`b †K ? K A¨v‡fv‡M‡Wªv L Wvëb M ev‡R©wjqvm N d¨viv‡W 25. f¨vbvwWqvg †c›UvA·vBW †Kvb&wU ? K V2O5 L V5O2

M V3O5 N V5O3

26. cvigvYweK e¨vmva© IA° mgvb⎯ K 10-13 cm L 1010 cm M 108 cm N 10-8 cm 27. ev®•NbZ¡ wbY©‡qi †¶‡Î †Kvb& M¨vm

Av`k© wn‡m‡e aiv nq ? K †h-†Kvb M¨vm L nvB‡Wªv‡Rb M bvB‡Uªv‡Rb N Aw·‡Rb 28. CH3 - CH = CH2 †hŠMwUi bvg n‡”Q

⎯ K 2-†cÖvwcb L 1-†cÖvwcb M 2-weD‡Ub N 2-weDwUb 29. nvB‡WªvKve©‡b †Kvb& †Kvb& †gŠj Av‡Q ? K Kve©b I bvB‡Uªv‡Rb L Kve©b I wmwjKb M Kve©b I Aw·‡Rb N Kve©b I nvB‡Wªv‡Rb 30. uv‡Zi wPwKrmvq †Kvb&wU eëüZ nq ? K CaCO3 L PbO M ZnO N ZnSO4. 7H2O 31. wbgœwjwLZ †hŠM¸‡jvi g‡a¨ †Kvb&

†hŠMwU‡Z mvjdv‡ii myß †hvRbx `yB ? K H2SO4 L H2SO3 M Na2SO4 N SO3

32. mwµqZv µ‡g †Kvb& Avq‡Yi Ae¯’vb mevi Dc‡i ?

K SO2-3 L OH-

M SO2-4 N Cl-

33. mv`v wfwUªq‡ji ms‡KZ †KvbwU ? K ZnSO4. 7H2O L FeSO4. 7H2O M CuSO4. 5H2O N ZnSO4. 5H2O 34. †Kvb& †hŠM g�jKwU GK‡hvRx ? K PO4 L CrO4 M SiO2 N CN 35. AavZz nIqv m‡Ë¡I †Kvb& †gŠjwU weRviK

? K Aw·‡Rb L bvB‡Uªv‡Rb M wmwjKb N Kve©b

DËigvjv 1 M 2 L 3 K 4 M 5 L 6 K 7 L 8 N 9 L 10 K 11 L 12 N 13 L 14 M 15 M 16 L 17 L 18 L 19 N 20 L 21 M 22 K 23 M 24 K 25 K 26 N 27 L 28 L 29 N 30 M 31 L 32 L 33 K 34 N 35 N

†evW© cix¶vi cªkœ I DËi : ˆbe© w³K Kzwgj−v †evW©


11. Kzwgj−v †evW©-2008 imvqb : ˆbe© w³K cÖkœ 1. wµcU‡bi †kl K¶c‡_ KqwU B‡jKUªb Av‡Q

? K 8 L 2 M 4 N 6 2. GK K¨vjwi KZ Ry‡ji mgvb ? K 1000 Ryj L 4.18 Ryj M 4.50 Ryj N 100 Ryj 3. STP- †Z 16g Aw·‡R‡bi AvqZb KZ

? K 22.4 wj. L 22.600 wj. M 11.2 wj. N 44.8 wj. 4. mvaviYZ KZ ZvcgvÎv e„w×‡Z wewµqvi

MwZ wØ¸Y nq ? K 40° †m. L 30° †m. M 20° †m. N 10° †m. 5. †KvbwU wØjeY ? K Bcmg jeY L e −ywfwUªIj

M cUvk Gjvg N meyR wfwUªIj 6. Kv÷ Avqi‡b wmwjK‡bi cwigvY KZ ? K 1 – 1.5% L 4 – 4.5% M 2 – 2.5% N 3 – 3.5% 7. ch©vq mviwYi k�b¨ MÖ“‡ci †gŠ‡ji mvaviY

Ae ’v n‡”Q ⎯ K KwVb L Zij

M M¨vmxq N KwVb I Zij 8. wj‡gvbvBU AvKwi‡Ki ms‡KZ †KvbwU ? K Fe3O4 L Fe2O3 M Fe3O4.3H2O N Fe2O3.3H2O 9. wg‡_b AYyi AvK…wZ wKiƒc ? K ˆiwLK L †KŠwYK M wcivwgWxq N PZz¯�jKxq 10. wPwbi kieZ n‡”Q ⎯ K AmgmË¡ wgkªY L mgmË¡ wgkªY M †gŠwjK c`v_© N †hŠwMK c`v_© 11. †Kvb M¨vm ¶vixq ? K NH3 L NO M CO2 N NO2 12. H2SO4 + Zn = ZnSO4 + H2 G

wewµqvwU ⎯ K cÖwZ¯’vcb L cªkgb M cvwb‡hvRb N RviY-weRviY 13. †Kvb †hŠ‡Mi ev®•NbZ¡ 23 ? K N2O5 L SO2 M CO2 N NO2

14. GKwU B‡jKUª‡bi Avmj fi KZ ? K 9.110 × 10–28 Mªvg L 9.22 × 10–28 MÖvg

M 9.122 × 10–28 MÖvg N 9.130 × 10–28 MÖvg 15. CH3 – CH = CH – CH3 †hŠMwUi

bvg wK ? K 1- weDwUb L 2- weDwUb M 2- weDwUb N weDwUwjb 16. ivmvqwbK wewµqvi †¶‡Î †KvbwU Aek¨B

cÖ‡qvRbxq ? K Av‡jvK L wewµqKmg�‡ni g‡a¨ ms¯•k© M Pvc N Zvc 17. mvaviY je‡Yi Mjbv¼ ⎯ K 801° †m. L 1000° †m. M 1446° †m. N 1065° †m. 18. †KvbwU Zvcnvix wewKªqv ? K CaO (s) + H2O (l) → Ca

(OH)2(s) L C(s) + O2 (g) → CO2 (g) M N2 (g) + O2 (g) → 2NO (g) N 2H2 (g) + O2(g) → 2H2 O (l) 19. †Kvb avZzwU ¶v‡ii mv‡_ wewµqv K‡i bv

? K Zn L Al M Pb N Cu 20. M¨vm AvqZb m�Î Avwe®‹vi K‡ib ⎯ K wbDUb L wiKUvi M †MjymvK N Wvëb 21. ch©vq mviYx‡Z bvB‡Uªv‡R‡bi Ae¯’vb

⎯ K MÖ“c-1 L MÖ“c-V M MÖ“c-II N MÖ“c-VII 22. †Zj ev Pwe© n‡”Q GK ai‡bi ⎯

K A¨vjwWnvBW L A¨vj‡Kvnj M wWUvi‡R›U N G÷vi 23. ch©vq mviwYi mwZ¨Kvi wfwË wK ? K cvigvYweK fi L Zzj¨v¼ M cvigvYweK msL¨v N B‡j±ªb

web¨vm 24. A¨v‡fv‡M‡Wªv msL¨vi gvb n‡”Q ⎯ K 6.02 × 1023 L 1.66 × 10–24

M 6.02 × 10–23 N 6.23 × 1013

25. A·vBW Avq‡bi (O2) B‡jKUªb msL¨v n‡”Q ⎯

K 10 wU L 9 wU M 8 wU N 6 wU 26. †Kvb AvqbwU ejq cix¶v †`q ? K mvj‡dU L bvB‡UªU M †K¬vivBW N Kve©‡bU 27. wewµqvi mvg¨ve¯’v wb‡Pi †KvbwU Øviv

cÖfvweZ nq bv ? K wewµqvi cvÎ L Pvc M NbgvÎv N ZvcgvÎv 28. GKwU nvB‡Wªv‡Rb cigvYyi fi ⎯ K 1.673 × 1024 MÖvg L 1.673 × 10–23 MÖvg

M 1.370 MÖvg N 1.02 MÖvg 29. †ebwR‡bi ¯’ �j ms‡KZ nj ⎯ K CH2 L CH M CH2 N CH2 30. wb‡gœi †KvbwU Zwor Awe‡k−l¨ ? K wPwb L mvaviY jeY M Kcvi mvj‡dU N mvjwdDwiK

GwmW 31. Na3AlF6 Gi Mjbv¼ KZ ? K 2050° †M L 900 – 950° †M M 1000° †M N 801° †m 32. Zn + Cu++ = Zn++ + Cu wewµqvwU‡Z

†KvbwU weRviK ? K Cu++ L Zn ++

M Zn N Cu 33. †KvbwU †gŠwjK KwYKv bq ? K wbDUªb L †cÖvUb M nvB‡Wªv‡Rb cigvYy N B‡jKUªb 34. wb‡gœi wewµqvq †Kvb c`v_© RvwiZ n‡q‡Q

? H2S + Cl2 = S + 2HCl K Cl2 L H2S M S N HCl 35. wb‡Pi †KvbwU wbi“ K ? K HNO3 L H3PO4

M H2SO4 N H2CO3

DËigvjv

1 K 2 L 3 M 4 N 5 M 6 K 7 M 8 N 9 N 10 L 11 K 12 K 13 N 14 K 15 L 16 L 17 K 18 M 19 N 20 M 21 L 22 N 23 N 24 K 25 K 26 L 27 K 28 K 29 L 30 K 31 M 32 M 33 M 34 L 35 M


12. Kzwgj−v †evW©-2007 imvqb : ˆbe© w³K cªkœ 1. mvaviY mvjdvi AYyi mwVK ms‡KZ †KvbwU? K S8 L S2

M S N S4

2. 2713Al3+ Gi †¶‡Î wb‡æi †KvbwU mwVK bq?

K G‡Z 13 wU †cÖvUb Av‡Q L G‡Z 13 wU wbDUªb Av‡Q M G‡Z 13 wU B‡jKUªb Av‡Q N Gi wbDUªb I †cÖvUb msL¨v 27 3. avZzmg�n fvj we`y r cwievnx †Kb? K avZzmg�n Lye KwVb e‡j L avZzmg�n K¨vUvqb m„wó K‡i e‡j M avZzmg�n AvqwbK †hŠM MVb K‡i e‡j N avZz‡Z wegy³ B‡jKUªb _vKvi Kvi‡Y 4. 2FeCl2 + Cl2 = 2FeCl3 wewµqvwU‡Z

wewµq‡K †K¬vwi‡bi †hvRbx KZ?

K –1 L k�b¨ M +1 N 7 5. Zvc ivmvqwbK mgxKi‡Yi cÖgvY ZvcgvÎv

†KvbwU? K 25 K L 298 K M 0 K N –273 K 6. wb‡Pi †KvbwU mwµqZvi mwVK µg? K K > Zn > Pb > Cu L K > Mg > Na > Cu M Zn > Al > Fe > Cu N Ca > Pb > Zn > Ag 7. cvwbi AYy‡Z Aw·‡R‡bi KqwU gy³‡Rvo

B‡jKUªb Av‡Q? K GKwU L wZbwU M `yBwU N PviwU 8. †Kvb avZzi je‡Yi ªe‡Y A¨v‡gvwbqvg

A·v‡jU †hvM Ki‡j mv`v Aat‡¶c c‡o? K K¨vjwmqvg L cUvwmqvg M A¨vjywgwbqvg N wRsK 9. wb‡Pi †KvbwU RviK bq? K Av‡qvwWb L cUvwkqvg WvB‡µv‡gU M A¨vjywgwbqvg N Aw·‡Rb 10. wb‡Pi †Kvb cwieZ©bwU †fŠZ cwieZ©b? K nvB‡Wªv‡Rb I Aw·‡R‡bi wgkÖ‡Y cvwb Zwi L †gvgevwZ R¡vjv‡bv M Rjxqev®• VvÊv K‡i eid ˆZwi N †jvnvq gwiPv cov

11. NH4CNO ∆

⎯⎯→H2N – CO – NH2 wewµqvwU †Kvb ai‡bi?

K ms‡hvM wewµqv L we‡qvRb wewµqv M mgvYyKiY wewµqv

N wØwe‡qvRb wewµqv 12. mvevb ˆZwii mgq DcRvZ wnmv‡e †KvbwU

cvIqv hvq? K wM −mvwib L w÷qvwiK GwmW M wf‡bMvi N B_vbj 13. mKj avZzi †Kvb jeY cvwb‡Z `ªeYxq? K Kve©‡bU L bvB‡UªU M dm‡dU N mvj‡dU 14. A¨vjKvBj g�j‡Ki mvaviY ms‡KZ †KvbwU? K CnH2n+2 L Cn H2n

M CnH2n–2 N CnH2n + 1

15. M −vwmqvj A¨v‡mwUK GwmW Gi ms‡KZ †KvbwU?

K CH3COOH L HCOOH M CH3CH2COOH N CH3CH2OH 16. wg‡_‡bi ùzUbv¼ KZ? K –183°C L – 152°C M – 89°C N – 162°C 17. †mvwWqvg-Gi mv‡_ †Kvb †gŠjwUi a‡g©i wgj

Av‡Q? K Kcvi L cUvwkqvg M K¨vjwmqvg N A¨vjywgwbqvg 18. Kv÷ Avqi‡bi †g½vwb‡Ri cwigvY KZ? K 1.0% L 2.5% M 0.4% N 0.2% 19. wb‡Pi †Kvb `jwUi †hvRbx yB? K gvK©vix (BK), wmwj‡KU, mvjdvBU L Avqib (BK), mvqvbvBW, †µv‡gU M ÷ªbwmqvg, bvB‡UªU, cUvwkqvg N wmjfvi,nvB‡Wªv‡Rb Kve©‡bU, †µvwgqvg 20. wg‡_‡bi `nb Zvc KZ? K 980 kJ/ mole L 242 kJ/ mole M 422 kJ mole N 890 kJ mole 21. †Kvb M¨vmwU‡K jvwds M¨vm ejv nq? K N2O L O3 M NH3 N HCl 22. GK MÖvg nxi‡K KqwU Kve©b cigvYy we`¨gvb? K 3.346 × 1022 wU L 5.02 × 1022 wU

M 1.99 × 10–23 wU N 5.2 × 1023 wU 23. ZvcgvÎv e„w× Ki‡j wewµqvq wK N‡U? K wewµqvi MwZ ev‡o L wewµqvi MwZ K‡g M MwZ AcwiewZ©Z _v‡K N wewµqvi aib cvëvq 24. wb‡Pi †KvbwU mv`v wfwUªIj bv‡g cwiwPZ? K ZnSO4. 5H2O L ZnSO4. 7H2O

M ZnSO4. 10H2O N ZnSO4 25. civeZ©K Pzwj−‡Z evqycÖev‡n †jW g‡bvA·vBW‡K

DËß K‡i wkí‡¶‡Î †KvbwU cvIqv hvq? K PbO2 L Pb (NO3)2 M Pb3O4 N H2 (PbCl4) 26. †KvbwU µvBIjvB‡Ui ms‡KZ? K Al2O3 nH2O L NaAlF6 M Na3AlF6 N Na6AlF3 27. wb‡Pi †Kvb A·vBWwU GwmW I ¶v‡ii mv‡_

wewµqv K‡i jeY I cvwb Drcbœ K‡i ? K MgO L K2O M Na2O N Al2O3

28. wb‡Pi †KvbwU wbi‡c¶ A·vBW? K SO3 L K2O M CO N CO2 29. †Kvb avZzi jeY wkLv cix¶vq †e¸bx e‡Y©i

wkLv m„wó K‡i ? K cUvwkqvg L K¨vjwmqvg M g¨vM‡bwmqvg N A¨vjywbwgqvg 30. wb‡Pi †KvbwU w÷qvwiK Gwm‡Wi ms‡KZ? K C17H33COOH L C17H35COOH M C15H31COOH N C16H33COOH 31. H2SO4 Gi GKwU AYyi fi KZ? K 1.53 × 10–22g L 1.67 × 10–24g M 1.63 × 10–22g N 1.63 × 10–24g 32. ÒGKB ZvcgvÎv I GKB Pv‡c mgAvqZbwewkó

mKj M¨v‡m mgvb msL¨K cigvYy _v‡KÓ⎯ GB gZev wUi cÖ �veK †K?

K †MjymvK L ev‡R©wjqvm M A¨v‡fv‡M‡Wªv N cÖvDm 33. wb‡Pi †Kvb evK¨wU mwVK? K GKB ch©v‡q cvigvYweK msL¨v e„w×i

mv‡_ mv‡_ cigvYyi AvKvi n«vm cvq L GKB MÖ“‡c cvigvYweK msL¨v e„w×i mv‡_

mv‡_ cigvYyi AvKvi n«vm cvq M GKB ch©v‡q †gŠjmg�‡ni †hvRbx GKB nq N ch©vq mviYx‡Z bvB‡Uªv‡R‡bi Ae ’vb MÖ“c I-G 34. wewµqvi MwZi Dci wb‡Pi †KvbwUi cÖfve †bB? K ZvcgvÎv L cÖfveK M wewµq‡Ki NbgvÎv N cv‡Îi AvKvi 35. GK †gvj B‡jKUªb KZ Kzj¤ Avavb enb K‡i? K 95000 Kzj¤^ L 9650 Kzj¤^ M 6.02 × 1023 Kzj¤^ N 96500 Kzj¤^

DËigvjv

1 K 2 L 3 N 4 L 5 L 6 K 7 M 8 K 9 M 10 M 11 M 12 K 13 L 14 N 15 K 16 N 17 L 18 K 19 K 20 N 21 K 22 L 23 K 24 L 25 M 26 M 27 N 28 M 29 K 30 L 31 M 32 L 33 K 34 N 35 N


13. Kzwgj−v †evW©-2006 imvqb : ˆbe© w³K cÖkœ 1. dm‡dU †hŠMg�j‡Ki †hvRbx nÕjÑ K 2 L 3 M 4 N 1 2. wb‡æi †KvbwU µvBIjvBU ? K Ca3AlF L KAAlF M Na3AlF6 N Al3O3 3. †mvwWqvg †K¬vivBW I K¨vjwmqvg †K¬vivB‡Wi

wgkÖ‡Yi Mjbv¼ KZ ? K 801°C L 1465°C M 1000°C N 600°C 4. f‚-Z¡‡Ki IR‡bi kZKiv KZ fvM †jvnv

? K 4.15 MÖvg L 7.05 MÖvg M 8.00 MÖvg N 10.55 MÖvg 5. wb‡æi †KvbwU wj‡gvbvBU ? K Fe3O4 L Fe2O3.2H2O M Fe2O3 N PbS 6. cUvwkqv‡gi mKj †hŠM Aby¾¡j eyb‡mb

`x‡c cÖ‡ek Kiv‡j †Kvb is Gi wkLv †`Lv hvq ?

K jvj L njy M ‡e¸bx N meyR 7. K¨vjwmqvg avZzi eY© n‡”QÑ K †mvbvjx L iƒcvjx M meyRvf N njy vf 8. ÔBcmg jeYÕ Gi ms‡KZ †KvbwU ? K MgSO4.7H2O L CuSO4.7H2O M Na2SO4.7H2O N Na2SO4.10H2O 9. 40°C ZvcgvÎvq DËß KwjPz‡b †K¬vwib

M¨vm Pvjbv Ki‡j wK Drcbœ nq ? K CaCO3 L CaCl2 M Ca(OCl)Cl N NH4Cl 10. bvB‡Uªv‡Rb AYyi MVb n‡”QÑ K N – N L N = N M N ≡ N N †KvbwUB bq 11. evqygÊ‡j Aw·‡R‡bi cwigvY AvqZb

wnmv‡eÑ K 33% L 49% M 15% N 21% 12. wmwjK‡bi †hvRbx nÕjÑ K 2 L 3 M 4 N 6

13. †Kvb GwmWwU wbi“ K ? K H2SO4 L HNO3 M H3PO4 N HCl 14. †Kvb weÁvbx A‰Re †hŠM A v‡gvwbqvg

mvqv‡bU‡K DËß K‡i ˆRe †hŠM BDwiqv cÖ ‘Z K‡ib ?

K ev‡R©wjqvm L cÖvDm M wd«WwiL †fvjvi N A¨v‡fv‡M‡Wªv 15. A¨vj‡Kvnjmg�‡ni mvaviY ms‡KZ †KvbwU

? K Cn H2n L Cn H2n+1OH M Cn H2n+2 N Cn H2n+1 16. KZ evqyPvc‡K cÖgvY Pvc aiv nq ? K 1 atm L 4 atm M 6 atm N 10 atm 17. mvaviY je‡Yi ùzUbv¼ KZ ? K 1065°C L 1465°C M 1665°C N 1865°C 18. cvwbi GKwU AYyi fi n‡”QÑ K 2.99×10–23g L 3.95×10–22g M 1.67×10–24g N 32.67×10–24g 19. A¨v‡fv‡M‡Wªv msL¨vi gvb KZ ? K 3.05×10–24 L 6.02×10–23 M 8.45×10–22 N 10.02×10–22 20. Bw_wj‡bi MvVwbK ms‡KZ n‡”QÑ K H – C – H L H – O – O – H M H – C = C – H N H – C = C – H 21. ÔAYyÕ aviYvi cÖeZ©K n‡”QbÑ K Wvëb L A¨v‡fv‡M‡Wªv M ev‡R©wjqvm N wbDUb 22. bxjm †evi cigvYy MV‡bi DbœZ GKwU

g‡Wj cÖ vb K‡ibÑ K 1718 wLª÷v‡ã L 1819 wLª÷v‡ã M 1913 wLª÷v‡ã N 1625 wLª÷v‡ã 23. wbDUª‡bi Avmj fi †KvbwU ? K 1.675×10–24

MÖvg L 2.47×10–23

MÖvg M 3.67×10–22

MÖvg N 3.67×10–22

MÖvg 24. ‡K¬vwi‡bi GKwU cigvYy‡Z KZwU †cÖvUb

Av‡Q ? K 4 wU L 12 wU

M 14 wU N 17 wU 25. g¨vM‡bwmqv‡gi B‡jKUªbweb¨vm n‡”QÑ K 2, 8, 2 L 2, 8, 1 M 2, 8, 7 N 2, 8, 8 26. wg‡_b Gi Mjbv¼ KZ ? K 801°C L –183°C M 1465°C N –263°C 27. GK UzKiv avZzi g‡a¨ cigvYy ‡jv †h

AvKl©Y Øviv ci¯•‡ii mv‡_ Ave× _v‡K, Zv‡K ejv nqÑ

K ‡hvR¨Zv L AóK M avZe eÜb N Avqb 28. Av‡qvwW‡bi cvigvYweK fi KZ ? K 96 L 112 M 117 N 127 29. 1Þ = KZ ? K 10–8 cm L 10 8 cm M 10–20 cm N 1022 cm 30. NaOH + HCl = NaCl + H2O G

wewµqvwUÑ K ms‡k−lY L cvwb †hvRb M cÖkgb N mgvYyKiY 31. f¨vbvwWqvg †c›Uv·vBW Gi ms‡KZ wK ? K VO7 L V2 O5 M V3 O3 N V7 O6

32. †nevi-em c×wZ‡Z A¨v‡gvwbqv Drcv`‡b Pvc cÖ‡qvM Kiv nqÑ

K 500 – 550 atm L 400 – 450 atm M 300 – 350 atm N 200 – 250 atm 33. GK d¨viv‡W = KZ Kzj¤ ? K 86000C L 90000C M 96500C N 90500C 34. GK K¨vjwi = KZ Ryj? K 1.18 joule L 2.18 joule M 3.18 joule N 4.18 joule 35. 2 mole nvB‡Wªv‡Rb M¨vm 1 mole

Aw·‡Rb M¨v‡mi mv‡_ m¤•�Y©iƒ‡c wewµqv K‡i 2 mole Zij cvwb Drcbœ K‡i| G mgq Zvc wbM©Z nqÑ

K 572 kJ L 750 kJ M 880 kJ N 972 kJ

DËigvjv

1 L 2 M 3 N 4 K 5 L 6 M 7 L 8 K 9 M 10 L 11 N 12 M 13 K 14 M 15 L 16 K 17 L 18 K 19 L 20 N 21 L 22 M 23 K 24 N 25 K 26 L 27 M 28 N 29 K 30 M 31 L 32 N 33 M 34 N 35 K


14. Kzwgj−v †evW©-2005 imvqb : ˆbe© w³K cÖkœ 1. AvM©b cigvYyi B‡jKUªb web¨vm n‡”Q Ñ K 2, 8, 2 L 2, 8, 8 M 2, 8, 1 N 2, 8 2. ch©vq mviYx‡Z KqwU chv©q we`¨gvb? K 8 wU L 6 wU M 7 wU N 5 wU 3. †gvm&‡j KZ mv‡j cvigvYweK msL¨v

Avwe¯‹vi K‡ib? K 1613 mv‡j L 1713 mv‡j M 1813 mv‡j N 1913 mv‡j 4. ch©vq mviYx‡Z cUvwmqv‡gi Ae¯’vb

†Kvb& chv©‡q? K PZz_© ch©v‡q L Z…Zxq ch©v‡q M wØZxq ch©vq N cÂg ch©v‡q 5. †Kvb&wU BDwiqvi ms‡KZ? K NH2 – CO – NH2 L CH3CH2OH M CH3COOH N CH3COOCH2CH3 6. CuO + C = Cu + CO. G wewµqvwU Ñ K wØwe‡hvRb L RviY-weRviY M cÖkgb N we‡hvRb 7. N2(g) + 3H2 (g) HoooooI 2NH3(g). G

wewµqvq ∆H Gi gvb KZ? K 92 kJ L – 92 kJ M 102 kJ N – 102 kJ 8. GK †gvj B‡jKUªb KZ Kzj¤ Avavb enb

K‡i? K 76500 Kzj¤^ L 86500 Kzj¤^ M 96500 Kzj¤^ N 90500 Kzj¤^ 9. 5 g wmjfvi mwÂZ n‡Z †h cwigvY

Zwor cÖ‡qvRb 10 g mwÂZ n‡Z Zvi wØ¸Y cwigvY Zwor cÖ‡qvRb| Gi Øviv d¨viv‡WiÑ

K wØZxq m�Î cÖwZcvw`Z nq L cÖ_g m�Î cÖwZcvw`Z nq M cÖ_g I wØZxq m�Î cÖwZcvw`Z nq N †KvbwUB bq 10. 1 mole bvB‡Uªv‡Rb M¨vm 1 mole

Aw·‡Rb M¨v‡mi mv‡_ wewµqv K‡i 2 mole bvBwUªK A·vBW M¨vm Drcbœ K‡i| G mgq cvwicvk¦© n‡Z Zvc †kvwlZ nqÑ

K 280.6 kJ L 380.6 kJ M 480.6 kJ N 180.6 kJ 11. 1 g cvwbi ZvcgvÎv 1°C evov‡Z

cÖ‡qvRbxq Zvc kw³‡K ejv nqÑ

K GK Ryj L GK K¨vjwi M GK wK‡jvRyj N GK wK‡jvK¨vjwi 12. nvB‡Wªv‡Rb AYy‡Z `yÕwU nvB‡Wªv‡Rb

cigvYyi g‡a¨ eÜb kw³ n‡”QÑ K 235 kJ/mole L 335 kJ/mole M 435 kJ/mole N 353 kJ/mole 13. GKwU Zxeª GwmW‡K GKwU Zxeª ¶viK

Øviv cÖkg‡b Zvc cÖvq aª~eK Ges Gi gvb n‡”QÑ

K 8.73 kJ L –87.3 kJ M 77.3 kJ N – 57.3 kJ 14. me‡P‡q †ekx B‡jK‡UªvcwRwUf avZz

†Kvb&wU? K cUvwmqvg L A¨vjywgwbqvg M Avqib N Kcvi 15. wb‡æi †Kvb&wU e −y-wfwUªqj ? K CuSO4, 10 H2O L CuSO4, 5 H2O M Na2SO4, 10 H2O N ZnSO4, 5 H2O 16. K¨vjvgvBb Gi ms‡KZ †Kvb&wU? K ZnS L PbS M ZnCO3 N CaCO3

17. evZv‡m ev Aw·‡R‡b DËß Ae¯’vq †mvwWqvg †Kvb& e‡Y©i wkLvmn R¡‡j?

K ev`vgx e‡Y©i L jvj e‡Y©i M meyR e‡Y©i N †mvbvjx-njy

e‡Y©i 18. g¨vM‡bwmqv‡gi ùzUbvsK KZ? K 890°C L 1090°C M 1190°C N 1290°C 19. we −wPs cvDWv‡ii ms‡KZ †Kvb&wU? K Ca(OCl)Cl L CaSO4 M Na2SO4 N CaCl2. 8 NH3

20. evZv‡m kZKiv KZ fvM bvB‡Uªv‡Rb Av‡Q?

K 58% L 68% M 78% N 88% 21. †Kvb& M¨v‡mi eY© ev`vgx? K CO2 L CO M NO N NO2 22. A¨vjKvBj g�j‡Ki mvaviY ms‡KZ njÑ K CnH2n+1 L CnH2n+2 M CnH2n+1 OH N CnH2n

23. d¨vwU GwmWmg�‡ni Kvh©Kix g�jK n‡”QÑ K – C ≡ C – L > C = C <

M – COOH N – 24. wb‡æi †Kvb&wU †ú‡KW jvBg? K CaO L CaCO3 M Ca(HCO3)2 N Ca(OH)2 25. wb‡Pi †Kvb&wU mwVK mgxKiY? K Fe+H2O=Fe3O4+H2 L 3Fe+4H2O=Fe3O4+H2 M 3Fe+4H2O=Fe3O4+4H2 N 2Fe+H2O=Fe3O4+2H2 26. mvaviY je‡Yi MjbvsK KZ? K 801°C L 660°C M 901°C N 1000°C 27. AvaywbK imvq‡bi cÖwZôvZv wn‡m‡e

AwfwnZ Kiv nqÑ K †W‡gvwµUvm‡K L Rb WvjUb‡K M d¨viv‡W‡K N j¨vfqwm‡q‡K 28. cÖK…wZ‡Z cÖvß me‡P‡q fvix †gŠj n‡”Q- K Aw·‡Rb L bvB‡Uªv‡Rb M BD‡iwbqvg N Kve©b 29. GKwU nvB‡Wªv‡Rb cigvYyi fiÑ K 3.95×10–22g L 2.99×10–23 M 4.95×10–24g N 1.67×10–24g 30. Wvë‡bi cigvYyev` cÖKvwkZ nqÑ K 1803 mv‡j L 1703 mv‡j M 1603 mv‡j N 1903 mv‡j 31. KZ MÖvg Aw·‡R‡bi AvqZb‡K

Aw·‡R‡bi †gvjvi AvqZb ejv nq? K 16 g L 32 g M 18 g N 38 g 32. mvaviY mvjdv‡ii AYyi mwVK ms‡KZ

n‡”Q- K S L S2 M S8 N S3 33. †ebwR‡bi AvYweK ms‡KZ †Kvb&wU? K C3H4 L C2H4 M C6H6 N C6H12O6

34. KZ mv‡j P vWDBK wbDUªb Avwe®‹vi K‡ib? K 1690 mv‡j L 1780 mv‡j M 1811 mv‡j N 1932 mv‡j 35. GKwU cigvYyi e¨vm njÑ K 10–8 cm L 108 cm M 10–15 cm N 1015 cm

DËigvjv

1 L 2 M 3 N 4 K 5 K 6 L 7 L 8 M 9 L 10 N 11 L 12 M 13 N 14 K 15 L 16 M 17 N 18 L 19 K 20 M 21 N 22 K 23 M 24 N 25 M 26 K 27 L 28 M 29 N 30 K 31 L 32 M 33 M 34 N 35 K

C

O

OR


15. Kzwgj−v †evW©-2004 imvqb : ˆbe© w³K cÖkœ 1. †KvbwU AavZz ? K Avqib L wmjfvi M mvjdvi N Kcvi 2. wb‡æi †gŠjmg�‡ni g‡a¨ †KvbwU Kg mwµq

? K Mg L Au M Cu N Fe 3. Ò†Kvb M¨v‡mi AvYweK fi Zvi ev®•

Nb‡Z¡i wØ¸YÓ ⎯G Dw³wU Kvi ? K A¨v‡fv‡M‡Wªv L Rb WvjUb M ev‡R©wjqvm N d¨viv‡W 4. w ’ivYycvZ m�ÎwU †Kvb imvqbwe` cÖKvk K‡ib

? K cÖvDm L j¨vfqwm‡q M d¨viv‡W N Rb Wvëb 5. H2SO4 Gi MÖvg AvYweK fi KZ ? K 98.0 L 98.0 g M 86.0 N 86.0 g 6. cÖgvY ZvcgvÎv I Pvc ej‡Z eySvq⎯ K 25°C I GK evqexq Pvc L 0°C I 1 atm Pvc M 0°C I 1 cm cvi‡`i Pvc N 250°C I 1 cm cvi‡`i Pvc 7. M −y‡Kv‡Ri ¯’‚j ms‡KZ †KvbwU ? K CHO L CHO2 M CH2O N C2HO 8. A¨vwmwUwjb Gi MvVwbK ms‡KZ †KvbwU

? K H ⎯ C ≡ C ⎯ H L H ⎯ C ≡ N M H ⎯ O ⎯ O ⎯ H N O = C = O 9. †cÖvU‡bi Avmj fi n‡jv⎯ K 1.85 × 1023 MÖvg L 2.67 × 1022 MÖvg M 1.67 × 10−24 MÖvg N 2.67 × 10−24 MÖvg 10. wØZxq †k‡j m‡e©v”P B‡jKUªb aviY¶gZv

KZwU ? K 8wU L 16wU M 12wU N 18wU 11. †K¬vwib cigvYyi B‡jKUªb web¨vm n‡”Q⎯ K 2, 8, 1 L 2, 8 M 2, 8, 8 N 2, 8, 7 12. †mvwWqvg †K¬vivB‡Wi ùzUbv¼ KZ ? K 1465°C L 1265°C M 1600°C N 1700°C

13. wµcU‡bi †kl K¶c‡_ KqwU B‡jKUªb Av‡Q ?

K Pvi L `yB M AvU N Qq 14. cvi‡K¬vwiK Gwm‡Wi ms‡KZ n‡”Q⎯ K Cl2O7 L HClO4 M NaClO4 N CaClO4 15. cvigvYweK e¨vmva© 1Å = KZ ? K 10−13 cm L 1010 cm M 108 cm N 10−8 cm 16. µv‡qvjvB‡Ui ms‡KZ †KvbwU ? K CaCO3 L Al2O3,NH2O M Na2CO3 N Na3AlF6 17. NH4 CNO → NH2 ⎯ CO ⎯ NH2,

G wewµqvwUÑ K cvwb †hvRb L cÖkgb M mgvYyKiY N RviY-weRviY 18. †nevi-em c×wZ‡Z A¨v‡gvwbqv Drcv`‡b

Pvc cÖ‡qvM Kiv nqÑ K 500 − 550 atM L 300 − 350 atM M 200 − 250 atM N 400 − 450 atM 19. wewµqvi MwZi Dci cÖfve †bBÑ K ZvcgvÎv L wewµq‡Ki

NbgvÎv M cÖfveK N wewKqv cv‡Îi

AvKvi 20. f¨v‡bwWqvg †c‡›Uv·vBW †KvbwU ? K V2O5 L V3O6 M VO2 N V4O7 21. GK d¨viv‡W mgvb KZ Kzj¤ ? K 96500 Kzj¤^ L 76500 Kzj¤^ M 86500 Kzj¤^ N 66500 Kzj¤^ 22. ZvcgvÎv e„w×i d‡j wewµqvi MwZÑ K K‡g hvq L e„w× cvq M AcwiewZ©Z _v‡K N wecixZgyLx nq 23. GK K¨vjwi mgvb KZ Ryj ? K 4.18 Ryj L 8.20 Ryj M 10.18 Ryj N 12.0 Ryj 24. cÖgvY Pvc ej‡Z wK eySvq ? K 2.5 atm evqyPvc L 1 atm evqyPvc M 2 atm evqyPvc N 5 atm evqyPvc

25. GKwU Zxeª GwmW I Zxeª ¶vi‡Ki g‡a¨ cÖkgb wewµqvi Zvc n‡”QÑ

K − 57.3 kJ L 57.3 kJ M 100 kJ N − 757 kJ 26. K¨vjvgvBb Gi ms‡KZ †KvbwU ? K CuCO3 L CaCO3 M FeCO3 N ZnCO3 27. wb‡æi †Kvb avZzwU mwµqZvµ‡g mevi

Dc‡i ? K Kcvi L †jW M †mvwWqvg N A¨vjywgwbqvg 28. †Kvb avZzi jeY wkLv cix¶vq D¾¡j

†mvbvjx-njy eY© †`Lvq ? K †mvwWqvg L cUvwmqvg M K¨vjwmqvg N A¨vjywgwbqvg 29. mv`v wfwUªqj †KvbwU ? K CuSO4. 5H2O L ZnSO4. 7H2O M CuSO4. 10H2O N ZnSO4. 10H2O 30. M −yevi je‡Yi †Kjvm †KvbwU ? K CuSO4. 10H2O L CuSO4. 5H2O M Na2SO4. 10H2O N NH4SO4. 5H2O 31. †Kvb M¨vm‡K Pz‡bi cvwbi wfZi w`‡q

Pvjbv Ki‡j †Nvjv‡U nq ? K CO L NH3 M NO N CO2 32. †Kvb M¨vm ¶vixq ? K CO2 L CO M SO2 N NH3 33. nvB‡WªvKve©‡b wK wK _v‡K ? K Kve©b I bvB‡Uªv‡Rb L Kve©b I wmwjKb M Kve©b, nvB‡Wªv‡Rb I Aw·‡Rb N Kve©b I nvB‡Wªv‡Rb 34. A¨vj‡Kb Gi mvaviY AvYweK ms‡KZ

n‡”QÑ K CnH2n+1 COOH L CnH2n M CnH2n+1 OH N CnH2n+2 35. CH3 ⎯ CH2 ⎯ CH = CH2 †hŠMwUi

bvg wK ? K 1-weDwUb L 2-weD‡Ub M 3-weD‡Ub N weD‡Ub

DËigvjv 1 M 2 L 3 K 4 K 5 L 6 L 7 M 8 K 9 M 10 K 11 N 12 K 13 M 14 L 15 N 16 N 17 M 18 M 19 N 20 K 21 K 22 L 23 K 24 L 25 K 26 N 27 M 28 K 29 L 30 M 31 N 32 N 33 N 34 N 35 K


16. Kzwgj−v †evW©-2003 imvqb : ˆbe© w³K cÖkœ 1| †Kvb M¨vm ¶vixq ? K. CO2 L. CO M. NH3 N. NO2 2| †Kvb GwmWwU wbi“`K ? K. HNO3 L. H3PO4 M. HCl N. H2SO4 3| jvwds M¨v‡mi ms‡KZ †KvbwU ? K. N2O5 L. N2O3 M. N2O N. Cu2O 4| A¨v‡iv‡gwUK †hŠ‡Mi D`vniY n‡”Q ⎯ K. C3H8 L. C6H6 M. C2H6 N. C2H5OH

5| ‰Re Gwm‡Wi wµqvkxj g�jK n‡”Q ⎯ K. − COOH L. CH3 M. − OH N. C2H5 6| †Kvb †Kvb KwVb c`v_© DËß Ki‡j mivmwi

ev‡®• iƒcvš�wiZ nq| G cÖwµqv‡K ⎯ K. Mjb ejv nq L. ev®•xfeb ejv nq M. DaŸ©cvZb ejv nq N. ivmvqwbK cwieZ©b ejv nq 7| mvaviY je‡Yi Mjbv¼ KZ ? K. 1000° †mt L. 1065° †mt M. 801° †mt N. 1465° †mt 8| cvwbi GKwU AYyi fi n‡”Q ⎯ K. 18 MÖvg L. 18 M. 2.99 × 10-23 MÖvg N. 1.66 × 10-24 MÖvg 9| GKwU †hŠwMK c`v‡_©i ¶z ªZg Ask Zvi⎯ K. AYy L. cigvYy M. †cÖvUb N. B‡jKUªb 10| cÖK…wZ‡Z cÖvß me‡P‡q fvix †gŠj⎯ K. nvB‡Wªv‡Rb L. Aw·‡Rb M. Kve©b N. BD‡iwbqvg 11| A¨v‡fv‡M‡Wªv msL¨vi gvb n‡”Q ⎯ K. 6.02 × 1023 L. 1.66 × 10-24 M. 2 N. 22.4 12| GK MÖvg nxi‡K KqwU Kve©b cigvYy _v‡K ? K. 5.01 × 10-22 wU L. 5.02 × 1022 wU M. 5.02 × 1011 wU N. 5.02 × 1012 wU

13| †ebwR‡bi ’‚j ms‡KZ nj⎯ K. C2H2 L. C6H6 M. CH3 N. CH 14| mvjwdDwiK Gwm‡Wi AvYweK fi KZ ? K. 32.06 L. 98.00 M. 64.00 N. 18.00 15| wbDUª‡bi Avmj fi nj⎯ K. 1.675 × 10-24 MÖvg L. 1.675 × 1024 MÖvg M. 9.67 × 10-24 MÖvg N. 9.67 × 1024 MÖvg 16| wWD‡Uwiqvg I wUªwUqvg Kvi AvB‡mv‡Uvc ? K. bvB‡Uªv‡Rb L. nvB‡Wªv‡Rb M. Kve©b N. Aw·‡Rb 17| cigvYy‡Z kw³ �‡ii aviYv †`b †K ? K. iv`vi‡dvW© L. g¨v·I‡qj M. bxjm& †evi N. P¨vWDBK 18| wbw®Œq M vm ch©vq mviwYi †Kvb MÖ“‡c ’vb †c‡q‡Q ? K. 2q MÖ“‡c L. 7g MÖ“‡c M. 4_© MÖ“‡c N. k �b¨ MÖ“‡c 19| cvwbi AYyi AvK…wZ ⎯ K. †KŠwYK L. mij‰iwLK M. PZz �jKxq N. wcivwgW AvK…wZi 20| ch©vq mviwY‡Z bvB‡Uªv‡R‡bi Ae ’vb⎯ K. MÖ“c IA L. MÖ“c IIIA M. MÖ“c VA N. MÖ“c VIIA 21| ivmvqwbK wewµqvi †¶‡Î †KvbwU Aek¨B

cÖ‡qvRbxq ? K. Zvc L. Av‡jvK M. cÖfveK N. wewµqKmg�‡ni g‡a ms •k© 22| CuO + C = Cu + CO G wewµqvwU⎯ K. wØ-we‡hvRb L. RviY-weRviY M. cÖkgb N. we‡hvRb 23| H2 + Cl2 = 2HCl G wewµqvwU bq⎯ K. RviY-weRviY L. ms‡hvRb M. cÖkgb N. ms‡k −lY 24| cÖej Pv‡c †Kvb wewµqvwU msNwUZ nq ? K. Pb + S = PbS L. C2H2→2C + H2 M. 2H2O→2H2+O2 N. H2 + Cl2→2HCl

25| ZvcgvÎv evov‡j⎯ K. wewµqvi MwZ K‡g L. wewµqvi MwZ ev‡o M. wewµqvi MwZ AcwiewZ©Z _v‡K N. Ab¨ ai‡bi wewµqv nq 26| Zwor we‡k−lY m �Î †K Avwe®‹vi K‡ib ? K. †g‡Êwjd L. wbDUb M. A¨v‡fv‡M‡Wªv N. d¨viv‡W 27| we y r gvcvi h‡š�i bvg wK ? K. A¨vwgUvi L. †fvëvwgUvi M. j¨vK‡UvwgUvi N. w¯•M‡gvg¨v‡bvwgUvi 28| †KvbwU Zwor Awe‡k −l¨ c`v_© ? K. jeY L. GwmW M. M−y‡KvR N. ¶vi 29| Zvc ivmvqwbK mgxKi‡Y cÖgvY ZvcgvÎv n‡”Q ⎯ K. 0° †mt L. 100° M. 40° †mt N. 25° †mt 30| GKwU Zxeª GwmW I Zxeª ¶vi‡Ki g‡a¨ cÖkgb

wewµqvi Zvc n‡”Q ⎯ K. 57.3 wK‡jvRyj L. − 57.3 wK‡jvRyj M. 100 wK‡jvRyj N. − 75.7 wK‡jvRyj 31| 1 K¨vjwi mgvb KZ ? K. 4.14 Ryj L. 4.18 Ryj M. 4.48 Ryj N. 4.81 Ryj 32| A¨vjywgwbqvg A·vB‡Wi Mjbv¼ KZ ? K. 1050° †mt L. 2050° †mt M. 3050° †mt N. 4050° †mt 33| †ngvUvB‡Ui ms‡KZ nj⎯ K. Fe3O4

L. FeS2 M. Fe2O3 N. Fe2O3, 3H2O 34| Kvó Avqi‡b KZ fvM Kve©b _v‡K ? K. 0.4% L. 1⎯1.5% M. 0.10% N. 2⎯4.5% 35| wb‡Pi †Kvb avZzwU ¶v‡ii mv‡_ wewµqv K‡i bv ? K. Avqib L. wRsK M. A¨vjywgwbqvg N. †jW

DËigvjv 1 M 2 N 3 M 4 L 5 K 6 M 7 M 8 M 9 K 10 N 11 K 12 L 13 N 14 L 15 K 16 L 17 M 18 N

19 K 20 M 21 N 22 L 23 M 24 K 25 L 26 N 27 K 28 M 29 N 30 L 31 L 32 L 33 M 34 N 35 K


17. Kzwgj−v †evW©-2002 imvqb : ˆbe© w³K cÖkœ 1| weMwjZ Ae ’vq †mvwWqvg †K¬vivBW‡K Zwor

we‡k−lY Ki‡j K¨v‡_v‡W †KvbwU mwÂZ n‡e ? K. H2 M¨vm L. Cl2 M¨vm M. Na avZz N. NaOH ªeY 2| wb‡æi †KvbwU Zwor Awe‡k−l¨ ? K. wPwb L. mvaviY jeY M. Kcvi mvj‡dU N. mvjwdDwiK GwmW 3| Zvc ivmvqwbK wewµqvq cÖgvY ZvcgvÎv KZ ? K. 00 C L. 1000C M. 00K N. 250C 4| nvB‡Wªv‡Rb AYy‡Z yBwU nvB‡Wªv‡Rb cigvYyi

g‡a¨ eÜb kw³ KZ ? K. 435 kJ / mol L. 498 kJ/mol M. 464 kJ/mol N. 414 kJ / mol 5| GKwU Zxeª GwmW I GKwU Zxeª ¶vi‡Ki g‡a¨

cÖkgb Zvc n‡”Q ⎯ K. 57.3 kJ L. – 57.3 kJ M. – 573 kJ N. 753 kJ 6| ˆRe Gwm‡Wi Kvh©Kix g�jK †KvbwU ? K. ⎯ OH O || L. ⎯ C ⎯ H

O || M. ⎯C ⎯ O ⎯ R O || N. ⎯ C ⎯ O ⎯ H

7| †ngvUvBU †Kvb avZzi AvKwiK ? K. Zvgv L. `¯ �v M. †jvnv N. A¨vjywgwbqvg 8| wb‡æi †Kvb avZz‡K Zwor we‡k−l‡Yi mvnvh¨

wb®‹vkb Kiv nq ? K. wRsK L. A¨vjywgwbqvg M. †jW N. Kcvi 9| wb‡æi †Kvb avZz cvwbi m‡½ Zxeªfv‡e wewµqv

K‡i ? K. Al L. Zn M. K N. Cu 10| ¶vi avZzmg�‡ni Kve©‡b‡Ui mvaviY ms‡KZ

†KvbwU ? [ai ¶viavZz = M] K. MCO3 L. M2CO3 M. M(CO3)2 N. M2(CO3)3

11| †mvwWqvg jeY eyb‡mb wkLvq DËß Ki‡j wK i‡Oi wkLv ˆZwi n‡e ?

K. B‡Ui gZ jvj L. bxjvf meyR M. †e¸wb N. †mvbvjx njy` 12| †KvKv‡Kvjv †ccwm‡Kvjv cÖf…wZ †evZ‡ji gyL

Lyj‡j †Kvb M¨v‡mi ey ey ˆZwi nq ? K. CO2 L. NO2 M. SO2 N. H2 13| jvwds M¨vm †KvbwU ? K. NO L. N2O M. NO2 N. N2O4 14| d¨vwU Gwm‡Wi mvaviY ms‡KZ †KvbwU ? K. RCOOH L. R ⎯ OH M. RCHO N. RCHOOR 15| wb‡æi †KvbwU Bw_‡bi ms‡KZ ? K. CH3 L. H3C ⎯ CH3 M. C2H2 N. C2H4 16| wPwbi mieZ wb‡æi †KvbwUi Aš�M©Z ? K. AmgmË¡ wgkÖY L. mgmË¡ wgkÖY M. †gŠwjK c`v_© N. †hŠwMK c`v_© 17| wb‡æi †KvbwU ˆfŠZ cwieZ©b ? K. nvB‡Wªv‡Rb I Aw·‡R‡bi mn‡hv‡M cvwb ˆZwi L. †gvgevwZi `nb M. cvwbi Zwor we‡k −lY N. Rjxq ev®•‡K VvÊv K‡i cvwb‡Z cwiYZ Kiv 18| Aw·‡R‡bi GK †gvj n‡”Q ⎯ K. 16 g L. 16 M. 32 g N. 32 19| e ‘i ag© aviY K‡i GiKg ¶z ªZg KwYKv

†KvbwU ? K. AYy L. cigvYy M. †hŠM N. †gŠj 20| A¨v‡fvM¨v‡Wªvi msL¨v ej‡Z wK eySvq ? K. 1 g e¯‘‡Z AYyi msL¨v L. 1 g e¯‘‡Z cigvYyi msL¨v M. 1 mole e¯‘‡Z AYyi msL¨v N. 1 litre e¯‘‡Z AYyi msL¨v 21| cÖgvY ZvcgvÎv I Pv‡c A¨v‡gvwbqv M¨v‡mi NbZ¡

KZ ? K. 14 L. 8.5 M. 9 N. 17 22| †ebwR‡bi ’‚j ms‡KZ †KvbwU ? K. CH L. C2H2 M. C6H6 N. C2H6 23| †d‡iv‡mv‡dwiK A·vB‡Wi ms‡KZ †KvbwU ? K. FeO L. Fe2O3

M. Fe4O3 N. Fe3O4 24| Zn + CuSO4 = ZnSO4 + Cu

wewµqvwU wb‡æi †Kvb ai‡bi ? K. ms‡k −lY L. we‡k −lY M. RviY - weRviY N. wØ - we‡hvRb 25| †evib bvBUªvBW (BN) †hŠ‡M †evi‡bi †hvR¨Zv

KZ ? K. 4 L. 3 M. 2 N. 1 26| B‡jKUª‡bi fi wb‡æi †KvbwU ? K. 1.67 × 10 Ñ24 MÖvg L. 1.67 × 1024 M. 9.11 × 1028 N. 9.11 × 10Ñ 28 MÖ vg 27| +Na23

11 Avq‡b KqwU B‡jKUªb Av‡Q ? K. 10 wU L. 11 wU M. 12 wU N. 23 wU 28| Z Øviv wb‡æi †KvbwU cÖKvk cvq ? K. RviY msL¨v L. fi msL¨v M. A¨v‡fvM¨v‡Wªv msL¨v N. cvigvYweK msL¨v 29| wµcU‡bi B‡jKUªb web¨vm †KvbwU ? K. 2) 8) 18) 8 L. 2 )8)8 M. 2)8 N. 2 )8)8)8 30| wg‡_b AYyi AvK…wZ †Kgb ? K. ˆiwLK L. †KŠwYK M. PZz �jKxq N. wcivwgWxq 31| AavZzi A·vBW mvaviYZ †Kvb ag©xq ? K. ¶viag©x L. Aèag©x M. cÖkg N. Dfag©x 32| ch©vq mviwY‡Z bvB‡Uªv‡R‡bi Ae ’vb †Kvb

MÖ“‡c ? K. MÖ“c V L. MÖ“c VI M. MÖ“c VII N. MÖ“c III 33| ¶vi avZzmg�‡ni †hvR¨Zv KZ ? K. 3 L. 2 M. 1 N. 0 34| K…wÎg wN ev WvjWv ˆZwi‡Z †Kvb cÖfveK e eüZ

nq ? K. c −vwUbvg P‚Y© L. wb‡Kj P‚Y© M. Avqib P‚Y© N. V2O5 35| †nevi em c×wZ‡Z bvB‡Uªv‡Rb I nvB‡Wªv‡Rb

M¨vm nÕ†Z A¨v‡gvwbqv ms‡k−lYKv‡j Pvc e„w× Ki‡j wK NU‡e ?

K. A¨v‡gvwbqvi Drcv`b n«vm cv‡e L. wewµqvwU †_‡g hv‡e M. wewµqvwU DfgyLx N. A¨v‡gvwbqvi Drcv`b e„w× cv‡e|

DËigvjv 1 M 2 K 3 N 4 K 5 L 6 N 7 M 8 L 9 M 10 L 11 N 12 K 13 L 14 K 15 N 16 L 17 N 18 M

19 K 20 M 21 L 22 K 23 N 24 M 25 L 26 N 27 K 28 N 29 K 30 M 31 L 32 K 33 M 34 L 35 N


18. Kzwgj−v †evW©-2001 imvqb : ˆbe© w³K cÖkœ 1| wb‡æi †Kvb c`v_©wU KLbI avZz Ges KLbI

AavZzi b¨vq AvPiY K‡i? K. wmjfvi L. gviKvix M. wmwjKb N. Kve©b 2| nxi‡Ki Av‡cw¶K ¸i“Z¡ KZ ? K. 3.5 L. 2.3 M. 4.5 N. 3.6 3| g�j e ‘i ¸Yvejx aviY K‡i GiKg ¶z ªZg

KwYKvi bvg wK ? K. †gŠj L. AYy M. cigvYy N. KYv 4| me©cÖ_g wecixZ AbycvZ m�Î †Kvb imvqbwe

cÖKvk K‡ib? K. A¨vwi÷Uj L. Rb Wvj&Ub M. †W‡gvwµUvm N. wiKUvi 5| cÖgvY ZvcgvÎv I Pvc ej‡Z wK eySvq? K. 0° †mjwmqvm I 1 GU‡gvm‡dqvi Pvc L. 0° †mjwmqvm I 1 evqexq Pvc M. 0° †mjwmqvm I 1 †mw›UwgUvi cvi‡ì Pvc N. 250° †mjwmqvm I 1 †mw›UwgUvi cvi‡ì Pvc 6| GK MÖvg nxi‡K KqwU Kve©b cigvYy _v‡K ? K. 5.02×1022wU L. 5.0×10-22wU M. 5.02×1011wU N. 5.02×1012wU 7| wb‡Pi †Kvb cÖZxKwU mwVK ? K. wmjfv‡ii cÖZxK Hg L. †mvwWqv‡gi cÖZxK Na M. cUvwmqv‡gi cÖZxK Pa N. †mvbvi cÖZxK g 8| M−y‡Kv‡Ri AvYweK ms‡KZ †KvbwU ? K. C6H12O6 L. C6H22O6

M. C6H11O5 N. C6H13O6 9| wb‡Pi †KvbwU †gŠwjK KwYKv bq ? K. †cÖvUb L. nvB‡Wªv‡Rb cigvYy M. wbDUªb N. B‡jKUªb 10| PZz_© †k‡j m‡e©v”P KZwU B‡jKUªb _vK‡Z

cv‡i? K. 20wU L. 18wU M. 32wU N. 44wU 11| mvjwdDwiK Gwm‡Wi GKwU AYy‡Z †gvU KqwU

cigvYy Av‡Q? K. 5wU L. 6wU M. 7wU N. 8wU

12| ch©vq mviwYi mwZ¨Kvi wfwË wK ? K. cvigvYweK msL¨v L. cvigvYweK fi M. B‡jKUªb web¨vm N. Zzj¨vsK 13| †Kv_vq AwaKvsk Aš�tAe ’vš�i †gŠj cvIqv

hvq bv ? K. †hŠwMK c`v‡_© L. ivmvqwbK `ª‡e¨ M. Zij c`v‡_© N. cÖK…wZ‡Z 14| CuO + C = Cu + CO GB wewµqvwU‡K

wK ejv nq ? K. wØ-we‡hvRb L. we‡hvRb M. RviY-weRviY N. cÖkgb 15| †KvbwU BDwiqvi ms‡KZ ? K. NH2−CO−CH L. NH2−CO−NH2 M. NH2−CO2−NH2 N. NH−CO−CH 16| A¨v‡gvwbqv cÖ ‘wZ‡Z AZ¨vbyK‚j ZvcgvÎv KZ ?

K. 400-500° †mt L. 300-400° †mt M. 500-600° †mt N. 600-700° †mt 17| †Kvb c×wZ e envi K‡i Kcvi weï×KiY Kiv nq ? K. †nevi c×wZ L. Zwor we‡k−lY c×wZ M. d«vk c×wZ N. Zwor ms‡hvRb c×wZ 18| GK K¨vjwi = KZ Ryj? K. 4.18 Ryj L. 4.15 Ryj M. 4.17 Ryj N. 4.16 Ryj 19| wb‡Pi †KvbwU Avqi‡bi AvKwiK bq ? K. g¨vM‡bUvBU L. n¨vgvUvBU M. wj‡gvbvBU N. A¨vjywgbv 20| wb‡æi †Kvb avZzwU Zwor we‡k−l†Yi mvnv‡h wb®‹vkb Kiv

nq bv ? K. †jW L. K¨vjwmqvg M. cUvwmqvg N. †mvwWqvg 21| wb‡Pi †KvbwU Kcv‡ii cÖavb AvKwiK ? K. Kcvi M − vÝ- Cu2S L. wKDcÖvBU-Cu2O M. Kcvi cvBivBU- CuFeS2 N. g¨vj‡KvbvBU- CuO 22| wb‡æi †Kvb avZzwUi weRviY ¶gZv me‡P‡q

†ewk ? K. †jW L. Avqib M. Kcvi N. wRsK

23| wb‡Pi †Kvb †gŠj wewµqvq Ask †bq bv ? K. Na L. Pb M. He N. Cu 24| †mvwWqvg A¨vjywgwb‡Ui ms‡KZ †KvbwU ? K. NaAlO L. Na2AlO M. NaAlO2 N. Na2AlO2 25| †KvbwU mv`v wfwUªq‡ji ms‡KZ ? K. ZnSO4.3H2O L. ZnSO4.5H2O M. ZnSO4.7H2O N. ZnSO4.H2O 26| †Kvb AavZzi Aš�Z GKwU iƒc‡f` we y r cwievnx? K. dmdivm L. Aw·‡Rb M. Kve©b N. mvjdvi 27| KvP n‡”QÑ K. †mvwWqvg wmwj‡KU L. wewfbœ wmwj‡K‡Ui wgkÖY M. †jW wmwj‡KU N. wmwjKv 28| †Kvb Avqb Øviv wis †U÷ Kiv nq ? K. mvj‡dU L. †K¬vivBW M. bvB‡UªU N. Kve©‡bU 29| †KvbwU Dfagx© A·vBW? K. NaO L. MgO M. ZnO N. K2O 30| Gwm‡Wi mwnZ †Kvb jeY †hvM Kwi‡j cuPv

wW‡gi MÜhy³ M¨vm evwni nq ? K. †K¬vivBW L. mvj‡dU M. bvB‡UªU N. mvjdvBW 31| G÷v‡ii Kvh©Kix g�jK †KvbwU ? K. −COR L. −COOR M. −ROOC N. −ROC 32| Kvwji `vM †gvQv hvq wb‡Pi †KvbwU Øviv? K. †K¬vwib L. †eªvwgb M. †d¬vwib N. Av‡qvwWb 33| wb‡æi †KvbwU DØvqx c`v_©? K. Zuy‡Z L. evwj M. B_vi N. jeY 34| wb‡æi †KvbwU RviK c`v_© bq ? K. Aw·‡Rb L. I‡Rvb M. A¨v‡Kvqv wiwRqv N. A¨v‡gvwbqv 35| djg�‡ji cuPb †iv‡a eëüZ nq †KvbwU ? K. HCl L. SO3

M. H2SO4 N. SO2

DËigvjv 1 M 2 K 3 L 4 N 5 K 6 K 7 L 8 K 9 L 10 M 11 M 12 M 13 N 14 M 15 L 16 K 17 L 18 K

19 N 20 K 21 M 22 N 23 M 24 M 25 M 26 M 27 L 28 M 29 M 30 N 31 L 32 K 33 M 34 N 35 N


19. ivRkvnx †evW©-2009 imvqb : ˆbe© w³K cÖkœ mgq-35 wgwbU; c �Y©gvb -35


1. mvaviYZ Zi‡ji ùzUbvsK gvcv nq ⎯ K 1 atm Pv‡c L 100 atm Pv‡c M 80 - 350 atm Pv‡c N 200 - 250 attm Pv‡c 2. wb‡gœi †Kvb&wU A¨‡fv‡M‡Wªvi m�‡Îi wØZxq

Abywm×vš� ? K GwU Wvë‡bi cigvYyev` Z‡Ë¡i cÖavb

Î“wUmg�n ` �i K‡i L GwU Wvë‡bi cigvYyev Ges †Mjym v‡Ki

M vm AvqZb m�‡Îi g‡a mvgÄm weavb K‡i M GwU me©cÖ_g AYyaviYvi cÖeZ©b K‡i Ges AYy

I cigvYyi g‡a¨ cv_©K¨ wb‡ ©k K‡i N †h-†Kvb M¨v‡mi AvYweK fi Zvi

ev®•Nb‡Z¡i wØ¸Y 3. w¯’ivbycvZ m�‡Îi mv‡_ †Kvb&wU m¤•wK©Z ? K Drm I cÖ ‘wZ L mij AbycvZ M DçwYZK N AvqZb 4. GKwU M¨v‡mi ev®•NbZ¡ 15.87| AvaywbK

†¯‹‡j Gi AvYweK fi nj⎯ K 8 L 16 M 30 N 32 5. wb‡gœi †Kvb&wUi mvnv‡h¨ †Kvb M¨v‡mi AvYweK

fi †ei Kiv m¤¢e n‡q‡Q ? K Wvë‡bi cigvYyev` L A¨v‡fv‡M‡Wªvi m�Î M w¯’ivbycvZ m�Î N M¨vm AvqZb m�Î 6. †Kvb&wUi mvnv‡h¨ wecixZ AbycvZ m�Î e¨vL¨v

Kiv hvq ? K H2O, H2O2 L CO, CO2 M CH4, H2O, CO2 N CH4, CO, CO2 7. †Kvb&wU Wvë‡bi cigvYyev‡ì ¯xKvh© bq ? K wfbœ wfbœ cigvYyi ag© I fi wewfbœ L cigvY�i aŸsm ev m„wó bvB M cigvYy wefvR N GKB c`v‡_©i mKj cigvY �i ag© I fi Awfbœ 8. †Kvb&wU mwVK bq ? K Kve©Y WvB A·vB‡Wi GK †gvj mgvb 44g. L †Kvb gva¨‡g AwZ¶z`ª KYvi BZ¯�Z

ågY‡K eªvDbxq MwZ ejv nq M †gŠjmg�‡ni cvigvYweK ms‡hvM †Kvb

wbqg ev m�Î †g‡b P‡j bv N M¨vm AvqZb m�ÎwU ïaygvÎ M¨vmxq

Ae¯’vi †¶‡Î cÖ‡hvR¨ 9. †Kvb& †hŠ‡Mi ’�j ms‡KZ I AvYweK ms‡KZ GKB? K cvwb L †ebwRb M nvB‡Wªv‡Rb cvi·vBW N M −y‡KvR 10. wb‡gœi †Kvb&wU Avqib (III) †K¬vivB‡W

Avqi‡bi myß †hvRbx ? K 0 L 1 M 2 N 3 11. dmdivm AYyi cÖK…Z ms‡KZ †Kvb&wU ?

K P L P3 M P4 N P8 12. nvB‡Wªv‡R‡bi AvB‡mv‡Uvc qwU ? K 1 wU L 2 wU M 3 wU N 4 wU 13. †gŠ‡ji wbDwK¬qb msL¨v nj⎯ K †cÖvU‡bi msL¨v L B‡jKUª‡bi msL¨v M †cÖvUb I B‡jKUª‡bi msL¨vi mgwó N †cÖvUb I wbDUª‡bi msL¨vi mgwó 14. mg‡hvRx †hŠ‡Mi AYymg�n G‡K A‡bï mv‡_ †h

ye©j kw³ Øviv AvK…ó _v‡K Zv nj⎯ K Avš�t AvYweK kw³ L Zwor Pz¤^Kxq kw³ M wbDwK¬q kw³ N f vbWvi Iqvjm kw³ 15. A¨v‡gvwbqv AYyi AvK…wZ nj⎯ K mij îwLK L V AvK…wZi M wcivwgWxq N PZz¯�jKxq 16. †Kvb&wU Ae¯’vš�i †gŠj ? K K L Ca M Fe N Al 17. †Kvb& †gŠ‡ji B‡jKUªb web¨vm 2, 8, 8, 1;

ch©vq mviYx‡Z Gi Ae¯’vb nj⎯ K 1g ch©v‡q L 3q ch©v‡q M 4_© ch©v‡q N 5g ch©v‡q 18. wb‡gœi †KvbwU mgvbyKiY wewµqv ? K CaO + CO2 = CaCO3 L Zn + H2SO4 = ZnSO4 + H2 M AgNO3 + NaCl = AgCl + NaNO3 N NH4CNO → NH2 - CO - NH2 19. C2H2 ⎯→ 2C + H2; GB wewµqvwU

msNU‡bi Rb¨ †Kvb&wU cÖ‡qvRb ? K Av‡jvK L kã M Zvc N Pvc 20. SO3 Gi wk‡ívrcv ‡b AZ vbyKzj ZvcgvÎv nj⎯ K 100°C L 200 - 300°C M 300 - 400°C N 450 - 550°C 21. A¨v‡gvwbqvi wk‡ívrcv`‡b †Kvb&wU cÖfveK

D‡ËRK wn‡m‡e eëüZ nq ? K Pt-P�Y© L v2O5 M Al2O3 I KOH Gi wgkªY N Fe-P�Y© 22. wb‡gœi †Kvb&wU †mvwWqvg †K¬vivBW ªe‡Yi

Zwor we‡k−l‡Yi mgq abvZ¥K ZworØv‡i Rgv nq ?

K †mvwWqvg Avqb L †K¬vwib M¨vm M †mvwWqvg avZz N nvB‡Wªv‡Rb M¨vm 23. †Kvb&wU Zwor we‡k−l¨ bq ? K Kcvi mvj‡dU L mvaviY jeY M GwmW wgkªZ cvwb N wPwb 24. Zv‡cvrcv x wewµqvi †¶‡Î wb‡gœi †Kvb&wU mZ ? K eÜb fv½vi Rb kw³ > eÜb m„wó‡Z

kw³

L eÜb fv½vi Rb kw³ < eÜb m„wó‡Z kw³

M eÜb fv½vi Rb kw³ = eÜb m„wó‡Z kw³

N eÜb fv½vi Rb kw³ + eÜb m„wó‡Z kw³ = 0

25. GKwU Zxeª GwmW Ges GKwU Zxeª ¶vi‡Ki Øviv cÖkgb Zvc †gvUv‡gvwU ⎯

K 57.3 kJ L 67.3 kJ M 92.2 kJ N 100 kJ 26. †Kvb& avZzwU Zwor we‡k−l‡Yi mvnv‡h¨ wb®‹vkb

Kiv nq ? K Pb L Cu M Zn N Al 27. A¨vjywgwbqvg A·vBW mn‡R Mjv‡bvi Rb¨

Gi mv‡_ †Kvb&wU wgkv‡bv nq ? K AlCl3 L Al2(BO4)3 M Na3AIF6 N CaCl2

28. †jvnv wb®‹vk‡bi mgq weMjK wn‡m‡e †Kvb&wU eëüZ nq ?

K Pzbvcv_i L K¨vjwmqvg wmwj‡KU M K¨vjwmqvg dm‡dU N †KvK 29. e −y wfwUªIj Gi ms‡M hy³ cvwbi me©‡kl AYywU

†Kvb& DòZvq ` �ixf�Z nq ? K 100°C L 150°C M 200°C N 250°C 30. †Kvb& †hŠMwU Avqib (III) je‡Yi `ªe‡Y

i‡³i gZ jvj eY© m„wó K‡i ? K cUvwkqvg mvqv‡bU L A¨v‡gvwbqvg _v‡qvmvqv‡bU M †mvwWqvg _v‡qvmvqv‡bU N cUvwkqvg †n·vmvqv‡bv‡d‡iU 31. †Kvb&wU mv`v wfwUªIj ? K CuSO4.5H2O L FeSO4.7H2O M ZnSO4.7H2O N CaSO4.2H2O 32. me©cÖ_g cix¶vMv‡i ˆZix ˆRe‡hŠM †Kvb&wU ? K wg‡_b L BDwiqv M B_vbj N †ebwRb 33. †Kvb&wU A¨v‡iv‡gwUK †hŠM ? K mvevb L b¨vc_¨vwjb M B_vbj N mvB‡K¬v‡n‡·b 34. †Kvb&wUi mvnv‡h¨ †Kvb †hŠ‡M wØeÜ‡bi

Dcw¯’wZ mbv³ Kiv hvq ? K †eªvwgb L †K¬vwib M Av‡qvwWb N †d¬vwib 35. Fe+3 Avqbwewkó `ªe‡Y jNy A¨v‡gvwbqv †hvM

Ki‡j †Kvb& is Gi Aat‡¶c ˆZix nq ? K bxjvf meyR L bxjvf mv`v M jvj‡P ev`vgx N g›`v meyR

DËigvjv 1 K 2 N 3 K 4 N 5 L 6 M 7 M 8 M 9 K 10 K 11 M 12 M 13 N 14 N 15 M 16 M 17 M 18 N 19 L 20 N 21 M 22 L 23 N 24 L 25 K 26 N 27 M 28 K 29 N 30 L 31 M 32 L 33 L 34 K 35 M

†evW© cix¶vi cªkœ I DËi : ˆbe© w³K ivRkvnx

†evW©


20. ivRkvnx †evW©-2008 imvqb : ˆbe© w³K cÖkœ 1. wPwbi kieZ n‡”Q ⎯ K AmgmË¡ wgkªY L mgmË¡ wgkªY

M †gŠwjK c`v_© N †hŠwMK c`v_© 2. Zirconium bvgwU †Kvb fvlv †_‡K

†bqv n‡q‡Q ? K j¨vwUb L Bs‡iwR

M divwm N Aviex 3. GKwU cigvYyi e¨vm ⎯ K 10–8cm L 10–10cm M 10–13cm N 10–15cm 4. cvwbi AYy‡Z KqwU gy³‡Rvov B‡jKUªb

Av‡Q ? K 1 wU L 2 wU M 3 wU N 4 wU 5. nvB‡Wªv‡R‡bi GKwU cigvYyi fi ⎯ K 1.66 × 10–22g L 1.67 × 10–24g

M 2.99 × 10–23g N 3.95 × 10–22g 6. GKwU †hŠ‡M 32.4% Na, 22.5% S Ges

45.1% O Av‡Q| Gi ’�j ms‡KZ n‡”Q ⎯

K Na2SO4 L Na2SO3 M Na2SO2 N NaSO3 7. cÖej Pv‡c †Kvb wewµqvwU msMwVZ nq ? K Pb + S → PbS L C2H2 → 2C + H2 M 2H2O → 2H2 + O3 N H2 + O2 → 2H2 O 8. mwµqZv µ‡g †Kvb avZzwUi Ae¯’vb

nvB‡Wªv‡R‡bi wb‡P? K †mvwWqvg L wRsK

M Kcvi N †jW 9. mKj avZzi †Kvb jeY cvwb‡Z `ªeYxq ? K Kve©‡bU L mvj‡dU M dm‡dU N bvB‡UªU 10. mywbw ©ó cwigvY Zij c`v_© gvcvi Rb

†KvbwU eëüZ nq ? K ey ‡iU L wc‡cU M †gRvwis wmwjÛvi N gU©vi 11. †Kvb wewµqKwU A¨vwmwUK Gwm‡Wi

wg_vBj MÖ“c‡K AvµgY K‡i ? K PCl3 L PCl5 M Cl2 N NaI 12. n¨v‡jv‡Rbmg�‡ni wµqvkxjZvi µg n‡”Q

⎯ K †K¬vwib > †eªvwgb > †d¬vwib > Av‡qvwWb L †eªvwgb > †d¬vwib > †K¬vwib > Av‡qvwWb M Av‡qvwWb > †K¬vwib > †d¬vwib > †eªvwgb N †d¬vwib > †K¬vwib > †eªvwgb >

Av‡qvwWb

13. mg‡hvRx †hŠM †KvbwU ? K PCl3 L CaCl2 M MgCl2 N NaCl 14. †KvbwU †gŠwjK KwYKv bq ? K wbDUªb L †cÖvUb

M nvB‡Wªv‡Rb AYy N B‡jKUªb 15. cÖgvY ZvcgvÎv I P‡c †K¬vwi‡bi NbZ¡

⎯ K 2.5g/l L 1.43g/l M 4.5g/l N 3.17g/l 16. Bu yi gvivi wel ˆZwi‡Z †KvbwU eëüZ nq

? K bvB‡Uªv‡Rb L dmdivm M mvjdvi N Kve©b 17. †n‡·‡bi ù�Ubv¼ n‡”Q ⎯ K –95°C L 36°C M 69°C N –69°C 18. ¶viavZz wfbœ mKj avZzi †Kvb jeY

cvwb‡Z A ªe¨bxq ? K Kve©‡bU L bvB‡UªU M mvj‡dU N †K¬vivBW 19. wb‡gœi †Kvb avZz wkLv cix¶vq †Kvb eY©

†`Lvq bv ? K †mvwWqvg L g¨vM‡bwmqvg M cUvwmqvg N Kcvi 20. wb‡gœi †Kvb avZz‡K Kve©b weRviY

cÖwµqvq wb®‹vkb Kiv nq ? K A¨vjywgwbqvg L g¨vM‡bwmqvg M wRsK N †mvwWqvg 21. †mvwWqvg wRs‡K‡Ui mwVK ms‡KZ n‡”Q ⎯ K Na2Zn(OH)4 L NaZnO2 M Na2ZnO3 N Na2ZnO4

22. GK d¨viv‡W mgvb ⎯ K 9600 Kzj¤^ L 96500 Kzj¤^ M 96.5 × 109 Kzj¤ N 96 × 1010 Kzj¤ 23. †nevi em c×wZ‡Z bvB‡Uªv‡Rb I nvB‡Wªv‡Rb

M¨vm n‡Z A¨v‡gvwbqv ms‡k−lbKv‡j Pvc e„w× Ki‡j wK NU‡e ?

K A¨v‡gvwbqvi Drcv`b n«vm cv‡e L wewµqvwU †_‡g hv‡e M wewµqvwU DfgyLx n‡e N A¨v‡gvwbqvi Drcv`b e„w× cv‡e 24. Zn + Cu++ → Zn+++ Cu wewµqvwU‡Z

†KvbwU weRvi‡Ki KvR K‡i ? K Cu++ L Zn++

M Zn N Cu

25. dmdiv‡mi Ae ’vb ch©vq mviYxi V bs MÖ“‡c, KviY ⎯

K dmdiv‡mi cigvYy‡Z B‡jKUªbmg�n cuvPwU ¯�‡i _v‡K

L dmdiv‡mi †hvRbx cuvP M dmdiv‡mi cigvYy‡Z me©‡kl ¯�‡i

cuvPwU B‡jKUªb Av‡Q N dmdiv‡mi cvigvwYK msL¨v 15 ev

5 Øviv wefvR 26. †Kv‡mj KZ mv‡j AvqwbK eÜ‡bi aviYv † b

? K 1915 L 1916 M 1917 N 1918 27. cvi‡K¬vwiK Gwm‡W Aw·‡R‡bi kZKiv

mshywZ KZ ? K 0.995% L 35..3% M 64.7% N 32% 28. Ca+2 G B‡jKUªb KqwU ? K 11 wU L 12 wU M 18 wU N 20 wU 29. †evib bvBUªvB‡Wi ms‡KZ n‡”Q ⎯ K BN L BN2 M B2N N BON 30. cÖgvY ZvcgvÎv I Pvc ej‡Z †evSvq ⎯ K 0°C I 1 cm cvi‡ì Pvc L 0°C I GK evqexq Pvc M 25°C I GK evqexq Pvc N 250°C I 1cm cvi‡ì Pvc 31. Zvc ivmvqwbK mgxKi‡Y cÖgvY ZvcgvÎv

n‡”Q ⎯ K 0°C L 100°C M 25°C N 30°C 32. †Kvb wewµqvwU mwVK ? K Al + HCl → A1HCl L 2Al + 2HCl → AlCl3 + H2O M Al + HCl → Al3Cl + H2 N 2Al + 6HCl → 2AlCl3 + 3H2 33. CH3 – CH2 – CH2 – CH = CH2

†hŠMwUi bvg wK ? K 1- †cbwUb L 2- †cbwUb M †cbwUb N 4– †cbwUb 34. Kv÷ Avqi‡b g v½vwb‡Ri cwigvY n‡”Q

⎯ K 0.4% L 4% M 4.5% N 5% 35. G÷v‡ii Kvh©Kix g�jK n‡”Q ⎯ K –COOH L –CH2OH M –CH3OH N – COOR

DËigvjv

1 L 2 N 3 K 4 L 5 L 6 K 7 K 8 M 9 N 10 M 11 M 12 N 13 K 14 M 15 N 16 L 17 M 18 K 19 L 20 M 21 N 22 L 23 N 24 M 25 M 26 L 27 M 28 M 29 K 30 L 31 M 32 N 33 K 34 K N


21. ivRkvnx †evW©-2007 imvqb : ˆbe© w³K cÖkœ 1. †Kvb †Kvb KwVb c v_©‡K DËß Ki‡j mivmwi

ev‡®• iƒcvš�wiZ nq| G cÖwµqv‡K ejv nq ⎯ K Mjb L EaŸ©cvZb M ev®•xfeb N ivmvqwbK

cwieZ©b 2. ivmvqwbK ms‡hvM m�Îmg�‡ni GKwU †gŠjmg�‡ni

f‡ii mv‡_ mivmwi hy³ bq †KvbwU? K M¨vm AvqZb m�Î L w¯’ivbycvZ m�Î M ¸YvbycvZ m�Î N wecixZ AbycvZ m�Î 3. ch©vq mviYxi VIII MÖ“‡c KqwU †gŠj Av‡Q? K 7 L 8 M 5 N 6 4. wb‡Pi †KvbwU wØ‡hvRx †gŠj? K Aw·‡Rb L nvB‡Wªv‡Rb M †K¬vwib N †mvwWqvg 5. †Kvb je‡Y GwmW †hvM Ki‡j cPv wW‡gi MÜhy³

M vm †ei nq? K mvj‡dU L †K¬vivBW M bvB‡UªU N mvjdvBW 6. divmx imvqbwe` cÖvDm w ’ivbycvZ m�ÎwU cÖKvk

K‡ib KZ mv‡j? K 1799 L 1899 M 1774 N 1792 7. GKwU e �y mvaviY ZvcgvÎvq Zij c v_©, Z‡e

we y r cwievnx bq| G‡Z †Kvb ai‡bi eÜb we ¨gvb?

K AvqwbK L avZe M mg‡hvRx N †Kvb eÜb †bB 8. GKwU †gŠ‡ji B‡jKUªb web vm 2, 8, 8, 1 ch©vq

mviYx‡Z Zvi Ae¯’vb ⎯ K 4_© ch©v‡q IIA MÖ“‡c L 4_© ch©v‡q IA MÖ“‡c M 3q ch©v‡q IIA MÖ“‡c N 5g ch©v‡q IA MÖ“‡c 9. †eªvwg‡bi eY© n‡”Q ⎯ K meyR L ev`vgx M bxj N jvj 10. cUvwmqvg Av‡qvWvBW †hv‡M †Kvb avZzi ªeY n‡Z

njy Aat‡¶c c‡o? K K¨vjwmqvg L Kcvi M †jW N g¨vM‡bwmqvg 11. CH3CH2I Gi mv‡_ †mvwWqv‡gi wewµqvq

wK Drcbœ n‡e? K C2H6 L CH3CH2OH M CH4 N C4H10

12. ïaygvÎ RviY-weRviY wewµqvq Drcbœ kw³‡K mivmwi we y ‡Z iƒcvš�wiZ Kiv hvq,†Kbbv⎯

K Ab¨vb¨ wewµqvq kw³ cwieZ©b Kg L RviY-weRviY wewµqvq B‡jKUªb Av`vb-

cÖ vb nq M RviY-weRviY wewµqv GKwU Zvcnvix wewµqv N RviY-weRviY wewµqv Ab¨vb¨ wewµqv

A‡c¶v `ª“Z msNwUZ nq 13. mv v wfwUªq‡ji mwVK ms‡KZ †KvbwU? K ZnSO4, 7H2O L CuSO4, H2O M FeSO4, 5H2O N CuSO4, 7H2O 14. ywU AvB‡mv‡Uv‡ci ⎯mgvb bq? K cvigvYweK msL¨v L B‡jKUªb msL¨v M ivmvqwbK ag© N fimsL¨v 15. †K wbDUªb Avwe®‹vi K‡ib? K wiKUvi L bxjm †evi M R¨vgm& P¨vWDBK N iv`vi‡dvW© 16. Avqib avZzi AvKwi‡Ki bvg wK ? K †ngvUvBU L A¨vRyivBU M M¨v‡jbv N K¨vjvgvBb 17. 1g nxi‡K KqwU Kve©b cigvYy we`¨gvb? K 3.347 × 1022 wU cigvYy L 5.02 × 1022 wU cigvYy

M 2.02 × 1022 wU cigvYy N 3.346 × 1024 wU cigvYy

18. nvB‡Wªv‡R‡bi nb-Zvc KZ? K –242 kJ /mole L 242 kJ / mole M – 420 kJ/ mole N –890 kJ/ mole 19. ZvcgvÎv evo‡j⎯ K wewµqvi MwZ K‡g L Ab¨ ai‡bi wewµqv nq M wewµqvi MwZ ev‡o N wewµqvi MwZ AcwiewZ©Z _v‡K 20. CO2 AYyi AvK…wZ n‡”Q ⎯

K †KŠwYK L iwLK M PZz¯�jKxq N wcivwgW 21. Rb Wvëb wQ‡jb ⎯ K GKRb divmx imvqbwe` L GKRb ¯‹zj wk¶K M GKRb `vk©wbK N GKRb MÖxK

`vk©wbK 22. wb‡Pi †KvbwU A vjKvBj g�jK? K CH4 L C2H6

M C3H8 N C2H5

23. M vm cÖ¯�yZ Ki‡Z wK e¨envi Kiv nq? K wc‡cU L †gRvwis wmwjÛvi M Dj&d †evZj N µwmej 24. wewµqvi MwZi Dci cÖfve †bB⎯ K ZvcgvÎv

L wewµqv cv‡Îi AvKvi M cÖfveK N wewµq‡Ki NbgvÎv 25. ivmvqwbK wewµqvi †¶‡Î †KvbwU Aek¨B

cÖ‡qvRbxq? K Pvc L Av‡jvK M Zvc N wewµqKmg�‡ni g‡a¨ ms¯•k© 26. wb‡Pi †KvbwU AavZz? K Zvgv L ¯Y© M †jvnv N †K¬vwib 27. Na3AlF6 Gi evwYwR¨K bvg wK?

K µvBIjvBU L †mvwWqvg cvB‡iv‡ev‡iU M M¨v‡jbv N †mvwWqvg _v‡qvmvj‡dU 28. A v‡fv‡M‡Wªv msL vi gvb n‡”Q⎯ K 1.66 × 10–24 L 22.4 M 6.02 × 1023 N 2.02 × 108

29. mvjdv‡ii cvigvYweK msL v n‡”Q ⎯ K 18 L 16 M 20 N 19 30. B‡jKUª‡bi Avmj fi⎯ K 1.675 × 10–24 MÖvg L 1.60 × 10–19 MÖvg

M 9.11 × 10–28 MÖvg N 2.50 × 1012 MÖvg

31. H2SO4 + Zn = ZnSO4 + H2 G wewµqvwU⎯

K cÖwZ¯’vcb L cÖkgb M cvwb‡hvRb N RviY-weRviY 32. wb‡Pi †KvbwU cUvk Gjv‡gi ms‡KZ? K Al2(SO4)3, K2SO4,24H2O L Al2O3

M NH4HCO3 N CuSO4, 7H2O 33. ch©vq mviYx‡Z n v‡jv‡Rbmg�‡ni Ae ’vb⎯ K MÖ“c IA L MÖ“c IIA M MÖ“c IVA N MÖ“c VIIA 34. wb‡Pi †KvbwU Zwor we‡k−l¨? K wPwb L †mvwWqvg †K¬vivBW M Zwor we‡k−lY †Kvl N M −z‡KvR 35. A vwmwUwj‡bi MvVwbK ms‡KZ⎯ K H – C ≡ C – H L H – C ≡ N M N ≡ N N O = C = O

DËigvjv

1 L 2 K 3 M 4 K 5 N 6 K 7 M 8 L 9 N 10 M 11 N 12 L 13 K 14 L 15 M 16 K 17 L 18 K 19 M 20 L 21 L 22 N 23 M 24 L 25 N 26 N 27 K 28 M 29 L 30 M 31 K 32 K 33 N 34 L 35 K


22. ivRkvnx †evW©-2006 imvqb : ˆbe© w³K cÖkœ 1. y'†Uv nvB‡Wªv‡Rb cigvYyi g‡a eÜb kw³ KZ

? K 431 kJ/m L 435 kJ/m M 498 kJ/m N 464 kJ/m 2. mvjdv‡ii mwZ¨Kvi ms‡KZ †KvbwU ? K S4 L S6 M S8 N S 3. †KvbwU cvwgwUK GwmW ? K C17H35COOH L C17H33COOH M C15H31COOH N C15H31COOH 4. A¨vjywgbvi ms‡KZ wK ? K Al2O3 L Al2O3'nH2O M Al2O3'3H2O N Al2O3H2O 5. XvjvB †jvnvq Kve©‡bi cwigvY KZ ? K 0.4% L 0.10% M 1–1.5% N 4% 6. †Kvb avZz mwµqZvµ‡g mK‡ji wb‡PÑ K cUvwmqvg L †Mvì M wmjfvi N Kcvi 7. †jW avZzi AvKwi‡Ki bvg wK ? K M¨v‡jbv L e¨vmë M wKDcÖvBU N A¨vRyivBU 8. wb‡Pi †KvbwU Kcvi mvj‡dU †c›UvnvB‡WªU

? K CuSO4.5H2O L ZnSO4.7H2O M FeSO4.7H2O N Al2(SO4)3K2SO4.24H2O 9. †iqb Drcv`‡b e¨eüZ †hŠ‡Mi bvg wK ? K A¨v‡gvwbqvg †K¬vivBW L †UUªvGwgb Kcvi (II) nvBWª·vBW M Kcvi (II) jeY N K¨vjwmqvg Kve©‡bU 10. wb‡æi †Kvb GwmW wØ-¶viKxq ? K H2SO4 L HCl M HNO3 N H3PO4 11. †mvwWqvg wRs‡K‡Ui mwVK ms‡KZ †KvbwU ? K Na2ZnO L Na2ZnO3 M Na2ZnO4 N Na2Zn(OH)4 12. nvB‡cvi ivmvqwbK bvg wK ? K †mvwWqvg _v‡qvmvj‡dU L †mvwWqvg cvB‡iv‡ev‡iU M †mvwWqvg A¨vjywg‡bU N †mvwWqvg mvqvbvBW

13. wb‡Pi †KvbwU Dfagx© A·vBW ? K Na2O L Al2O3 M N2O N CO 14. Kve©wbj MÖ“‡ci Kvh©Kixg�jK †KvbwU ? K – COOR L > CO M – CHO N – COOH 15. A¨vj‡Kvn‡ji mvaviY ms‡KZ †KvbwU ? K CnH2n + 2 L CnH2nOH M CnH2n – 2 N CnH2n + 1 OH 16. †RUbj cÖ ‘Z Kivi †¶‡Î KZ †Mwg

`xN© KvPbj cÖ‡qvRb ? K 15 †Mwg L 20 †Mwg M 30 †Mwg N 10 †Mwg 17. †mvwWqvg †K¬vivB‡Wi Mjbv¼ KZ ? K 801°C L 100°C M 1465°C N 0°C 18. wPwbi kieZ †Kvb cÖKvi wgkÖY ?

K mgmË¡ wgkÖY L AmgmË¡ wgkÖY M †gŠwjK c`v‡_©i wgkÖY N †hŠwMK c`vv‡_©i wgkÖY 19. me‡P‡q fvix †gŠj †KvbwU ? K nvB‡Wªv‡Rb L wnwjqvg M gviKvix N BD‡iwbqvg 20. e¯‘i ag© aviY K‡i Giƒc ¶y ªZg

KwYKvi bvg wK? K cigvYy L AYy M KYv N †gŠj 21. wb‡æi †KvbwU wØcigvYyK AYy? K mvjdvi L dmdivm M †K¬vwib N Avqib 22. AYyi aviYvi cÖeZ©K †K ? K Wvëb L ev‡R©wjqvm M A¨v‡fv‡M‡Wªv N wbDUb 23. Aviex fvlv †_‡K †Kvb †gŠjwU D™¢‚Z ? K †evib L ‡ewiqvg M †eªvwgb N wemgv_ 24. M −y‡Kv‡Ri ¯’ �j ms‡KZ †KvbwU ? K CH L CH2O M CHO N CHO2 25. †KvbwU †gŠwjK KwYKv bq ?

K B‡jKUªb L †cÖvUb M wbDUªb N cwRUªb 26. 2, 8, 2 B‡jKUªb web vmwU †Kvb †gŠ‡ji

Ñ? K Na L K M Mn N Mg 27. †Kvb M¨v‡mi eY© ev`vgx ? K CO2 L CO M NO2 N NO 28. ch©vq mviwYi k�b¨ MÖ“‡ci †gŠjmg�‡ni

mvaviY Ae¯’v †Kgb ? K KwVb L Zij M Av`ª© N evqyexq 29. wewµqvi mvg ve ’v †KvbwU Øviv cÖfvweZ nq

bv ? K Pvc L ZvcgvÎv M wewµqvi cvÎ N NbgvÎv 30. wewµqvi MwZi Dci cÖfve †bB Kvi ? K ZvcgvÎv L cÖfveK M cv‡Îi AvKvi N wewµqvi NbgvÎv 31. †nevi em c×wZ‡Z A¨v‡gvwbqv

ms‡k−l‡Yi †¶‡Î ∆H Gi gvb KZ ? K 92 kJ L – 92 kJ M 192.5 kJ N – 192.5 kJ 32. ivmvqwbK mvg¨ve¯’v GKwU Ñ K w¯’Zve¯’v L wewµqv eÜ n‡q hvIqv M MwZgq Ae¯’v N wewµqv m„wó nIqv 33. Al3+ G‡¶‡Î Z¨vMK…Z B‡jKUªb msL¨v KZ

? K 03wU L 10wU M 14wU N 27wU 34. GK d¨viv‡W mgvb KZ ? K 9.65 × 104C L 9.65 × 10–4C M 9.65 × 105C N 9.65 × 10–5C 35. wb‡æi †KvbwU wbkv`‡ji ms‡KZ ? K (NH4)2CO3 L (NH4)2SO4 M NH4HCO3 N NH4HCO3

DËigvjv

1 L 2 M 3 N 4 K 5 N 6 L 7 K 8 K 9 L 10 K 11 N 12 K 13 L 14 L 15 N 16 N 17 K 18 K 19 N 20 L 21 M 22 M 23 K 24 L 25 N 26 N 27 M 28 N 29 M 30 M 31 L 32 M 33 K 34 K 35 M


23. ivRkvnx †evW©-2005 imvqb : ˆbe© w³K cÖkœ 1. cvigvYweK fi aviYvi cÖeZ©K †K? K Rb Wvëb L †M-jymvK M wbDUb N ev‡R©wjqvm 2. MjbvsK, ùzUbvsK Ges NbZ¡ e �yi †Kvb&

a‡g©i Aš�M©Z? K †fŠZ ag© L ivmvqwbK ag© M †fŠZ I ivmvqwbK ag© N c`v‡_©i ag© 3. A¨vjywgwbqvg mvj‡d‡Ui ms‡KZ n‡”QÑ K AlSO4 L Al3(SO4)2 M Al(SO4)2 N Al2(SO4)3 4. wecixZ AbycvZ m�ÎwU me©cÖ_g KZ mv‡j

cÖKvk nq? K 1799 L 1803 M 1827 N 1792 5. cÖgvY ZvcgvÎv I Pvc ej‡Z eySvq? K 0°C I 1 atm Pvc L 0°C I 1 evqexq Pvc M 0°C I 1 cm cvi‡ì Pvc N 25°C I 1 cm cvi‡ì Pvc 6. we −wPs cvDWv‡ii ms‡KZ †Kvb&wU? K CuSO4. 5H2O L Ca(OCl)Cl M Na2CO3 N Ca3(PO4)2 7. dmdiv‡mi mwVK ms‡KZ †Kvb&wU? K P L P2 M P3 N P4 8. cvi‡K¬vwiK GwmW (HClO4) Aw·‡R‡bi

kZKiv mshyw³ KZ? K 35⋅3% L 63⋅7% M 76⋅6% N 88⋅9%

9. 4020 Ca2+ -Gi B‡jKUªb msL¨v KZ?

K 10 L 15 M 18 N 20 10. †Kvb †gŠ‡ji cigvYy‡Z awU †cÖvUb, bwU

B‡jKUªb I cwU wbDUªb we`¨gvb| H †gŠ‡ji cigvYyi fi msL¨v KZ?

K a + b L a + c M b + c N a + b + c 11. wb‡Pi †Kvb& AYyi MVb mij îwLK? K CO2 L H2O M CH4 N NH3 12. GKwU †gŠ‡ji me©‡kl K¶c‡_ 8wU

B‡jKUªb we`¨gvb| †gŠjwU ch©vq mviYxi †Kvb& MÖ“‡c Aew ’Z?

K VIIIA MÖ“‡c L k�b¨ (0) MÖ“‡c M VIII B MÖ“‡c N IA MÖ“‡c 13. PZz_© †k‡j m‡ev©”P KZwU B‡jKUªb _vK‡Z

cv‡i? K 20 wU L 18 wU

M 32 wU N 64 wU 14. Zn + Cu++→Zn++ + Cu wewµqvwU‡Z

†Kvb&wU weRvi‡Ki KvR K‡i? K Cu++ L Zn M Zn++ N Cu 15. ivmvqwbK wewµqvi †¶‡Î †Kvb&wU Aek¨B

cÖ‡qvRbxq? K Av‡jvK L Zvc M wewµqKmg�‡ni g‡a¨ ms¯•k© N Pvc 16. GK †gvj cwigvY †Kvb e¯‘‡K h‡_ó

cwigvY ªve‡K `ªexf‚Z Ki‡j Zv‡ci †h cwieZ©b nq Zv‡K †m e¯‘i wK e‡j?

K `nb Zvc L cÖkgb Zvc M `ªeY Zvc N `nb Zvc I cÖkgb

Zvc 17. wb‡Pi †Kvb& mgxKiYwU cÖkgb wewµqvi

Aš�M©Z? K AlCl3 + H3O → Al(OH)3 + 3 HCl L NaOH + HCl → NaCl + H2O M CH4 + Cl2 → CH3Cl + HCl N Zn + H2SO4 → ZnSO4 + H2 18. wWD‡Uwiqvg I wUªwUqvg Kvi

AvB‡mv‡Uvc? K Aw·‡Rb L bvB‡Uªv‡Rb M nvB‡Wªv‡Rb N Kve©b 19. wb‡Pi †Kvb&wU Zwor Awe‡k−l¨? K wPwb L mvaviY jeY M Kcvi mvj‡dU N mvjwdDwiK

GwmW 20. GKwU Zxeª GwmW I Zxeª ¶vi‡Ki g‡a¨

cÖkgb wewµqvi Zvc n‡”Q- K –57.3 kJ L 57.3 kJ M 100 kJ N –757 kj 21. cvwbi AYy‡Z GKwU Aw·‡Rb I GKwU

nvB‡Wªv‡Rb cigvYyi g‡a¨ eÜb kw³ njÑ

K 435 kJ L 498 kJ M 464 kJ N 414 kJ 22. c −vwUbvg P‚Y© †Kvb&wUi cÖ ‘wZ‡Z cÖfveK

wn‡m‡e KvR K‡i? K mvjwdDwiK GwmW L A¨v‡gvwbqvi wkí Drcv`b M K…wÎg wN ˆZwi‡Z N cwjw_wjb 23. mv`v wfwUªqj Gi ms‡KZ †Kvb&wU? K ZnSO4. 7H2O L CuSO4. 5 H2O M Na2SO4. 10 H2O N FeSO4. 7 H2O 24. mwµqZv µ‡g †Kvb& avZzwUi Ae¯’vb

nvB‡Wªv‡R‡bi wb‡P?

K A¨vjywgwbqvg L cUvwmqvg M wRsK N Kcvi 25. gwiPvi GKwU MÖnY‡hvM¨ ms‡KZ njÑ K Fe2O3. H2O L Fe2O3. nH2O M Fe3O2. 5 H2O N Fe3O4. nH2O 26. †Kvb& wewµqvwU mwVK bq? K Zn + CuSO4 → ZnSO4 + Cu L Cu + FeSO4 → CuSO4 + Fe M NaCl + AgNO3 → AgCl + NaNO3 N Cu + HgCl2 → CuCl2 + Hg 27. B¯•vZ n‡”Q- K weï× Avqib L ¯í cwigvY Kve©bhy³ Avqib M GKwU †gŠj N †jvnvi AvKwiK 28. †mvwWqvg _v‡qvmvj‡dU ªe‡Y nvB‡Wªv‡K¬vwiK

GwmW †hvM Ki‡j †Kvb&wUi Aat‡¶c c‡o?

K NaCl L H2O M S N SO2 29. †jLvi Kvwj‡Z †Kvb&wU eëüZ nq? K ZnSO4. 7 H2O L Al2(SO4)3. 24 H2O M FeSO4. 7 H2O N CuSO4. 5 H2O 30. †Kvb&wU † §wjs më wn‡m‡e eëüZ nq? K NH4Cl L Al2(SO4)3 M Fe3O4 N (NH4)2CO3 31. wb‡æi †Kvb& avZzwU mwµqZv µ‡g mevi

Dc‡i? K Kcvi L Avqib M g¨vM‡bwmqvg N †mvwWqvg 32. †Kvb& avZzi jeY wkLv cix¶vq D¾¡j

†mvbvjx njy eY© †`Lvq? K †mvwWqvg L cUvwmqvg M K¨vjwmqvg N A¨vjywgwbqvg 33. ÒejqÓ ev wis †U‡÷i mvnv‡h¨ †Kvb&

g�jK mbv³ Kiv nq? K PO4

3– L SO42–

M CO32– N NO3

– 34. †Kvb&wU A¨vwmwUK Gwm‡Wi wg_vBj MÖ“c‡K

AvµgY K‡i? K PCl3 L PCl5 M Cl2 N Na 35. G÷v‡ii Kvh©Kix g�jK †Kvb&wU? K > C = C < L – C ≡ C – M N

DËigvjv 1 K 2 K 3 N 4 N 5 K 6 L 7 N 8 L 9 M 10 L 11 K 12 L 13 M 14 L 15 M 16 M 17 L 18 M 19 K 20 K 21 M 22 K 23 K 24 N 25 L 26 L 27 L 28 M 29 M 30 N 31 N 32 K 33 N 34 M 35 N

– C

O

OH

– C

O

OR


24. ivRkvnx †evW©-2004 imvqb : ˆbe© w³K cÖkœ 1. wb‡æi †KvbwU †fŠZ cwieZ©b ? K nvB‡Wªv‡Rb I Aw·‡Rb ms‡hv‡M cvwb

ˆZwi L Rjxq ev®•‡K Lye VvÊv K‡i eid

ˆZwi M †gvgevwZ R¡vjv‡bv N cvwb‡Z Zwor we‡k−lY 2. wPwbi mieZ †Kvb RvZxq wgkÖY ? K AmgmË¡ wgkÖYL mgmË¡ wgkÖY M †gŠwjK wgkÖY N †hŠwMK wgkÖY 3. Aw·‡R‡bi GK †gvj n‡”Q⎯ K 32 MÖvg L 16 MÖvg M 32 N 1.66 × 10

–24 4. me‡P‡q fvix †gŠj⎯ K nvB‡Wªv‡Rb L wnwjqvg M BD‡iwbqvg N gviKvix 5. †Kvj‡qW KYvi BZt¯�Z ågY‡K e‡j⎯ K e¨vcb L †cv‡jb M `ªeY N eªvDbxq MwZ 6. GKwU cvwbi AYy fi n‡”Q⎯ K 1.99 × 10

–23 MÖvg L 2.99 × 10

–23 MÖvg M 3.99 × 10-23 MÖvg N 3.343 × 1022 MÖvg 7. cÖgvY Pvc I ZvcgvÎvq mKj M¨v‡mi

†gvjvi AvqZb⎯ K 22.4 wm wm L 22.4 wjUvi M 6.023 × 10-23

N 2.24 wjUvi 8. A¨v‡fv‡M‡Wªv msL¨vi gvb n‡”Q⎯ K 2.24 L 1.66 × 10-24 M 22.4 N 6.023 × 1023

9. A¨v‡gvwbqvi AYyi AvK…wZ⎯ K †KŠwYK AvK…wZi L mij ˆiwLK M wcivwgW AvK…wZi N PZz¯�jKxq 10. A¨vjywgwbqvg I dm‡dU g�j‡Ki mgš^‡q

†hŠ‡Mi ms‡KZwU nj⎯ K Al2(PO4)3 L AlPO4 M Al3(PO4)2 N AlPO3 11. Re Gwm‡Wi Kvh©Kix g�jK †KvbwU ? K C = O L M ⎯ COOR N ⎯ CHO 12. †d¬vwi‡bi B‡jKUªb web¨vm n‡jv⎯ K 2, 6 L 2, 8 M 2, 7 N 2, 9

13. `ywU AvB‡mv‡Uv‡ci mgvb bq⎯ K fi msL¨v L cvigvYweK msL¨v M B‡jKUªb msL¨vN ivmvqwbK ag© 14. AvqwbK eÜ‡bi aviYv †`b⎯ K Wvëb L cÖvDm M f¨vbWvi Iqvjm N †Kv‡mj 15. GKwU †gŠ‡ji B‡jKUªb web¨vm 2, 8,

18, 8, 2 n‡j ch©vq mviwY‡Z †gŠjwUi Ae¯’vb−

K 4_© ch©v‡q IIA †kÖYx‡Z L 5g ch©v‡q IIA †kÖYx‡Z M 3q ch©v‡q IA †kÖYx‡Z N 5g ch©v‡q VIA †kÖYx‡Z 16. VIIA MÖ“‡ci †gŠjmg�n‡K GK‡Î wK

bv‡g AwfwnZ Kiv nq ? K ¶vi avZz L g„r ¶vi avZz M n¨v‡jv‡Rb N wbw®Œq M¨vm 17. CuO + C = Cu + CO G wewµqvwU⎯ K wØ-we‡hvRb L RviY-weRviY M cÖkgb N we‡hvRb 18. cÖfveK Ggb e¯‘⎯ K hv wewµqvq †Kvbiƒc f‚wgKv iv‡L bv L hv wewµqvi MwZ e„w× ev n«vm K‡i M hv wewµqvi Drcv`b cwieZ©b K‡i N hv wewµqvq AskMÖnY K‡i Ab¨ †hŠ‡M

iƒcvš�wiZ K‡i 19. ZvcgvÎv evov‡j⎯ K wewµqvi MwZ ev‡o L wewµqvi MwZ K‡g M wewµqvi MwZ AcwiewZ©Z _v‡K N Ab¨ ai‡bi wewµqv nq 20. wg‡_‡bi Mjbv¼ KZ ? K –135° †M L –188° †M M –172° †M N –183° †M 21. †KvbwU Zwor we‡k−l¨ c`v_© bq ? K †mvwWqvg †K¬vivBW L Kcvi mvj‡dU `ªeY M GwmWhy³ cvwb N M −y‡KvR 22. A¨vbvqb wK ? K abvÍK Avqb L abvÍK ZworØvi M FYvÍK AvqbN FYvÍK ZworØvi 23. 1 K¨vjwi mgvb nj⎯ K 4.18 Ryj L 0.418 Ryj M 41.8 Ryj N 1.48 Ryj 24. ∆H Gi gvb wK‡mi Dci wbf©i K‡i ? K wewµqK I Drcv‡ i †fŠZ Ae¯’vi

Dci

L ZvcgvÎvi Dci M Pv‡ci Dci N me¸‡jvi Dci 25. GKwU B‡jKUª‡bi fi KZ ? K 9.11 × 10

–28 MÖvg L 9.11 × 1028 MÖvg M 1.66 × 10

–24 MÖvg N 1.66 × 1024 MÖvg 26. XvjvB †jvnv‡Z Kve©‡bi cwigvY⎯ K 4% L 0.4% M 1.5% N 0.10% 27. we −óvi Kcvi n‡”Q⎯ K AwZ weï× Kcvi L AvKwiK M Ac ªe¨ wgwkÖZ Kcvi N 90% Kcvi 28. †Kvb avZz wkLv cix¶vq †Kvb eY© †`Lvq bv

? K †mvwWqvg L g¨vM‡bwmqvg M cUvwmqvg N Kcvi 29. cUvwmqvg Av‡qvWvBW †hŠ‡M †Kvb avZzi

`ªeY n‡Z njy Aat‡¶c c‡o ? K †jW L Kcvi M K¨vjwmqvg N g¨vM‡bwmqvg 30. jvj †jW †Kvb †hŠMwU‡K ejv nq ? K PbO L PbCrO4 M PbO, PbCrO4 N Pb3O4 31. Zzu‡Zi ms‡KZ †KvbwU ? K CuSO4. 7H2O L ZnSO4. 5H2O M CuSO4. 5H2O N ZnSO4. 7H2O 32. †Kvb M¨v‡mi eY© ev`vgx ? K CO2 L CO M NO N NO2 33. Nwoi †PB‡b †Kvb avZzi cÖ‡jc w ‡j D¾¡j

† Lvq ? K †µvwgqvg L †mvwWqvg M K¨vjwmqvg N cUvwmqvg 34. †Kvb avZzwU ¶v‡ii mv‡_ wewµqv K‡i bv

? K Al L Zn M Cu N Fe 35. je‡Yi (NaCl) ªe‡Y wb‡Pi †KvbwU

wgkv‡j mv`v Aat‡¶c c‡o ? K wmjfvi bvB‡UªU `ªeY L bvBwUªK GwmW M Kcvi mvj‡dU `ªeY N mvjwdDwiK GwmW

DËigvjv 1 L 2 L 3 K 4 M 5 N 6 L 7 L 8 N 9 M 10 L 11 L 12 M 13 K 14 N 15 L 16 M 17 L 18 L 19 K 20 N 21 N 22 M 23 K 24 N 25 K 26 K 27 M 28 L 29 K 30 N 31 M 32 N 33 K 34 N 35 K

O

OH − C


25. ivRkvnx †evW©-2003 imvqb : ˆbe© w³K cÖkœ 1| wmwjKvi weï× iƒc wK ? K. wjMbvBU L. gybvRvBU M. ‡KvqvU©R N. gv‡e©j 2| †mvwWqvg _v‡qvmvj‡d‡Ui evwYwR¨K bvg n‡jv- K. mvwRgvwU L. nvB‡cv M. †mviv N. mëwcUvi 3| wecixZ AbycvZ m�‡Îi cÖKvkK †K ? K. jyB cÖvDm L. ‡M jym¨vK M. wiKUvi N. j¨vb‡Wvë 4| Cr2O7 g�j‡Ki †hvRbx- K. 2 L. 3 M. 1 N. 4 5| wg‡_‡bi ùzUbv¼ KZ ? K. –162°C L. –153°C M. –10°C N. 0°C 6| Aw·‡Rb †_‡K wKfv‡e I‡Rvb ˆZwi nq ? K. wbtkã we y r¶i‡Yi d‡j L. m �h© iwk¥i Øviv DËß n‡q M. AwZ‡e¸wb iwk¥i Øviv DËß n‡q N. Ae‡jvwnZ wewKi‡Yi mvnv‡h 7| Zvc imvq‡b cÖgvY ZvcgvÎv KZ ? K. 100°C L. 40°C M. 4°C N. 25°C 8| Bcmg je‡Yi ms‡KZ wK ? K. ZnSO4. 5H2O L. CuSO4. 5H2O M. MgSO4. 7H2O N. FeSO4. 7H2O 9| G÷v‡ii Kvh©Kix g�jK †KvbwU ? K. –C≡C– L. –C=C–

M. –C OOR N. –C

OOH

10| ‡jvnv‡K `xN©w`b evZv‡m †i‡L w`‡j Gi Dci jvj i‡Oi Av �iY c‡o| GwU †Kvb ai‡bi cwieZ©b ?

K. ayjvevwji �i L. ‡fŠZ cwieZ©b M. weï× †jvnvq cwiYZ nIqv N. ivmvqwbK cwieZ©b 11| Amadeo Avogadro me©cÖ_g AYyi aviYv †`b

†Kvb mv‡j ? K. 1916 L. 1913 M. 1811 N. 1869 12| †KvbwU K¨vjwmqv‡gi B‡jKUªb web¨vm ? K. 2, 8, 8, 1 L. 2, 8, 8, 2 M. 2, 8, 1 N. 2, 8, 2

13| evB‡ii we y r Dr‡mi abvÍK cÖv‡š�i mv‡_ hy³ ZworØvi‡K wK e‡j ?

K. K¨v‡_vW L. A¨vbvqb M. A¨v‡bvW N. K¨vUvqb 14| wb‡Pi †gŠjmg�‡ni g‡a¨ †KvbwU †ewk mwµq ? K. Cl L. F M. Br N. I 15| †KvbwU wR‡¼i AvKwiK ? K. K¨vjvgvBb L. e·vBU M. wm‡WivBU N. wj‡gvbvBU 16| f‚-Z¡‡K Aw·‡R‡bi cwigvY fi wn‡m‡e kZKiv KZ ? K. 42% L. 7% M. 65% N. 49% 17| †divm mvj‡d‡Ui eY© wK ? K. ev`vgx L. nvjKv bxj M. meyR N. jvj 18| ‡KvbwU‡K ms‡KZ fi ejv nq ? K. cvigvYweK fi L. AvYweK fi M. AvYweK msL¨v N. fi msL¨v 19| nvB‡WªvRwqK Gwm‡Wi MvVwbK ms‡KZ †KvbwU ? K. H–C≡N L. H=N−N≡N M. H−N=N≡N N. H–C≡C–H 20| ivmvqwbK mvg¨ve ’v n‡jv- K. MwZgq Ae ’v L. wewµqv eÜ n‡q hvIqv M. ‡ewk Drcv` m„wó nIqv N. Zvc †kvlY Kiv 21| ‡h mKj wewµqvi Dfq w ‡K M¨vmxq c`v‡_©i †gvj

msL¨v mgvb †m mKj wewµqvi †¶‡Î wb‡Pi †Kvb Dw³wU mZ ?

K. Pvc e„w× Ki‡j wewµqv mvg‡bi w`‡K hvq L. Pv‡ci †Kvb cÖfve †bB M. Pvc e„w× Ki‡j wewµqv †cQb w`‡K hvq N. Pvc n«vm Ki‡j wewµqv †cQb w`‡K hvq| 22| wb‡Pi †KvbwUi ’‚j ms‡KZ wbY©q Kiv hvq bv ? K. †ebwRb L. M−y‡KvR M. weD‡Ub N. Aw·‡Rb 23| †KvbwU eûiƒcx †gŠj ? K. †mvwWqvg L. bvB‡Uªv‡Rb M. M¨vwjqvg N. Kve©b 24| nvB‡WªvKve©‡b wK wK _v‡K ?

K. Kve©b I bvB‡Uªv‡Rb L. Kve©b I nvB‡Wªv‡Rb

M. Kve©b I wmwjKb N. Kve©b, nvB‡Wªv‡Rb I Aw·‡Rb 25| wµcUb Gi me© ewn ’ �‡i B‡jKUªb msL v KZ ? K. 4 L. 6 M. 2 N. 8 26| CaCO3 = CaO + CO2 wewµqvwU †Kvb ai‡bi ? K. ms‡hvRb L. ms‡k−lY M. we‡k −lY N. we‡qvRb 27| †Kvb ai‡bi wewµqvi †¶‡Î ∆H FYvÍK ? K. Zvcnvix L. Zv‡cvrcv`x M. cÖkgb N. cvwb‡hvRb 28| †Kvb avZzi jeY Aby¾¡j eyb‡mb wkLvq †mvbvjx

njy Av‡jvmn R¡‡j ? K. K¨vjwmqvg L. g¨vM‡bwmqvg M. †mvwWqvg N. A¨vjywgwbqvg

29| A¨vj‡Kvn‡ji mvaviY ms‡KZ wK ? K. CnH2n+2 L. CnH2n+1COOH M. CnH2n N. CnH2n+1OH 30| ei‡di Mjbv¼ KZ ? K. 100°C L. 0°C M. 4°C N. 96°C 31| 1g nxi‡K KqwU cigvYy Av‡Q ? K. 1.67×1023 L. 6.023×1023 M. 5.02×1022 N. 1236987 32| GK j¶ nvB‡Wªv‡Rb cigvYy‡Z wWD‡Uwiqvg msL¨v KZ

? K. 15 L. 99,985 M. 87 N. 99,913 33| ch©vq mviwYi 6ô ch©v‡q KqwU †gŠj Av‡Q ? K. 32 L. 18 M. 23 N. 8 34| cvwbi we y r cwievwnZv e„ w×i Dcvq †KvbwU ? K. cvwb‡K kxZj Kiv L. cvwbi NbZ¡ n«vm Kiv M. cvwb‡Z A ªve¨ c`v_© †hvM Kiv N. cvwb‡Z H2SO4 †gkv‡bv 35| wb‡æi †Kvb avZzwU cÖK…wZ‡Z gy³ Ae ’vq cvIqv hvq ? K. Au L. Hg M. Ag N. Br

DËigvjv 1 M 2 L 3 M 4 K 5 K 6 K 7 N 8 M 9 M 10 N 11 M 12 L 13 M 14 L 15 K 16 N 17 M 18 L

19 M 20 K 21 L 22 N 23 N 24 L 25 N 26 N 27 N 28 M 29 N 30 L 31 M 32 K 33 K 34 N 35 K


26. ivRkvnx †evW©-2002 imvqb : ˆbe© w³K cÖkœ 1| wecixZ AbycvZ m�ÎwUi cÖeZ©K †K ? K. wiKUvi L. †M jym¨vK M. Rb Wvëb N. cÖvDm 2| mvjdv‡ii mwZ¨Kvi ms‡KZ †KvbwU ? K. S L. S4 M. S8 N. S6 3| †mjy‡jvR wb‡Pi †Kvb †Kvb Dcv`vb w ‡q MwVZ ? K. Kve©b L. nvB‡Wªv‡Rb I †K¬vwib M. Kve©b, nvB‡Wªv‡Rb I K¨vjwmqvg N. Kve©b, nvB‡Wªv‡Rb I Aw·‡Rb 4| wb‡Pi †KvbwU cigvYyiƒ‡c Ae ’vb K‡i ? K. wbqb L. nvB‡Wªv‡Rb M. nvB‡Wªv‡Rb †K¬vivBW N. †K¬vwib 5| BD‡iwbqv‡gi cvigvYweK fi KZ ? K. 3.95 L. 238.00

M. 3.95×10−22 MÖvg N. 3.95×10−23 MÖvg 6| †evib bvBUªvB‡Wi ms‡KZ †KvbwU ? K. BN L. BN2 M. B2N N. BON 7| mvjdvi-Gi B‡jKUªb web¨vm 2, 8, 6| ch©vq

mviwY‡Z Zvi Ae ’vb †Kvb ch©v‡q ? K. 6ô ch©v‡q L. 3q ch©v‡q M. 2q ch©v‡q N. 4_© ch©v‡q 8| Rjxq ev‡®•i ev®•NbZ¡ KZ ? K. 8 L. 9 M. 10 N. 12 9| GKwU cigvYyi e¨vm n‡”Q⎯ K. 10−13 †m. wg. L. 1013 †m. wg. M. 10−8 †m. wg. N. 108 †m. wg. 10| 2 FeCl2 + Cl2 = 2FeCl3 wewµqvwU †Kvb

ai‡bi ? K. RviY-weRviY L. cÖkgb M. we‡qvRb N. cvwb‡hvRb 11| †Kv‡mj KZ wLª÷v‡ã AvqwbK eÜ‡bi aviYv †`b ? K. 1915 L. 1916 M. 1917 N. 1918 12| Avš�tAvYweK kw³ e ‘i wK‡mi Dci wbf©i K‡i ? K. AYyi ˆ`‡N©ï Dci L. AYyi cÖ‡¯’i Dci M. e¯‘i cÖK…wZi Dci N.cigvYyi ¸‡Yi Dci 13| c−vwUwbqv‡gi cÖZxK †KvbwU ?

K. Pl L. Po M. Pt N. Pu 14| GK †gvj nvB‡Wªv‡Rb M¨vm KZ †gvj Aw·‡Rb

M¨v‡mi mv‡_ wewµqv K‡i ? K. A‡a©K †gvj L. GK †gvj M. yB †gvj N. wZb †gvj 15| weï× B_vBb I †K¬vwib wgwkÖZ Ki‡j we‡ùviYmn

wK wK Drcbœ nq ? K. CH4 I Cl2 L. C I HCl M. CH3Cl I HCl N. CCl4 I H2 16| wfUvwgb wm †Kvb Gwm‡W cvIqv hvq ? K. diwgK GwmW L. A¨vwmwUK GwmW M. GmKiweK GwmW N. IwjK GwmW 17| K…wÎg wN ˆZwi‡Z †Kvb cÖfveK eëüZ nq ? K. g¨v½vwbR WvB A·vBWL. wM−mvwib M. Kve©b ¸ov N. wb‡Kj P‚Y© 18| mvjdvi WvB A·vB‡Wi RviY cÖwµqvq AZ¨vbyK‚j

ZvcgvÎv KZ ? K. 400 – 500C L. 300 – 400C

M. 500 –6000C N. 300 – 3500C 19| wmjfv‡ii Zwor ivmvqwbK Zzj¨ fi KZ ? K. 0.000000001 MÖvgL. 0.0001218 MÖvg M. 0.00118 MÖvg N. 0.0000104 MÖvg 20| GK A¨vw¤•qvi we y r GK †m‡KÛ a‡i cÖevwnZ n‡j

KZ Kzj¤ Avavb ’vbvš�wiZ nq ? K. GK Kzj¤ L. yB Kzj¤ M. wZb Kzj¤ N. cuvP Kzj¤ 21| wb‡Pi †KvbwU wewµqvi cwigÊj bq ? K. wewµqvi cvÎ L. wewµqK M. GKwU wewµqvi mKj Dcv`vb N. bvovevi `Ê 22| GK MÖvg Zzj¨ nvB‡Wªv‡K¬vwiK Gwm‡W KZ MÖvg ? K. 35.5 L. 36.5 M. 17.5 N. 18 23| †jvnvi AvKwiK‡K wK Øviv Nbxfeb Kiv hvq ? K. DËß cvwb Øviv L. GwmW Øviv M. Pz¤K Øviv N. †jvnvi ¸uov Øviv 24| Kcvi cvBivBUm - Gi ms‡KZ †KvbwU ? K. CuPS2 L. CuCrS2

M. CuFeS2 N. CuK2S

25| Na+OH– + H+Cl– = Na+Cl– + H2O- G wewµqvq `k©K Avqb n‡”Q ⎯

K. H+ L. Na+ & Cl– M. OH– N. me¸‡jv 26| Aw·‡Rb iƒc‡f KqwU ? K. GKwU L. yBwU M. wZbwU N. PviwU 27| HCl wm³ Ae ’vq †Kvb avZzi je‡Y B‡Ui gZ jvj

e‡Y©i wkLv Drcbœ nq ? K. Mg jeY L. Al jeY M. Ca jeY N. K jeY 28| †gwW‡K‡UW cvDWv‡ii Ask wn‡m‡e †KvbwU eëüZ

nq ? K. ZnSO4 L. N2O M. ZnO N. ZnCl2

29| PCl3- †Z dmdiv‡mi myß †hvRbx KZ ? K. 1 L. 2 M. 3 N. 4 30| cvigvYweK Pzwj−‡Z gš’iKiƒ‡c †KvbwU eëüZ nq ? K. nxiK L. Kve©b M. MÖvdvBU N. wmwjKb 31| A¨vjywgwbqvg -Gi ùzUbv¼ KZ ? K. 22700 †m. L. 22800 †m. M. 22500†m. N. 22600†m. 32| a �gvqgvb mvjwdDwiK Gwm‡Wi ms‡KZ †KvbwU ? K. H2SO4 L. H3SO3 M. H2S3Os N. H2S2O7 33| B_v‡ii Kvh©Kix g�jK †KvbwU ? K. ⎯ COOR L. M. ⎯ CHO N. ⎯ COOH 34| wf‡bMvi wn‡m‡e †KvbwU eëüZ nq ? K. dmdwiK GwmW L. j¨vKwUK GwmW M. A¨vwmwUK GwmW N. Kve©wbK GwmW 35| †KvbwU cvwgwUK GwmW ? K. C17 H35 COOH L. C15H35COOH M. C15H31COOH N. C17H33COOH

DËigvjv 1 K 2 M 3 N 4 K 5 L 6 K 7 L 8 L 9 M 10 K 11 L 12 M 13 M 14 K 15 L 16 M 17 N 18 K

19 M 20 K 21 M 22 L 23 M 24 M 25 L 26 L 27 M 28 M 29 L 30 M 31 K 32 N 33 L 34 M 35 M

| | ⎯ C ⎯ O ⎯ C– | |


27. ivRkvnx †evW©-2001 imvqb : ˆbe© w³K cÖkœ 1| †Kvb †kj-G m‡e©v”P 32 wU B‡jUªb _vK‡Z cv‡i? K. 2q L. 3q M. 4_© N. 1g 2| ivmvqwbK wewµqvi †¶‡Î †KvbwU Aek¨B

cÖ‡qvRbxq? K. ms¯•k© L. Zvc M. Av‡jvK N. cÖfveK 3| yBwU AvB‡mv‡Uv‡ci †KvbwU mgvb bq ? K. cvigvYweK msL¨v L. fi msL¨v M. B‡j±«b msL¨v N. ivmvqwbK ag© 4| wmjfv‡ii Zwor ivmvqwbK Zzj¨fi †KvbwU ? K. 0.01118 MÖvg L. 0.001118 MÖvg M. 0.0001118 MÖvg N. 0.00118 MÖvg 5| abvÍK †hŠM g�jK †KvbwU ? K. SO4 L. PO4 M. CO3 N. NH4 6| †Kvb gva¨‡g †Kvj‡qW KY©vi BZt �Z ågY‡K wK

e‡j? K. eªvDbxq MwZ L. Wvë‡bi MwZ M. A¨v‡fv‡M‡Wªvi MwZ N. j¨vfqwmqv‡ii MwZ 7| †Kvb †hŠ‡Mi ’‚j ms‡KZ CH I AvYweK fi 78

n‡j, AvYweK ms‡KZ n‡eÑ K. CH L. C6H6

M. CH4 N. C2H2

8| †mvwWqvg †K¬vivB‡Wi Mjbv¼ †KvbwU ? K. 4080 †m L. 8040 †m M. 8030 †m N. 8010 †m 9| †KvbwU g¨vM‡bwmqv‡gi B‡jKUªb web¨vm? K. 2, 2, 4 L. 2, 4, 2 M. 2, 8, 2 N. 2, 8, 1 10| GKwU Zxeª GwmW I Zxeª ¶vi‡Ki g‡a¨ cÖkgb

wewµqvi Zvc n‡”QÑ K. −57.3 wK‡jv Ryj L. 57.3 wK‡jv Ryj M. 100 wK‡jv Ryj N. −757 wK‡jv Ryj 11| M¨vm AvqZb m�Î Avwe®‹vi K‡ibÑ K. g¨v·I‡qj L. †M-jym¨vK M. Rb Wvëb N. iv`vi †dvW© 12| wb‡æi †KvbwU Aèagx© A·vBW?

K. CO2 L. Na2O M. Al2O3 N. CuO 13| †Kvb wewµqvwU mwVK ? K. Al+HCl=AlHCl L. Al+HCl=Al3Cl+H2

M. 2Al+6HCl=2AlCl3 +3H2

N. 2Al+2HCl=AlCl3+H2 14| ch©vq mviwY‡Z bvB‡Uªv‡R‡bi Ae ’vb †Kv_vq? K. MÖ“c IA L. MÖ“c IIIA M. MÖ“c VIIA N. MÖ“c VA 15| H2+Cl2=2HCl GwU †Kvb ai‡bi wewµqv? K. RviY-weRviY L. ms‡hvRb M. ms‡k−lY N. cÖkgb 16| cvwbi AYyi AvK…wZ †KvbwU ? K. V AvK…wZK L. mij‰iwLK M. PZz �jKxq N. wcivwgW AvK…wZK 17| GKwU B‡jKUª‡bi Avavb n‡”QÑ K. -1.60×1010 Kzj¤ L. -1.60×10-19 Kzj¤ M. -6.10×10-19 Kzj¤ N. -1.06×10-19 Kzj¤ 18| †KvbwU‡K e−y-wfwUªqj e‡j? K. ZnSO4.7H2O L. FeSO4.7H2O M. CaSO4.2H2O N. CuSO4.5H2O 19| wPwji gi“f‚wg‡Z mëwcUvi bv‡g †KvbwU cvIqv

hvq? K. †mvwWqvg Kve©‡bU L. †mvwWqvg †K¬vivBW M. †mvwWqvg bvB‡UªU N. †mvwWqvg mvj‡dU 20| O-2 (A·vBW Avqb) Gi B‡jKUªb msL¨v n‡”QÑ K. 7 L. 10 M. 8 N. 9 21| †Kvb avZz‡K Kve©b weRviY cÖwµqvq wb®‹vkb Kiv nq ? K. A¨vjywgwbqvg L. g¨vM‡bwmqvg M. †mvwWqvg N. wRsK 22| †Kvb avZz ¶v‡ii mv‡_ wewµqv K‡i bv ? K. wjw_qvg L. wRsK M. A¨vjywgwbqvg N. †jW 23| †Kvb avZz jeY wkLv cix¶vq meyRvf bxj is

cÖ k©b K‡i?

K. †mvwWqvg L. cUvwmqvg M. Kcvi N. K¨vjwmqvg 24| g¨vM‡bwmqvg bvBUªvBW Gi ms‡KZÑ K. Mg3N2 L. Mg3(N2)3 M. Mg2N3 N. MgN3 25| †jKj¨vÝ †m‡j FYvÍK cÖvš� n‡”QÑ K. Kve©b `Ê L. g¨v½vwbR WvB-A·vBW M. wRsK `Ê N. Kcvi `Ê 26| nvB‡Wªv‡Rb Gi GKwU cigvYyi fiÑ K. 3.95×10-22 MÖvg L. 1.67×10-24 MÖvg M. 2.99×1023 MÖvg N. 1.66×10-24 MÖvg 27| Kv÷ Avqi‡b kZKiv Kve©b _v‡KÑ K. 2-4.05% L. 2Ñ4.4% M. 2Ñ4% N. 2-4.5% 28| gwiPvi GKwU MÖnY‡hvM¨ mshyw³ njÑ K. Fe2O3.H2O L. Fe2O3.H2O2

M. Fe2O3.nH2O N. Fe3O2.nH2O 29| cvwbi GK †gŠj n‡”QÑ K. 18 MÖvg L. 18 M. 2.99×10-23 N. 1.66×10-24 MÖvg 30| cwieZ©bkxj †hvR¨Zv cÖ`k©b K‡i †KvbwU ? K. wRsK L. †mvwWqvg M. cUvwmqvg N. mvjdvi 31| wPwbi kieZ n‡”QÑ K. AmgmË¡ wgkÖY L. †gŠwjK c`v_© M. mgmË¡ wgkÖY N. †hŠwMK c`v_© 32| A¨vj‡Kvn‡ji Kvh©Kix g�jK †KvbwU ? K. −COOH L. −OH M. −CHO N. >CO 33| wb‡æi †KvbwU eY©nxb? K. N2O3 L. NO2 M. NH4Cl N. N2O4 34| †KvbwU Kve©‡bi iƒc‡f` bq ? K. Kve©vBW L. f‚mv M. nxiK N. MÖvdvBU 35| me©cÖ_g e ‘‡K yBwU cÖavb †kÖYx‡Z fvM K‡ibÑ K. wbDUb L. j¨vfqwmqvi M. ev‡R©wjqvm N. A¨v‡fv‡M‡Wªv

DËigvjv 1 M 2 K 3 L 4 L 5 N 6 K 7 L 8 N 9 M 10 K 11 L 12 K 13 M 14 N 15 M 16 K 17 L 18 N

19 M 20 L 21 N 22 K 23 M 24 K 25 M 26 L 27 N 28 M 29 K 30 N 31 M 32 L 33 N 34 K 35 L


28. w`bvRcyi †evW©-2009 imvqb : ˆbe© w³K cÖkœ [we‡kl `ªóe¨ : mieivnK…Z ˆbe© w³K Afx¶vi DËic‡Î cÖ‡kœi µwgK b¤^‡ii wecix‡Z cÖ Ë eY©m¤^wjZ

e„Ëmg�n n‡Z mwVK/m‡e©vrK…ó DË‡ii e„ËwU ej c‡q›U Kjg Øviv m¤•�Y© fivU Ki| cÖwZwU cÖ‡kœi gvb 1|] 1. AvqwbK †hŠ‡Mi †¶‡Î †Kvb& evK¨wU mwVK bq ? K AvqwbK †hŠ‡Mi MjbvsK †ewk L AvqwbK †hŠM mvaviYZ cvwb‡Z `ªeYxq M KwVb AvqwbK †hŠM we`y r cwievnx N B‡jKUªb `vb I MÖn‡Yi gva¨‡g AvqwbK

†hŠM m„wó nq 2. wµÞb-Gi M †k‡j KZwU B‡jKUªb Av‡Q ? K 16 L 32 M 8 N 18 3. wg‡_b AYyi AvK…wZ wKiƒc ? K îwLK L †KŠwYK M wcivwgW N PZz¯�jKxq 4. †Kvb& evK¨wU mwVK bq ? K MÖ“c I †gŠjmg�‡ni MjbvsK cvigvYweK

msL¨v e„w×i mv‡_ e„w× cvq L MÖ“c VII †gŠjmg�‡ni MjbvsK cvigvYweK

msL¨v e„w×i mv‡_ e„w× cvq M MÖ“c I †gŠjmg�n‡K ¶vi avZz e‡j N MÖ“c VII †gŠjmg�n‡K n¨v‡jv‡Rb e‡j 5. Dfagx© A·vBW †Kvb&wU ? K SO3 L Al2O3 M P2O5 N MgO

6. NH4CNO ∆

⎯→ NH2-CO-NH2 wewµqvwU Kx ai‡bi wewµqv ?

K cÖkgb L mgvYyKiY M we‡hvRb N cwjgviKiY 7. 302 ⎯→ 2O3 wewµqvwU msNU‡bi Rb¨

†Kvb&wU cÖ‡qvRbxq ? K kã K¤•b L Av‡jvK M wbtkã we`y r¶iYN Pvc I AvNvZ 8. A¨v‡gvwbqv n‡Z bvBwUªK GwmW cÖ ‘wZ‡Z

cÖfveK wn‡m‡e eëüZ nq †Kvb&wU ? K c −vwUbvg L wb‡Kj P�Y© M †jvnvi uov N f¨vbvwWqvg †c‡›Uv·vBW 9. wb‡Pi †Kvb&wU Zwor Awe‡k−l¨ ? K mvaviY je‡Yi `ªeY L wPwb M Kcvi mvj‡dU `ªeY N mvjwdDwiK GwmW 10. Zvcnvix wewµqv †Kvb&wU ?

K H2(g)+12 O2(g) ⎯→ H2O(l)

L C(s)+O2(g) ⎯→ CO2 (g) M N2(g)+O2 (g) ⎯→ 2NO(g) N Dc‡ii me¸‡jv 11. †jvnv wb®‹vk‡b evZ¨vPzwj−i wb‡Pi w`‡Ki

ZvcgvÎv KZ _v‡K ?

K 300° †m L 1000° †m M 1500° †m N 400° †m 12. K¨vjvgvBb-Gi ms‡KZ †Kvb&wU ? K ZnS L Fe3O4 M Fe2O3 N ZnCO3 13. K¨vjwmqvg avZzi mv‡_ †Kvb& avZzi me‡P‡q

†ekx wgj ? K Kcvi L A¨vjywgwbqvg M Avqib N g¨vM‡bwmqvg 14. g¨vM‡bwmqvg Aw·‡K¬vivB‡Wi mwVK ms‡KZ

†Kvb&wU ? K Mg2OCl2 L Mg2OCl M MgOCl2 N MgOCl 15. wb‡Pi †Kvb& avZzwU cwieZ©bkxj †hvRbx †`Lvq

bv ? K †jW L †mvwWqvg M Avqib N Kcvi 16. Cu(NO3)2 †K Zv‡c we‡qvwRZ Ki‡j Kx

cvIqv hvq ? K Cu2O+NO2+O2 L CuO+NO+O2 M CuO+NO2+O2 N Cu2O+N2+O2

17. g„ y cvbxq ˆZix‡Z †Kvb&wU eëüZ nq ? K N2O L NO2 M CO N CO2

18. ¯•k© c×wZ‡Z †Kvb& GwmW Drcvw`Z nq ? K HNO3 L H2SO4 M H3PO4 N HCl 19. GKwU mvjdvi AYy‡Z KZwU mvjdvi cigvYy

_v‡K ? K 2 L 4 M 6 N 8 20. wbi“ K †Kvb&wU ? K H2SO3 L HCl M H3PO4 N HNO3

21. ÔcÖvYkw³Õ gZev‡ì cÖwZôvZv †K ? K j¨vf‡qwm‡q L ev‡R©wjqvm M †fvjvi N Wvëb 22. wb‡gœi †Kvb& †hŠMwU A¨vjwKb ? K C3H8 L C5H12 M C4H8 N C4H10 23. wKfv‡e Bw_b n‡Z B‡_b cvIqv hvq ? K HBr Gi mv‡_ wewµqv n‡j L `nb Ki‡j M H2O Gi mv‡_ wewµqv n‡j N H2 Gi mv‡_ wewµqv n‡j 24. dzUš� B_vbwqK Gwm‡Wi ms‡M †K¬vwib wewµqv

K‡i Kx Drcbœ K‡i ? K CH5COCl L CH3COCl2 M ClCH2COOH

N Cl2CHCOOH 25. GK †gvj Kcvi mwÂZ n‡Z Kx cwigvY

B‡jKUªb jv‡M ? K 2 †gvj B‡jKUªb L 1 †gvj B‡jKUªb M 1wU B‡jKUªb N 2wU B‡jKUªb 26. AvB‡mv‡Uv‡ci †¶‡Î mgvb bq †Kvb&wU ? K fi msL¨v L cvigvYweK msL¨v M B‡jKUªb msL¨v N ivmvqwbK ag©

27. 2311Na+ †Z B‡jKUª‡bi msL¨v KZ ?

K 11 L 10 M 12 N 23 28. A¨vwmwUwjb I †ebwR‡bi ¯’ �j ms‡KZ †Kvb&wU

? K C6H6 L CH M C2H2 N C4H4

29. mvjdvi UªvBA·vB‡W mvjdv‡ii †hvRbx KZ ?

K 2 L 4 M 6 N 8 30. †d‡iv‡mv‡dwiK A·vB‡Wi ms‡KZ †Kvb&wU ? K Fe2O3 L FeO M Fe3O2 N Fe3O4

31. GK MÖvg nxi‡K KqwU Kve©b cigvYy we`¨gvb ?

K 5.02×1022wU L 3.34×1022wU M 1.99×10-23wU N 2.99×10-22wU 32. GK †gvj Aw·‡Rb M¨vm ej‡Z eySvq ⎯ K 16 MÖvg Aw·‡Rb L 8 MÖvg Aw·‡Rb M 18 MÖvg Aw·‡Rb N 32 MÖvg Aw·‡Rb 33. H2SO4 Gi GKwU AYyi fi KZ ? K 1.63×10-22g L 1.67×10-24g M 1.63×1022g N 1.67×1024g 34. wecixZ AbycvZ m�ÎwU †K cÖKvk K‡ib ? K cÖvDm L Wvëb M wiKUvi N †Mjym¨vK 35. †fŠZ cwieZ©b †Kvb&wU ? K nvB‡Wªv‡R I Aw·‡R‡bi ms‡hv‡M cvwb

ˆZix L Rjxq ev®• Lye VvÊv K‡i eid ˆZix M †gvgevwZ R¡vjv‡bv N cvwbi Zwor we‡k−lY

DËigvjv 1 M 2 N 3 N 4 K 5 L 6 L 7 M 8 K 9 L 10 M 11 M 12 L 13 N 14 K 15 L 16 M 17 N 18 L 19 N 20 K 21 L 22 M 23 N 24 M 25 K 26 K 27 L 28 L 29 M 30 N 31 M 32 N 33 K 34 M 35 L

†evW© cix¶vi cªkœ I DËi : ˆbe© w³K

w`bvRcyi †evW©

†evW© cix¶vi cªkœ I DËi : ˆbe© w³K h‡kvi †evW©


29. h‡kvi †evW©-2009 imvqb : ˆbe© w³K cÖkœ mgq-35 wgwbU; c �Y©gvb -35


1. †Kvb&wU we‡ùvi‡Y D”P kã m„wó nq ? K A¨vwmwUwjb L gvK©vix dzjwg‡bU M Aw·‡Rb N I‡Rvb 2. wb‡Pi †Kvb& wewµqvwUi mvg¨ve¯’vi Dci

Pv‡ci †Kvb cÖfve †bB ? K N2(g)+3H2(g) HoooI 2NH3(g) L 2SO2(g)+O2(g) HoooI 2SO3(g) M N2(g)+O2(g) HoooI 2NO(g) N 2H2(g)+O2(g) HoooI 2H2O(g) 3. †nevi-em c×wZ‡Z NH3-Gi ms‡k−l‡Y

cÖfveK D‡ËRK wn‡m‡e †Kvb&wU eëüZ nq ? K Fe P�Y© L Ni P�Y© M KOH Ges Al2O3 N V2O5

4. wb‡Pi †Kvb& †gŠjwUi cÖZx‡K "T" †bB ? K †_wjqvg L †_vwiqvg M †Ujywiqvg N wUb 5. †h cv‡Î Zwor we‡k−lY Pvjv‡bv nq Zv‡K Kx

ejv nq ? K Zwor we‡k−l¨ †Kvl L Zwor Øvi M Kv‡Pi cvÎ N Zvgvi cvÎ 6. wb‡Pi †Kvb& ‡jv KvV Ges †K‡ivwm‡bi cÖavb

Dcv`vb ? K Kve©b Ges Aw·‡Rb L Aw·‡Rb Ges bvB‡Uªv‡Rb M nvB‡Wªv‡Rb Ges Aw·‡Rb N Kve©b Ges nvB‡Wªv‡Rb 7. wkLv cix¶vq GKwU avZzi jeY meyRvf bxj

eY© aviY K‡i| jeYwU‡Z †Kvb& avZz we`¨gvb ?

K Ca L Cu M K N Na 8. †Kvb& AvqbwU ejq cix¶v cÖ k©b K‡i ? K Cl- L NO3

-

M CO32- N SO4

2-

9. wb‡Pi †Kvb&wU †ebwR‡bi ¯’ �j ms‡KZ ? K C6H6 L CH2 M CH2O N CH 10. †Kvb&wU Dfagx© A·vBW ? K CO L CO2 M SO3 N Al2O3 11. †Kvb&wUi eY© wd‡K njy ? K Cl2 L Br2 M I2 N F2 12. A¨vjKvBj n¨vjvBW‡K A¨vj‡Kvnjxq NaOH

`ªe‡Yi mv‡_ DËß Ki‡j Kx Drcbœ nq ?

K A¨vjwKb L A¨vj‡Kb M A¨vj‡Kvnj N G÷vi 13. †Kvb&wU †hŠM ? K SO3 L SO4 M NH4 N CO3 14. wb‡Pi †Kvb&wU CO2 AYyi MVb ? K PZz¯�jKxq L †KŠwYK M wcivwgWxq N mij îwLK 15. cvwbi AYy‡Z KZwU gy³ †Rvo B‡jKUªb i‡q‡Q

? K wZb L `yB M Pvi N GK 16. cÖ_g Ae¯’vq ch©vqmviYx‡Z †gŠjmg�‡nK

mvRv‡bv n‡qwQj wK‡mi wfwË‡Z ? K cvigvYweK msL¨v Abymv‡i L cvigvYweK fi Abymv‡i M cvigvYweK AvKvi Abymv‡i N cigvYyi B‡jKUªb web¨vm Abymv‡i 17. wb‡Pi †Kvb&wU me‡P‡q †ewk mwµq ? K Ne L Cl M I N F 18. †Kvb&wU ms‡k−lY wewµqv bq ? K CaO+CO2 = CaCO3 L 2Na+Cl2 = 2NaCl M C+O2 = CO2 N 2H2+O2 = 2H2O 19. A¨vj‡Kvnjxq cvbxq ˆZwi‡Z †Kvb&wU eëüZ

nq ? K CH3COOH L CH3CH2OH M CH3OH N C3H7OH 20. weï× B_vbwqK GwmW‡K Kx e‡j ? K diwgK GwmW L mvBwUªK GwmW M UviUvwiK GwmW N M −vwmqvj GwmwUK GwmW 21. †Kvb&wU †gŠwjK KwYKv bq ? K wbDUªb L †cÖvUb M nvB‡Wªv‡Rb cigvYy N B‡jKUªb 22. wb‡Pi †Kvb&wU AwaKZi „pZv cÖ k©b K‡i ? K †c‡Uªvj L †K‡ivwmb M jeY N †fvR †Zj 23. Òc`v_© wbiwew”Qbœ, Zv‡K hZ B”Qv ¶z`ªZg

As‡k fvM Kiv hvqÓ⎯Gi cÖe³v †K ? K Wvëb L A¨vwi÷Uj M †W‡gvwµUvm N cÖvDm

24. S.T.P †Z O2 M¨v‡mi NbZ¡ KZ ? K 1.43 g/litre L 22.4 g/litre M 1.99×10-23 g/itre N 3.95 g/litre 25. †Mvì †K¬vivB‡Wi AYy MV‡b GK cigvYy

†Mv‡ìi mv‡_ KZ cigvYy †K¬vwib hy³ n‡Z cv‡i ?

K 2 L 5 M 1 N 3 26. K+ Gi B‡jKUªb web¨vm nj⎯ K 2, 8, 8, 3 L 2, 8, 8, 2 M 2, 8, 8 N 2, 8, 8, 1 27. wUªwUqv‡g wbDUª‡bi msL¨v KZ ? K 2 L 1 M 3 N 0 28. wb‡Pi †Kvb&wU Zwor Awe‡k−l¨ ? K Kcvi mvj‡dU L †mvwWqvg †K¬vivBW M Awjqvg N M −y‡KvR 29. eZ©gvbKv‡j mKj ai‡bi kw³i Avš�R©vwZK

GKK wn‡m‡e M„nxZ n‡q‡K †Kvb&wU ? K K¨vjwi L Ryj M wK‡jvK¨vjwi N KJ/†gvj 30. ÒM¨v‡jbvÓ AvKwiKwU †_‡K †Kvb& avZzwU

wb®‹vkb Kiv nq ? K Fe L Pb M Cu N Zn 31. wPwji gi“f �wg‡Z LwbR jeY wn‡m‡e †Kvb&wU

cvIqv hvq ? K mëwcUvi L †ngvUvBU M e·vBU N K¨vjvgvBb 32. A¨v‡fv‡M‡Wªv msL¨v gvb n‡”Q ⎯ K 1.66×10-24 L 6.02×1023

M 6.02×10-23 N 6.02×10-28

33. kxZj I ga¨g Mvp bvBwUªK Gwm‡Wi mv‡_ wRs‡Ki wewµqvq †Kvb&wU cvIqv hvq ?

K NO2 L N2O M NO N N2O4 34. A¨vjywgwbqvg A·vB‡Wi MjbvsK cÖvq⎯ K 900°C L 950°C M 2050°C N 1000°C 35. GK †gvj cvwbi fi KZ ? K 18g L 18 M 9g N 2.99×10-23g

DËigvjv

1 L 2 M 3 M 4 N 5 K 6 N 7 L 8 L 9 N 10 N 11 N 12 M 13 K 14 N 15 L 16 L 17 N 18 K 19 L 20 N 21 M 22 M 23 L 24 K 25 N 26 M 27 K 28 N 29 L 30 L 31 K 32 L 33 K 34 M 35 K

30. h‡kvi †evW©-2008 imvqb : ˆbe© w³K cÖkœ


1. wb‡gœi †KvbwU Zwor Awe‡k−l¨ ? K Lv`¨ jeY L mvjwdDwiK

GwmW

M Kcvi mvj‡dU N wPwb 2. †KvbwU Kve©‡bi iƒc‡f` bq ? K nxiK L Kve©b g‡bv·vBW

M fymv Kqjv N MÖvdvBU 3. PbI2 Gi iO Kx ? K jvj L †e¸bx M †mvbvjx N njy 4. wb‡gœi †Kvb avZz wkLv cix¶vq eY© †`Lvq

? K Mg L Cu M Al N Fe 5. cvwbi Zwor we‡k−l‡Yi gva¨‡g A¨v‡bv‡W

32% Aw·‡Rb M¨vm m„wói Rb¨ KZ PvR© ìKvi ?

K 4F L 3F M 2F N 1F 6. ch©vq mviwYi 6ô ch©v‡q KZwU †gŠj Av‡Q

? K 32 L 18 M 8 N 2 7. wb‡Pi †KvbwU Dfagx© A·vBW ?

K CuO L CO M CrO3 N ZnO 8. wb‡Pi †KvbwUi ’�jms‡KZ I AvYweK

ms‡KZ Awfbœ ? K †ebwRb L B‡_b

M wg‡_b N M −y‡KvR 9. ivmvqwbK wewµqvi Rb¨ wb‡Pi †KvbwU

AZ¨vek¨K ? K Zvc L ms¯•k© M Av‡jv N cÖfveK 10. S2 Avq‡b †cÖvU‡bi msL¨v nj ⎯

K 12 L 14 M 16 N 18 11. wb‡gœi †Kvb †hŠMwU A¨vjwKb ? K C4H8 L C4H10 M C4H6 N C4H4 12. wRi‡Kvwbqvg †gŠ‡ji bvg †Kvb fvlv †_‡K

G‡m‡Q ? K j¨vwUb L Aviex M Bs‡iRx N divwm 13. Zn + CuSO4 → ZnSO4 + Cu

wewµqvq †KvbwU RvwiZ n‡q‡Q ?

K Cu L Cu2+

M Zn2+ N Zn 14. wµcU‡bi †kl K¶c‡_ KqwU B‡jKUªb Av‡Q

? K 4 L 8 M 6 N 2 15. N T.P †Z 44g CO2 Gi AvqZb KZ

? K 22.4 wjUvi L 224 wjUvi M 2240 wjUvi N 22400 wjUvi 16. †KvqvU©R Kx ? K mvjdv‡ii weï×iƒc L Kve©‡bi weï×iƒc M wmwjK‡bi weï×iƒc N wmwjKvi weï×iƒc 17. †Kvb MÖ“‡ci avZz¸‡jvi Rb¨ Kve©b

weRviY c×wZ cÖ‡hvR¨ ? K Na, Zn, Cu L Mg, Al, Pb M Zn, Pb, Fe N Ca, Mg, Al 18. wb‡Pi †Kvb avZzwU mwµqZv wmwi‡R mevi

wb‡P ? K Cu L Al M Zn N K 19. bxjv Gi cÖavb Dcv`vb Kx ? K PbO2 L ZnO M AuCl3 N Al2O3

20. wb‡Pi †KvbwU cvwb‡Z Av‡qvwW‡bi ªeYxqZv e„w× K‡i ?

K KCl L KBr M KI N AgNO3

21. A¨vjywgwbqv‡gi †hvRbx KZ ? K 1 L 3 M 2 N 4 22. †Wwb‡qj †Kv‡li FYvZ¥K cÖvš� Kx ? K Kcvi `Ê L wR¼ `Ê M Kve©b `Ê N c −vwUbvg `Ê 23. Zvcnvix wewµqvi Rb¨ wb‡Pi †KvbwU mZ¨ ? K eÜb fv½vi cÖ‡qvRbxq kw³ >

eÜb m„wó‡Z wbM©Z kw³ L eÜb fv½vi cÖ‡qvRbxq kw³ <

eÜb m„wó‡Z wbM©Z kw³ M eÜb fv½vi cÖ‡qvRbxq kw³ =

eÜb m„wó‡Z wbM©Z kw³ N eÜb m„wó‡Z wbM©Z kw³ > eÜb

fv½vi cÖ‡qvRbxq kw³ 24. A¨vj‡Kvn‡ji Kvh©Kixg�jK n‡”Q ⎯ K – OH L – COOH M – COOR N – CHO 25. †Zj I Pwe© n‡”Q ⎯

K A¨vj‡Kvnj L d¨vwU Gwm‡Wi jeY M wM−mvwib N G÷vi 26. K…wÎg wN ˆZwi‡Z †Kvb cÖfveKwU eëüZ nq

? K Pt L Ni M Ti N V2O5

27. †Kvb †hŠMwUi ev®• NbZ¡ 32 ?

K NO2 L CO2 M KO2 N SO2

28. ivev‡ii fjKvbvBwRs Ki‡Z †Kvb †gŠjwU eëüZ nq ?

K wmwjKb L Kve©b M mvjdvi N bvB‡Uªv‡Rb 29. GKwU †gŠ‡ji B‡jKUªb web¨vm 2, 8, 18,

4, 2 ch©vq-mviwY‡Z Zvi Ae¯’vb ⎯ K 5g ch©v‡q II MÖ“‡c L 4_© ch©v‡q II MÖ“‡c M 3q ch©v‡q II MÖ“‡c N 6ô ch©v‡q II MÖ“‡c 30. wb‡Pi †KvbwUi Avš�tAvYweK kw³ Kg ? K cvwb L cv_i M bvB‡Uªv‡Rb N mvaviY jeY 31. GKwU wbDUª‡bi Avmj fi n‡”Q ⎯ K 1.675 × 10–24g L 1.67 × 10–2g M 8.11 × 10–28g N 9. 11 × 10–24g 32. AvqZb wnmv‡e cvwb‡Z Aw·‡Rb I

nvB‡Wªv‡Rb AbycvZ KZ ? K 8 t 1 L 1 t 8 M 2 t 1 N 1 t 2 33. M¨vm AvqZb m�Î †K Avwe®‹vi K‡ib ? K Wvëb L †M jym¨vK M wiKUvi N cÖvDm 34. CH2 = CH – CH2 – CH3 †hŠMwUi bvg Kx

?

K 1- weDwUb L 2- weDwUb M 3- weDwUb N weD‡Ub 35. †Kvb avZzwU NaOH Gi mv‡_ wewµqv

K‡i bv ? K Zn L Pb M Fe N Al

DËigvjv 1 N 2 L 3 N 4 L 5 K 6 K 7 N 8 M 9 L 10 M 11 K 12 L 13 N 14 L 15 K 16 N 17 M 18 K 19 N 20 21 L 22 L 23 K 24 K 25 N 26 L 27 N 28 M 29 K 30 M 31 K 32 N 33 L 34 K 35 M



1. jvwds M¨vm †KvbwU? K NO L NO2 M N2O N N2O4 2. wb‡Pi †KvbwU mwµqZv µg Abymv‡i

mvRv‡bv Av‡Q? K K, Zn, Ag, Na L K, Ag, Cu, Zn M K, Cu, Ag, Zn N K, Zn, Cu, Ag 3. †KvbwU nvB‡Wªv‡RvwqK Gwm‡Wi MvVwbK

ms‡KZ? K H – N = N = N L H – N =N ≡ N M N = N = N – H N N = N = H = N 4. M −yevi jeY ejv nq †KvbwU‡K? K Na2CO3 L Na2SO4 M Na2CO3.10H2O N Na2SO4.10H2O 5. cvwbi GKwU AYy‡Z wbtm½ B‡jKUªb

†Rvo KqwU? K `yBwU L GKwU M wZbwU N PviwU 6. ‰Re Gwm‡Wi wµqvkxj g�jK n‡”Q⎯ K –CH3 L –OH M –C2H5 N –COOH 7. Mvp mvjwdDwiK Gwm‡Wi mv‡_ AwaK

cwigvY B_vb‡ji wewµqvq †KvbwU Drcbœ nq?

K C2H4 L C2H5– O–C2H5 M CH3 CHO N CH3COOH 8. Bu yi gvivi wel Zwi‡Z †KvbwU eëüZ nq? K dmdivm L mvjdvi M †mvwWqvg N cUvwkqvg 9. Aw·‡R‡bi GK †gvj AYy n‡”Q⎯ K 16 L 32 MÖvg M 32 N 1.66 × 10-24

MÖvg 10. ejq cix¶v cÖ k©b K‡i †KvbwU? K SO4 L CO3 M NO3 N Cl2

11. †KvbwUi `ªeY wf‡bMvi bv‡g cwiwPZ? K HCOOH L C2H5COOH M CH3COOH N H2S2O7

12. mKj avZzi †Kvb jeY cvwb‡Z `ªeYxq? K Kve©‡bU L mvj‡dU M bvB‡UªU N dm‡dU

13. Mg2+ Gi B‡jKUªb web¨vm †KvbwU?

K 2,8 L 2, 8, 2 M 2, 8, 4 N 2, 8, 6 14. †KvbwU kw³kvjx RviK? K KMnO4 L H2C2O4 M H2SO4 N MnSO4 15. Zvc ivmvqwbK mgxKi‡Y cÖgvY ZvcgvÎv

n‡”Q⎯ K 0°C L 25°C M 100°C N 298°C 16. cÖgvY ZvcgvÎv I Pv‡c A¨v‡gvwbqv

M¨v‡mi ev®• NbZ¡ KZ? K 8.5 L 9.0 M 14 N 17 17. wb‡Pi †KvbwU AwebvwkZvev` m�Î? K gnvwe‡k¦ †gvU fi I kw³i cwigvY

mgvb bq L Zvc I kw³ †kvl‡Yi gva¨‡g †Kvb

†gŠj Ab¨ †gŠ‡j cwiYZ nq M mKj wewµqv‡Z wewµqK I Drcbœ

e¯� yi fi mgvb N mKj wewµqv E = mc2 m�Î †g‡b

P‡j

18. Mjbv¼, ùzUbv¼ Ges NbZ¡ n‡”Q c`v‡_©i ⎯

K †fŠZ ag© L ivmvqwbK ag© M †fŠZ-ivmvqwbK ag© N †KvbwUB bq 19. †jLvi Kvwj‡Z †KvbwU eëüZ nq? K ZnSO4.7H2O L Al2(SO4)3 2H2O M FeSO4. 7H2ON CuSO4. 5H2O 20. †Kvb M¨v‡mi eY© ev`vgx? K CO2 L CO M NO2 N NO– 21. CuO + C = Cu + CO – G wewµqvwU

⎯ K we‡hvRK L cÖkgb M mgvYyKiY N RviY-weRviY 22. mvaviY je‡Yi MYbv¼ KZ? K 801°C L 1465°C M 1200°C N 895°C 23. evB‡ii Pv‡ci Dci wbf©i K‡i †KvbwU? K Mjbv¼ L wngv¼ M ùzUbv¼ N meKqwU 24. B_vBj G¨vwm‡U‡Ui ms‡KZ †KvbwU?

K CH3COOCH3CH2 L CH3COOCH2CH3 M CH3COOCH2CH2 N CH3COOCH3CH 25| †KvbwU weiÄK wn‡m‡e eëüZ nq? K CO2 L SO2 M NO2 N P2O5

26. nb n‡”Q⎯ K †Kvb wKQy‡K Av¸‡b †cvov‡bv L evZv‡mi Aw·‡R‡bi mv‡_ †Kvb

wKQyi wewµqv M †gvgvevwZ †cvov‡bv N evZvm I Aw·‡R‡bi wewµqv 27. †KvbwUi AèZ¡ me‡P‡q †ewk? K Na2O L Al2O3 M SO3 N MgO 28. Kv÷ ev XvjvB †jvnvq kZKiv KZ fvM

Kve©b _v‡K? K 0.1 − 0.25%L 4% M 0.15 − 1.5%N 4.5 − 6.0% 29. †Kvb †hŠMg�jKwU abvÍK? K CrO4 L SO4 M PO4 N NH4 30. †mvwWqvg †n·vd¬z‡iv A¨vjywg‡bU Gi

evwYwR¨K bvg wK? K e·vBU L µvBIjvBU M K¨vjvgvBb N M¨v‡jbv 31. †KvivÛvg bv‡g cwiwPZ †KvbwU? K Al2O3 L AlCl3 M Al(OH)3 N Al(NO3)3 32. ch©vq mviYxi †Kvb ch©v‡q cvigvYweK

msL v hZB e„w× cvq cigvYyi AvKvi ZZ⎯

K e„w× cvq L n«vm cvq M w¯’i _v‡K N ùxZ nq 33. AvqwbK eÜ‡bi aviYv †`b †K? K †gvm‡j L †g‡Ûwjd M †Kv‡mj N cÖvDm 34. mvjdv‡ii GKwU AYy‡Z KqwU cigvYy

Av‡Q? K 4wU L 8wU M 1wU N 2wU 35. mg‡hvRx †hŠM †KvbwU? K MgCl2 L NaCl M AlCl3 N PCl3

DËigvjv

1 M 2 N 3 L 4 N 5 K 6 N 7 L 8 K 9 L 10 M 11 M 12 M 13 K 14 K 15 L 16 K 17 M 18 K 19 M 20 M 21 N 22 K 23 M 24 L 25 L 26 L 27 M 28 L 29 N 30 L 31 K 32 L 33 M 34 L 35 N



1. cÖgvY ZvcgvÎv I Pv‡c 16g Aw·‡Ri M¨v‡mi AvqZb KZ ?

K 16 wjUvi L 22.4 wjUvi M 11.2 wjUvi N 32 wjUvi 2. GK †gvj cvwb ˆZwi‡Z GK †gvj

nvB‡Wªv‡Rb M¨vm KZ †gvj Aw·‡Rb M¨v‡mi mv‡_ wewµqv K‡i ?

K A‡a©K †gvj L GK †gvj M `yB †gvj N wZb †gvj 3. †Kvb †hŠMwUi ¯’ �jms‡KZ I AvYweK

ms‡KZ GKB ? K M −y‡KvR L cvwb M †ebwRb N nvB‡Wªv‡Rb cviA·vBW 4. wR¼ cÖK…wZ‡Z wK wnmv‡e _v‡K ? K †gŠj L mvjdvBW M †K¬vivBW N bvB‡UªU 5. †Kvb je‡Yi `ªe‡Y NH4OH I NH4Cl

†hvM Kivq mv`v †Rjxi gZ Aat‡¶c c‡o?

K †mvwWqvg L Kcvi M K¨vjwmqvg N G¨vjywgwbqvg 6. cix¶vMv‡i wKfv‡e CO2 M¨vm msMÖn Kiv nq

? K cvwbi wbægyLx AcmviY Øviv L evqyi wbægyLx AcmviY Øviv M evqyi EaŸ©gyLx AcmviY Øviv N GKwUI bv 7. FeCl2 †hŠ‡M Avqi‡bi myß‡hvRbx KZ

? K k�b¨ (0) L GK M `yB N wZb 8. cÖkgb Zv‡c KZ †gvj cvwb Drcbœ nq ? K GK L `yB M wZb N Pvi 9. `ªeY Zv‡ci gvb †KvbwUi Dci wbf©ikxj

? K Pvc L c`v‡_©i Ae¯’v M `ªve‡Ki cwigvY N `ªve‡Ki NbgvÎv 10. †gŠjmg�‡ni ch©vqe„Ë ag© †KvbwU ? K †hvRbx L AèZ¡ M ¶viZ¡ N `ªeYxqZv 11. n¨v‡jv‡R‡bi Dcw¯’wZ mbv³Ki‡Y †Kvb

avZz e¨eüZ nq ? K Cu L Ag

M Na N Ca 12. Ca(H2PO4)2 AYywU‡Z cigvYyi msL¨v KqwU

? K 28 L 15 M 30 N 32 13. mv‡jvK ms‡k−lY cÖwµqvq GK †gvj

M−y‡KvR Drcbœ Ki‡Z KZ †gvj CO2 Gi cÖ‡qvRb nq ?

K wZb L cvuP M Qq N mvZ 14. S2– Gi B‡j±ªb web¨vm †KvbwU ? K 2, 8, 2 L 2, 8, 4 M 1, 8, 6 N 2, 8, 8 15. †Kvb †hŠMwU ˆRe †hŠM ? K (NH4)2CO3 L H2N – CO – NH2 M NH4CNO N NH4H2CO3

16. CaCl2 G †K¬vwi‡bi mwµq †hvRbx KZ ? K k�b¨ L GK M cvuP N `yB 17. †KvbwU RviK c`v_© bq ? K O2 L Na M F2 N Br2 18. A¨v‡gvwbqvi GKwU AYy‡Z bvB‡Uªv‡R‡bi

wbtm½ B‡jKUªb †Rvo KqwU ? K `yBwU L GKwU M wZbwU N k�b¨wU 19. KZ mv‡j imvqbwe` cÖvDm w¯’ivbycvZ

m�ÎwU cÖKvk K‡ib ? K 1799 L 1774 M 1792 N 1803 20. wb‡æi wewµqvq †Kvb c`v_©wU RvwiZ n‡q‡Q

? H2S + Cl2 = S + 2HCl K Cl2 L H2S M S N HCl 21. vu‡Zi wPwKrmvq †KvbwU e¨eüZ nq ? K CuSO4. 5H5O L CaO M ZnO N MnSO4.7H2O 22. c−vwUbvg ZworØvi I †mvwWqvg †K¬vivB‡Wi

jNy ªe‡Yi Zwor we‡k−lY K¨v‡_v‡W wK Drcbœ nq ?

K Na L Cl2 M H2 N O2

23. wb‡æi †Kvb †gŠ‡ji A·vBW m‡e©v”P MjbvsK wewkó ?

K Kve©b L wmwjKb M mvjdvi N dmdivm 24. Cu(II) †hŠMmg�‡ni mvaviY eY© †KvbwU

? K bxj ev njy` L meyR ev bxj M meyR ev njy N meyR ev jvj 25. †KvbwU wØjeY ? K cUvm Gjvg L Bcmg jeY M e −y-wfwUªIj N meyR wfwUªIj 26. †KvbwUi weRviY Av‡M NU‡e ? K Zn2+ L Cu2+

M H+ N Na+

27. eb¯•wZ wN ev WvjWvi g‡a¨ †Kvb eÜb we`¨gvb ?

K Kve©b-Kve©b GKK eÜb L Kve©b-Kve©b wØ-eÜb M Kve©bÑKve©b wÎ-eÜb N †KvbwUB bq 28. A¨vjKvBj g�j‡Ki †hvRbx KZ ? K wZb L `yB M GK N GK I wZb 29. H2O2 Gi we‡qvR‡b †KvbwU abvZ¥K

cÖfveK wnmv‡e KvR K‡i ? K H3PO4 L SiO2 M H2SO4 N C3H8O3 30. STP-‡Z 44g CO2 G AYyi msL¨v KZ ? K 6.023×1022 wU L 6.023×1023 wU M 6.023×1024 wU N 6.023×1021 wU 31. †Kvb A·vBWwU Aèagx© ? K Na2O L Al2O3 M CaO N P2O5

32. †Kvb †gŠjwUi cvigvYweK AvKvi †QvU ? K Na L S M Rb N Mg 33. C5H12 Gi Øviv MwVZ m¤¢ve¨ mgvYyi

msL¨v KqwU ? K 2wU L 3wU M 4wU N 5wU 34. 0.1 †gvj cvwb KZ MÖv‡gi mgvb ? K 18g L 180g M 0.18g N 1.8g 35. cUvwmqv‡gi N †k‡j KqwU B‡jKUªb Av‡Q

? K 1wU L 2wU M 6wU N 8wU

DËigvjv 1 M 2 K 3 L 4 L 5 N 6 M 7 L 8 K 9 M 10 K 11 M 12 L 13 M 14 N 15 L 16 L 17 L 18 L 19 K 20 L 21 M 22 M 23 L 24 L 25 K 26 L 27 K 28 M 29 L 30 L 31 N 32 L 33 L 34 N 35 K



1. wkLv cix¶vq †mvwWqv‡gi D¾¡j †mvbvjx njy wkLv †Kvb& Kv‡Pi wfZi †`Lv hvq bv?

K †Kvevë KvP L bxj †Kvevë KvP M †h †Kvb KvP N Gw›Ugwb KvP 2. KvM‡Ri IRb e„w× I KvMR gm„Y

Ki‡Z eëüZ nq †Kvb&wU? K CaSO4. (H2O)2 L (CaSO4)2. H2O M CaSO4. 2H2O N CaSO4

3. wf‡bMvi wnmv‡e †Kvb& GwmW eëüZ nq? K mvjwdDwiK GwmW L wg_vbwqK GwmW M B_vbwqK GwmW N A¨v‡mwUK GwmW 4. †Kvb&wU ¯Ztù‚Z© cÖwµqv? K eªvDbxq MwZ L AvYweK fi MYbv M e¨vcb N cvigvYweK fi 5. IwjK Gwm‡Wi ms‡KZ †Kvb&wU? K C15H31COOH L C17H35COOH M C17H33COOH N CH3COOH 6. A¨v‡fv‡M‡Wªv msL¨vi gvb KZ? K 6.02×1023 L 1.66×10–24

M 2 N 22.4 7. cUvwmqvg †K¬v‡iU †_‡K Aw·‡Rb Drcbœ

Ki‡Z †Kvb&wUi cÖ‡qvRb? K `ªeY L Zvc M Pvc N Av‡jvK 8. evqygÛ‡j fi wn‡m‡e Aw·‡R‡bi cwigvY

KZ? K 49.0% L 78.0% M 21.0% N 23.0% 9. Zvc ivmvqwbK mgxKi‡Yi cÖgvY ZvcgvÎv

n‡”QÑ K 0K L 25 K M 100 K N 298 K 10. cvwbi wngvsK KZ? K 100°C L 0°C M 273°C N 801°C 11. AvaywbK imvq‡bi cÖwZôvZv †K? K A¨vwi÷Uj L bxjm †evi M P¨vWDBK N Rb Wvëb 12. ms‡KZ fi †Kvb&wU?

K cvigvYweK fi L AvYweK fi M AvYweK msL¨v N fi msL¨v 13. GKwU cigvYyi e¨vmÑ K 108 †mt wgt L 10–8 †mt wgt M 10–6 †mt wgt N 106 †mt wgt 14. cvwbi Zwor we‡k−l‡Y †Kvb& wewµqvwU

K¨v‡_v‡W N‡U? K O + O → O2

L OH– → OH+e–

M 2H + + 2e– → H2

N 4OH– → 2H2O + O2 + 4e–

15. †mvwWqv‡gi mv‡_ †Kvb& †gŠjwUi a‡g©i wgj Av‡Q?

K Cu L Ca M K N Al 16. µzwmej wK‡mi ˆZwi? K †jvnvi L gvwUi M PxbvgvwUi N Kv‡Pi 17. ú¨v‡KW jvBg ejv nq †Kvb&wU‡K? K CaO L CaCO3 M CaCl2 N Ca(OH)2 18. †hŠM g�jK †Kvb&wU? K N2O5 L P2O5 M SO3 N Al2O3

19. †cÖvjs hš � †Kvb& avZz wb®‹vk‡b eëüZ nq?

K Fe L Cu M Al N Zn 20. Cl–Cl eÜb fvO‡Z KZ wK‡jv-Ryj

kw³i cÖ‡qvRb? K 244 L 414 M 326 N 431 21. A¨v‡gwbqvi wk‡ívrcv`‡b wK cwigvY

Zvckw³ Drcbœ nq? K 92 kJ L 192 kJ M 286 kJ N 1569 kJ 22. ¶vi avZzmg�‡ni nvB‡Wªv·vB‡Wi mvaviY

ms‡KZ †Kvb&wU? K M2OH L M(OH)2 M MOH N M2(OH)3

23. wPwb, KvMR cÖf…wZ‡Z †Kvb& GwmW w`‡j mv‡_ mv‡_ Kv‡jv nq?

K H2SO4 L HNO3 M HCl N H2CO3

24. óvP© Gi ms‡KZ †Kvb&wU? K (C6H10O5)n L C6H12O6

M n(C6H10O5) N C12H22O11

25. †Kvb& †hŠMwUi ev®• NbZ¡ 22? K N2O5 L SO2 M CO2 N NO2

26. wWD‡Uwiqv‡gi fi msL¨v KZ? K 1 L 2 M 3 N 4 27. †Kvb&wU kw³ bq? K Zvc L Av‡jv M we y r N evZvm 28. †Kvb& iwk¥i mvnv‡h¨ AYyi AvK…wZ wba©viY

Kiv n‡q‡Q? K †ZRw®Œq iwk¥ L Avjdv iwk¥ M Mvgv iwk¥ N iÄb iwk¥ 29. cÖwZ 10°C ZvcgvÎv e„w×‡Z wewµqvi

MwZ KZ ¸Y e„w× cvq? K 2 ¸Y L 3 ¸Y M 4 ¸Y N 5 ¸Y 30. wg‡_b I †K¬vwib cÖLi m�hv©‡jv‡K wK Drcbœ

K‡i? K C6H12O6 I HCl L CH4 I HCl M C I HCl N CH3Cl I HCl 31. ¶vi avZzmg �‡ni †hvR¨Zv KZ? K 4 L 3 M 2 N 1 32. KZ GU‡gvmwdqvi Pv‡c Bw_b‡K Zvc

w`‡j Zv c −vw÷‡K cwiYZ nq? K 200 atm L 100 atm M 70 atm N 50 atm 33. jeY I evwji wgkÖ‡Y je‡Yi Dcw¯’wZ

mbv³ Ki‡Z †Kvb&wU eëüZ nq? K AgCl L AgNO3 M BaCl2 N Ba(NO3)2

34. c −vwUbv‡gi cÖZxK †Kvb&wU? K Pl L Po M Pt N Pu 35. j¨vb‡Wvë Gi cix¶vwU ivmvqwbK

ms‡hvM m�‡Îi †Kvb& m�Î‡K mg_©b K‡i? K w¯’ivYycvZ m�Î L ¸YvbycvZ m�Î M M¨vm AvqZb m�Î N f‡ii wbZ¨Zvi myÎ

DËigvjv

1 L 2 N 3 N 4 M 5 M 6 K 7 L 8 M 9 N 10 L 11 N 12 L 13 L 14 M 15 M 16 M 17 N 18 M 19 N 20 K 21 K 22 M 23 K 24 K 25 M 26 L 27 N 28 N 29 K 30 M 31 N 32 L 33 L 34 M 35 N



1. Avš�tAvYweK kw³ e¯‘i wK‡mi Dci wbf©i K‡i ?

K cÖ‡¯’i Dci L ˆ`‡N© i Dci M cÖK…wZi Dci N gva¨‡gi Dci 2. GKwU †hŠwMK c`v‡_©i ¶z`ªZg Ask

ZviÑ K AYy L cigvYy M †cÖvUb N B‡jKUªb 3. A¨v‡fv‡M‡Wªv msL¨v‡K †Kvb cÖZxK Øviv

cÖKvk Kiv nq ? K Z L M M n N N 4. †KvbwU M −y‡Kv‡Ri ¯’ �j ms‡KZ ? K CH2O L C6H12O6 M CHO N C2H4O2 5. Zn + H2SO4 = ZnSO4 + H2

wewµqvwU‡Z wRs‡Ki †hvRbx KZ ? K GK L `yB M wZb N Pvi 6. cigvYy‡Z kw³¯�‡ii aviYv †`b †K ? K iv`vi‡dvW© L bxjm †evi M g¨v·I‡qj N P¨vWDBK 7. iv`vi‡dvW© wbDwK¬qvm Avwe®‹vi K‡ibÑ K 1930 L 1932 M 1832 N 1911 8. †Kv‡mj KZ wLª÷v‡ã AvqwbK eÜ‡bi

aviYv †`b ? K 1915 L 1916 M 1917 N 1918 9. wg‡_b AYyi AvK…wZ wKiƒc nq ? K PZz¯�jKxq L ˆiwLK M †KŠwYK N wcivwgWxq 10. †mvbvi cvigvYweK msL¨v KZ ? K 89 L 69 M 59 N 79 11. ch©vq mviwY‡Z Al-Gi Ae¯’vb n‡”QÑ K MÖ“c IA L MÖ“c IIA M MÖ“c IIIA N MÖ“c IVA 12. CaO + CO2 = CaCO3 GwU †Kvb

ai‡bi wewµqv ? K ms‡k−lY L cÖkgb M ms‡hvRb N RviY-weRviY

13. NaOH + HCl = NaCl + H2O wewµqvwU n‡”QÑ

K cÖkgb L mgvYyKiY M cÖwZ¯’vcb N cvwb‡hvRb 14. CuO + H2 = Cu + H2O wewµqvwU‡Z

†KvbwU weRviK ? K Cu L CuO M H2 N H2O 15. ivmvqwbK mvg¨ve¯’v njÑ K MwZgq mvg¨ve¯’v L w¯’wZgq mvg¨ve¯’v M DfgyLx N GKvwfgyLx 16. mvjdvi UªvB-A·vBW Drcv`‡b e¨eüZ

cÖfveK n‡”QÑ K MnO2 L AlO3 M V2O5 N P2O5 17. weMwjZ Ae ’vq †mvwWqvg †K¬vivBW‡K

Zwor we‡k−lY Ki‡j K¨v‡_v‡W †KvbwU Rgv nq ?

K H2 M¨vm L Cl2 M¨vm M Na avZz N NaOH ªeY 18. wPwb ev M −y‡KvR n‡”QÑ K B‡jKUªbxq L Zwor we‡k−l¨ M Zwor cÖ‡jcb N Zwor Awe‡k−l¨ 19. Zvc ivmvqwbK wewµqvq cÖgvY ZvcgvÎv

†KvbwU ? K 20°C L 25°C M 30°C N 32°C 20. †Wwb‡qj †m‡j abvÍK cÖvš� n‡”QÑ K wRsK `Ê L Kcvi `Ê M Kve©b `Ê N Kcvi mvj‡dU

`ªeY 21. mwµqZv wmwi‡R me‡P‡q †ewk

B‡jK‡UªvcwRwUf avZz n‡”QÑ K K¨vjwmqvg L cUvwmqvg M wjw_qvg N wRsK 22. †ngvUvBU †Kvb avZzi AvKwiK ?

K Zvgv L `¯�v M †jvnv N A¨vjywgwbqvg 23. †Kvb avZzwU ¶v‡ii mv‡_ wewµqv K‡i bv

?

K wRsK L A¨vjywgwbqvg M †jW N Avqib 24. †Kvb avZzi jeY wkLv cix¶vq †e¸wb

wkLvi m„wó K‡i ? K †mvwWqvg L cUvwmqvg M K¨vjwmqvg N A¨vjywgwbqvg 25. wb‡æi †KvbwU eûiƒcx †gŠj ? K Kve©b L bvB‡Uªv‡Rb M †K¬vwib N †eªvwgb 26. wb‡æi †Kvb A·vBW Dfag©x ? K ZnO L Na2O M MgO N K2O 27. wb‡Pi †KvbwU Bw_‡bi ms‡KZ ? K CH3 L H3C ⎯ CH3 M C = H2 N C2H4 28. mvevb ˆZwii DcRvZ wn‡m‡e wK cvIqv

hvq ? K B_vbj L wg_vbj M wf‡bMvi N wM−mvwib 29. wb‡Pi †KvbwU A¨vjKvBb †hŠM ? K C2H6 L C2H4 M C3H6 N C2H2 30. wbkv`‡ji mv‡_ KzBK jvBg DËß K‡i

wK M¨vm cÖ ‘Z Kiv nq ? K NH3 L NO2 M CO2 N NO 31. †divm mvj‡d‡Ui ms‡KZ n‡”QÑ K Fe2(SO4)3 L FeSO7 M FeSO3 N FeSO4 32. GKwU Zxeª GwmW I Zxeª ¶vi‡Ki g‡a¨

cÖkgb wewµqvq Zvc n‡”QÑ K 57.3 kJ L 100 kJ M 75.3 kJ N 58.3 kJ 33. Zwor we‡kva‡bi gva¨‡g weï× Kiv nqÑ K Kcvi L wRsK M †jW N †mvwWqvg 34. g¨vM‡bwmqvg D¾¡j iƒcvjx e‡Y©i avZz|

Gi Mjbv¼ n‡”QÑ K 650°C L 550°C M 560°C N 1000°C 35. †mvwWqvg wkLv cix¶vq †Kvb eY© †`Lvq ? K meyR L †mvbvjx njy eY© M †e¸wb N bxj eY©

DËigvjv

1 M 2 K 3 N 4 K 5 L 6 L 7 N 8 L 9 K 10 N 11 M 12 M 13 K 14 M 15 K 16 M 17 M 18 N 19 L 20 L 21 M 22 M 23 N 24 L 25 K 26 K 27 N 28 N 29 N 30 K 31 N 32 K 33 K 34 K 35 L



1| 10°C ZvcgvÎv e„w× Ki‡j wewµqvi MwZ KZ¸Y e„w× cvq ?

K. 2 ¸Y L. 3 ¸Y M. 4 ¸Y N. 6 ¸Y 2| wb‡Pi †Kvb KwVb c`v_©wU DËß Ki‡j mivmwi

ev‡®• iƒcvš�wiZ nq ? K. wmwjKb WvBA·vBW L. jeY M. ‡mvwWqvg N. Av‡qvwWb 3| Bw_wj‡bi MvVwbK ms‡KZ n‡”Q- K. H − C = C – H L. H − C ≡ C − H | | H H M. N. H − C ≡ C − H | | H H 4| wØ‡hvRx g�jK †KvbwU ? K. NO2 L. PO4

M. CN N. SO3

5| GK j¶ nvB‡Wªv‡Rb cigvYyi g‡a¨ KZwU wWD‡Uwiqvg cigvYy _v‡K ?

K. 99985 L. 99990 M. 10 N. 15 6| Zwor Pz¤Kxq ZË¡ †K Avwe®‹vi K‡ib ? K. iv`vi‡dvW© L. ‡evi M. P¨vWDBK N. g¨v·I‡qj 7| Zz‡Zi ivmvqwbK ms‡KZ †KvbwU ? K. CuSO4. 5H2O L. CuSO4

M. CuSO4. H2O N. CuSO4.2H2O 8| Pz‡bi cvwb‡Z AwaK¶Y CO2 Pvjbv Ki‡j wK ˆZwi

nq ? K. CaCO3 L. Ca(HCO3)2 M. H2CO3 N. NaHCO3

9| B_vbj I mvjwdDwiK Gwm‡Wi wewµqvq †Kvb †hŠMwU MwVZ nq bv ?

K. C2H4 L. C2H5–O–C2H5 M. C2H5SO4H N. CH3COOH 10| fi Abycv‡Z f‚Z¡‡Ki kZKiv KZ fvM wmwjKb ? K. 38 fvM L. 48 fvM M. 18 fvM N. 28 fvM 11| †Kvb M¨vm †_‡K cPv wW‡gi MÜ †ei nq ? K. CO2 L. CO M. H2S N. N2O 12| 1 d¨viv‡W mgvb KZ Kzj¤ ?

K. 3×96500 C L. 96500 C M. 2×96500 C N. 86500 C 13| AmIqvì c×wZ‡Z bvBwUªK GwmW cÖ ‘ wZi mgq

cÖfveK wn‡m‡e wK e¨eüZ nq ? K. †jvnvi ¸ov L. f¨vbvwWqvg †c›UvA·vBW M. wb‡Kj P‚Y© N. c−vwUbvg 14| ‡KvbwUi cigvYy mvaviYZ B‡jKUªb Z¨vM K‡i ? K. Ca L. C M. Ne N. Cl 15| c¨vwgwUK Gwm‡Wi ivmvqwbK ms‡KZ †KvbwU ? K. C15H31COOH L. C17H35COOH M. C17H33COOH N. CH3COOH 16| †Kvb †hŠ‡Mi ’‚j ms‡KZ I AvYweK ms‡KZ GKB

? K. NH3 L. C6H6

M. C6H12O6 N. C2H2

17| ÒcÖvDmÓ ivmvqwbK ms‡hvM m�‡Îi †Kvb m�ÎwU Avwe®‹vi K‡ib ?

K. ¸YvbycvZ m �Î L. wecixZ AbycvZ m �Î M. w¯’ivbycvZ m�Î N. f‡ii wbZ¨Zv m�Î 18| GKwU †gŠ‡ji B‡jKUªb web¨vm 2, 8, 18, 8, 2

ch©vq mviYx‡Z Zvi Ae ’vb- K. 4_© ch©v‡q II MÖ“‡c L. 5g ch©v‡q II MÖ“‡c M. 3q ch©v‡q II MÖ“‡c N. 6ô ch©v‡q II MÖ“‡c 19| †Kvb †hŠ‡Mi AYyi MVb wcivwgW AvK…wZi ? K. cvwb L. wg‡_b M. A¨v‡gvwbqv N. Kve©b WvBA·vBW 20| †Kvb weÁvbx †gŠ‡ji ¶z ªZg KwYKvi bvg †`b Ômij

cigvYyÕ? K. †W‡gvwµUvm L. A¨vwi÷Uj M. ievU© eªvDb N. Rb Wvëb 21| †KvbwU dmdwiK GwmW ? K. H3PO4 L. H3PO3

M. H2PO3 N. H2PO4 22| †Kvb RvZxq †hŠM cwjgvi MVb K‡i ? K. A¨vjwKb L. ‰Re GwmW M. A¨vj‡Kb N. A¨vj‡Kvnj 23| wkí‡¶‡Î †Kvb c×wZ‡Z †mvwWqvg Kve©‡bU

Drcv`b Kiv nq ? K. A v‡gvwbqvi RviY c×wZ L. d«vk c×wZ M. ¯•k© c×wZ N. mj‡f c×wZ

24| †ccwm‡Kvjv, †KvKv‡Kvjvi †evZ‡ji gyL Lyj‡j †Kvb M¨v‡mi ey ey ˆZwi nq ?

K. SO2 L. CO2 M. NO2 N. O2 25| wbkv`‡ji ms‡KZ †KvbwU ? K. NH3 L. NH4 M. NH4Cl N. NH4OH 26| nvB‡Wªv‡Rb AYy‡Z ywU nvB‡Wªv‡Rb cigvYyi Rb¨ eÜb

kw³ KZ ? K. 464 kJ/mole L. 244 kJ/mole M. 435 kJ/mole N. 928 kJ/mole 27| NH4CNO→NH2–CO–NH2 G wewµqvwU- K. we‡qvRb L. RviY-weRviY M. mgvYyKiY N. cwjgviKiY 28| avZzmg�n fvj we y r cwievnx †Kb ? K. avZzmg�n Lye KwVb e‡j L. avZz‡Z abvÍK Avavbwewkó avZzAvqb _v‡K

e‡j M. avZz‡Z wegy³ B‡jKUªb _vKvi Kvi‡Y N. avZzmg�n AvqwbK †hŠM MVb K‡i e‡j 29| mg‡hvRx †hŠM †KvbwU ? K. C6H12O6 L. NaCl M. CaCl2 N. CaO 30| †K¬vwib cigvYyi fi msL¨v KZ ? K. 17 L. 18 M. 35 N. 11 31| Cu + ZnSO4 = CuSO4 + Zn mgxKiYwU‡Z

Drcv` n‡”Q- K. Cu L. ZnSO4 M. CuSO4 N. CuSO4 I Zn 32| AvKv‡k we y r ¶i‡Yi d‡j bvB‡Uªv‡R‡bi

A·vBWmg�n Drcbœ nq, cvwbi mv‡_ wg‡k wK Drcbœ K‡i ?

K. N2O L. H2 Ges NO M. HNO3 N. H2O Ges HNO2

33| iƒcvi cÖZxK †KvbwU ? K. Mg L. Ag M. Hg N. Ru 34| KZ wWMÖx †mw›U‡MÖW ZvcgvÎvq DËß KwjPz‡bi mv‡_

†K¬vwib M¨vm Pvjbv Ki‡j we−wPs cvDWvi Drcbœ nq ?

K. 80° C L. 50°C M. 40°C N. 60°C 35| PCl3 + H2O = P(OH)3 + 2HCl-G

wewµqvwU- K. RviY-weRviY L. cÖkgb M. we‡qvRb N. cvwb‡hvRb

DËigvjv 1 K 2 N 3 K 4 N 5 N 6 N 7 K 8 L 9 N 10 N 11 M 12 L 13 N 14 K 15 K 16 K 17 M 18 L

19 M 20 N 21 K 22 K 23 N 24 L 25 M 26 M 27 M 28 M 29 K 30 M 31 N 32 M 33 L 34 M 35 N 36. 8. h‡kvi †evW©-2002 imvqb : ˆbe© w³K cÖkœ

H |

H − C − H | H


1| nvB‡Wªv‡R‡bi Avš�tAvYweK kw³ Kg n‡j Gi ùzUbv¼ KZ ?

K. −2530†m. L. Ñ3530†m. M. Ñ2730†m. N. Ñ 2630†m. 2| cvwbi GKwU AYyi fi n‡”Q ⎯ K. 3.99 × 10Ñ25MÖvg L. 1.99 × 10Ñ24 MÖvg M. 2.99 × 10Ñ23 MÖvg N. 1.673 × 10Ñ26 MÖvg 3| mvjwdDwiK GwmW (H2SO4)-Gi AvYweK fi

n‡”Q ⎯ K. 98.08 L. 108.08 M. 88.07 N. 77.08 4| A¨‡gvwbqv M¨v‡mi AvYweK fi n‡”Q ⎯ K. 37 MÖvg L. 27 MÖvg M. 14 MÖvg N. 17 MÖvg 5| 1 MÖvg nxi‡K KqwU Kve©b cigvYy we`¨gvb ? K. 4.02 × 1012 wU L. 5.02 × 1022 wU M. 3. 0 2× 1024 wU N. 6.02 × 1023 wU 6| cvi‡K¬vwiK GwmW (HClO4)-Gi AvYweK fi KZ

? K. 100.7 L. 100.5 M. 160. 7 N. 200.5 7| †dwiK †K¬vivBW (FeCl3) - G Fe Gi †hvRbx KZ

? K. 3 L. 5 M. 4 N. 2 8| g¨vM‡bwmqvg bvBUªvBW-Gi ms‡KZ n‡”Q ⎯ K. Mg3N3 L. Mg3N2 M. Mg4N4 N. MgN5 9| KZ mv‡j P¨vWDBK wbDUªb Avwe®‹vi K‡ib ? K. 1832 mv‡j L. 1932 mv‡j M. 1732 mv‡j N. 1632 mv‡j 10| nvB‡Wªv‡R‡bi KqwU AvB‡mv‡Uvc Av‡Q ? K. 5 L. 4 M. 6 N. 3 11| wg‡_b (CH4)-Gi Mjbv¼ n‡”Q ⎯ K. Ñ1830†m. L. Ñ3830†m. M. Ñ2830†m. N. Ñ10130 †m. 12| cvwbi AYyi AvK…wZ n‡”Q ⎯ K. mij‰iwLK L. †KŠwYK M. wcivwgW AvK…wZi N. PZz �jKxq

13| ch©vq mviYx‡Z mvjdvi -Gi Ae ’vb n‡”Q ⎯ K. VIIA †Z L. VIIIA †Z M. VIA †Z N. VA †Z 14| ch©vq mviYx‡Z n¨v‡jv‡Rbmg�‡ni Ae ’vb n‡”Q ⎯ K. MÖ“c IA †Z L. MÖ“c IIA †Z M. MÖ“c IVA †Z N. MÖ“c VIIA †Z 15| CaO + CO2 = CaCO3 G wewµqvwU n‡”Q ⎯ K. ms‡k−lY L. ms‡hvRb M. we‡qvRb N. cÖwZ ’vcb 16| cÖfveK n‡”Q ⎯ K. 3 cÖKvi L. 4 cÖKvi M. 5 cÖKvi N. 2 cÖKvi 17| wewµqvi MwZi Dci cÖfve †bB ⎯ K. ZvcgvÎv L. wewµq‡Ki ZvcgvÎv M. wewµqv cv‡Îi AvKvi N. cÖfveK 18| wPwb ev M −y‡KvR n‡”Q ⎯ K. B‡jKUªbxq L. Zwor we‡k−l¨ M. Zwor cÖ‡jcb N. Zwor Awe‡k−l¨ 19| GK †gvj wg‡_b‡K Aw·‡Rb m¤•�Y©iƒ‡c †cvov‡j

KZ Zvc wbM©Z nq ? K. 1560 wKt Ryj L. 1760 wKt Ryj M. 1660 wKt Ryj N. Ñ1860 wKt Ryj [we: ª: mwVK DËi 890 kj/.mole] 20| †jKj¨vÝ †m‡ji cÖK…Zc‡¶ Zwo”PvjK ej n‡”Q

⎯ K. 2.5 †fvë L. 1.5 †fvë M. 3.5 †fvë N. 0.5 †fvë 21| mwµqZv wmwi‡R me‡P‡q †ewk B‡jK‡UªvcwRwUf avZz

n‡”Q ⎯ K. K¨vjwmqvg L. cUvwmqvg M. wjw_qvg N. wRsK 22| wRs‡Ki AvKwiK n‡”Q ⎯ K. g¨vM‡bUvBU L. †ngvUvBU M. wj‡gvbvBU N. K¨vjvgvBb 23| w÷j ev B¯•v‡Z Kve©b wgwkÖZ _v‡K ⎯ K. 0.15 ⎯ 1.5% L. 0.05 ⎯ 0.5% M. 0.25 ⎯2.5% N. 0.35 ⎯3.5% 24| †mvwWqvg Av‡cw¶K ¸i“Z¡ n‡”Q ⎯ K. 0. 69 L. 0.97 M. 0.78 N. 0.99 25| A¨vjywgwbqv‡gi ùzUbv¼ n‡”Q ⎯

K. 12700 †m. L. 32700 †m. M. 22700 †m. N. 14700 †m. 26| †Kvb avZzi jeY wkLv cix¶vq †Kvb eY© † Lvq bv ? K. †mvwWqvg L. cUvwmqvg M. K¨vjwmqvg N. A¨vjywgwbqvg 27| †KvbwU iÄb wk‡í iO - eÜKiƒ‡c e¨eüZ nq ? K. Avqib (III) bvB‡UªU L. Avqib (II) mvj‡dU M. Avqib (III) †K¬vivBW N. Avqib (III) mvj‡dU 28| avZz wb®‹vk‡b weMvjK wnmv‡e †KvbwU e¨envi Kiv

nq ? K. A¨v‡gvwbqvg Kve©‡bU L. K¨vjwmqvg Kve©‡bU M. †mvwWqvg Kve©‡bU N. A¨v‡gvwbqvg bvB‡UªU 29| wmwjÛv‡i K‡i †h M¨vm wewµ nq Zv cÖavbZ ⎯ K. B‡_b L. wg‡_b M. weD‡Ub N. †c‡›Ub 30| wM −mvwib n‡jv GK cÖKvi ⎯ K. G÷vi L. dvwU GwmW M. ˆRe GwmW N. A¨vj‡Kvnj 31| CH3 ⎯ CH = CH ⎯ CH3 †hŠMwUi bvg wK

? K. 2- weDwUb L. 1 - weDwUb M. 3 - weDwUb N. 4 - weDwUb 32| †KvbwU A¨v‡gvwbqv M¨v‡mi ag© bq ? K. GKwU `vn¨ M¨vm L. ¶vi ag©x M. evZvm A‡c¶v nvjKv N. cvwb‡Z ªeYxq 33| wb‡Pi †KvbwU Dfag©x A·vBW ? K. MgO L. Na2O M. ZnO N. K2O 34| †mvwWqvg I K¨vjwmqvg wmwj‡K‡Ui wgkÖ‡Yi mv‡_

†Kvb c`v_© wU wgwkÖZ Ki‡j meyR is‡qi KuvP cvIqv hvq ?

K. †jW A·vBW L. †µvwgqvg M. †eviY A·vBW N. †Kvevë 35| †Kvb GwmW wbi“`K ? K. H3PO4 L. HCl M. HNO3 N. H2SO4

DËigvjv 1 K 2 M 3 K 4 N 5 L 6 L 7 K 8 L 9 L 10 N 11 K 12 L 13 M 14 N 15 L 16 L 17 M 18 N

19 20 L 21 L 22 N 23 K 24 L 25 M 26 N 27 K 28 L 29 L 30 N 31 K 32 K 33 M 34 L 35 N



1| †KvbwU wØ-†hvRx g�jK ? K. PH4 L. CO3 M. NO3 N. CN 2| Am¤•„³ †Z‡ji g‡a¨ H2 Pvjbv K‡i K…wÎg wN

ˆZix‡Z †Kvb cÖfveK eëüZ nq ? K. pt P‚Y© L. Ni P‚Y© M. Cu P‚Y© N. Fe P‚Y© 3| AavZz nIqv m‡Ë¡I †Kvb †gŠj weRviK ? K. Aw·‡Rb L. bvB‡Uªv‡Rb M. wmwjKb N. Kve©b 4| PbS AvKwiK‡K wK ejv nq ? K. M¨v‡jbv L. †jW †e −Ê M. wj‡gvbvBU N. cvBivBU 5| †ivMx‡K AÁvb Kivi Kv‡R †Kvb M¨vm eëüZ nq

? K. N2O L. NH3 M. N3H N. CO2

6| Aš�t Ae ’vš�i †gŠj n‡”QÑ K. 15wU L. 109wU M. 6wU N. 30wU 7| †mvwWqvg †K¬vivB‡Wi Rjxq ªe‡Yi Zwor we‡k−l‡Yi

d‡j A¨v‡bv‡W wK Rgv nq ? K. NaOH L. H2

M. Cl2 N. Na 8| †Kvb †k‡j m‡e©v”P 18wU B‡jKUªb _vK‡Z cv‡i? K. 1g L. 2q M. 3q N. 4_© 9| †Zj ev Pwe© n‡”Q GK ai‡biÑ K. A¨vjwWnvBW L. A¨vj‡Kvnj M. wWUvi‡RÈ N. Góvi 10| †KvbwU M¨vm bq ? K. CO2 L. CO M. Cl2 N. SiO2

11| H2 + 12 O2 → H2O wewµqvwU‡Z wK cwigvY Zvc

wbM©Z nq ? K. 186 wK‡jvRyj L. -286 wK‡jvRyj M. 386 wK‡jvRyj N. 486 wK‡jvRyj 12| †Kvb evK¨wU mwVK ? K. †mvwWqv‡gi cÖZxK SO L. †Mv‡ìi cÖZxK Au M. Avqi‡Yi cÖZxK I N. cUvwkqv‡gi cÖZxK P

13| †mvnvMv wK ? K. †mvwWqvg †K¬vivBW L. †mvwWqvg bvB‡UªU M. †mvwWqvg Kve©‡bU N. †mvwWqvg cvB‡iv‡ev‡iU 14| gqjvi yM©Ü Qwo‡q c‡o †Kvb cÖwµqvi gva¨‡g? K. e¨vcb L. eªvDbxq MwZ M. AwfmªeY N. ªeY 15| AYyi cÖ_g aviYv †`bÑ K. A¨v‡fv‡M‡Wªv L. Wvëb M. iv`vi‡dvW© N. ev‡R©wjqvm 16| KzBK jvBg †KvbwU ? K. Ca(OH)2 L. CaCO3 M. CaO N. CaNO3 17| e¨vZ¨vPzj−x‡Z AvKwiK †_‡K †jvnv wb®‹vk‡b weMjK

wnmv‡e wK eëüZ nq ? K. Pzb L. Pzbvcv_i M. evjy N. Kcvi cvBivBUm 18| M −y‡KvwbK Gwm‡Wi ms‡KZ †KvbwU ? K. C6H12O6 L. C12H22O11

M. C6H6 N. C6H12O7

19| †evib, wmwjKb, Av‡m©wbK n‡”QÑ K. avZz L. AavZz M. DcavZz N. wgkÖY 20| cÖLi m�h©v‡jv‡K wg‡_b (CH4) Ges †K¬vwib

(Cl2)-Gi g‡a¨ wewµqvq wK Drcbœ nq ? K. CH3Cl Ges HCl L. C Ges HCl M. Cl2 Ges H2

N. C6H6 Ges Cl2 21| Avš�tAvYweK kw³ e ‘i wK‡mi Dci wbf©i K‡i? K. ˆ`‡N©ï Dci L. cÖ‡¯’i Dci M. cÖK…wZi Dci N. gva¨‡gi Dci 22| GK MÖvg Zzj¨ mvjwdDwiK Gwm‡W KZ MÖvg? K. 98 MÖvg L. 57.3 MÖvg M. 49 MÖvg N. 36.5 MÖvg 23| †Kvb M¨v‡mi f‡ii mv‡_ Zzjbv K‡i ev®• NbZ¡ †ei

Kiv nq ? K. Aw·‡Rb L. nvB‡Wªv‡Rb M. bvB‡Uªv‡Rb N. †K¬vwib 24| †mvwWqvg †n·vd¬z‡ivGjywg‡bU Gi Mjbv¼ KZ ? K. 9000 †mt L. 10000 †mt

M. 8000 †mt N. 9500 †mt 25| A¨vjwWnvB‡Wi Kvh©Kix g�jK †KvbwU ? K. C−O−C L. C = O M. −NH2 N. −CHO 26| KZ †mwÈwgUv‡i GK A¨vs÷ªg? K. 108 †mt wgt L. 10 - 8 †mt wgt M. 10 - 6 †mt wgt N. 10 6 †mt wgt 27| cÖvYkw³ gZev‡ì cÖwZôvZv †K ? K. DBwjqvg nv‡f© L. †fvjvi M. †fvëv N. ev‡R©wjqvm 28| †KvbwU kw³ bq ? K. Zvc L. Av‡jv M. we y r N. evZvm 29| Òwbivc`Ó w`qvkjvB‡qi KvwVi AMÖfv‡M cÖavbZt

wK _v‡K ? K. A¨vwÈgwb mvjdvBW L. dmdivm †cÈvA·vBW M. cUvwkqvg †K¬v‡iU N. cUvwkqvg mvj‡dU 30| †Wwb‡qj †m‡ji Zwor”PvjK ej KZ †fvë? K. 1.1 L. 1.5 M. 3 N. 1.15 31| j¨vfqwm‡q †Kvb †`‡ki weÁvbx? K. Rvg©vbx L. divmx M. BUvjx N. Bsj¨vÊ 32| †Kvb †hŠ‡Mi †cvjvwiwU †bB? K. Lv`¨ jeY L. wPwb M. A¨vj‡Kvnj N. †c‡Ævj 33| c−v¤vm †hŠ‡M †j‡Wi †hvRbx KZ ? K. 1 L. 2 M. 3 N. 4 34| AwjwqK Gwm‡Wi ms‡KZ †KvbwU ? K. C15H31COOH L. C17H35COOH M. C17H33COOH N. C17H35COONa 35| 9.64×104 Kzj¤ n‡”QÑ K. A¨v‡fv‡M‡Wªvi msL¨v L. 1 d¨viv‡W Avavb M. 1 A¨vw¤•qvi we y r N. 1 †gŠj B‡jKUªb

DËigvjv 1 L 2 L 3 N 4 K 5 K 6 N 7 M 8 M 9 N 10 N 11 L 12 L 13 N 14 K 15 K 16 M 17 L 18 N

19 M 20 L 21 M 22 M 23 L 24 L 25 N 26 L 27 N 288 N 29 M 30 K 31 L 322 N 33 L 34 K 35 L

†evW© cix¶vi cªkœ I DËi : ˆbe© w³K

PÆMÖvg †evW©


38. PÆMÖvg †evW©-2009 imvqb : ˆbe© w³K cÖkœ mgq-35 wgwbU; c �Y©gvb -35


1. AvqwbK eÜ‡bi aviYv †K †`b ? K fvÛvi Iqvjm& L Wvëb M weÁvbx †Kv‡mj N cÖvDm 2. †Kvb& avZzwU ¶v‡ii mv‡_ wewµqv K‡i bv ? K wRsK L A¨vjywgwbqvg M †jW N Avqib 3. NO3 je‡Y Kcvi P�Y© I Mvp mvjwdDwiK

GwmW †hvM K‡i Zvc w`‡j †Kvb& M¨vm wbM©Z nq ?

K NO L NO2 M CO2 N SO2

4. †Kvb& †hŠMwU LyeB welv³ ? K CO2 L SiO2 M CO N NH3

5. †Kvb& je‡Yi `ª‡eY AgNO3 †hvM Ki‡j `wai gZ mv`v Aat‡¶c m„wó nq ?

K bvB‡UªU L †K¬vivBW M mvj‡dU N mvjdvBW 6. †Kvb&wU GwmwUK Gwm‡Wi wg_vBj MÖ“c‡K

AvµgY K‡i ? K PCl3 L PCl5

M Cl2 N NO2

7. d vwU GwmWmg�‡ni mvaviY ms‡KZ †Kvb&wU ? K CnH2n+1COOH L COOH M CnH2n N CnH2n+1COOR 8. wb‡Pi †Kvb& †hŠMwU A¨vjwKb ? K C3H8 L C3H6 M C2H6 N C4H12

9. wewµqvi MwZi Dci cÖfve †bB ⎯ K ZvcgvÎv L wewµq‡Ki NbgvÎv M cÖfveK N wewµqv cv‡Îi AvKvi 10. A v‡gvwbqv cÖ ‘wZ‡Z AZ vbyK‚j ZvcgvÎv KZ ? K 450° - 550°C L 400° - 500°C M 500° - 600°C N 600° - 700°C 11. GKwU Zxeª GwmW I Zxeª ¶vi‡Ki g‡a¨

cÖkgb wewµqvi Zvc n‡”Q ⎯ K -57.3KJ L 57.3KJ M 100KJ N -753KJ 12. 1 kg cvwbi ZvcgvÎv 1°C evov‡Z cÖ‡qvRbxq

Zvc kw³‡K ejv nq ⎯ K GK Ryj L GK K¨vjix M GK wK‡jvRyj N GK wK‡jvK¨vjix

13. ivmvqwbK wewµqvq Zvckw³ cwieZ©‡bi KviY ⎯

K ivmvqwbK eÜ‡bi fv½b L ivmvqwbK eÜ‡bi MVb M ivmvqwbK eÜ‡bi fv½b I MVb N B‡j±ª‡bi Av`vb-cÖ vb 14. wb‡Pi †Kvb& avZzwU mwµqZvµ‡g mevi Dc‡i ? K K¨vjwmqvg L Kcvi M Avqib N A¨vjywgwbqvg

15. B¯•vZ n‡”Q ⎯ K weï× Avqib L ¯í cwigv‡Y Kve©bhy³ Avqib M GKwU †gŠj N †jvnvi AvKwiK 16. wb‡Pi †Kvb& avZz‡K Kve©b weRviY wewµqvq

wb®‹vkb Kiv nq ? K A¨vjywgwbqvg L †jW M †mvwWqvg N g¨vM‡bwmqvg 17. †Kvb&wU avZzi me‡P‡q fvj msÁv ? K we`y r cwievnx n‡j Zv avZz L †h †gŠ‡ji MjbvsK DuPz Zv avZz M †h †gŠ‡ji `y wZ Av‡Q Zv avZz N †h †gŠ‡ji cigvYy B‡jKUªb Z¨vM K‡i

K¨vUvqb m„wó K‡i Zv avZz 18. O2- (A·vBW Avqb) Gi B‡jKUªb msL¨v KZ

? K 7 L 8 M 9 N 10 19. WvjWv ˆZix‡Z cÖfveK wnmv‡e †Kvb&wU e¨eüZ

nq ? K V2O5 L Ni M Pt N Fe 20. we −wPs cvDWv‡i ms‡KZ †Kvb&wU ? K Ca(OCl)2Cl L Ca(OCl)Cl M Ca(OCl)Cl2 N Ca2(OCl)Cl2

21. ivmvqwbK wewµqvi Rb †Kvb&wU AZ vek¨K ? K Zvc L ms¯•k© M cÖfveK N Av‡jv 22. H2SO4 + Zn = ZnSO4 + H2-G wewµqvwU

⎯ K wØ-we‡qvRb L RviY-weRviY M cÖkgb N cÖwZ¯’vcb 23. GKwU †gŠ‡ji B‡j±ªb web¨vm 2, 8, 18, 8, 1

ch©vq mviYx‡Z Zvi Ae¯’vb ⎯ K 4_© ch©v‡q IIA MÖ“‡c

L 1g ch©v‡q VIA MÖ“‡c M 6ô ch©v‡q IA MÖ“‡c N 3q ch©v‡q IIA MÖ“‡c 24. mij Ae¯’vš�i †gŠj n‡”Q ⎯ K avZz L M¨vmxq M Zij N AavZz 25. wb‡Pi †Kvb&wU Zwor we‡k−l¨ ? K wPwb L wg‡_b M †ebwRb N mvjwdDwiK GwmW 26. Zn + Cu++ ⎯→ Zn++ + Cu G

wewµqvwU‡Z weRviK †Kvb&wU ? K Cu++ L Zn++

M Zn N Cu 27. †Kvb& e¯‘wU Zv‡c KwVb Ae¯’v †_‡K mivmwi

ev‡®• iƒcvš�wiZ nq ? K mvaviY jeY L cvwb M Av‡qvwWb N A¨vj‡Kvnj 28. cvigvYweK msL¨v †K Avwe®‹vi K‡ib ? K †nbix wR. †R. †gvm‡j L A¨v‡fv‡M‡Wªv M †g‡Ûjxd N Rb Wvëb 29. wb‡gœi †Kvb&wU †hŠwMK c`v_© ? K †mvbv L Aw·‡Rb M evqy N mvjwdDwiK GwmW 30. †gvgevwZ R¡j‡Z _vK‡j †Kvb& ai‡bi cwieZ©b

nq ? K †fŠZ cwieZ©b L ivmvqwbK cwieZ©b M †fŠZ I ivmvqwbK Dfq cwieZ©b N †Kvb cwieZ©b nq bv 31. wb‡Pi †Kvb&wU cwieZ©bkxj †hvRbx cÖ k©b K‡i ? K Cu L Na M Zn N Al 32. A¨v‡gvwbqv AYyi AvK…wZ wKiƒc ? K V-AvK…wZwewkó L ˆiwLK M PZz¯�jKxq N wcivwgWxq 33. Av`k© ZvcgvÎv I Pv‡c 50g Kve©b WvB-

A·vBW M¨v‡mi AvqZb KZ ? K 25.45 wjUvi L 22.4 wjUvi M 50 wjUvi N 100 wjUvi 34. †Kvb&wU‡K ivmvqwbK c v_©mg�‡ni ivRv ejv nq ? K HNO3 L H3PO4 M H2SO4 N H2CO3

35. GKwU e¯‘ mvaviY ZcgvÎvq Zij c`v_©, Z‡e we`y r cwievnx bq; G‡Z †Kvb& ai‡bi eÜb we`¨gvb ?

K mg‡hvRx L AvqwbK M avZe N †Kvb eÜb †bB

DËigvjv 1 M 2 N 3 L 4 M 5 L 6 M 7 K 8 L 9 N 10 L 11 L 12 K 13 M 14 K 15 L 16 L 17 N 18 N 19 K 20 L 21 L 22 N 23 M 24 K 25 N 26 M 27 M 28 K 29 N 30 M 31 K 32 N 33 K 34 M 35 K

39. PÆMÖvg †evW©-2008 imvqb : ˆbe© w³K cÖkœ


1. XvjvB †jvnv‡Z wmwjK‡bi cwigvY KZ ? K 4% L 0.4% M 1–1.5% N 2 – 2.5% 2. g¨vM‡bwmqvg Rjxq ev‡®•i mv‡_ KZ

ZvcgvÎvq wewµqv K‡i ? K 100°C L 200°C M 150°C N 0°C 3. Rvbvjvi KuvP cÖ � ywZ‡Z †KvbwU e¨eüZ nq

? K MgSO4 . 7H2O L Na2SO4.10H2O M CO N CaSO4. 2H2O 4. †mvwWqvg A¨vjywg‡b‡Ui cÖK…Z ms‡KZ

†KvbwU ? K NaAlO2 L Na2Zn (OH)4 M NaAl(OH)4 N Na2ZnO2

5. evZv‡m bvB‡Uªv‡R‡bi cwigvY KZ ? K 21% L 23% M 56% N 78% 6. mvjdv‡ii Mjbv¼ KZ ? K 119°C L 180°C M 125°C N 115°C 7. A¨vj‡K‡bi mvaviY AvYweK ms‡KZ

†KvbwU ? K CnH2n+1 L CnH2n+2 M CnH2n N CnHn

8. CH3 – CH2 – CH = CH2 Gi bvg wK ?

K 2– weDwUb L weDwUb M 1– weDwUb N 3– weDwUb 9. †eªvwg‡bi eY© Kx ? K jvj L njy M Kvj N meyR 10. †nevi em c×wZ‡Z A¨v‡gvwbqv Drcv`‡b

KZ Pvc cÖ‡qvM nq ? K 100 – 200 atm L 200 – 225 atm M 150 – 250 atm N 200 – 250 atm 11. GK †gvj B‡jKUªb KZ Kzj¤ PvR© enb

K‡i ? K 2 × 96500 Kzj¤^ L 96500 Kzj¤^ M 965000 Kzj¤^ N 9650 Kzj¤^ 12. OH–, Cl–1 Avqbmg�n AvK…ó nq Kvi cÖwZ

?

K A¨v‡bvW L ZworØvi M K¨v‡_vW N Zwor †Kvl 13. GK K¨vjwi mgvb KZ ? K 4.18 Joule L 2.18 Joule M 3.18 Joule N 4.28 Joule 14. GK †gvj H–H eÜb fvO‡Z KZ kJ

kw³ †kvwlZ nq ? K 425 L 928 M 684 N 435 15. †Kvb ai‡bi wewµqvi †¶‡Î ∆H FYvZ¥K

? K Zvcnvix L cÖkgb M Zv‡cvrcv`x N cvwb‡hvRb 16. mvwRgvwU‡Z †KvbwU we`¨gvb ? K †mvwWqvg bvB‡UªU L †mvwWqvg Kve©‡bU M †mvwWqvg †K¬vivBW N †mvwWqvg evBKve©‡bU 17. cvwbi ù�Ubv¼ KZ ? K 0°C L 100°C M – 259°C N –253°C 18. †KvbwU wRs‡Ki AvKwiK ? K wj‡gvbvBU L M¨v‡jbv M e·vBU N K¨vjvgvBb 19. wµcU‡bi GKwU cigvYy‡Z KqwU

B‡jKUªb Av‡Q ? K 54 L 36 M 86 N 18 20. AvqwbK eÜ‡bi aviYv †`b †K ?

K f¨vÛviIqvjm L Wvëb M †Kv‡mj N cÖvDm 21. ch©vq mviwYi 6ô ch©v‡q KZwU †gŠj Av‡Q

? K 8 wU L 18 wU M 4 wU N 32 wU 22. †KvbwU mvjdv‡ii cvigvYweK e¨vmva© ? K 109A° L 1.46A° M 1.72A° N 2.23A° 23. f�-Z¡‡K A¨vjywgwbqv‡gi kZKiv cwigvY KZ

? K 49% L 10% M 7% N 17% 24. BDwiqvi ms‡KZ †KvbwU ?

K NH4CNO L H2N – CO – NH2 M H2N – CO2 – NH2 N N2H–CO–H2N 25. Pv‡ci gva¨‡g †Kvb wewµqvwU N‡U ? K 3O2 → 2O3 L 2H2O → 2H2 + O2

M Pb + S → PbS N C2H2 → 2C + H2 26. †mvwWqvg _v‡qvmvj‡d‡Ui ms‡KZ †KvbwU ? K Na2S2O3 L NaSO3 M Na3S2O3 N Na2SO3

27. mvjwdDwiK Gwm‡Wi cÖ � ywZ‡Z †KvbwU cÖfveK wn‡m‡e KvR K‡i ?

K SiO2 L MnO2 M V2O5 N Na2S2O3

28. †KvbwU c`v_© bq ? K Zvc L †Pqvi M evZvm N gvwU 29. nvB‡Wªv‡R‡bi GKwU cigvYyi fi KZ ? K 2.99×10–23g L 1.67×10–24g M 3.95×10–22g N 1.66×10–22g 30. divmx imvqbwe` †Rv‡md jyBm cÖvDm

KZ L„÷v‡ã w¯’ivbycvZ m�ÎwU cÖKvk K‡ib ?

K 1774 L 1772 M 1799 N 1776 31. GK MÖvg nxi‡K KqwU cigvYy Av‡Q ? K 5.02×1023 L 5.02×1025 M 5.02×1025 N 5.02×1022 32. mvjdvi AYyi mwVK ms‡KZ †KvbwU ? K S2 L S4 M S6 N S8

33. Kve©b I mvjdvi mgš‡q MwVZ †hŠ‡Mi ms‡KZ n‡”Q ⎯

K C2S2 L CS2 M CS3 N CS4

34. B‡jKUª‡bi Avmj fi KZ ? K 9.11×10–28g L 9.01×10–28g M 9.11×10–24g N 9.11×10–23g

35. 168 O2– Gi wbDU‡bi msL¨v KZ ?

K 16 L 10 M 8 N 6

DËigvjv

1 M 2 K 3 L 4 K 5 N 6 K 7 L 8 M 9 K 10 N 11 L 12 K 13 K 14 N 15 M 16 L 17 L 18 N 19 L 20 M 21 N 22 K 23 M 24 L 25 M 26 K 27 M 28 K 29 L 30 M 31 N 32 N 33 L 34 K 35 M

40. PÆMÖvg †evW©-2007 imvqb : ˆbe© w³K cÖkœ 1. wb‡æi †KvbwU mgmË¡ wgkÖY? K evjy I wPwbi wgkÖY L †jvnvi uov I je‡Yi wgkÖY


M evjy I †jvnvi uovi wgkÖY N wPwb I cvwbi `ªeY 2. cÖK…wZ‡Z cÖvß me‡P‡q fvix †gŠj †KvbwU? K nvB‡Wªv‡Rb L Avqib M BD‡iwbqvg N gvK©vix 3. H2SO4 Gi AvYweK fi 98 Gi GKwU AYyi

fi KZ? K 1.67×10 g–24 L 1.63×10 g–24 M 3.95×10 g–24 N 1.66×10 g–24 4. ev‡R©wjqvm KZ mv‡j cÖ �ve K‡ib †h, GKB

ZvcgvÎv I GKB Pv‡c mgAvqZbwewkó mKj M v‡m mgvb msL¨K cigvYy _v‡K?

K 1811 L 1808 M 1799 N 1772 5. wb‡æi †Kvb †hŠ‡Mi ev®• NbZ¡ 23 ? K NO2 L N2O M CO2 N SO2

6. GK MÖvg cvwb‡Z KZwU AYy Av‡Q? K 5.02 × 1022 L 3.346 × 1022 M 6.02 × 1023 N 3.76 × 1022 7. †Kvb&wU Rvbv bv _vK‡j †hŠ‡Mi ms‡KZ wjLv m¤¢e

bq? K cvigvYweK msL¨v L cvigvYweK fi M †hvRbx N Avqb 8. †KvbwU wØ-†hvRx? K wmwjKb L †ewiqvg M wmjfvi N †evib 9. g vM‡bwmqvg dm‡d‡Ui ms‡KZ n‡”Q⎯ K Mg2PO4 L MgPO4 M Mg2 (PO4)3 N Mg3 (PO4)2

10. 3517Cl-Gi †¶‡Î †KvbwU mZ¨ bq?

K G‡Z 17 wU †cÖvUb Av‡Q L G‡Z 17 wU B‡jKUªb Av‡Q M G‡Z 17 wU wbDUªb Av‡Q N Gi wbDUªb I †cÖvU‡bi †gvU msL¨v 35 11. Z…Zxq †k‡j m‡e©v”P B‡jKUªb aviY¶gZv⎯ K 2 wU A_ev 10 wU L 2 wU A_ev 8 wU M 2 wU N 18 wU 12. mg‡hvRx †hŠM m¤‡Ü wb‡Pi †Kvb evK wU mwVK? K wbæ ùzUbv¼ L D”P ùzUbv¼ M D”P Mjbv¼ N AwaKvsk †hŠM cvwb‡Z `ªeYxq 13. CO2 AYyi AvK…wZ †Kgb?

K mij îwLK L wcivwgWxq M PZz¯�jKxq N †KŠwYK 14. ¶vi avZzi mwµqZvi µg †KvbwU? K Li > Na > K > Rb > Cs L Cs > Rb > K > Na > Li M Na > Li > Rb > K > Cs N K > Na > Li > Cs > Rb 15. †Ujywiqv‡gi cvigvYweK msL v 52 ch©vq

mviYx‡Z Gi Ae¯’vb⎯ K MÖ“c VIII L MÖ“c VII M MÖ“c VI N MÖ“c V 16. †KvbwU wØ-we‡hvRb wewµqv? K NaOH + HCl = NaCl + H2O L CaCO3 + 2HCl = CaCl2 + H2O + CO2

M H2SO4 + Zn = ZnSO4 + H2

N Ag NO3 +KCl = AgCl + KNO3 17. CH4 + Cl2 → CH3Cl + HCl, G wewµqvwU

msNwUZ nq⎯ K Av‡jvi Abycw¯’wZ‡Z L ê`y wZK Av‡jvi Dcw¯’wZ‡Z M cÖLi m�h©v‡jv‡Ki Dcw¯’wZ‡Z N g„ y m�h©v‡jv‡Ki Dcw¯’wZ‡Z 18. †Kvb&wU ˆZix‡Z UvB‡Uwbqv‡gi ˆRe avZe

†hŠMmg�n cÖfveK wn‡m‡e eëüZ nq? K K…wÎg wN L A¨v‡gvwbqv M cwjBw_wjb N mvjdvi UªvB-A·vBW 19. mvjdvi WvB-A·vB‡Wi RviY cÖwµqvq AZ vbyK‚j

ZvcgvÎv KZ? K 200°C – 250°C L 400°C – 500°C M 450°C – 500° C N 450°C – 550°C 20. GK †gvj Aw·‡Rb Drcv ‡bi Rb KZ Zwor

cÖ‡qvRb? K 4F L 3F M 2F N 1F 21. Nwoi †PB‡b †Kvb avZzi cÖ‡jc † Iqv nq? K †µvwgqvg L †jW M wRsK N wmjfvi 22. †KvbwU Zvcnvix wewµqv? K CaO(s) + H2O (l) → Ca (OH)2(s) L N2(g) + O2 (g) → 2NO (g) M C (s) + O2 (g) → CO2 (g) N 2H2 (g) + O2 (g) → 2H2O (l) 22. Aw·‡Rb AYy‡Z yBwU Aw·‡Rb cigvYyi g‡a¨

eÜb kw³ n‡”Q ⎯

K 435 kJ/ mole L 464 kJ/mole M 498 kJ / mole N 535kJ / mole 24. ZvcivmvqwbK mgxKi‡Y cÖgvY ZvcgvÎv⎯ K 0°C L 100°C M 273°C N 298K 25. †Kvb&wU †j‡Wi AvKwiK? K K¨vjvgvBb L †ngvUvBU M e·vBU N M¨v‡jbv 26. µvBIjvB‡Ui Mjbv¼ KZ? K 2050°C L 950°C M 1000°C N 900°C 27. mvwRgvwU‡Z †KvbwU we`¨gvb? K †mvwWqvg †K¬vivBW L †mvwWqvg cvB‡iv‡ev‡iU M †mvwWqvg bvB‡UªU N †mvwWqvg Kve©‡bU 28. †Kvb avZzwU Rjxq ev‡®•i mv‡_ wewµqv K‡i ? K wRsK L †jW M Kcvi N gvK©vix 29. cUvwmqvg Av‡qvWvBW †hv‡M †Kvb& avZzi je‡Yi

njy Aat‡¶c c‡o? K †jW L Kcvi M K¨vjwmqvg N g¨vMwb‡mqvg 30. ¶vi avZz wfbœ mKj avZzi †Kvb jeY cvwb‡Z

`ªeYxq? K bvB‡UªU L Kve©‡bU M mvj‡dU N †K¬vivBU 31. †Kvb& M v‡mi eY© ev vgx? K CO L NO M NO2 N CO2

32. wb‡æi †KvbwU eûi�cx †gŠj bq? K Kve©b L dmdivm M mvjdvi N bvB‡Uªv‡Rb 33. wb‡æi †Kvb A·vBWwU cvwb‡Z ªeYxq ? K Fe2O3 L CuO M ZnO N Na2O 34. PCl3 †Kvb †hŠ‡Mi mv‡_ wewµqv K‡i bv?

K C2H5OH L CH3COOH M C2H4 N CH3OH 35. K…wÎg wmé †KvbwU? K B_vBj A vwm‡UU L †mjy‡jvR A¨vwm‡UU M A¨vgvBj A¨vwm‡UU N wg_vBj A¨vwm‡UU

DËigvjv

1 N 2 M 3 L 4 K 5 K 6 L 7 K 8 L 9 N 10 M 11 N 12 K 13 K 14 L 15 M 16 N 17 N 18 M 19 N 20 K 21 K 22 L 23 M 24 N 25 N 26 M 27 N 28 K 29 K 30 L 31 M 32 N 33 N 34 M 35 L

41. PÆMÖvg †evW©-2006 imvqb : ˆbe© w³K cÖkœ 1. nvB‡Wªv‡Rb cvi·vB‡Wi MvVwbK ms‡KZ †KvbwU ? K H = O = O – H


L H – O – H = O M H = O = H – O N H – O – O – H 2. HCl (aq) + KOH (aq) =KCl (aq) +

H2O (1); GB wewµqvq ∆H Gi gvb †KvbwU ?

K –57.23 kJ L –58.78 kJ M –57.28 kJ N –57.32 kJ 3. K¨vjvgvBb n‡”Q Ñ K wRs‡Ki AvKwiK L Kcv‡ii AvKwiK M A¨vjywgwbqv‡gi AvKwiK N †jvnvi AvKwiK 4. g vM‡bwmqv‡gi †hvRb B‡jKUª‡bi msL¨v KZ

? K 1 L 3 M 2 N 5 5. †KvbwU wbi‡c¶ A·vBW ? K CO L ZnO M MgO N Al2O3 6. nvB‡Wªv‡R‡bi `nb Zvc n‡”QÑ K –1560 kJ/mole L –242 kJ/mole M –57.3 kJ/mole N 57.3 kJ/mole 7. GKwU †hŠ‡Mi AvYweK fi 78 Ges Dnvi

¯’ �j ms‡KZ CH| †hŠMwUi mwVK AvYweK ms‡KZ †KvbwU ?

K C6H6 L C6H12 M C6H10 N C2H2 8. †mvwWqvg wRs‡K‡Ui mwVK ms‡KZ †KvbwU

? K Na2ZnO3 L Na2ZnO4 M NaZnO2 N Na2Zn(OH)4 9. †KvbwU Zwor we‡k−l¨ ? K Kcvi mvj‡dU L MÖvdvBU M A¨vj‡Kvnj N M −y‡KvR 10. A¨vjywgwbqvg A·vB‡Wi Mjbv¼ KZ? K 1050°C L 2050°C M 3050°C N 4050°C 11. wewµqvi MwZi Dci cÖfve †bB †KvbwUi

? K ZvcgvÎv L wewµq‡Ki

NbgvÎv M cÖfveK N cv‡Îi AvKvi

12. †Kvb †hŠMwU LyeB welv³ ? K CO2 L SiO2 M CO N NH3

13. Zvc ivmvqwbK mgxKi‡Y cÖgvY ZvcgvÎv n‡”QÑ

K 0°C L 25°C M 100°C N 15°C 14. wµcU‡bi †kl K¶c‡_ KqwU B‡jKUªb Av‡Q

? K AvU L `yB M Pvi N Qq 15. †Kvb avZz wkLv cix¶vq †Kvb eY© †`Lvq bv

? K †mvwWqvg L g¨vM‡bwmqvg M cUvwmqvg N Kcvi 16. †KvbwU FYvZ¥K cÖfveK ? K MnO2 L KMnO4 M Na2SO4 N H3PO4

17. †Kvb M¨vmwU ¶viKxq ? K NH3 L CO2 M CO N NO2

18. cvwbi GK †gvj n‡”QÑ K 18 L 18g M 2.99×10–23g N 1.66×10–24g 19. IwjK Gwm‡Wi ms‡KZ †KvbwU? K C17H35COONa L C15H31COOH M C17H35COOH N C17H33COOH 20. †Kvb †hŠMwU A¨vjwKb? K C3H8 L C3H6 M C2H6 N C4H10 21. GKwU †gŠ‡ji B‡jKUªb web¨vm

2,8,8,1| ch©vq mviwY‡Z Zvi Ae¯’vbÑ K 5g ch©vq 1 MÖ“‡c L 4_© ch©vq 1 MÖ“‡c M 3q ch©vq 1 MÖ“‡c N 6ô ch©vq 1 MÖ“‡c 22. A¨vj‡Kvn‡ji mvaviY ms‡KZ †KvbwU? K CnH2n+1 OH L CnH2nOH M CnH2n-1 OH N CnH2nCOOH 23. RviY-weRviY †¶‡Î †KvbwU mwVK bq? K †gŠ‡ji †hvRbxi cwieZ©b nq L RviY I weRviY GK‡Î msNwUZ

nq M KL‡bv RviY, KL‡bv ïay weRviY nq

N B‡jKUª‡bi Av`vb-cÖ vb nq 24. ywU AvB‡mv‡Uv‡ci ............mgvb bq| K cvigvYweK msL¨v L B‡jKUªb

msL¨v M fi msL¨v N ivmvqvwbK ag© 25. (i) bvB‡UªU; (ii) Kve©‡bU; (iii) dm‡dU;

(iv) A¨v‡gvwbqvgÑ†Kvb¸‡jv FYvZ¥K †hŠMgyjK t

K (i), (ii), (iv) L (i), (iii), (iv) M (ii), (iii), (iv) N (i), (ii), (iii) 26. wf‡bMv‡ii Dcv`vb †KvbwU ? K CH3COOH L C2H5OH M HCOOH N CH3OH 27. †KvbwU dmdiv‡mi B‡jKUªb web¨vm ? K 2, 8, 2 L 2, 8, 4 M 2, 8, 5 N 2, 8, 3 28. CaCO3 = CaO + CO2 ÑG wewµqvwUÑ K wØwe‡qvRb L cÖwZ¯’vcb M mgvYyKiY N we‡qvRb 29. A¨v‡fv‡M‡Wªvi msL¨vi gvb n‡”QÑ K 6.02×10–23 L 6.203×1023 M 2 N 6.02×1023 30. mwµqZv µ‡g wb‡Pi †Kvb avZzi Ae¯’vb

me‡P‡q Dc‡i ? K cUvwmqvg L K¨vjwmqvg M A¨vjywgwbqvg N Kcvi 31. AvaywbK imvq‡bi cÖwZôvZv †K ? K Aristotle L Democritus M John Dalton N Rictor 32. ch©vq mviwY‡Z bvB‡Uªv‡R‡bi Ae¯’vb

†Kvb MÖ“‡c ? K MÖ“c I L MÖ“c III M MÖ“c V N MÖ“c VII 33. wg‡_‡bi Mjbv¼Ñ K –162°C L 183°C M 801°C N –183°C 34. jvwds M¨v‡mi ms‡KZ †KvbwU? K NO L N2O3 M N2O N N2O5 35. 1 d¨viv‡Wi gvb KZ ? K 96500 Coulomb L 9600 Coulomb M 965000 Coulomb N 9650 Coulomb

DËigvjv

1 N 2 L 3 K 4 M 5 K 6 L 7 K 8 N 9 K 10 K 11 N 12 M 13 L 14 K 15 L 16 N 17 K 18 L 19 N 20 L 21 L 22 K 23 M 24 M 25 N 26 K 27 M 28 N 29 N 30 K 31 M 32 M 33 N 34 M 35 K

42. PÆMÖvg †evW©-2005 imvqb : ˆbe© w³K cÖkœ 1. †Kvb e¯‘i Avš�tAvYweK kw³ Lye †ewk n‡j

ZvÑ K D”P Mjbv¼ I ùzUbv¼ wewkó c`v_©

L mvaviY ZvcgvÎvq Zij M mvaviY ZvcgvÎvq M¨vmxq N wbæ Mjbv¼ I ùzUbv¼ wewkó c`v_©

2. GKwU †gŠ‡ji B‡jKUªb web vm 2, 8, 18, 18, 8, 1| ch©vq mviYx‡Z Zvi Ae ’vbÑ

K 3q ch©v‡q I MÖ“‡c


L 4_© ch©v‡q I MÖ“‡c M 5g ch©v‡q I MÖ“‡c N 6ô ch©v‡q I MÖ“‡c 3. AgNO3 + NaCl = AgCl + NaNO3G

wewµqvwUÑ K cÖwZ¯’vcb L wØwe‡hvRb M cÖkgb N mgvYyKiY 4. †nevi em c×wZ‡Z A¨v‡gvwbqv M¨vm

ms‡k−l‡Y AZ¨vbyK‚j ZvcgvÎv KZ? K 450Ñ550° †mt L 400Ñ350° †mt M 350Ñ250° †mt N 250Ñ200° †mt 5. mwµqZv µ‡g wb‡Pi †Kvb& Avq‡bi Ae¯’vb

me‡P‡q Dc‡i?

K SO2–3 L OH–

M SO2–4 N Cl–

6. †Kvb& †gŠjwU K¨v‡U‡bkb ag© cÖ ©kb K‡i? K †mvwWqvg L Kve©b M nvB‡Wªv‡Rb N †K¬vwib 7. GKwU cix¶v b‡j Aí cwigvY ªeY wb‡q Zv‡Z

†duvUvq †duvUvq †mvwWqvg nvB‡Wªv·vBW †hvM Kiv nj| cix¶v b‡j GKUz Zvc †Ìqv nj| g›`v meyR Aat‡¶c c‡o hv AwZwi³ †mvwWqvg nvB‡Wªv·vBW ev A¨v‡gvwbqv ªe‡Y ªexf‚Z nq bv| G‡Z †Kvb& Avqb Dcw ’Z e‡j eySv hvq?

K Fe3+ L Cu2+ M Ca2+ N Fe2+ 8. AavZzmg�n AóK c �iY K‡i (i) B‡jKUªb

Z¨v‡Mi gva¨‡g; (ii) B‡jKUªb MÖn‡Yi gva¨‡g; (iii) B‡jKUªb †kqv‡ii gva¨‡g| Dc‡ii †Kvb& ‡jv mwVK?

K (i) I (i) L (i) I (iii) M (ii) I (iii) N (i), (ii) I (iii) 9. †Kvb& je‡Y GwmW †hvM Ki‡j cPv wW‡gi

MÜhy³ M¨vm †ei nq? K mvj‡dU L mvjdvBW M †K¬vivBW N bvB‡UªU 10. DU©R wewµqvi mvnv‡h¨ wK ai‡bi ˆRe †hŠM

ˆZwi nq? K A¨vj‡Kb L A¨vjwKb M A¨vjKvBb N A¨v‡iv‡gwUK †hŠM 11. †Kvb †Kvb KwVb c`v_© DËß Ki‡j mivmwi

ev‡®• iƒcvš�wiZ nq| G cÖwµqv‡K ejv nqÑ K ivmvqwbK cwieZ©b L Mjb M ev®•xfeb N EaŸ©cvZb 12. ÒGKB ZvcgvÎv I Pv‡c mg AvqZbwewkó mKj M v‡m

mgvb msL¨K cigvYy _v‡K|ÓÑ Bnv †K cÖ �ve K‡ib? K A¨v‡fv‡M‡Wªv L Wvëb M ev‡R©wjqvm N †M jym¨vK 13. GKwU M v‡mi ev®• NbZ¡ 22| Dnvi AvYweK

fi KZ? K 44 L 22.4 M 22 N 11

14. mg‡hvRx †hŠ‡Mi AYymg�n †h we‡kl kw³ Øviv ci¯•‡ii cÖwZ AvK…ó _v‡K Zv n‡jvÑ

K Avš�tAvYweK kw³ L ivmvqwbK kw³ M w¯’i ê`y wZK kw³ N f¨vbWvi Iqvjm kw³ 15. ch©vq mviYx‡Z wbw®Œq M vmmg�‡ni Ae¯’vbÑ K MÖ“c II L MÖ“c 0 M MÖ“c IV N MÖ“c VII 16. 2Na + F2 = 2NaF G wewµqvq †Kvb&wU mwVK bq? K G‡Z †mvwWqv‡gi RviY N‡U‡Q

L G‡Z †K¬vwi‡bi weRviY N‡U‡Q M B‡jKUª‡bi Av`vb-cÖ vb N‡Uwb N †mvwWqvg weRviK I †K¬vwib RviK 17. AvKwiK †_‡K Kcvi wb®‹vk‡bi mgq me©‡kl

av‡c †h Kcvi cvIqv hvq Dnvi bvgÑ K Kcvi g¨vU L we −óvi Kcvi M wKDcÖvBU N Kcvi M−¨vÝ 18. g„ y cvbxq ˆZwi‡Z †Kvb& M¨vm eëüZ nq? K SO2 L NH3 M O2 N CO2 19. e −y-wfwUªq‡ji ms‡KZ †Kvb&wU? K ZnSO4. 7H2O L FeSO4. 7H2O M CuSO4. 5H2O N CuSO4 20. K¶ ZvcgvÎvq cvwbi mv‡_ †Kvb& avZzi

wewµqvi mgq Av¸b a‡i hvq? K K¨vjwmqvg L g¨vM‡bwmqvg M cUvwmqvg N wRsK 21. A¨vjwWnvBW †Kvb&wU? K CH3CHO L CH3COOH M C2H5OH N CH3–O–CH3 22. GKwU cix¶v b‡j Kcvi mvj‡dU ªeY wb‡q

Zv‡Z Aí cwigvY A¨v‡gvwbqv `ªeY †hvM Ki‡j wK NU‡e?

K bxjvf mv`v e‡Y©i Aat‡¶c co‡e L mv`v e‡Y©i Aat‡¶c co‡e M jvj e‡Y©i Aat‡¶c co‡e N ev`vgx e‡Y©i Aat‡¶c co‡e 23. ïaygvÎ RviY weRviY wewµqvq Drcbœ kw³‡K

mivmwi we y r kw³‡Z iƒcvš�i Kiv hvq, †KbbvÑ K RviY weRviY wewµqv GKwU Zvcnvix wewµqv| L RviY weRviY wewµqvq B‡jKUª‡bi Av vb-cÖ vb nq| M RviY weRviY wewµqv Ab¨vb¨ wewµqv

A‡c¶v `ª“Z msNwUZ nq N Ab¨vb¨ wewµqvq kw³ cwieZ©b Kg 24. wPwji gi“f �wg‡Z mëwcUvi bv‡g LwbR wnmv‡e

†mvwWqv‡gi †Kvb& †hŠMwU cvIqv hvq? K †mvwWqvg Kve©‡bU L †mvwWqvg †K¬vivBW M †mvwWqvg cvB‡iv‡ev‡iU N †mvwWqvg bvB‡UªU 25. A vjywgwbqv‡gi †hvRbxq B‡jKUª‡bi msL v KZ? K 5 L 4 M 3 N 2

26. GKwU †hŠ‡Mi AvYweK fi 180 Ges Dnvi ’�j ms‡KZ CH2O| †hŠMwUi mwVK AvYweK ms‡KZ †Kvb&wU?

K CH4O L C6H12O6 M C6H6O N H2CO3 27. cigvYyi †Kvb †k‡j m‡ev©”P 32wU B‡jKUªb

_vK‡Z cv‡i? K N †k‡j L M †k‡j M L †k‡j N K †k‡j 28. nvB‡Wªv‡Rb I Aw·‡Rb wg‡j cvwb (H2O) I

nvB‡Wªv‡Rb cvi-A·vBW (H2O2) bvgK yÕwU †hŠM MVb K‡i| Bnviv †Kvb& ivmvqwbK ms‡hvM m�Î †g‡b P‡j?

K w ’ivYycvZ m�Î L wecixZ AbycvZ m�Î M M¨vm AvqZb m�Î N ¸YvbycvZ m�Î 29. †Kvb †gŠ‡ji cigvYy‡Z m wU †cÖvUb, n wU

B‡jKUªb I 1 wU wbDUªb we`¨gvb| H †gŠ‡ji cigvYyi fi msL¨v KZ?

K m+n L n+1 M m+1 N m+n+1 30. (i) wPwb, (ii) M−y ‡KvR, (iii) A vj‡Kvnj, (iv)

†mvwWqvg †K¬vivBW| Dc‡ii †KvY¸‡jv Zwor Awe‡k−l¨ ?

K (i), (ii), (iii) L (i), (ii), (iii) M (ii), (iii), (iv) N (i), (iii), (iv) 31. wkLv cix¶vq GKwU jeY Aby¾¡j eyb‡mb

`x‡c cÖ‡ek Kiv‡bvi ci wkLvi eY© †e¸bx n‡j jeYwU †Kvb& avZzi?

K cUvwkqvg L †mvwWqvg M K¨vjwmqvg N A¨vjywgwbqvg 32. cwieZ©bkxj †hvRbx cÖ k©b K‡i †Kvb&

†gŠjwU? K A¨vjywgwbqvg L wRsK M †K¬vwib N mvjdvi 33. GKwU M−v‡m cvwb wb‡q Zv‡Z GK UzKiv

KMnO4 †djv nj, hv M−v‡mi Zj‡`‡k _v‡K| wKQy¶Y ci † Lv †Mj †h, KMnO4 mg¯� cvwb‡Z Qwo‡q †M‡Q G NUbvi bvgÑ

K eªvDbxq MwZ L e¨vcb M `ªeY N ivmvqwbK wewµqv 34. CO(g) + H2O(g) F CO2(g) + H2(g) +

41 kJ GB wewµqvqÑ (i) ZvcgvÎv evo‡j wewµqvi †eM evo‡e (ii) ZvcgvÎv evo‡j wewµqvi mvg¨ve¯’v

Wvbw`‡K m‡i hv‡e (iii) ZvcgvÎv evo‡j wewµqvi mvg¨ve¯’v

evgw`‡K m‡i hv‡e| (iv) Pvc evo‡j mvg¨ve ’vi †Kvb cwieZ©b n‡e bv| Dc‡ii †Kvb¸‡jv mwVK? K (i), (ii), (iii) L (ii), (iii), (iv) M (i), (ii), (iv) N (i), (iii), (iv) 35. ivmvqwbK wewµqvq Zvckw³ cwieZ©‡bi KviYÑ K ivmvqwbK eÜ‡bi fvOv L ivmvqwbK eÜ‡bi Mov M ivmvqwbK eÜ‡bi fvOv I Mov N B‡jKUª‡bi Av`vb-cÖ vb

DËigvjv

1 K 2 N 3 L 4 K 5 M 6 L 7 N 8 M 9 L 10 K 11 N 12 M 13 K 14 N 15 L 16 M 17 L 18 N 19 M 20 M 21 K 22 K 23 L 24 N 25 M 26 L 27 K 28 N 29 M 30 L 31 K 32 N 33 L 34 N 35 M

43. PÆMÖvg †evW©-2004 imvqb : ˆbe© w³K cÖkœ

1. †mvnvMvi ivmvqwbK bvg †KvbwU ? K †mvwWqvg Kve©‡bU L †mvwWqvg bvB‡UªU

M †mvwWqvg cvB‡iv‡ev‡iU N †mvwWqvg †K¬vivBW 2. evZ¨vPzj−xi gva¨‡g †Kvb †jvnvwU cvIqv hvq ?

K XvjvB †jvnv L †cUv †jvnv M B¯•vZ N weï× †jvnv 3. ÒZwor we‡k−lYÓ GKwUÑ


K kw³kvjx RviY cÖwµqv L kw³kvjx weRviY cÖwµqv M kw³kvjx RviY-weRviY cÖwµqv N `ye©j weRviY cÖwµqv 4. †Kvb ivmvqwbK wewµqvi mgq eÜb m„wó‡Z

wbM©Z kw³i cwigvY eÜb fvOvi cÖ‡qvRbxq kw³i †P‡q †ewk n‡jÑ

K wewµqvwU Zvcnvix L wewµqvwU Zvc Drcv x M wewµqvwU DfgyLx N wewµqvwU GKgyLx 5. wb‡Pi †hŠM¸‡jv nj wewfbœ ai‡bi A·vBW,

Al2O3, ZnO, CrO3, Na2O, MgO, CO. G¸‡jvi g‡a¨ Al2O3 nj GKwUÑ

K Aèxq A·vBW L ¶viKxq A·vBW M wbi‡c¶ A·vBW N Dfag©x A·vBW 6. wb‡Pi †Kvb je‡Yi `ªe‡Y wmjfvi bvB‡UªU

`ªeY †hvM Ki‡j `wai gZ mv`v Aat‡¶c m„wó nq ?

K bvB‡UªU L †K¬vivBW M mvj‡dU N mvjdvBW 7. ÒDrm hvB †nvK bv †Kb GKB †hŠ‡M GKB

†gŠjmg�n Zv‡`i f‡ii GKwU wbw`©ó Abycv‡Z hy³ _v‡KÓÑ Bnv wb‡Pi †KvbwU ?

K wecixZ AbycvZ m�Î L f‡ii wbZ¨Zv m�Î M w¯’ivbycvZ m�Î N ¸YvbycvZ m�Î 8. HCl-Gi MÖvg AvYweK fi KZ ? K 36.5g L 36.0g M 36.5 N 36.0 9. †Kvb †gŠ‡ji cigvYy‡Z a wU †cÖvUb I c wU

wbDUªb we`¨gvb| H †gŠ‡ji cigvYyi fimsL¨v KZ ?

K a − c L a + c M a N c 10. FeCl3 †hŠ‡M Avqi‡bi mwµq †hvRbx KZ ? K 1 L 2 M 3 N 4 11. (i) nvB‡Wªv‡Rb; (ii) wWD‡Uwiqvg; (iii)

wUªwUqvg| nB‡Wªv‡R‡bi AvB‡mv‡Uvc nj Dc‡iiÑ

K (i) I (ii) L (ii) I (iii) M (i) I (iii) N (i), (ii), (iii) 12. GKwU †gŠ‡ji cigvYyi me©‡kl K¶c‡_ AvUwU

B‡jKUªb we`¨gvb| †gŠjwUi Ae¯’vb ch©vq mviYxi †Kvb MÖ“‡c ?

K VIIIA MÖ“‡c L k�b¨ (0) MÖ“‡c M VIII B MÖ“‡c N I A MÖ“‡c 13. Na+OH−(aq) + H+Cl−(aq) = Na+Cl−(aq) +

H2O. G wewµqvi Avqb¸‡jv nj (i) Na+, (ii)

OH−, (iii) Cl−, (iv) H+ G¸‡jvi g‡a¨ `k©K Avqb †Kvb¸‡jv ?

K (i) I (iii) L (ii) I (iii) M (iii) I (iv) N (i) I (iv) 14. AavZz nIqv m‡Ë¡I †Kvb †gŠjwU weRviK ? K Aw·‡Rb L bvB‡Uªv‡Rb M wmwjKb N Kve©b

15. NO(g) + 12 O2(g) = NO2(g). G wewµqvq

mvg ve ’vq Pvc cÖ‡qvM Ki‡j wK NU‡e ? K wewµqv eÜ n‡q hv‡e L wewµqv wcQ‡bi w`‡K AMÖmi n‡e M wewµqv mvg‡bi w`‡K AMÖmi n‡e N ewa©Z Pvc wewµqv‡K cÖfvweZ Ki‡e bv| CH2 ⎯ OH | 16. CH ⎯ OH n‡”Q GKwUÑ | CH2 ⎯ OH K A¨vjwWnvBW L A¨vj‡Kvnj M GwmW N G÷vi 17. ivmvqwbK wewµqvq Zvc cwieZ©‡bi

cwigvY‡K †Kvb GK‡K cÖKvk Kiv nq ? K wK‡jvK¨vjwi L K¨vjwi M Ryj N wK‡jvRyj 18. †Kvb avZzwU DËß Ae¯’vq Aw·‡R‡bi mv‡_

wewµqv K‡i mycvi A·vBW Drcbœ K‡i ? K cUvwmqvg L †mvwWqvg M K¨vjwmqvg N g¨vM‡bwmqvg 19. wb‡Pi †KvbwU Zwor Awe‡k−l¨ ? K CuSO4 `ªeY L NaCl `ªeY M wPwbi `ªeY N GwmW wgwkÖZ cvwb 20. wb‡Pi †Kvb †hŠMwU Am¤•„³ ? K CH3 ⎯ CH2 ⎯ OH L CH3 ⎯ CH = CH2 M CH3 ⎯ CH2 ⎯ CH3

N CH3 ⎯ CH ⎯ CH3 | CH3 21. ejq cix¶vi mvnv‡h¨ wb‡Pi †Kvb Avq‡bi

Dcw¯’wZ wbwðZfv‡e cÖgvwYZ nq ? K bvB‡UªU Avqb L mvj‡dU Avqb M Kve©‡bU Avqb N mvjdvBW Avqb 22. ch©vq mviYxi GKB ch©v‡q hZB Wvb w`‡K

hvIqv hvq Z‡ZvB †gŠmg�‡ni (i) cigvYyi AvKvi n«vm cvq; (ii) cigvYyi AvKvi e„w× cvq; (iii) avZe ag© n«vm cvq; (iv) avZe e„w× cvq|

K (i) I (ii) L (ii) I (iii) M (iii) I (iv) N (i) I (iii) 23. GKwU cix¶v b‡j Kcvi mvj‡dU ªeY wb‡q

Zv‡Z Aí cwigvY A v‡gwbqv ªeY †hvM Ki‡j wK NU‡e ?

K bxjvf mv`v e‡Y©i Aat‡¶c co‡e L Mvp bxj e‡Y©i Aat‡¶c co‡e M Mvp meyR e‡Y©i Aat‡¶c co‡e N mv`v e‡Y©i †Rjxi gZ Aat‡¶c co‡e 24. wb‡Pi †KvbwU AavZz ? K Zvgv L †jvnv M ¯Y© N Aw·‡Rb 25. cigvYy I AYyi eZ©gvb msÁv cÖ vb K‡ib †Kvb

weÁvbx ? K A¨v‡fv‡M‡Wªv L ev‡R©wjqvm M Wvëb N wiKUvi 26. †Kvb †hŠM g�jKwU GK‡hvRx ? K PO4 L CrO4 M SiO3 N CN 27. wnwjqvg, wbqb, AvM©b, wµcUb, †Rbb I

†iWb G¸‡jv nj wbw®Œq M¨vm| G¸‡jvi g‡a¨ †KvbwUi me©ewnt¯’ ¯�‡i gvÎ `yBwU B‡jKUªb Av‡Q ?

K wbqb L wnwjqvg M †iWb N †Rbb 28. wb‡Pi †Kvb †hŠMwU‡Z AvqwbK eÜb we ¨gvb ? K CO2 L H2O M MgO N CH4 29. 2FeCl2 + Cl2 = 2FeCl3 GB wewµqvqÑ K Avqi‡bi †hvRbx e„w× †c‡q‡Q L Avqi‡bi †hvRbx n«vm †c‡q‡Q M Avqi‡bi †hvRbx AcwiewZ©Z i‡q‡Q N †K¬vwi‡bi †hvRbx e„w× †c‡q‡Q 30. O–2-G B‡jKUªb msL¨v KZ ? K 2 L 4 M 8 N 10 31. Zwor we‡k−l‡Yi mgq †h ZwoØvi‡K evB‡ii

we`y r Dr‡mi abvÍK cÖv‡š�i mv‡_ hy³ Kiv nq Zv‡K ejv nqÑ

K K¨v‡_vW L A¨v‡bvW M A¨vbvqb N K¨vUvqb 32. bvB‡Uªv‡Rb AYyi MVb n‡”QÑ K N − N L N = N M N ≡ N N N : N 33. M −yevi je‡Yi ms‡KZ †KvbwU ? K Na2SO4.10H2OL MgSO4.7H2O M ZnSO4.7H2O N FeSO4.7H2O CH3 | 34. CH3 ⎯ C ⎯ CH3 GB †hŠMwUi AvaywbK | CH3 bvg wK ? K AvB‡mv‡c‡›Ub L wbI‡c‡›Ub M 2-wg_vBj weD‡Ub N 2,2-WvBwg_vBj †cÖv‡cb 35. K¨vjwmqv‡gi B‡jKUªb web¨vm †KvbwU ? K 2,8,9,1 L 2,8,8,2 M 2,8,8,3 N 2,8,10

DËigvjv 1 M 2 K 3 M 4 L 5 N 6 L 7 M 8 K 9 L 10 M 11 N 12 L 13 K 14 N 15 M 16 L 17 N 18 K 19 M 20 L 21 K 22 N 23 L 24 N 25 M 26 N 27 L 28 M 29 K 30 N 31 L 32 M 33 K 34 N 35 L

44. PÆMÖvg †evW©-2003 imvqb : ˆbe© w³K cÖkœ 1| †Kvb ivmvqwbK ms‡KZwU mwVK ? K. CaCO2 L. Cu3SO4 M. Na2S2O3 N. AlCl4

2| cix¶vMv‡i KuvPbj KvUvi Rb¨ wb‡Pi †KvbwU e¨eüZ nq ?

K. †¯•Pzjv L. gU©vi M. PvKz N. wÎ‡KvYvKvi‡iK

3| ˆRe Gwm‡Wi Kvh©Kixg�jK n‡”Q⎯ K. C L.

O

OH C

O

OH


M. N. 4| †Kvb c`v_©wUi wjUgv‡mi Dci wµqv †bB ? K. CO L. CO2 M. H2S N. H2CO3 5| †KvbwU‡K Pig Iron ejv nq ? K. Kv÷ Avqib L. w÷j M. iU Avqib N. †ngvUvBU 6| †KvbwU AavZz ? K. Avqib L. wmjfvi M. mvjdvi N. Kcvi 7| wb‡Pi †KvbwUi „pZv Av‡Q ? K. jeY L. nvB‡Wªv‡Rb M. cvwb N. Kve©b WvBA·vBW 8| wb‡æi †KvbwU AYy MVb K‡i bv ? K. †d¬vwib L. mvjdvi M. †eªvwgb N. wbqb 9| Ò†Kvb M¨v‡mi AvYweK fi Zvi ev®•Nb‡Z¡i

wØ¸YÓ⎯ G Dw³wU Kvi ? K. A¨v‡fv‡M‡Wªv L. Rb Wvëb M. ev‡R©wjqvm N. d¨viv‡W 10| A¨v‡fv‡M‡Wªv msL¨v ej‡Z eySvq ⎯ K. GK MÖvg e ‘‡Z AYyi msL¨v L. GK MÖvg e ‘‡Z cigvYyi msL¨v M. GK †gvj e ‘i AYyi msL¨v N. GK wjUvi e ‘‡Z cigvYyi msL¨v 11| 17g A¨v‡gvwbqv‡Z AYyi msL¨v KZ ? K. 3.346 × 1022 wU L. 6.023 × 1023 wU M. 6.023 × 1024 wU N. 17 wU 12| WvB‡µv‡g‡Ui ms‡KZ †KvbwU ? K. Cr2O7 L. Cr2O4 M. Cr2O2 N. CrO4 13| Boron bvgwU †Kvb fvlv †_‡K G‡m‡Q ? K. Bs‡iwR L. j¨vwUb M. Aviex N. wn›`x

14| cvigvYweK e¨vmva© 1A° = KZ ? K. 10-13cm. L. 1010cm. M. 108 cm. N. 10–8 cm. 15| GKwU B‡jKUªb GKwU H cigvYy †_‡K KZ¸Y nvj&Kv ? K. 1837 ¸Y L. 1838 ¸Y M. 1218 ¸Y N. 1808 ¸Y 16| Kve©b cigvYy KqwU B‡jKUªb †kqvi K‡i ? K. PviwU L. yBwU M. wZbwU N. GKwU 17| mg‡hvRx †hŠM †KvbwU ? K. NaCl L. MgCl2 M. PCl3 N. AlCl3 18| ch©vq mviYx‡Z bvB‡Uª v‡R‡bi Ae ’vb †Kv_vq ? K. MÖ“c I L. MÖ“c V M. MÖ“c III N. MÖ“c VII 19| Ae ’vš�i †gŠj meB⎯ K. AcavZz L. †hŠM g�jK M. AavZz N. avZz 20| 2HgO = 2Hg + O2 G wewµqvwU⎯ K. cvwb †hvRb L. wØ-we‡hvRb M. we‡hvRb N. cÖwZ ’vcb 21| Kqjvi g�j Dcv`vb †KvbwU ? K. MÖvdvBU L. Kve©b M. wRsK N. Kve©b g‡bv·vBW 22| wewµqvi MwZi Ici cÖfve †bB †KvbwUi ? K. ZvcgvÎv L. wewµq‡Ki NbgvÎv M. cÖfveK N. wewµqv cv‡Îi AvKvi 23| †Kvb wewµqv Am¤•�Y© ? K. wecixZgyLx L. DfgyLx M. mgvš�ivj N. GKgyLx 24| K¨vUvqb AvK…ó nq⎯ K. ªe‡Y L. †fvëv wgUv‡i M. A¨v‡bv‡W N. K¨v‡_v‡W 25| A¨vw¤•qvi wK‡mi GKK ? K. we y r cÖev‡ni L. MwZi M. ‰e y wZK wef‡ei N. ZvcgvÎvi 26| nvB‡Wªv‡R‡bi `nb Zvc n‡”Q⎯ K. −1560 kJ/mole L. −242kJ/mole

M. −57.3 kJ/mole N. −57.3 kJ/mole 27| Zvcnvix wewµqvq Zv‡ci wK N‡U ? K. Drcv`b N‡U L. Zvckw³ ˆe y wZK kw³‡Z iƒcvš�wiZ nq M. Zv‡ci †kvlY N‡U N. †KvbwUB N‡U bv 28| B¯•vZ n‡”Q ⎯ K. weï× Avqib L. ^í cwigvY Kve©bhy³ AvqiY M. GKwU †gŠj N. †jvnvi AvKwiK 29| µvBIjvBU-Gi ms‡KZ †KvbwU ? K. Na2AlF3

L. Na2AlF5 M. Na3AlF6. 2H2O N. Na3AlF6 30| wb‡æi †Kvb avZz wkLv cix¶vq †Kvb eY© †`Lvq bv ? K. †mvwWqvg L. g¨vM‡bwmqvg M. cUvwmqvg N. Kcvi 31| †KvbwU n‡Z meyR KuvP cvIqv hvq ? K. †Kvevë L. Avqib M. †evib N. †µvwgqvg 32| †Kvb †hŠMwU LyeB welv³ ? K. Kve©b WvBA·vBW L. wmwjKb WvBA·vBW M. Kve©b g‡bv·vBW N. A¨v‡gvwbqv 33| wb‡æi †Kvb A·vBW Dfag©x ? K. ZnO L. Na2O M. MgO N. K2O 34| †Kvb RvZxq †hŠM cwjgvi MVb K‡i ? K. ˆRe GwmW L. A¨vjwKb M. A¨vj‡Kvnj N. A¨vj‡Kb 35| ˆZj ev Pwe© n‡”Q ⎯ K. G÷vi L. A¨vj‡Kvnj M. GwmW N. B_vi

DËigvjv 1 M 2 N 3 M 4 K 5 K 6 M 7 K 8 N 9 K 10 M 11 L 12 K 13 M 14 N 15 L 16 K 17 M 18 L

19 N 20 M 21 L 22 N 23 L 24 N 25 K 26 L 27 M 28 L 29 N 30 L 31 N 32 M 33 K 34 L 35 K 45. PÆMÖvg †evW©-2002 imvqb : ˆbe© w³K cÖkœ

1| †Kvb avZzi jeY wkLv cix¶vq †e¸wb wkLvi m„wó K‡i ?

K. cUvwmqvg L. K¨vjwmqvg M. g¨vM‡bwmqvg N. A¨vjywgwbqvg

2| GK MÖvg MÖvdvBU‡K Aw·‡R‡b †cvov‡j KZ MÖvg Kve©b WvBA·vBW cvIqv hvq ?

K. 3.67 MÖvg L. 1.3 MÖvg M. 44 MÖvg N. 12 MÖvg

3| evqy �l‡Yi GKwU cÖavb M¨vm wb‡æi †KvbwU ? K. Kve©b WvBA·vBW L. bvBwUªK A·vBW M. Kve©b g‡bv·vBW N. bvBUªvm A·vBW 4| †KvbwU jvwds M¨vm ?

O

OH

C

H

OH

C


K. N2O3 L. NO2 M. NO N. N2O 5| wb‡æi †KvbwU eû ˆRe iÄK c`v_©‡K weRvwiZ K‡i

eY©nxb K‡i ? K. †K¬vwiY L. mvjdvi WvBA·vBW M. Kve©b N. Kve©b g‡bv·vBW 6| ivmvqwbK c`v_©mg�‡ni ivRv †KvbwU ? K. bvBwUªK GwmW L. B_vbj M. mvjwdDwiK GwmW N.G÷vi 7| wmwjÛv‡i K‡i ivbœvi †h M¨vm wewµ Kiv nq Zv

cÖavbZ wK ? K. wg‡_b L. B‡_b M. G¨vwmwUwjb N. weD‡Ub 8| †nUv‡iv A¨v‡iv‡gwUK †hŠM †KvbwU ? K. wcwiwWb L. Bw_wjb A·vBW M. mvB‡K¬vweD‡Ub N. †ebwRb 9| cÖwZw`b M‡o KZ ‡jv bZzb e ‘ Avwe ‹…Z n‡”Q ? K. 200wU L. 100wU M. 2000wU N. 109wU 10| DcavZz b‡n †KvbwU ? K. †evib L. Av‡m©wbK M. wmwjKb N. nxiK 11| ev®• Ae ’vq †KvbwU cigvYy‡Z wef³ nq ? K. cvwb L. Lvevi jeY M. ¯Y© N. GwmW 12| †KvbwU †hŠwMK c`v_© b‡n ? K. KvMR L. gv_vi Pzj M. Kvco N. evZvm 13| j¨vb‡Wv‡ëi cix¶vq †Kvb avZzi Aat‡¶c c‡o ? K. Zvgv L. `¯ �v M. i“cv N. ¯Y© 14| †KvbwU dmdiv‡mi B‡jKUªb web¨vm ? K. 2,8,2 L. 2,8,4 M. 2,8,5 N. 2,8,3 15| f‚-Z¡‡Ki IR‡bi kZKiv KZ fvM †jvnv ? K. 3.15 fvM L. 5.31 fvM M. 2.13 fvM N. 4.15 fvM 16| wb‡æi †Kvb avZz‡K Kve©b weRviY cÖwµqvq wb®‹vkb

Kiv nq ? K. †mvwWqvg L. wR¼

M. g¨vM‡bwmqvg N. A¨vjywgwbqvg 17| Lvevi jeY I K¨vjwmqvg †K¬vivB‡Wi wgkÖ‡Yi Mjbv¼

KZ ? K. 5000 †mt L. 8010 †mt M. 6000 †mt N. 12000 †mt 18| wb‡gœi †KvbwU Aèxq A·vBW ? K. CO L. ZnO M. CrO3 N. Al2O3 19| mvjdvi AYyi mwVK ms‡KZ †KvbwU ? K. S4 L. S2 M. S N. S8 20| cvi‡K¬vwiK Gwm‡W Aw·‡R‡bi kZKiv mshyw³ KZ

? K. 0.995% L. 35.3% M. 63.68% N. 32% 21| _v‡qvmvj‡dU †hŠM g�j‡Ki ms‡KZ †KvbwU ? K. Na2S2 L. S2O3 M. AS2O3 N. S3O2 22| GKwU ÔiÕ-Gi wb‡P we› y cwigvY RvqMv‡Z KZ¸‡jv

Kve©b cigvYy _vK‡Z cv‡i ? K. cuwPk †KvwU L. 20 j¶ M. cuwPk nvRvi †KvwU N. cuvPkZ †KvwU 23| †Kvj‡qW wK ? K. weï× ªeY L. weï× ªeY Ges AmgmË¡ wgkÖ‡Yi ga¨eZ©x Ae ’v M. wgkÖY I †hŠ‡Mi mgmË¡ ªeY N. AmgmË¡ †hŠM 24| evRv‡i kie‡Zi ïK‡bv uov cvIqv hvq cvwb‡Z

w`‡j M¨vm Drcbœ nq| Dnv‡Z wK‡mi ïK‡bv ¸uov _v‡K ?

K. †mvwWqvg Kve©‡bU I GwmwUUK GwmW L. †mvwWqvg evBKve©‡bU I GwmwUK GwmW M. †mvwWqvg evBKve©‡bU I mvBwUªK GwmW N. WªvB AvBm I mvBwUªK GwmW 25| CaO + CO2 = CaCO3 wK cÖKvi wewµqv ? K. ms‡k−lY L. ms‡hvRb M. cÖwZ ’vcb N. weRviY 26| O2− Avq‡b B‡jKUªb msL¨v KZ ? K. 7 L. 8

M. 9 N. 10 27| B_vbwqK Gwm‡Wi mv‡_ wK‡mi wewµqvq G÷vi

ˆZwi nq ? K. B‡_b L. B_vbj M. Bw_wjb N. mvjwdDwiK GwmW 28| AvaywbK wWUvi‡R‡›Ui mv‡_ †Kvb †hŠMwU hy³ _v‡K

? K. †mvWv G¨vm L. †mvwWqvg evBKve©‡bU M. †mvwWqvg cwjdm‡dU N. †mvwWqvg nvB‡Wªv·vBW 29| GwmwUK Gwm‡Wi wg_vBj MÖ“c‡K AvµgY K‡i

wb‡æi †KvbwU ? K. Na L. PCl3 M. PCl5 N. Cl2 30| CH3 − C ≡ C − CH3 GB †hŠMwUi bvg wK ? K. 3ÑweDUvBb L. 3ÑweDwUb M. 2ÑweDUvBb N. 2ÑweDwUb 31| nvB‡Wªv‡RvwqK Gwm‡Wi MvVwbK ms‡KZ †KvbwU ? K. H−N=N≡N L. H−H≡N=H M. N≡N=NH N. N≡N−H=N 32| †jLvi Kvwj ˆZwi‡Z †KvbwU e¨eüZ nq ? K. ZnSO4, 7H2O L. Al2(SO4)3, 24H2O M. FeSO4, 7H2O N. CuSO4, 5H2O 33| †j‡Wi wPwb †KvbwU‡K ejv nq ? K. jvj †jW L. †jW A¨vwm‡UW M. †UUªvB_vBj †jW N. †jW g‡bv·vBW 34| AwMœ Drcv`K †evgv Zwi‡Z †KvbwU e eüZ nq ? K. Ca L. Na M. Pb N. Mg 35| †gŠ‡ji cigvYyi fi‡K G. Gg. BD GK‡K cÖKvk

Ki‡j Zvi cvigvYweK fi nq− K. GKwU msL¨v L. GKK wewkó msL¨v M. yBwU msL¨v N. PviwU msL¨vDËicÎ

DËigvjv 1 K 2 K 3 K 4 N 5 K 6 M 7 K 8 K 9 M 10 N 11 M 12 N 13 M 14 M 15 N 16 L 17 M 18 M

19 N 20 M 21 L 22 M 23 L 24 M 25 L 26 N 27 L 28 M 29 N 30 M 31 K 32 M 33 L 34 L 35 K 46. PÆMÖvg †evW©-2001 imvqb : ˆbe© w³K cÖkœ

1| nvB‡Wªv‡R‡bi ùzUbv¼Ñ K. Ñ253° †mt L. +253° †mt M. -259° †mt N. +259° †mt 2| †KvbwU ivmvqwbK cwieZ©b?

K. †jvnv hLb Nl©‡Yi Øviv Pz¤KZ¡ cÖvß nq L. eûw`b Av ª© evZv‡m GK UzKiv †jvnv‡K †i‡L

w`‡j hLb gwiPv c‡o M. cvwb‡K Zvc w`‡j hLb ev‡®• cwiYZ nq

N. wPwb‡K cvwb‡Z ªexf‚Z Kiv nq 3| wb‡Pi †KvbwU cigvYy Ae ’v‡ZB †_‡K hvq, AYy nq

bv ? K. Hydrogen L. Oxygen


M. Carbon N. Neon 4| †Kvb wewµqvwU mwVK ? K. 2FeSO4+Ag2SO4=2Ag+Fe2(SO4)3 L. FeSO4+Ag2SO4= Ag+Fe2(SO4)3 M. FeSO4+AgSO4 = Ag+FeSO4

N. 3FeSO4+Ag2SO4=3Ag+Fe2(SO4)3 5| A¨v‡fvM¨v‡Wªv msL¨v †KvbwU ? K. N = 6.023 × 10 23

L. N = 22.4 wjUvi M. N = 6.023 × 1023

N. N = 5.0 × 1022 6| me©cÖ_g AYyi aviYv cÖeZ©b K‡ibÑ K. êÁvwbK †M jym¨vK L. ‰eÁvwbK A¨v‡fv‡M‡Wªv M. êÁvwbK WvjUb N. êÁvwbK ev‡R©wjqvm 7| mvjwdDwiK Gwm‡Wi AvYweK fiÑ K. 97.08 L. 98.80 M. 98.08 N. 97.80 8| A¨vwmwUwj‡bi MvVwbK ms‡KZÑ K. H − C ≡ C − H L. H − C = C − H M. H = C − C = H N. H ≡ C − C − H 9| fi msL¨v Kv‡K e‡j? K. cigvYy‡Z Aew¯’Z B‡j±«b I †cÖvUb msL¨v‡K L. cigvYy‡Z Aew¯’Z wbDUªb I B‡j±«b msL¨v‡K M. wbDwK¬qv‡m Aew ’Z †gvU †cÖvUb msL¨v‡K N. wbDwK¬qv‡m Aew ’Z †cÖvUb I wbDUª‡bi †gvU

msL¨v‡K 10| wWD‡Uwiqvg I wUª wUqvg Kvi AvB‡mv‡Uvc? K. bvB‡Uªv‡Rb L. nvB‡Wªv‡Rb M. Kve©b N. Aw·‡Rb 11| †KvbwU wbw®Œq M¨vm bq ? K. AvM©b L. †Rbb M. G¨v‡gvwbqv N. wµÞb 12| ivmvqwbK eÜb ejv nqÑ K. †h kw³i e‡j c v_©mg�n ci •‡ii mv‡_ hy³ _v‡K L. †h kw³i e‡j avZzmg�n ci¯•‡ii mv‡_ hy³ _v‡K M. †h kw³i e‡j †cÖ vUb I wbDUªb ci •‡ii mv‡_ hy³

_v‡K

N. †h kw³i e‡j AYy‡Z cigvYy ‡jv ci •‡ii mv‡_ hy³ _v‡K 13| ch©vq mviYx‡Z bvB‡Uª v‡R‡bi Ae ’vb †Kv_vq? K. MÖ“c IA L. MÖ“c IIIA M. MÖ“c VA N. MÖ“c VIIA 14| ch©vq mviYxi mwZ¨Kvi wfwË wK ? K. cvigvYweK fi L. cvigvYweK msL¨v M. B‡jKUªb web¨vm N. Zzj¨vsK 15| †KvbwU ms‡k−lY wewµqv? K. 2Na + Cl2 = 2NaCl L. CaCO3 = CaO + CO2 M. H2SO4 + Zn = ZnSO4 + H2

N. 2HgO = 2Hg + O2 16| K…wÎg wN ˆZwi‡Z †KvbwU cÖfveK wnmv‡e eënvi

Kiv nq ? K. Kcvi P‚Y© L. wb‡Kj P‚Y© M. †jŠn P‚Y© N. `¯ �v P‚Y© 17| wewµqKmg�‡ni NbgvÎv evov‡j wewµqvi MwZ wKiƒc

nq ? K. wewµqvi MwZ K‡g L. wewµqvi MwZ e„w× cvq M. wewµqvi MwZ AcwiewZ©Z _v‡K N. wewµqv eÜ n‡q hvq 18| †mvwWqv‡gi B‡jKUªb web¨vm †KvbwU ? K. 2, 8, 1 L. 2, 7, 2 M. 2, 8, 2 N. 2, 7, 3 19| wb‡Pi †KvbwU Zwor Awe‡k−l¨? K. Kcvi mvj‡dU L. GwmW wgwkÖZ cvwb M. Lv`¨ jeY N. M−y‡KvR 20| K¨v‡_vW‡K wK e‡j? K. abvÍK ZworØvi L. wbi‡c¶ ZworØvi M. FYvÍK ZworØvi N. A¨v‡gUvi 21| †h wewµqvq Zvc †kvwlZ nq Zv‡K e‡jÑ K. Zvcnvix wewµqv L. Zv‡cvrcv`x wewµqv M. Zvc‡ivax wewµqv N. Zvc i¶x wewµqv 22| †Wwb‡qj †m‡j FYvÍK cÖvš� n‡”QÑ K. wRsK `Ê L. Kcvi `Ê M. Kve©Y `Ê N. Kcvi mvj‡dU ªeY 23| K¨vjvgvBb n‡jvÑ K. Kcv‡ii AvKwiK L. G vjywgwbqv‡gi AvKwiK M. †jvnvi AvKwiK N. wRs‡Ki AvKwiK 24| wb‡æi †Kvb ms‡KZwU mv`v wfwUªq‡ji? K. Zn SO4 . 7H2O L. Na2 Zn (OH)4

M. NaAl (OH)3

N. Al2 (SO4)3. 2H2O 25| Zwor we‡k−lY ØvivÑ K. Kcvi avZz‡K weï× Kiv nq L. Kcvi avZzi wb®‹vkb Kiv nq M. Kcvi AvKwiK‡K weï× Kiv nq N. Avqib avZzi wb®‹vkb Kiv nq 26| w ’ivbycvZ m�ÎwUi Avwe®‹viK †K ? K. j¨vfqwm‡q L. cÖvDm M. wiKUvi N. †M jymvK 27| wkLv cix¶vq D¾¡j †mvbvjx njy` e‡Y©i wkLv ˆZwi

K‡iÑ K. cUvwmqvg avZz L. Kcvi avZz M. †mvwWqvg avZz N. wRsK avZz 28| wg‡_b AYyi AvK…wZ wKiƒc nq ? K. îwLK L. †KŠwYK M. wcivwgWxq N. PZz �jKxq 29| AvaywbK wbivc` w`qvkjvB‡qi KvwVi AMÖfv‡M cÖavbZt

_v‡KÑ K. cUvwmqvg †K¬v‡iU L. †k¦Z dmdivm M. †jvwnZ dmdivm N. mvjdvi 30| †KvbwU eûiƒcx †gŠj? K. K¨vjwmqvg L. cUvwmqvg M. mvjdvi N. bvB‡Uªv‡Rb 31| †Kvb ms‡KZwU A vjKvBb g�j‡Ki mvaviY ms‡KZ ? K. Cn H2n + 2 L. Cn H2n + 1 M. Cn H2n - 2 N. Cn H2n 32| M −y‡Kv‡Ri ms‡KZ †KvbwU ? K. C6H6 L. C12H22O11 M. C12H6O6 N. C6H12O6 33| GK K¨vjwi KZ Ry‡ji mgvb? K. 1000 Ryj L. 4.18 Ryj M. 4.50 Ryj N. 100 Ryj 34| wb‡Pi †Kvb Dcv`vb¸‡jvi mvnv‡h¨ weÁvbvMv‡i

Aw·‡Rb M¨vm cÖ ‘Z Kiv hvq? K. gv‡e©j cv_i I nvB‡Wªv‡K¬vwiK GwmW L. G¨v‡gvwbqvg †K¬vivBW I K¨vjwmqvg A·vBW M. cUvwmqvg †K¬v‡iU I g¨v½vwbR WvB A·vBW N. `¯ �v I mvjwdDwiK GwmW 35| wb‡Pi †KvbwU †ú‡KW jvBgÑ K. KOH L. NaOH M. CaO N. Ca(OH)2

DËigvjv 1 K 2 L 3 N 4 K 5 M 6 L 7 M 8 K 9 N 10 L 11 M 12 N 13 M 14 M 15 K 16 L 17 L 18 K

19 N 20 M 21 K 22 K 23 N 24 K 25 K 26 L 27 M 28 N 29 K 30 M 31 M 32 N 33 L 34 M 35 N

47. wm‡jU †evW©-2009 imvqb : ˆbe© w³K cÖkœ

†evW© cix¶vi cªkœ I DËi : ˆbe© w³K wm‡jU †evW©


mgq-35 wgwbU; c �Y©gvb -35 [we‡kl `ªóe¨ : mieivnK…Z ˆbe© w³K Afx¶vi DËic‡Î cÖ‡kœi µwgK b¤^‡ii wecix‡Z cÖ Ë eY©m¤^wjZ e„Ëmg�n n‡Z mwVK/m‡e©vrK…ó DË‡ii e„ËwU

ej c‡q›U Kjg Øviv m¤•�Y© fivU Ki| cÖwZwU cÖ‡kœi gvb 1|] 1. ch©vq mviYx‡Z mvjdvi Gi Ae¯’vb⎯ K MÖ“d I L MÖ“d III M MÖ“d V N MÖ“d VI 2. cvwbi AYyi AvK…wZ wKiƒc ? K îwLK L †KŠwYK M PZz¯�jKxq N wcivwgWxq 3. wewµqvi MwZi Dci cÖfve †bB ⎯ K ZvcgvÎv L wewµq‡Ki

NbgvÎv M cÖfveK N wewµqv cv‡Îi

AvKvi 4. wkí‡¶‡Î mvjdvi-UªvBA·vBW cÖ ‘wZ‡Z

wK cÖfveK eëüZ nq ? K MnO2 L V2O5 M Al2O3 N P2O5

5. †Kvb& avZzwU GwmW n‡Z nvB‡Wªv‡Rb cÖwZ¯’vcb Ki‡Z cv‡i bv ?

K Ag L Fe M Pb N Mg 6. Zvc ivmvqwbK wewµqvq cÖgvY ZvcgvÎv

KZ ? K 0°†m L 100°†m M 25°†m N †KvbwUB bq 7. †Kvb& †hŠMwU welv³ ? K SO2 L SiO2 M NH3 N CO 8. wM−vmvwib GK ai‡bi ⎯ K G÷vi L d¨vwU A¨vwmW M A¨vjwKb N A¨vj‡Kvnj 9. ey ‡iU I wc‡cU ˆZwi‡Z †Kvb&wU eëüZ

nq ? K †jW A·vBW L †µvwgqvg A·vBW M †evib A·vBW N cUvwmqvg A·vBW 10. †mvwWqvg wb®‹vk‡b NaCl I CaCl2

wgkª‡Yi MjbvsK KZ ? K 600° †m L 801° †m M 10000° †m N 2050° †m 11. †dwiK mvj‡dU-Gi eY© wKiƒc ? K ev`vgx L bxj M meyR N jvj 12. †Kvb&wU djg�‡ji cPb‡iv‡a eëüZ nq ?

K CO2 L SO2 M H2S N CaO 13. mKj avZzi †Kvb& jeY cvwb‡Z `ªeYxq ? K Kve©‡bU L mvj‡dU M bvB‡UªU N dm‡dU 14. †Kvb&wU K…wÎg wmé ? K B_vBj A¨vwm‡UU L A¨vgvBj A¨vwm‡UU M †mjy‡jvR A¨vwm‡UU N A¨vwm‡Uvb 15. †Kvb& avZzi je‡Yi `ªe‡Y cUvwmqvg

Av‡qvWvBW `ªeY †hvM Ki‡j njy e‡Y©i Aat‡¶c c‡o ?

K †jW L Kcvi M K¨vjwmqvg N g¨vM‡bwmqvg 16. †Kvb&wU A¨vjwKb ? K C2H6 L C2H2 M C3H6 N C4H10 17. †Kvb& avZzwU wkLv cix¶vq †Kvb eY©

cÖ k©b K‡i bv ? K †mvwWqvg L g¨vM‡bwmqvg M cUvwmqvg N Kcvi 18. †eªvwg‡bi eY© wKiƒc ? K Kv‡jv L jvj M bxj N meyR 19. †Kvb&wU wRsK-Gi AvKwiK ? K mvwRgvwU L e·vBU M K¨vjvgvBb N g¨vM‡bUvBU 20. †Kvb& avZzwU †K‡ivwmb ev †c‡Uªv‡ji wb‡P

ivLv nq ? K Ca L Fe M Cu N Na 21. Kve©b-WvBA·vBW M¨vm‡K Pz‡bi cvwb‡Z

Pvjbv Ki‡j †Kvb&wU ˆZwi n‡e ? K CaCO3 L CaO M CaSO4 N CaCl2

22. †Kvb& †hŠ‡Mi ev®•NbZ¡ 22 ? K NO2 L NO M SO2 N CO2

23. †Kvb& †gŠjwU ivmvqwbK wµqvq AskMÖnY K‡i bv ?

K Na L Pb

M He N Cu 24. †Kvb& M¨vmwU AwMœwbe©vcK wn‡m‡e eëüZ

nq ? K CO L CO2 M H2 N O2

25. †Kvb& g�jKwU ejq cix¶v †`q ? K NH4 L NO3 M CO3 N SO4

26. †Kvb e¯‘i †fZ‡ii c`v‡_©i cwigvY‡K ejv nq⎯

K IRb L fi M †gŠj N †hŠM 27. A¨v‡gvwbqvi ms‡KZ fi KZ ? K 9 L 18 M 32 N 17 28. cigvYy‡Z kw³¯�‡ii aviYv †`b †K ? K Wvëb L iv`vi‡dvW© M †evi N A¨v‡fv‡M‡Wªv 29. †Kvb&wU M −y‡Kv‡Ri ¯’‚j ms‡KZ ? K CHO L CH2O M CHO2 N C2HO 30. CS2-G mvjdv‡ii †hvRbx KZ ? K 2 L 4 M 6 N †KvbwUB bq 31. †Kvb&wU wØ‡hvRxg�jK ? K NH4 L PO4 M S2O3 N HCO3

32. wbDUªb Avwe®‹vi K‡ib †K ? K iv`vi‡dvW© L P¨vWDBK M †evi N Wvëb 33. †K¬vwib cigvY�i me©‰kl ¯�‡i KqwU

B‡jKUªb Av‡Q ? K 2 L 3 M 5 N 7 34. †Kvb&wU mg‡hvRx †hŠM bq ? K wPwb L mvaviY jeY M M −y‡KvR N A¨vj‡Kvnj 35. †g‡Ûjxd KZ mv‡j ch©vq mviYx cÖKvk

K‡ib ? K 1913 L 1916 M 1869 N 1803

DËigvjv 1 N 2 L 3 N 4 L 5 K 6 M 7 N 8 N 9 M 10 K 11 12 L 13 M 14 M 15 K 16 M 17 L 18 L 19 M 20 N 21 K 22 N 23 M 24 L 25 L 26 L 27 N 28 M 29 L 30 K 31 M 32 L 33 N 34 L 35 M



1. ï®‹ B_v‡i ªexf �Z B_vBj Av‡qvWvBW avZe †mvwWqv‡gi mv‡_ DËß Ki‡j wK Drcbœ nq ?

K A¨vj‡Kb L †cÖv‡cb

M weD‡Ub N weDwUb 2. C5H12 AvYweK ms‡KZ w ‡q KqwU

mgvYy MVb m¤¢e ? K `yB L wZb M GK N cuvP 3. B_v‡bvwqK Gwm‡Wi mv‡_ PCl5 wewµqv

Ki‡j †KvbwU Drcbœ n‡e ? K CH3COO C2H5 + H2O L CH3COCl + HCl + POCl3 M CH3COCl + H3 PO3 N CH3CH2Cl + HCl + POCl3 4. †KvbwU wØ-jeY ? K cUvm Gjvg L e −y-wfwUªqj

M mv`v wfwUªqj N meyR wfwUªqj 5. †Kvb avZe jeY A¨v‡gvwbqvg A·v‡jU

`ªeY †hv‡M mv`v Aat‡¶c cÖ vb K‡i ? K †mvwWqvg L A¨vjywgwbqvg

M K¨vjwmqvg N `¯�v 6. wb‡gœi †Kvb c`v_©wU‡K DËß Ki‡j

mivmwi ev‡®• iƒcvš�wiZ n‡e ? K evwj L Lv`¨ jeY

M †mvwWqvg N Av‡qvwWb 7. †Kvb c`v_©wU‡Z Avš�:AvYweK kw³

me‡P‡q †ewk ? K Kve©b WvBA·vBW L evwj M cvwb N †K‡ivwmb 8. we−wPs cvDWv‡ii GK AYy‡Z KZwU Dcv`vb

cigvYy we`¨gvb ? K 3 L 4

M 1 N A¨v‡fv‡M‡Wªv msL¨v

9. †Kvb cÖKv‡ii c`v‡_©i †¶‡Î †M-jymvK m�Î cÖ‡hvR¨ ?

K Zij L Zij I M¨vmxq M M¨vmxq N KwVb 10. AvaywbK imvq‡bi cÖwZôvZv wn‡m‡e Kv‡K

AwfwnZ Kiv nq ? K ievU© eªvDb L Rb Wvëb M wiKUvi N j¨vb‡Wvë 11. GK MÖvg MÖvdvBU L‡Ê KZwU AYy we`¨gvb ? K 5.01 × 10–22 L 5.02 × 1012

M 6.023 × 1023N 5.02 × 1022

12. †KvbwU wØ-cigvYyK AYy ? K mvjdvi L dmdivm M †d¬vwib N wnwjqvg 13. cÖgvY ZvcgvÎv I Pv‡c MÖvg cÖwZ wjUvi

GK‡K Aw·‡Rb M¨v‡m NbZ¡ KZ ?

K 1.43 L 2.2016 M 32 N 16 14. abvZ¥K †hŠMg�jK †KvbwU ? K Kve©‡bU L A¨v‡gvwbqv M bvB‡UªU N dm‡dU 15. wb‡gœi †Kvb †mU †gŠj cwieZ©bkxj †hvRbx

cÖ k©b K‡i ? K Ca, K, Al, N L Fe, P, N, S M Mg, O, C, Cu N Cl, C, Zn, Hg 16. Av‡jvi cÖfv‡e †Kvb wewµqvwU msNwUZ nq bv

? K 6H2O + 6CO2 = C6H12O6 L C2H2 = 2C + H2 M CH4 + Cl2 = C + 4HCl N CH4 + 2Cl2 = 2HCl + CH2Cl2 17. †Kvb cÖKv‡ii wewµqvi gva¨‡g

A¨v‡gvwbqvg mvqv‡bU‡K DËß K‡i BDwiqvq iƒcvš�i Kiv nq ?

K cvwb‡hvRb L cÖkgb M mgvbyKiY N cwjgviKiY 18. ivmvqwbK wewµqvi R‡b¨ AZ¨vek¨Kxq

†KvbwU ? K Zvc L Av‡jvK M cÖfveK N wewµq‡Ki cvi¯•wiK ms¯•k© 19. 2NO (g) + O2 = 2NO2(g) wewµqvwUi

mvg¨ve¯’vq Pvc cÖ‡qvM Ki‡j wK n‡e ? K wewµqv eÜ n‡q hv‡e L wewµqv cðvr w`‡K hv‡e M wewµqv mvg‡bi w`‡K AMÖmi n‡e N †Kvb cwieZ©b n‡e bv 20. K¨v‡_v‡W c −vwUbvg ZworØvi wb‡q jNy

NaCl ªe‡Yi Zwor we‡k−lY Ki‡j K¨v‡_v‡W †KvbwU Drcbœ n‡e ?

K Na L Cl2 M H2 N O2 21. K¨vjwmqvg dm‡dU Gi ms‡KZ †KvbwU ? K CaPO4 L Ca (PO4)2 M Ca3 (PO3)2 N Ca3 (PO4)2 22. wWD‡Uwiqvg I wUªwUqvg †Kvb †gŠ‡ji

AvB‡mv‡Uvc ? K bvB‡Uªv‡Rb L nvB‡Wªv‡Rb M Kve©b N wnwjqvg 23. GKwU †gŠ‡j `p' msL¨K †cÖvUb 'n'

msL¨K B‡jKUªb Ges 'q' msL¨K wbDUb we`¨gvb| Gi cvigvYweK fi msL¨v n‡jv ⎯

K p + n L n – q M p + q N p – q 24. wb‡gœi †KvbwU AvqwbK †hŠM ? K MgO L C2H6 M PH3 N CH4

25. g„r¶vi avZzmg�‡ni mwµqZvi µg †KvbwU ?

K Ba > Ca > Sr > Be > Mg L Ba > Sr > Ca > Mg > Be M Be > Mg > Ca > Sr > Ba N Ca > Mg > Be > Sr > Ba 26. Zwor we‡k−lY cÖwµqvq Kcvi mvj‡dU

`ªeY †_‡K GK †gvj Kcvi mwÂZ Ki‡Z wK cwigvY Avavb cÖ‡qvRb ?

K 96500 Kzj¤^ L 2 d¨viv‡W M 3 × 96500 Kzj¤^ N 4 d¨viv‡W 27. ivmvqwbK wewµqvq ∆H- Gi gvb †Kvb

wbqvg‡Ki Dci wbf©ikxj K wewµqK I Drcbœ ª‡e¨i ‡fŠZ

Ae¯’v L ZvcgvÎv M Pvc N Dc‡ii me¸‡jv 28. †Wwb‡qj †Kv‡l †Kvb cÖKv‡i wewµqvwU

mvgwMÖKfv‡e msNwUZ nq ? K Zn + Cu2+ + Cu L Cu + Zn2+ = Cu2+ + Zn M Cu2+ + 2e = Cu N Zn = Zn2+ + 2e 29. evZ¨vPzwj−‡Z †Kvb cÖKv‡ii †jvnv cvIqv hvq

? K XvjvB †jvnv L †cUv †jvnv M B¯•vZ N weï× †jvnv 30. µv‡qvjvB‡Ui Mjbv¼ KZ ? K 900°C L 1000°C M 800°C N 950°C 31. †Kvb avZz ¶v‡ii mv‡_ wewµqv K‡i bv ? K mxmv L `¯�v M Zvgv N A¨vjywgwbqvg 32. wRcmvg‡K 120° †m ZvcgvÎvq DËß

Ki‡j †KvbwU Drcbœ nq ? K K¨vjwmqvg mvj‡dUL c¨vwim

c −v÷vi M CaO + SO2 N ï®‹ wRcmvg 33. Rvbvjvi KuvP cÖ � ywZ‡Z †KvbwU e¨eüZ nq

? K Av`ª© †mvwWqvg mvj‡dU L †mvwWqvg mvj‡dU M K¨vjwmqvg mvj‡dU N K¨vjwmqvg †K¬vivBW 34. NH4Cl †K Pzb mn‡hv‡M DËß Ki‡j

†Kvb M¨vm Drcbœ nq ? K NH3 L N2 M N2O N NO2 35. †KvbwU Dfagx© A·vBW ? K CO L FeO M CO2 N Al2O3

DËigvjv

1 K 2 L 3 L 4 K 5 M 6 N 7 L 8 K 9 M 10 L 11 N 12 M 13 K 14 L 15 L 16 L 17 M 18 N 19 L 20 L 21 N 22 L 23 M 24 K 25 L 26 L 27 N 28 K 29 K 30 L 31 M 32 L 33 K 34 K 35 N



1. cÖgvY ZvcgvÎv I Pvc ej‡Z eySvq⎯ K 0°C I 1 atm Pvc L 25°C I 1 atm Pvc M 0°C I 1 cm cvi‡ì Pvc N 250°C I 1 cm cvi‡ì Pvc 2. MÖ“c VIA †gŠ‡ji A·vBW †KvbwU? K Cl2O7 L P2O5 M Al2O3 N SO3 3. †Kvb †hŠ‡Mi ev®• NbZ¡ 22? K NO2 L N2O5 M CO2 N SO2

4| wb‡Pi †Kvb avZz GwmW n‡Z nvB‡Wªv‡Rb cÖwZ ’vcb Ki‡Z cv‡i bv?

K Mg L Ag M Zn N Fe 5. A¨vj‡Kvn‡ji Kvh©Kixg�jK †KvbwU? K –COOH L > CO M – OH N – NH2

6. C12H22O11+ H2SO4 = 12C + 11H2O + H2SO4; GLv‡b wbiƒ K †KvbwU?

K C12H22O11 L H2SO4 M 12C N 11H2O 7. Mg2+- Gi B‡jKUªb web¨vm †KvbwU? K 2, 8, 2 L 2, 8, 8 M 2, 8, 4 N 2, 8 8. ch©vq mviYx‡Z k�b MÖ“‡ci †gŠj¸‡jvi †fŠZ

Ae ’v wKiƒc? K KwVb L Zij M M¨vmxq N Zij A_ev

M¨vmxq 9. wb‡Pi †KvbwU †fŠZ cwieZ©b? K †jvnvi Dci gwiPv cov L cvwbi Zwor we‡k−lY M cvwb‡K DËß K‡i ev‡®• cwiYZ

Kiv N †gvgevwZ R¡vjv‡bv 10. KZ mv‡j wiKUvi wecixZ AbycvZ m�Î

Avwe®‹vi K‡ib? K 1774 L 1792 M 1772 N 1782 11. NTP †Z 44g CO2 Gi AvqZb KZ?

K 22.4l L 224l M 2.24l N 22.4 ml 12. wb‡Pi †KvbwUi ’‚j I AvYweK ms‡KZ

GKB? K C2H2 L C6H6 M C2H6 N NH3

13. cigvYy‡Z kw³ �‡ii aviYv †K w ‡q‡Qb? K iv`vi‡dvW© L bxjm †evi M A¨v‡fv‡M‡Wªv N Wvëb 14. cvwbi 1 AYy‡Z KZwU gy³‡Rvo B‡jKUªb

Av‡Q? K 1wU L 2wU M 3wU N bvB 15. †KvbwU g„r¶vi avZz? K Mg L Na M Al N K 16. PCl3 + 3H2O = P (OH)3 + 3HCl

GB wewµqvwU⎯ K cÖkgb L cvwb‡hvRb M cÖwZ¯’vcb N ms‡k−lY 17. mvg ve ’v wbqš�‡Yi wbqvgK bq †KvbwU? K Pvc L ZvcgvÎv M NbgvÎv N cÖfveK 18. GK d¨viv‡W mgvb KZ Kzj¤? K 96500 L 96500 × 2 M 9600 N 960 19. 1 †gvj wg‡_b‡K Aw·‡R‡b m¤•�Y© †cvov‡j

KZ Zvc wbM©Z nq? K 890 kJ L 1560 kJ M 800 kJ N 1550 kJ 20. wj‡gvbvBU AvKwi‡Ki ms‡KZ †KvbwU? K Fe3O4 L Fe2O3 M Fe2O3. 3H2O N Fe3O4.3H2O 21. †Kvb avZz‡K †c‡Uªvj ev †K‡ivwm‡bi wb‡P

ivLv nq? K Na L Ca M Fe N Cu 22. †ccwm A_ev †KvKv‡Kvjv †evZ‡ji gyL

Lyj‡j †Kvb M¨v‡mi ey ey †ei nq? K SO2 L CO2 M NO2 N O2

23. K…wÎg wN ˆZwi‡Z †KvbwU cÖfveK wn‡m‡e eëüZ nq?

K g¨v½vwbR WvB-A·vBW L wM−mvwib M Kve©b ¸uov N wb‡Kj P�Y© 24. PCl5 -G dmdiv‡mi myß †hvRbx KZ?

K 0 L 1 M 2 N 3 25. dmdivm (V) †K¬vivB‡Wi m‡½

A¨vj‡Kvnj Zxeªfv‡e wewµqv Ki‡j wK wK Drcbœ nq?

K C2H5Cl + H3PO3

L CH3COCI + H3PO3 M C2H5Cl + POC13 + HCl N CH3COC1 + POC13 + HCl 26. †Kvb †hŠ‡Mi ’‚j ms‡KZ CH Ges

AvYweK fi 78 n‡j, AvYweK ms‡KZ wK n‡e?

K CH L C6H6 M CH4 N C2H2

27. B‡jKUª‡bi fi KZ? K 1.60 × 10–19g L 1.60 × 1019g M 9.11 × 10–28 gN 9.11 × 1028g 28. wb‡Pi †Kvb AYywUi MVb wcivwgW AvK…wZi? K cvwb L wg‡_b M Kve©b WvB-A·vBW N A¨v‡gvwbqv 29. wPwbi kieZ n‡”Q⎯ K AmgmË¡ wgkÖY L mgmË¡ wgkÖY M †gŠwjK c`v_© N †hŠwMK c`v_© 30. nvB‡Wªv‡RvwqK Gwm‡Wi ms‡KZ †KvbwU? K NH3 L HN4 M NH4 N N3H 31. H+ Avq‡b KZwU B‡jKUªb Av‡Q?

K †Kvb B‡jKUªb †bB L 1wU M 2wU N 3wU 32. Pzbx, bxjv I cvbœv cÖf…wZ g�jëvb cv_‡ii

†¶‡Î †KvbwU mZ¨? K G¸‡jv meB A¨vjywgwbqvg A·vBW L G¸‡jv meB K¨vjwmqvg Kve©‡bU M G¸‡jv Aí cwigvY Ab¨ avZzi

A·vBW wgwkÖZ A¨vjywgwbqvg A·vBW N G¸‡jv Aí cwigvY Ab¨ avZzi

A·vBW wgwkÖZ K¨vjwmqvg Kve©‡bU 33. UªvbwR÷i I gvB‡µvwPcm cÖ �ywZ‡Z †Kvb

†gŠjwU eëüZ nq? K Kve©b L MÖvdvBU M wmwjKb N wRsK 34. Zn + Cu++ ⎯⎯→ Zn ++ + Cu G

wewµqvq weRviK †KvbwU? K Zn L Cu++

M Zn++ N Cu 35. †Kvb GwmWwU wf‡bMvi wn‡m‡e eëüZ nq? K mvBwUªK GwmW L B_vbwqK GwmW M Kve©wbK GwmW N nvB‡Wªv‡K¬vwiK GwmW

DËigvjv 1 K 2 N 3 M 4 L 5 M 6 L 7 N 8 M 9 M 10 L 11 K 12 N 13 L 14 L 15 K 16 L 17 N 18 K 19 K 20 M 21 K 22 L 23 N 24 K 25 M 26 L 27 M 28 N 29 L 30 N 31 K 32 M 33 M 34 K 35 L



1. B‡j±«‡bi cÖZxK †KvbwU ? K e– L e+

M e+– N e–+

2. wb‡Pi †Kvb †gŠjwU wewµqvq Ask †bq bv ?

K He L Na M Pb N Cu 3. Kve©b WvB-A·vBW AYyi AvK…wZ †KvbwU ? K †KŠwYK L PZz¯�jKxq M îwLK N wcivwgW AvK…wZ 4. ch©vq mviwY‡Z bvB‡Uªv‡R‡bi Ae ’vb ⎯G K MÖ“c VII L MÖ“c V M MÖ“c III N MÖ“c I 5. hy‡×i mgq Av¸‡b †evgv ˆZwi‡Z †KvbwU

eëüZ nq ? K P L CO2 M CO N SO2

6. wb‡æi †KvbwU RviK cv`_© bq ? K Aw·‡Rb L I‡Rvb M A¨v‡Kvqv †iwRqv N A¨v‡gvwbqv 7. Pz‡bi cvwb‡K †Nvjv K‡iÑ K Aw·‡Rb L Kve©b WvB-

A·vBW M †K¬vwib N Kve©b g‡bv·vBW 8. jeY cvwbi g‡a¨ we`y r Pvjbv Ki‡j

Drcbœ nq⎯ K cvwb weï× L Kw÷K †mvWv M I‡Rvb N jeY 9. Na2S2O3-Gi ªe‡Y HCl †hvM Ki‡j

Kvi Aat†¶c c‡o ? K Na L H2 M O2 N S 10. GKwU DfgyLx wewµqv memg‡qB ⎯

wewµqv K Am¤•�Y© L AvswkK m¤•�Y© M AvswkK Am¤•�Y©N m¤•�Y© 11. NaCl-Gi Zwor we‡k−l‡Y †KvbwU K¨v‡_vW

wnmv‡e eënvi Kiv myweavRbK ? K Kve©b L gviKvix M Avqib N Kcvi 12. ∆H-Gi gvb †KvbwUi Dci wbf©i K‡i bv ? K wewµqK c`v‡_©i Ae¯’v L ZvcgvÎv M Pvc N Av‡cw¶K Zvc

13. †Wwb‡qj †m‡ji †b‡MwUf cÖvš� †KvbwU ? K Kcvi L Kve©b M g¨v½vwbR N wRsK 14. wb‡æi †KvbwU‡K Kve©b weRvwiZ Ki‡Z

cv‡i bv ? K wRsK Kve©‡bU L Kcvi mvjdvBW M g¨vM‡bwmqvg A·vBW N †KvbwUB bq 15. Kv÷ Avqib ev XvjvB †jvnvq kZKiv

KZ fvM Kve©b _v‡K ? K 4.5 Ñ 6% L 2 Ñ 4.5% M 0.1 Ñ 0.25%N 0.15 Ñ 1.5% 16. †Kvb †hŠMwU A¨vjwKb ? K C4H2 L C2H6 M C3H8 N C3H6 17. cvwb-KvP wK ? K †mvwWqvg wmwj‡KU L †mvwWqvg mvqv‡bU M †mvwWqvg evB-Kve©‡bU N †mvwWqvg mvj‡dU 18. cÖK…wZ‡Z cÖvß fvix †gŠj †KvbwU ? K Avqib L wRsK M BD‡iwbqvg N bvB‡Uªv‡Rb 19. wb‡Pi †KvbwU n¨v‡jv‡Rb ? K †eviY L wemgv_ M Gw›Ugwb N Av‡qvwWb 20. †M jym¨v‡Ki m�ÎwU †Kvb ai‡bi c`v‡_©i

Rb¨ cÖ‡hvR¨ ? K Zij L M¨vm I Zij M KwVb N M¨vmxq 21. gvo †`qv Kvc‡o Av‡qvwWb co‡j wK N‡U ? K Kvc‡o ev`vgx `vM c‡o L Kvc‡o Mvp bxj `vM c‡o M Kvco Kv‡jv nq N m‡½ m‡½B Av¸b a‡i hvq 22. Zwor we‡k−l‡Yi mgq K¨v‡_vW

(cathode) n‡”QÑ K wbi‡c¶ ZworØvi L RviY ZworØvi M weRviY ZworØvi N RviY-weRviY †KvbUvB N‡U bv 23. Re GwmW †KvbwU ? K H2CO3 L HCOOH M H3PO4 N CH3 – OH

24. wb‡æi †Kvb avZzi weRviY ¶gZv me‡P‡q †ewk ?

K Kcvi L †jW M Avqib N wRsK 25. evRv‡i wewµZ ï®‹ †Kv‡li (dry cell)

e. †m f KZ ? K 2.5 †fvë L 1.5 †fvë M 1.0 †fvë N 2.0 †fvë 26. Ômv`v wfwUªqjÕ †KvbwU ? K ZnO L ZnCO3 M FeSO4. 7H2O N ZnSO4. 7H2O 27. wb‡Pi †Kvb A·vBWwU Aèxq bq ? K CO L P4O10 M SO2 N CO2 28. †Kvb †hŠMwU LyeB welv³ ? K CO L CO2 M SO2 N P2O5 29. Ô†ewKs cvBWviÕ †KvbwU ? K Na2CO3 L NH4HCO3 M NaHCO3 N CaCO3 30. cvi‡K¬vwiK Gwm‡Wi ms‡KZ †KvbwU ? K HClO3 L HClO4 M HOCl N H2ClO2 31. wb‡æi †KvbwU †hŠwMK c`v_© ? K wRi‡Kvwbqvg L kieZ M evjy I wPwbi wgkÖY N mvaviY

jeY 32. †Kvb e¯‘wU jvj ? K Av‡qvwWb L †eªvwgb M †K¬vwib N ‡d¬vwib 33. †Kvb †gŠwjK M¨v‡mi ev®• NbZ¡ X n‡j,

Gi AvYweK fi n‡eÑ K ½ X L X2 M 2X N †KvbwUB bq 34. Na2CO3-Gi GKwU AYy‡Z KZwU †gŠj

Av‡Q? K 3wU L 6wU M A¨v‡fv‡M‡Wªvi msL¨v N 5wU 35. mvevb Zwii mgq DcRvZ wnmv‡e wK cvIqv hvq

? K B_vbj L wg_vbj M wf‡bMvi N wM−mvwib

DËigvjv 1 K 2 K 3 M 4 L 5 K 6 N 7 L 8 L 9 N 10 K 11 L 12 N 13 N 14 M 15 L 16 N 17 K 18 M 19 N 20 N 21 L 22 M 23 L 24 N 25 K 26 N 27 K 28 K 29 M 30 L 31 N 32 L 33 M 34 K 35 N



1. g„r¶vi avZzmg �‡ni †¶‡Î mwµqZvi µg †Kvb&wU?

K Ca>Mg>Be>Sr>Ba L Ba>Sr>Ca>Mg>Be M Ba>Mg>Ca>Sr>Be N Be>Mg>Ca>Sr>Ba 2. †Kv‡mj Zwor‡hvRx eÜbx m¤•‡K© cÖ_g

aviYv †`b KZ mv‡j? K 1889 mv‡j L 1913 mv‡j M 1926 mv‡j N 1916 mv‡j 3. wb‡æi †Kvb& †hŠMg�jKwU abvÍK †hvR¨Zv

cÖ k©b K‡i? K CrO4 L SiO3 M NH4 N PO4

4. ivmvqwbK wewµqv msNU‡bi Rb¨ Aek¨B cÖ‡qvRb n‡”Q-

K Zvc L `ªeY M Av‡jvK N ms¯•k© 5. ¯•k© c×wZ‡Z mvjwdDwiK GwmW

cÖ ‘wZ‡Z †Kvb&wU cÖfveK wn‡m‡e eëüZ nq?

K f¨vbvwWqvg †c›Uv·vBW L wb‡Kj P‚Y© M †jvnvi ¸uov N g¨v½vwbR WvB-A·vBW 6. Aw·‡Rb AYy‡Z `yBwU Aw·‡Rb cigvYyi

g‡a¨ eÜb kw³ KZ? K 435 kJ/mole L 498 kJ/mole M 431 kJ/mole N 484 kJ/mole 7. me‡P‡q Kg B‡jK‡Uªvc‡RwUf avZz †Kvb&wU? K Cu L Fe M Ag N Pb 8. Kv÷ Avqi‡b wmwjK‡bi cwigvY KZ? K 1–1⋅5% L 4–4⋅5% M 2–2⋅5% N 3–3⋅5% 9. D”P ZvcgvÎvi _v‡g©vwgUv‡i eëüZ nq

wb‡æi †Kvb&wU? K †mvwWqvg I K¨vjwmqv‡gi Zij

msKi L †mvwWqvg I cUvwkqv‡gi Zij msKi M †mvwWqv‡gi I g¨M‡bwmqv‡gi Zij

msKi N K¨vjwmqvg I g vM‡bwmqv‡gi Zij

msKi 10. cUvwkqvg avZz wkLv cix¶vq †Kvb& eY© †`q? K †e¸bx eY© L bxjvf meyR eY© M †mvbvjx njy eY©

N B‡Ui gZ jvj eY© 11. †jvnvi wRwb‡m gwiPv †iv‡ai Rb

M vjfvbvBwRs-G †Kvb& avZzi cÖ‡jc † Iqv nq?

K Cu L Ni M Al N Zn 12. g¨vM‡bwmqv‡gi Mjbv¼ KZ? K 450°C L 550°C M 650°C N 600°C 13. †mvwWqvg wRs‡K‡Ui mwZ¨Kvi ms‡KZ

†Kvb&wU? K Na2ZnO2 L Na2Zn(OH)4 M NaZnO2 N Na3Zn(OH)2

14. nv ev cyiv‡bv K‚qvq †Kvb&wU mwÂZ _v‡K?

K CO L N2O M CO2 N NO 15. ùv‡Zi gvRb ˆZwi Ki‡Z †Kvb&wU eëüZ

nq? K CaCO3 L MgCO3 M CaSiO3 N Ca3(PO4)2

16. ˆRe †hŠM Drcv`‡b cÖvYkw³i †Kvb cÖfve †bB GK_v †K cÖgvY K‡ib?

K ev‡R©wjqvm L wd«WwiL †fvjvi M j¨vfqwm‡q N cÖvDm 17. wWg cuPv MÜhy³ M¨vm †Kvb&wU? K SO2 L CS2 M H2S2O7 N H2S 18. wUªwUqv‡gi fi msL¨v KZ? K `yB L wZb M Pvi N GK 19. †Kvb&wU mg‡hvRx †hŠM? K PCl3 L AlCl3 M MgCl2 N NaCl 20. A¨vjKvB‡bi Kvh©Kix g�jK †Kvb&wU? K > C = C < L – C ≡ C – M >C–O–C< N > C = O 21. †jeyi i‡m †Kvb&wU cvIqv hvq? K d¨vwU GwmW L diwgK GwmW M A·vwjK GwmWN A¨vmKiweK

GwmW 22. wM−mvwib wK? K A¨vj‡Kvnj L d¨vwU GwmW M G÷vi N A¨vj‡KvBj 23. †mvwWqvg _v‡qvmvj‡d‡Ui evwYwR¨K bvg wK? K wdUwKwi L MÜK M nvB‡cv N Kc©yi

24. Aw·‡Rb cÖ ‘wZ‡Z cUvwkqvg †K¬v‡iU I g¨v½vwbR WvB-A·vB‡Wi AbycvZ KZ?

K 3: 1 L 2 : 5 M 2 : 1 N 4 :1 25. Pz‡bi cvwb‡Z AwaK cwigvY Kve©b WvB-

A·vBW Pvjbv Ki‡j †Kvb&wU Drcbœ nq? K CaCO3 L Ca(HCO3)2 M Na2CO3 N H2CO3

26. nvB‡Wªv‡Rb mvjdvB‡W mvjdv‡ii myß †hvRbx KZ?

K 2 L 3 M 4 N 6 27. 1 g MÖvdvB‡U KZwU Kve©b cigvYy we`¨gvb? K 5⋅02×1022 wU L 3⋅346×1022 wU M 5⋅24×1022 wU N 6⋅02×1023 wU

28. wecixZ AbycvZ m�Î cÖKvk K‡ib †K? K Wvëb L †MjymvK M cÖvDm N wiKUvi 29. ÒGKB ZvcgvÎv Ges GKB Pv‡c

mgAvqZb wewkó mKj M¨v‡m mgvb msL¨K cigvYy _v‡KÓÑG K_vi cÖe³v †K?

K A¨v‡fv‡M‡Wªv L †MjymvK M ev‡R©wjqvm N Rb Wvëb 30. cvigvYweK msL¨v‡K cÖKv‡ki Rb¨ †Kvb&

cÖZxKwU eëüZ nq? K A L Z M X N M 31. GK j¶ nvB‡Wªv‡Rb cigvYyi g‡a¨

wWD‡Uwiqv‡gi msL¨v KZ? K 15 L 25 M 99985 N 99795 32. ch©vq mviYx‡Z Av‡m©wb‡Ki Ae ’vb †Kvb&

MÖ“‡c? K MÖ“c IV-‡Z L MÖ“c III-‡Z M MÖ“c VI-‡Z N MÖ“c V-‡Z 33. 1 d¨viv‡W KZ Kzj¤? K 9⋅65×104 C L 96000 C M 6⋅02×1023 C N 9⋅65×105 C 34. Zvc ivmvqwbK mgxKi‡Y cÖgvY ZvcgvÎv

KZ? K 10° C L 273 K M 298 K N 288 K 35. wb‡æi †Kvb& c`v‡_©i Avš�tAvYweK kw³

Kg? K FeO L H2O

M NaCl N N2 DËigvjv

1 L 2 N 3 M 4 N 5 K 6 L 7 M 8 K 9 L 10 K 11 N 12 M 13 L 14 M 15 K 16 K 17 N 18 L 19 K 20 L 21 N 22 K 23 M 24 N 25 L 26 M 27 K 28 N 29 M 30 L 31 K 32 N 33 K 34 M 35 N



1. wmMv‡iU, PK‡jU I A‡bK Lv`¨ `ª‡eï †gvoK ˆZwi‡Z †KvbwU eënvi Kiv nq ?

K Ca L Ag M Al N Cu 2. wb‡Pi †KvbwU M −y‡KvwbK Gwm‡Wi ms‡KZ

? K H2S2O7 L H2[PbCl4] M C6H12O7 N C6H5(OH)4 3. GKgvÎ AavZz hv we`y r cwievnx, GwU

†KvbwU ? K Kcvi L mvjdvi M WvqgÛ N MÖvdvBU 4. †KvbwU Lvevi †mvWv bv‡g cwiwPZ ? K NaHCO3 L Na2CO3 M CaCO3 N Na2SO4 5. †KvbwU‡K cvwbi bx‡P ivLv nq ? K †jvwnZ dmdivm L †mvwWqvg M Av‡qvwWb N †k¦Z dmdivm 6. A¨v‡iv‡gwUK †hŠM †KvbwU ? K weD‡Ub L A¨vj‡Kvnj M b¨vc‡_wjb N d¨vwU GwmW 7. eb¯•wZ wN ev WvjWvi g‡a¨ †Kvb ai‡bi

eÜb we`¨gvb ? K GKK eÜb L wØ-eÜb M wÎ-eÜb N AvqwbK eÜb 8. †KvbwU cvwgwUK GwmW ? K C17H35COOH L C15H31COOH M C17H35COONa N C17H33COOH 9. gvo (÷vP©) †Ìqv Kvc‡o Av‡qvwW‡bi

`ªeY co‡j †Kvb e‡Y©i m„wó nq ? K jvj L meyR M Mvp bxj N ev`vgx 10. †Kvb †Kvb †¶‡Î KwVb c`v_©‡K DËß

Ki‡j mivmwi ev‡®• cwiYZ nIqv‡K wK ejv nq ?

K cvZb L EaŸ©-cvZb M Mjb N Nbxfeb 11. †KvbwU wgkÖ c`v_© ? K cvwb L jeY M evqy N Kve©b WvB-

A·vBW 12. cÖK…wZ‡Z cÖvß me‡P‡q fvix †gŠj †KvbwU ?

K †iwWqvg L f¨vwbwWqvg M BD‡iwbqvg N wnwjqvg 13. GK †gvj cigvYy Aw·‡Rb mgvb KZ MÖvg

? K 16g L 8g M 32g N 64g 14. H2SO4 Gi GKwU AYyi fi KZ ? K 98g L 98 M 6.02 × 1023gN 1.63 × 10−22g 15. †Kvb M¨vmwUi AYy wØ-cigvYyK ? K bvB‡Uªv‡Rb L wnwjqvg M Kve©b WvBA·vBW N I‡Rvb 16. cvi‡K¬vwiK Gwm‡Wi AvYweK ms‡KZ †KvbwU

? K H2Cl2 L HClO4 M HClO3 N H2ClO4 17. A vjywgwbqvg A·vB‡W Aw·‡R‡bi †hvRbx

KZ ? K GK L `yB M wZb N Pvi 18. cigvYyi FYvÍK KwYKv †KvbwU ? K †cÖvUb L wbDUªb M B‡jKUªb N wbDwK¬qvm 19. K¨vjwmqvg cigvYyi mwVK B‡jKUªb

web¨vm †KvbwU ? K 2,8,12 L 2,8,6,4 M 2,6,10 N 2,8,8,2 20. †KvbwU AvqwbK †hŠM ? K CO2 L H2O M NO2 N CaO 21. cvwbi AYy MV‡b Aw·‡R‡bi KqwU gy³

†Rvo B‡jKUªb Av‡Q ? K GKwU L `yBwU M wZbwU N PviwU 22. †g‡Ûwjd me©cÖ_g KZ mv‡j ch©vq mviYx

cÖKvk K‡ib ? K 1869 L 1913 M 1832 N 1792 23. †KvbwU Dfag©x A·vBW ? K Na2O L CO2 M Al2O3 N CO 24. †Kvb wewµqvwU ms‡hvRb wKš‘ ms‡k−lY bq

? K H2 + Cl2 = 2HCl L C + O2 = CO2 M N2 + 3H2 = 2NH3 N CaO + CO2 = CaCO3

25. weRviK c`v_© †KvbwU ? K nvB‡Wªv‡Rb L Av‡qvwWb M †K¬vwib N cUvwkqvg WvB‡µv‡gU 26. AmIqvì c×wZ‡Z bvBwUªK GwmW

cÖ ‘wZi Rb¨ cÖfveK wn‡m‡e †KvbwU eëüZ nq ?

K wb‡Kj P‚Y© L c −vwUbvg M †jŠn P‚Y© N Kcvi P‚Y© 27. †KvbwU Zwor Awe‡k−l¨ ? K Lv`¨ jeY L M −y‡KvR M GwmW wgwkÖZ cvwb N A¨vjywgwbqvg A·vBW 28. Nwoi †PB‡bi Dc‡i †µvwgqv‡gi cÖ‡jc

cÖK…Z c‡¶ †PBbwU †Kvb avZzi ˆZwi ? K †jvnv L wb‡Kj M Zvgv N wmjfvi 29. †Kvb ai‡bi wewµqv n‡Z we y r Drcv`b

Kiv hvq ? K ms‡k−lY L cvwb †hvRb M RviY-weRviY N mgvYyKiY 30. wg‡_‡bi `nb Zvc KZ ? K 57.3 kJ/mole L 572 kJ/mole M −242 kJ/mole N 890 kJ/mole 31. †jŠn avZzi wb®‹vkb GKwU⎯ K cÖfveb cÖwµqv L RviY cÖwµqv M Zwor we‡k−lY cÖwµqv N weRviY cÖwµqv 32. Na3AlF6 Gi Mjbv¼ KZ ? K 2050°C L 1000°C M 900 − 950°CN 801°C 33| †j‡Wi AvKwi‡Ki bvg wK ? K M¨v‡jbv L mvwRgvwU M K¨vjvgvBb N e·vBU 34. wb‡æi †KvbwU †c‡Uªv‡ji Gw›UbK ? K Pb (C2H5)4 L C2H5Cl M Na ⎯ Pb N PbO 35. 40°C ZvcgvÎvq DËß KwjPz‡b †K¬vwib

M¨vm Pvjbv Ki‡j †KvbwU Drcbœ nq ? K †K¬v‡ivdig L we −wPs cvDWvi M Lvevi jeY N WªvB-AvBP

DËigvjv 1 M 2 M 3 N 4 L 5 N 6 M 7 K 8 N 9 M 10 L 11 M 12 M 13 K 14 L 15 K 16 L 17 L 18 M 19 N 20 N 21 L 22 K 23 M 24 N 25 K 26 L 27 L 28 K 29 M 30 N 31 N 32 L 33 K 34 K 35 L


1| ch©vq mviYx‡Z KqwU ch©vq Av‡Q ? K. 8wU L. 7wU M. 9wU N. 6wU


2| GKwU cigvYyi e¨vm KZ ? K. 10−8 cm L. 10−15 cm M. 10−23 cm N. 10−6 cm 3| NaCl-Gi Zwor we‡k−l‡Y †KvbwU K¨v‡_vW wn‡m‡e

eënvi Kiv myweavRbK ? K. Hg L. C M. Al N. Cu 4| N2(g) + 3H2(g) = 2NH3(g), wewµqvq Drcbœ

Zvc KZ ? K. 192.5 kJ L. 92 kJ M. 102.02 kJ N. 82.2 kJ 5| †KvbwUi AYy GK cigvYyK ? K. bvB‡Uªv‡Rb L. mvjdvi M. †K¬vwib N. wbqb 6| me©cÖ_g cigvYy I AYyi g‡a¨ cv_©K¨ wb‡ ©k K‡ib

†K ? K. wbDUb L. j¨vfqwmqvi M. ev‡R©wjqvm N. A¨v‡fv‡M‡Wªv 7| A¨vj‡Kvn‡ji Kvh©Kix g�jK †KvbwU ? K. − COOH L. − CHO M. > C = O N. − OH 8| wb‡æi †KvbwU eY©nxb ? K. NO L. N2O4 M. NO2 N. NH4Cl 9| wb‡æi †KvbwU AvK…wZ PZz �jKxq ? K. NH3 L. H2O M. CH4 N. CO2 10| O2− (A·vBW Avqb)-Gi B‡jKUªb msL¨v KZ ? K. 7 L. 8 M. 10 N. 9 11| †Kvb wewµqvwU mwVK ? K. Al + HCl = AlHCl L. 2Al + 6HCl = 2AlCl3 + 3H2 M. Al + 3HCl = AlCl3 + H2

N. 2Al + 2HCl = AlCl3 + H2 12| Avqib (III) je‡Yi ªe‡Y †mvwWqvg nvB‡Wªv·vBW

ªeY †hvM Ki‡j †Kvb e‡Y©i Aat‡¶c c‡o ? K. jvj‡P ev`vgx L. meyR M. mv`v N. njy 13| †Kvb avZz‡K Kve©b weRviY cÖwµqvi wb®‹vkb Kiv

nq ?

K. A¨vjywgwbqvg L. g¨vM‡bwmqvg M. †mvwWqvg N. wRsK 14| GK †gvj cvwb = K. 18g L. 16g M. 2.99 × 10−23g N. 1.66 × 1028g 15| cwieZ©bkxj †hvR¨Zv cÖ`k©b K‡i bv †KvbwU ? K. Kcvi L. Avqib M. wRsK N. mvjdvi 16| †Kvb †hŠ‡Mi ’‚j ms‡KZ CH I AvYweK fi 78

n‡j AvYweK ms‡KZ n‡e⎯ K. CH L. CH4 M. C2H2 N. C6H6 17| M¨vm AvqZb m�Î Avwe®‹vi K‡ib⎯ K. g¨v·I‡qj L. Rb Wvëb M. iv`vi‡dvW© N. †Mjym¨vK 18| †KvbwU‡K e−y-wfwUªqj e‡j ? K. ZnSO4.7H2O L. CuSO4.5H2O M. FeSO4.7H2O N. CaSO4.2H2O 19| †Kvb avZzi jeY wkLv cix¶vq meyRvf bxj iO cÖ k©b

K‡i ? K. Kcvi L. †mvwWqvg M. cUvwkqvg N. K¨vjwmqvg 20| g¨vM‡bwmqvg bvBUªvBW-Gi ms‡KZ⎯ K. MgN L. Mg3N2 M. Mg2N3 N. MgN2 21| wPwbi kieZ n‡”Q⎯ K. AmgmË¡ wgkÖY L. mgmË¡ wgkÖY M. †gŠwjK c`v_© N. †hŠwMK c`v_© 22| wPwji gi“f‚wg‡Z mëwcUvi bv‡g cvIqv hvq⎯ K. Na2CO3 L. NaCl M. NaNO3 N. Na2SO4 23| mvaviYZ cÖwZ 10°C ZvcgvÎv e„w×i Rb¨ wewµqvi

MwZ KZ¸Y e„w× cvq ? K. 2 ¸Y L. 3 ¸Y M. 10 ¸Y N. e„w× cvqbv 24| 1 cal = K. 4.18 Joule L. 4.68 Joule M. 4.78 Joule N. 4.38 Joule

25| wf‡bMv‡i eëüZ nq †KvbwU ? K. B_vBj A¨vj‡Kvnj L. A¨vwmwUK GwmW M. diwgK GwmW N. Kve©wbK GwmW 26| †Kvb GwmWwU wbiƒ`K ? K. HCl L. HNO3 M. H2SO4 N. H3PO4 27| 1 Faraday = K. 9600 Coulomb L. 9650 Coulomb M. 965000 Coulomb N. 96500 Coulomb 28| †Kvb Avqb ejq cix¶v †`q ? K. †K¬vivBW L. Kve©‡bU M. mvj‡cU N. bvB‡UªU 29| CH3 − CH = CH − CH3 †hŠMwUi bvg wK ? K. 1− weDwUb L. weDwUb M. 2− weDwUb N. 3− weDwUb 30| bvB‡Uªv‡Rb AYyi MvVwbK ms‡KZ †KvbwU ? K. N − N = N L. N ≡ N M. N = N N. N = N = N 31| Zvc ivmvqwbK mgxKi‡Y cÖgvY ZvcgvÎv n‡”Q⎯ K. 25°C L. 0°C M. 273°C N. 100°C 32| UªvbwR÷vi I gvB‡µv mvwK©U cÖ ‘ wZ‡Z wb‡Pi †KvbwU

eëüZ nq ? K. Kve©b L. MÖvdvBU M. wmwjKb N. `¯ �v 33| Zn + Cu++ → Zn++ + Cu, wewµqvwU‡Z weRviK

†KvbwU ? K. Cu++ L. Zn++ M. Cu N. Zn 34| NTP †Z 44g Kve©b WvBA·vB‡Wi AvqZb⎯ K. 224 litre L. 2240 litre M. 22.4 litre N. 22400 litre 35| †mvwWqv‡gi j¨vwUb bvg †KvbwU ? K. Aurum L. Ferrum M. Cuprum N. Natrium

DËigvjv 1 L 2 K 3 K 4 L 5 N 6 N 7 N 8 L 9 M 10 M 11 L 12 K 13 N 14 K 15 M 16 N 17 N 18 L

19 K 20 L 21 L 22 M 23 K 24 K 25 L 26 M 27 N 288 N 29 M 30 L 31 K 322 M 33 N 34 M 35 N



1| GKwU Zxeª GwmW‡K GKwU Zxeª ¶vi Øviv cÖkg‡b

AvbygvwbK cÖkgb Zvc⎯ K. 67.3 kJ L. 58.3 kJ M. 57.7 kJ N. 57.3 kJ 2| wb‡æi †Kvb †gŠjwU B‡jK‡UªvcwRwUf? K. O L. H M. Cl N. Br 3| †Kvb avZzwU Kve©b ¡ viv weRviY m¤¢e bq ? K. Pb L. Fe M. Na N. Cu 4| bx‡Pi †KvbwU‡Z Na2CO3 we`¨gvb? K. mëwcUvi L. mvwR gvwU M. mgy‡ ªi cvwb N. †mvnvMv 5| µvBIjvB‡Ui ms‡KZ †KvbwU ? K. Na3 AlF6 L. Na3 Al3O3 M. Na2 AlF6 N. Na AlF6 6| cUvwmqvg mycvi A·vB‡Wi ms‡KZ †KvbwU ? K. KO L. K2O M. KO2 N. KO3

7| cUvwmqv‡gi ùzUbv¼ KZ ? K. 656° †mt L. 756° †mt M. 750° †mt N. 856° †mt 8| †mvwWqvg Gjywg‡b‡Ui cÖK…Z ms‡KZ wK ? K. NaAl(OH)4 L. NaAlO2

M. NaAlO3 N. Na2AlO2

9| wRs‡Ki Av‡cw¶K ¸i“Z¡ KZ ? K. 4.1 L. 5.1 M. 6.1 N. 7.1 10| †Kvb ag©wU PbO -Gi bq ? K. jvj eY© L. Dfag© M. Gwm‡W ªeYxq N. ¶v‡i ªeYxq 11| †Kvb M¨vm AwMœwbe© vcK wn‡m‡e e¨eüZ nq ? K. CO L. CO2 M. H2 N. O2

12| cvwb Kuv‡Pi ms‡KZ †KvbwU ? K. Na2CO3 L. K2CO3 M. Na2SiO3 N. NaNO3 13| †KvbwU †cÖvcvb‡ji ms‡KZ ? K. CH3OH L. C2H5OH M. C4H9OH N. C3H7OH

14| Pz‡bi cvwb‡Z AwaK¶Y CO2 Pvjbv Ki‡j wK ˆZwi nq ?

K. CaCO3 L. Ca(HCO3)2 M. H2CO3 N. NaHCO3 15| wbkv`‡ji mv‡_ KzBK jvBg DËß K‡i wK M¨vm

cÖ ‘Z Kiv nq ? K. NH3 L. NO2

M. CO2 N. NO 16| †eviY GKwU⎯ K. avZz L. AavZz M. DcavZz N. wgkÖY 17| cvigvYweK fi aviYvi cÖeZ©K †K ? K. Rb Wvëb L. †M-jym¨vK M. wbDUb N. ev‡Rwjqvm 18| †KvbwU M¨vm AvqZb m�Î Avwe®‹v‡ii mvj? K. 1803 L. 1708 M. 1908 N. 1808 19| cÖgvY ZvcgvÎv I Pv‡c Aw·‡R‡bi NbZ¡ wjUvi cÖwZ

KZ MÖvg? K. 2.016 L. 1.43 M. 17 N. 88 20| mvjdv‡ii mwVK ms‡KZ †KvbwU ? K. S2 L. S4 M. S6 N. S8 21| †KvbwU M−y‡Kv‡Ri ’‚j ms‡KZ ? K. CH2O L. C6H12O6 M. CHO N. C2H4O2 22| PCl3 -G P -Gi myß †hvRbx KZ ? K. 2 L. 3 M. 4 N. 5 23| WvB‡µv‡g‡Ui ms‡KZ †KvbwU ? K. CrO4 L. Cr2O4 M. Cr2O7 N. Cr2O2 24| wg‡_‡bi ùzUbv¼ KZ ? K. −183° †mt L. −162° †mt M. 100° †mt N. 162° †mt 25| †mvbvi cvigvYweK msL¨v KZ ? K. 89 L. 69 M. 59 N. 79 26| ch©vq mviYx‡Z wRsK-Gi Ae ’vb⎯ K. IIA MÖ“‡c L. IIB MÖ“‡c M. IIIA MÖ“‡c N. IIIB MÖ“‡c

27| NaOH+HCl=NaCl+H2O wewµqvwU wKiƒc? K. cÖkgb L. mgvYyKiY M. cÖwZ ’vcb N. cvwb‡hvRb 28| K…wÎg wN ˆZwi‡Z †KvbwU cÖfveK wn‡m‡e e¨eüZ nq

? K. c−vwUbvg P‚Y© L. †jvnvi ¸ov M. wb‡Kj P‚Y© N. f¨vbwWqvg †c‡›Uv·vBW 29| †nevi †evm c×wZ‡Z G¨v‡gvwbqv Drcv`‡b KZ

GU‡gvmwdqvi Pvc cÖ‡qvM Kiv nq ?

K. 50⎯100 L. 80⎯350 M. 1000 N. 500 [DËi : eB‡q Av‡Q 200⎯250]

30| wewµq‡Ki NbgvÎv evov‡j wewµqv⎯ K. mvg‡bi w`‡K hv‡e L. wcQ‡bi w`‡K hv‡e M. mvg¨ve ’vq _vK‡e N. †KvbwUB n‡e bv 31| wewµqvi nvi †KvbwUi Dci wbf©i K‡i bv ? K. cÖfveK L. ZvcgvÎv M. wewµq‡Ki NbgvÎv N. wewµq‡Ki cvÎ 32| †KvbwU Zwor-we‡k−l¨ bq ? K. Kcvi mvj‡dU L. Lv`¨ jeY M. GwmW wgwkÖZ cvwb N. M−y‡KvR 33| †KvbwU B‡jK‡Uªv‡c−wUs -Gi D‡Ïk¨ bq ? K. gwiPv †iva Kiv L. wewµqv †iva Kiv M. ¶q †iva Kiv N. D¾¡jZv e„w× Kiv 34| GK †gvj H−H eÜb fvO‡Z KZ wK‡jv Ryj kw³

†kvwlZ nq ? K. 326 L. 244 M. 435 N. 431

35| me©cÖ_g AYyi aviYv cÖeZ©b K‡ib⎯ K. †fvëv L. †Wwb‡qj M. Wvëb N. A¨v‡fv‡M‡Wªv

DËigvjv 1 N 2 L 3 M 4 L 5 K 6 M 7 N 8 K 9 K 10 K 11 L 12 M 13 N 14 L 15 K 16 M 17 K 18 N

19 N 20 N 21 K 22 K 23 M 24 L 25 N 26 L 27 K 28 M 29 L 30 K 31 N 32 N 33 L 34 M 35 N 55. wm‡jU †evW©-2001 imvqb : ˆbe© w³K cÖkœ


1| ch©vq mviYxi mwZ¨Kvi wfwË wK ? K. cvigvYweK IRb L. cvigvYweK msL¨v M. B‡jKUªb web¨vm N. Zzj¨ IRb 2| †KvbwU FYvÍK cÖfveK ? K. MnO2 L. KMnO4

M. Na2SO4 N. H3PO4

3| H2 + Cl2 = 2HCl G wewµqvwU bqÑ K. RviY-weRviY L. ms‡hvRb M. ms‡k−lY N. cÖkgb 4| †KvbwU Zxeª Zwor we‡k−l¨ c`v_©? K. †mvwWqvg †K¬vivBW L. wPwb M. M−y‡KvR N. A¨vwmwUK GwmW 5| †Kvb avZzwU me‡P‡q †ewk B‡jK‡UªvcwRwUf? K. †mvbv L. Zvgv M. `¯ �v N. wjw_qvg 6| †Kvb avZzwU ¶v‡ii mwnZ wewµqv K‡i bv ? K. `¯ �v L. A¨vjywgwbqvg M. †jW N. †jvnv 7| †KvbwU kw³kvjx GwmW? K. HCl L. HNO3 M. H3PO4 N. H2CO3 8| †KvbwU wbi‡c¶ A·vBW? K. SO2 L. CO M. N2O3 N. P2O5

9| wb‡æi †Kvb avZz‡K Zwor we‡k−lY cÖwµqvq wb®‹vkb Kiv nq ?

K. Zn L. Cu M. Fe N. Al 10| †Kvb GwWmwU wbi“`K ? K. HNO3 L. H3PO4 M. H2SO4 N. HCl 11| A¨vj‡Kbmg�‡ni mvaviY AvYweK ms‡KZ †KvbwU ? K. CnH2n L. CnH2n +1

M. CnH2n +2 N. CnHn

12| †Kvb †hŠMwU A¨vjwKb (Alkene) ? K. C3 H8 L. C3 H6

M. C2 H6 N. C2 H2

13| e−y wfwUªqj Gi ivmvqwbK ms‡KZ †KvbwU ?

K. CuSO4. 5H2O L. FeSO4. 7H2O M. MgSO4. 7H2O N. Na2CO3. 10H2O 14| wb‡æi †KvbwU Pz‡bi cvwb? K. KOH L. NaOH M. Ca(OH)2 N. CaO 15| wb‡æi †KvbwU weD‡U‡bi (Butane) ms†KZ ? K. C4H10 L. C4H6 M. C4H7 N. C4H8

16| A¨vj‡Kvnj Gi Kvh©Kix g�jK †KvbwU ? K. −COOH L. − OH M. − CHO N. >CO 17| wb‡æi †Kvb †gŠjwU cwieZ©bkxj †hvRbx cÖ k©b

K‡i? K. S L. Ca M. Cl N. Na 18| Wvwb‡qj †m‡j abvÍK cÖvš� †KvbwU ? K. wRsK `Ê L. Kcvi `Ê M. Kve©b `Ê N. Kcvi mvj‡dU ªeY 19| †Kvb M¨vm ¶vixq? K. NH3 L. CO2 M. CO N. NO2

20| B¯•v‡Z Kve©‡bi cwigvY kZKiv KZ ? K. 0.15-1.5% L. 0.10-0.25% M. 2Ñ4.5% N. 0.45Ñ0.10% 21| †Kvb evK¨wU mwVK ? K. cUvwmqv‡gi cÖZxK P L. K¨vjwmqv‡gi cÖZxK K M. †mvwWqv‡gi cÖZxK SO N. cvi‡`i cÖZxK Hg 22| me©cÖ_g AYyi aviYv cÖeZ©b K‡ib †K ? K. Wvëb L. †M jym¨vK M. ev‡R©wjqvm N. A¨v‡fv‡M‡Wªv 23| wb‡æi †KvbwU †hŠwMK c`v_©? K. Zvgv L. †mvbv M. evjy I je‡Yi wgkÖY N. mvaviY jeY 24| K¨vjwmqvg dm‡d‡Ui ms‡KZ n‡”QÑ K. CaPO4 L. Ca2(PO4)3 M. Ca3(PO4)2 N. Ca(PO4)2 25| †KvbwU g¨vM‡bwmqv‡gi B‡jKUªb web¨vm?

K. 2, 8 L. 2, 8, 1 M. 2, 8, 2 N. 2, 8, 8 26| †mvwWqv‡gi me©ewnt ’ †Lvj‡K KqwU B‡jKUªb _v‡K

? K. 1wU L. 2wU M. 3wU N. 5wU 27| †KvbwU A-†cvjvi (Non-ploar) †hŠM? K. Gj‡Kvnj L. wPwb M. M−y‡KvR N. †ebwRb 28| Kve©b-WvB-A·vBW AYyi AvK…wZ †KvbwU ? K. †KŠwYK L. ˆiwLK M. PZz �jKxq N. wcivwgW AvK…wZ 29| cvwbi 1 †gvj n‡”QÑ K. 18 MÖvg L. 36 MÖvg M. 36.5 MÖvg N. 98 MÖvg 30| WªvB-†m‡ji Zwor PvjK ej †KvbwU ? K. 1.1 †fvë L. 1.5 †fvë M. 1.05 †fvë N. 2.20 †fvë 31| cÖgvY ZvcgvÎv †KvbwU ?

K. 20°C L. 25°C

M. 30°C N. 32°C 32| KZwU †gŠj‡K Aš�tAe ’vš�i †gŠj ejv nq ? K. 15wU L. 14wU M. 30wU N. 32wU 33| ch©vq mviYx D™¢ve‡b Kvi Ae`vb me‡P‡q †ewk ? K. †g‡Êj L. †g‡Êjxd M. A¨v‡fv‡M‡Wªv N. wbDUb 34| †nevi c×wZ‡Z AZ¨vbyK‚j ZvcgvÎv †KvbwU ?

K. 200Ñ300° †mt

L. 300Ñ400° †mt M. 400Ñ500° †mt

N. 500Ñ600° †mt 35| ch©vq mviYx‡Z KqwU MÖ“c Av‡Q? K. 5wU L. 7wU M. 8wU N. 9wU

DËigvjv 1 M 2 N 3 N 4 K 5 K 6 N 7 K 8 L 9 N 10 M 11 M 12 L 13 K 14 M 15 K 16 L 17 K 18 L

19 K 20 K 21 N 22 N 23 N 24 M 25 M 26 K 27 N 288 L 29 K 30 L 31 L 322 M 33 L 34 M 35 N


56. ewikvj †evW©-2009 imvqb : ˆbe© w³K cÖkœ mgq-35 wgwbU; c �Y©gvb -35


1. †Kvb&wU Kve©‡bi iƒc‡f` b‡n ? K nxiK L f �mv Kqjv M MÖvdvBU N Kve©b g‡bv·vBW 2. wb‡Pi †Kvb&wU Zwor Awe‡k−l¨ ? K wPwb L mvaviY jeY M Kcvi mvj‡dU N mvjwdDwiK GwmW 3. KZ Kzj¤ PvR©‡K GK d¨viv‡W ejv nq ? K 96500 L 95600 M 69500 N 95000 4. B¯•vZ n‡”Q ⎯ K weï× Avqib L ¯í cwigvY Kve©bhy³ Avqib M GKwU †gŠj N †jvnvi AvKwiK 5. evZ¨vPzj−xi Dcivs‡k ZvcgvÎv KZ ? K 1500°C L 800°-700°C M 300°-400°C N 50°-10°C 6. †Kvb&wU kw³i GKK bq ? K Calorie L Joule M KJ N Cm/Sec 7. meyR wfwUªq‡ji ms‡KZ †Kvb&wU ? K FeSO4.7H2O L Fe2(SO4)3.7H2O M FeSO4.5H2O N Fe2(SO)33H2O 8. cUvwkqvg Av‡qvWvBW †hv‡M †Kvb& avZzi `ªeY

n‡Z njy` Aat‡¶c c‡o ? K †jW L Kcvi M K¨vjwmqvg N g¨vM‡bwmqvg 9. wewµqvi MwZi Dci cÖfve †bB ⎯ K ZvcgvÎv L wewµq‡Ki NbgvÎv M cÖfveK N wewµqvi cv‡Îi AvKvi 10. †mvwWqvg nvBWªv·vBW `ªeY †hvM Ki‡j †Kvb

K¨vUvq‡bi jeY n‡Z jvj‡P ev`vgx Aat‡¶c c‡o ?

K Avqib (ii) L Avqib (iii) M wRsK N Kcvi 11. B_vbj I mvjwdDwiK Gwm‡Wi wewµqvi †Kvb&

†hŠMwU MwVZ nq bv ? K C2H4 L C2H5-O-C2H5 M C2H5SO4H N CH3COOH 12. B_vBj Av‡qvWvB‡Wi mv‡_ †mvwWqvgi

wewµqvq Kx Drcbœ nq ? K C2H6 L C4H10 M CH3CH2OH N CH4 13. A¨vj‡K‡bi mvaviY ms‡KZ †Kvb&wU ? K CnH2n+1OH L CnH2n+2

M CnH2n+1COOH N C6H5OH 14. A¨vj‡Kvn‡ji wµqvkxjg�jK n‡”Q ⎯ K -COOH L -OH M C2H5

- N CH3-

15. wb‡Pi †Kvb&wU ivmvqwbK cwieZ©b ? K †jvnvq gwiPv cov L cvwb‡Z jeY wgwk‡q mgmZ¡ wgkªY ˆZwi

Kiv M eid n‡Z cvwb ˆZwi N Pz¤^K ˆZwi 16. cvwbi GKwU AYyi fi KZ ? K 3.95 × 10-22 MÖvg L 3.95 × 1022 MÖvg M 2.95 × 1023 MÖvg N 2.95 × 10-23 MÖvg 17. cÖgvY ZvcgvÎv I Pvc ej‡Z eySvq ? K 25°C I 1 atm cvi‡ì Pvc L 0°C I 1 cm cvi‡ì Pvc M 250°C I 1 cm cvi‡ì Pvc N 0°C I 1 atm cvi‡ì Pvc 18. †ebwR‡bi ¯’ �j ms‡KZ †Kvb&wU ? K CHO L CNH2 M CH N CH2 19. wbDUªb Avwe®‹vi K‡ib †K ? K iv`vi‡dvW© L P¨vWDBK M A¨v‡fv‡M‡Wªv N Wvëb 20. Na+ G B‡jKUªb msL¨v KZ ? K 11 L 12 M 10 N 9 21. wµcU‡bi †kl K¶c‡_ KqwU B‡jKUªb _v‡K ? K 8 L 4 M 2 N 1 22. nvB‡Wªv‡R‡bi AvB‡mv‡Uvc wUªwUqv‡gi g‡a¨

KqwU †cÖvUb _v‡K ? K 4 L 3 M 2 N 1 23. bx‡Pi †Kvb& Zwor we‡k−l‡Yi mvnv‡h¨ wb®‹vkb

Kiv hv‡e ? K †jW L Kcvi M wRsK N A¨vjywgwbqvg 24. wj‡gvbvBU †Kvb& avZzi AvKwiK ? K †mvwWqvg L g¨vM‡bwmqvg M wjw_qvg N Avqib 25. †Kvb& †hŠMwU LyeB welv³ ? K CO2 L CO M SiO2 N NH3 26. CH3 - CH = CH - CH3 †hvMwUi bvg Kx ?

K 1-weDwUb L 2-weDwUb M 3-weDwUb N 4-weDwUb 27. cUvk Gjv‡gi ms‡KZ †Kvb&wU ? K AlSO4. K2SO4. 24H2O L Al2(SO4)3. K2SO4. 24H2O M Al2(SO4)3. K(SO4)2. 22H2O N Al(SO4)3. KSO4. 22H2O 28. AvaywbK ixwZ Abyhvqx cvigvYweK f‡ii cÖgvY

n‡”Q ⎯ K cÖvK…wZK Aw·‡R‡b cigvYyi Mo f‡ii

116 Ask

L GKwU Aw·‡Rb 16 cigvYyi f‡ii 116 Ask

M GKwU Kve©b 12 cigvYyi f‡ii 112 Ask

N nvB‡Wªv‡Rb cigvYyi f‡ii mgvb 29. †Kvb M¨v‡mi AvYweK fi 88 n‡j, Gi

ev®•NbZ¡ KZ ? K 88 L 44 M 32 N 98 30. †Kvb&wU A¨vjywgwbqvg mvj‡d‡Ui ms‡KZ ? K Al2(SO4)3 L AlSO4 M Al3(SO4)2 N Al(SO4)2 31. GwmwUwj‡bi MvVwbK ms‡KZ †Kvb&wU ? K H - C ≡ N L H - C = C - H M H - C = N N H - C ≡ C - H 32. ch©vq mviYx‡Z n¨v‡jv‡Rbmg�‡ni Ae¯’vb

†Kvb& MÖ“‡c ? K MÖ“c I L MÖ“c III M MÖ“c VI N MÖ“c VII 33. ¶vi avZzmg�‡ni mwµqZvi µg n‡”Q ⎯ K Cs > Rb > K > Na > Li L Cs > Li > Na > K M Li > Na > K > Cs N Na > Cs > Rb > K 34. H2 + Cl2 = 2HCl G wewµqvwU †Kvb& cÖKvi

bq ? K RviY-weRviY wewµqv L ms‡hvRb M ms‡k−lY N cÖkgb 35. ivmvqwbK wewµqvi †¶‡Î †Kvb&wU Aek¨B

cÖ‡qvRbxq ? K Av‡jv L Zvc M wewµqKmg�‡ni g‡a¨ ms¯•k© N cÖfveK

DËigvjv

1 N 2 K 3 K 4 L 5 M 6 N 7 K 8 K 9 N 10 K 11 N 12 L 13 K 14 L 15 K 16 N 17 N 18 M 19 L 20 M 21 K 22 L 23 N 24 N 25 L 26 L 27 L 28 M 29 L 30 K 31 N 32 N 33 K 34 N 35 M

†evW© cix¶vi cªkœ I DËi : ˆbe© w³K ewikvj †evW©


57. ewikvj †evW©-2008 imvqb : ˆbe© w³K cÖkœ 1. wb‡Pi †KvbwUi Avš�tAvYweK kw³ me‡P‡q

†ewk ? K Zij bvB‡Uªv‡Rb L cvwb

M Lv`¨ jeY N †K‡ivwmb 2. ch©vq mviwY‡Z KqwU ch©vq we`¨gvb ? K 4wU L 5wU

M 6wU N 7wU 3. BDwiqvi ms‡KZ wb‡Pi †KvbwU ? K NH2 – CO – NH2 L CH3CH2OH M CH3COONH4 N CH3COOCH2CH3 4. wb‡Pi †KvbwU AavZz ? K mvjdvi L †mvwWqvg

M wRsK N K¨vWwgqvg 5. wb‡Pi †KvbwU †fŠZ cwieZ©b ? K †gvg R¡vjv‡bv L wPwb I cvwbi `ªeY

M cvwbi Zwor we‡k−lY N †jvnvq gwiPv cov 6. GK cigvYy BD‡iwbqv‡gi fi KZ ? K 3.95 × 1022 MÖvg L 1.67 × 1024 MÖvg

M 2.99 × 1023 MÖvg N 3.0 × 1023 MÖvg

7. Wvë‡bi cigvYyev` cÖKvwkZ nq ⎯ K 1803 mv‡j L 1703 mv‡j

M 1903 mv‡j N 1603 mv‡j 8. GK MÖvg nvB‡Wªv‡R‡b KZwU nvB‡Wªv‡Rb

cigvYy Av‡Q ? K 6.022 × 10-23 wU L 6.022 × 1023 wU

M 1.673 × 10-24 wU N 1.66 × 10-22 wU 9. GK †gvj †mvwWqvg Kve©‡bU mgvb KZ MÖvg ? K 53g L 40g

M 6022 × 1023g N 106 g

10. A¨v‡fv‡M‡Wªv msL¨vi gvb KZ ? K 6.022 × 1023L 6.022 × 10–22

M 6.022 × 10–23N 2.99 × 1023

11. dm‡dU †hŠMg�j‡Ki †hvRbx n‡”Q ⎯ K 1 L 2 M 3 N 4

12. wb‡Pi †KvbwU g¨vM‡bwmqvg bvB‡Uª‡Ui ms‡KZ ?

K Mg2NO3 L Mg (NO3)2

M MgNO3 N Mg(NO3)3

13. CuO + C = Cu + CO G wewµqvwU ⎯ K wØ-we‡hvRb L cÖkgb M we‡hvRb N RviY-weRviY 14. N2(g) + 2H2 (g) G2H3 (g), G

wewµqvq ∆H Gi gvb KZ ? K 92kJ L –92kJ M 102kJ N –102kJ

15. 2713 Al3+ Gi †¶‡Î †Kvb K_vwU mZ¨ bq ?

K G‡Z 13 wU †cÖvUb Av‡Q L G‡Z 13 wU wbDUªb Av‡Q M Gi †cÖvUb I wbDUª‡bi msL¨v 27 N G‡Z 13 wU B‡jKUªb Av‡Q 16. cÖgvY Ae¯’vq NH3 Gi ev®• NbZ¡ KZ

?

K 8.5 L 14 M 9 N 19 17. nvB‡Wªv‡RvwqK Gwm‡Wi MvVwbK ms‡KZ

n‡”Q ⎯ K H – N = N ≡ N L H– N ≡ N =N M H – C ≡ C N H – N ≡ N ≡ N 18. wb‡Pi †KvbwU mg‡hvRx †hŠM ? K AlCl3 L CaCl2

M MgCl2 N PCl3

19. ch©vq mviwYi mwZ¨Kvi wfwË wK ? K cigvYweK fiL cvigvYweK msL¨v M cigvYyi AvqZbN B‡jKUªb web¨vm 20. †mvwWqvg †K¬vivB‡Wi Rjxq `ªe‡Yi Zwor

we‡k−l‡Yi mgq A¨v‡bv‡W †Kvb c`v_©wU Drcbœ nq ?

K †K¬vwib M¨vmL†mvwWqvg nvBWª·vBW M nvB‡Wªv‡Rb N †mvwWqvg avZz 21. Zvc ivmvqwbK mgxKi‡Y cÖgvY ZvcgvÎv

n‡”Q ⎯ K 0°C L 25°C M 100°C N 273°C 22. wb‡Pi †KvbwU mwµqZvi µ‡g mevi wb‡P ? K K L Ag M Fe N Cu 23. ch©vq mviwY‡Z n v‡jv‡Rbmg�‡ni Ae ’vb ⎯

K MÖ“c I L MÖ“c II M MÖ“c IV N MÖ“c VII 24. XvjvB †jvnvq g¨v½vwb‡Ri kZKiv

cwigvY KZ ? K 4% L 0.4% M 1.1% N 0.10% 25. GKwU Zxeª GwmW I GKwU Zxeª ¶v‡ii

wewµqvq cÖkgb Zvc n‡”Q ⎯ K –57.3 kJ L 57.3 kJ M 100 kJ N –92kJ 26. K¶ ZvcgvÎvq †Kvb avZzwU cvwbi mv‡_

`ª“Z wewµqv K‡i ? K Kcvi L A¨vjywgwbqvg M g¨vM‡bwmqvg N cUvwmqvg 27. †mvwWqvg wRs‡K‡Ui mwVK ms‡KZ n‡”Q

⎯ K Na2 Zn(OH)4L NaZnO2

M Na2ZnO3 N Na2ZnO4

28| wb‡Pi †Kvb avZzi jeY wkLv cix¶vq B‡Ui b¨vq jvj eY© †`Lvq ?

K †mvwWqvg L K¨vjwmqvg M cUvwmqvg N Kcvi 29. †Kvb M¨vmwU HNO3 Drcbœ K‡i ?

K NO3 L N2O M NO N NO2

30. wb‡Pi †KvbwU wbi‡c¶ A·vBW ? K CO2 L P2O3

M NO2 N CO 31. AavZz nIqv m‡Ë¡I wb‡Pi †Kvb †gŠjwU

weRviK? K Aw·‡Rb L bvB‡Uªv‡Rb M wmwjKb N Kve©b 32| †Kvb GwmWwU wbiƒ K ? K H3PO4 L H2SO4

M HNO3 N HCl 33. wb‡Pi †KvbwU A¨v‡iv‡gwUK †hŠM ? K †cÖv‡cb L weD‡Ub M b¨vc‡_wjb N †cw›Ub 34| PCl5 †KvbwUi mv‡_ wewµqv K‡i bv ? K C2H4 L CH3OH M CH3COOH N C2H5OH 35. M −y‡Kv‡Ri ¯’‚j ms‡KZ n‡”Q ⎯ K CH2 L C6H6

M CH2O N CHO

DËigvjv 1 M 2 N 3 K 4 K 5 L 6 K 7 K 8 L 9 N 10 K 11 M 12 L 13 N 14 L 15 N 16 K 17 K 18 N 19 N 20 K 21 L 22 L 23 N 24 L 25 K 26 N 27 K 28 L 29 N 30 N 31 N 32 L 33 M 34 K 35 M


58. ewikvj †evW©-2007 imvqb : ˆbe© w³K cÖkœ 1. wb‡Pi †KvbwU ejq cix¶v †`q? K Kve©‡bU L bvB‡UªU M mvj‡dU N †K¬vivBW 2. †KvbwU ch©vq mviYxi mwZ¨Kvi wfwË? K cvigvYweK fi L cvigvYweK msL¨v M cigvYyi AvKvi N B‡jKUªb web¨vm 3. †mvwWqvg †K¬vivBW Ges K¨vjwmqvg

†K¬vivBW wgkÖ‡Yi Mjbv¼ KZ? K 600°C L 801°C M 1000°C N 900°C 4. †KvbwU M¨vm bq? K SO2 L SiO2 M SO3 N N2O 5. †Kvb avZzi jeY wkLv cix¶vq †Kvb eY©

†`Lvq bv? K †mvwWqvg L cUvwmqvg M g¨vM‡bwmqvg N Kcvi 6. nvB‡Wªv‡K¬vwiK GwmW Pzbvcv_‡ii mv‡_

wewµqv K‡i †Kvb M¨vmwU Drcbœ K‡i? K CO2 L H2 M O2 N Cl2

7. PCl3 †Kvb †hŠ‡Mi mv‡_ wewµqv Ki‡e bv?

K CH3OH L CH3COOH M C2H5OH N C2H4

8. wbDUª‡bi Avmj fi KZ? K 9.11 × 10

–28 MÖvg L 1.675 × 10

–24MÖvg M 1.675 × 1028MÖvg N 1.675 × 1024MÖvg 9. Al3+ G B‡jKUª‡bi msL¨v KZ?

K 6wU L 8wU M 10wU N 12wU 10. wb‡Pi wewµqvwU †Kvb cÖKv‡ii bq?

H2+Cl2 = 2HCl K RviY-weRviY L ms‡k−lY M ms‡hvRb N cÖkgb 11. 16 MÖvg wg‡_b †cvov‡j KZ Zvc wbM©Z

nq? K 242 wK Ryj L 890 wK Ryj M 658 wK Ryj N 244 wK Ryj 12. Rjxq †mvwWqvg †K¬vivBW `ªe‡Yi Zwor

we‡k−l‡Y †Kvb c`v_©wU Drcbœ nq bv?

K †mvwWqvg L †mvwWqvg nvB‡Wªv·vBW M nvB‡Wªv‡Rb N †K¬vwib 13. Avqib (III) †hŠ‡Mi eY© wKiƒc? K meyR L Kv‡jv M njy ev jvj N bxj 14. wb‡Pi †Kvb †hŠMwU A¨vjwKb? K C3H8 L C2H6 M C4H8 N C4H10

15. M¨vm AvqZb m�Î Avwe®‹vi K‡ib †K? K Wvëb L †M-jym¨vK M wiKUvi N ev‡R©wjqvm 16. †Kvb c`v_©wU DËv‡c mivmwi ev‡®• cwiYZ

nq? K Av‡qvwWb L †jvnv M evwj N cv_i 17. _v‡qvmvj‡dU g�j‡Ki †hvRbx KZ? K GK L `yB M wZb N Pvi 18. cÖgvY ZvcgvÎv I Pv‡c 16 MÖvg

Aw·‡R‡bi AvqZb KZ? K 11.2 wjUvi L 22.4 wjUvi M 44.8 wjUvi N 11.2 wgwj wjUvi 19. †KvbwU AvqwbK †hŠM? K NH3 L H2O M CH4 N MgO 20. †KvbwU Dfagx© A·vBW? K CO L CO2 M CaO N ZnO 21. GKwU cigvYyi e¨vm KZ? K 10

–10 †m.wg. L 10–15 †m. wg.

M 10–8 †m. wg. N 1018 †m.wg.

22. mvevb cÖ � ywZi mgq †KvbwU DcRvZ wn‡m‡e ˆZwi nq?

K B_vbj L B_vbwqK GwmW M wg_vbj N wM−mvwib 23. mKj avZzi †Kvb jeY cvwb‡Z `ªeYxq? K Kve©‡bU L bvB‡UªU M mvj‡dU N †K¬vivBW 24. †Kvb M¨vmwUi eY© ev`vgx? K CO L CO2 M NO2 N NO

25. †Kvb avZzwU ¶vi‡Ki mv‡_ wewµqv K‡i bv?

K Cu L Al M Zn N Pb 26. †Kvb wewµqvq ∆H-Gi gvb FYvÍK? K Zvcnvix L Zv‡cvrcv`x M we‡hvRb N cÖwZ¯’vcb 27. wb‡Pi †KvbwU wRs‡Ki AvKwiK ? K wj‡gvbvBU L e·vBU M g¨vM‡bUvBU N K¨vjvgvBb 28. †Kvb M¨vmwU evqyi EaŸ©gyLx AcmviY Øviv

msMÖn Kiv nq? K O2 L H2 M CO2 N NH3 29. Rjxq ev‡®•i ev®• NbZ¡ KZ? K 9 L 18 M 36 N 32 30. wb‡Pi †KvbwU ivmvqwbK mvg ve ’v

cwieZ©b Ki‡Z cv‡i bv? K ZvcgvÎv L Pvc M wewµqv cv‡Îi AvKvi N wewµq‡Ki NbgvÎv 31. †mvwWqvg A¨vjywg‡bU Gi mwZ¨Kvi

ivmvqwbK ms‡KZ †KvbwU? K NaAl (OH)4 L Na2Al2O2 M NaAl2O3 N Na2AlO3 32. wb‡Pi †KvbwU mn‡R Rjxq ev®• †kvlY

Ki‡Z cv‡i? K Zzjv L †evib A·vBW M wmwjKv †Rj N Pzbvcv_i 33. †jey‡Z †Kvb GwmW _v‡K? K Kve©wbK GwmW L B_vbwqK GwmW M A·vwjK GwmW N mvBwUªK GwmW 34. wb‡Pi †Kvb †gŠjwU Dw™¢‡ i Rb¨

AcÖ‡qvRbxq ev me‡P‡q Kg cÖ‡qvRb? K Kve©b L †K¬vwib M dmdivm N bvB‡Uªv‡Rb 35. †KvbwU A¨vwj‡dwUK †hŠM bq? K weD‡Ub L Bw_b M B_vbj N b¨vc‡_wjb

DËigvjv

1 L 2 L 3 K 4 L 5 M 6 K 7 N 8 L 9 M 10 N 11 L 12 K 13 M 14 M 15 L 16 K 17 L 18 K 19 N 20 N 21 M 22 N 23 L 24 M 25 K 26 L 27 N 28 M 29 K 30 M 31 K 32 M 33 N 34 L 35 N


59. ewikvj †evW©-2006 imvqb : ˆbe© w³K cÖkœ 1. wb‡Pi †Kvb c`v‡_©i Avš�tAvYweK kw³

me‡P‡q Kg ? K nvB‡Wªv‡Rb L cvwb M mvaviY jeY N †K‡ivwmb ˆZj 2. cwieZ©bkxj †hvR¨Zv cÖ k©b K‡i †KvbwU

? K wRsK L †mvwWqvg M cUvwmqvg N mvjdvi 3. †K¬vwib cigvYyi fi msL¨v KZ ? K 17 L 18 M 35.5 N 11 4. AvqwbK eÜ‡bi aviYv †`bÑ K Wvëb L cÖvDm M f¨vÛvi Iqvjm N†Kv‡mj 5. wµÞ‡bi me© ewnt ’ �‡i B‡jKUªb msL v

KZ? K 4 L 6 M 2 N 8 6. ei‡di Mjbv¼ KZ ? K 100°C L 0°C M 4°C N 96°C 7. ivmvqwbK wewµqvi †¶‡Î †KvbwU Aek¨B

cÖ‡qvRbxq ? K Zvc L Av‡jvK M cÖfveK N wewµqKmg�‡ni g‡a¨ ms¯•k© 8. Bu yi gvivi wel ˆZwi‡Z †KvbwU eëüZ nq

? K S L P M Cl N N 9. mvjdvi UªvB-A·vBW wk‡ívrcv`‡b

eëüZ cÖfveK n‡eÑ K MnO2 L Al2O3 M V2O5 N P2O5

10. †jŠn avZzi wb®‹vkb GKwUÑ K cÖfveb cÖwµqv L RviY cÖwµqv M Zwor we‡k−lY cÖwµqv N weRviY cÖwµqv 11. wb‡Pi †Kvb avZz GwmW n‡Z

nvB‡Wªv‡Rb‡K AcmviY Ki‡Z cv‡i bv ? K Mg L Pb M Ag N Fe 12. Zvc ivmvqwbK mgxKi‡Y cÖgvY ZvcgvÎv

n‡”QÑ

K 0° †m. L 30° †m. M 25° †m. N 100° †m. 13. †cÖvjs hš � †Kvb avZz wb®‹vk‡b eëüZ nq

? K Fe L Cu M Zn N Al 14. 40°C ZvcgvÎvq DËß KwjPz‡b †K¬vwib

M¨vm Pjbv Ki‡j †KvbwU Drcbœ nq ? K †K¬v‡ivdig L we −wPs cvDWvi M Lvevi jeY N WªvB AvBm 15. †Kvb †hŠMwU LyeB welv³ ? K SO2 L SiO2 M NH3 N CO 16. wb‡Pi †KvbwU eY©nxb ? K NO L N2O4 M NO2 N PbI2

17. †Kvb M¨vm AwMœwbe©vcK wn‡m‡e eëüZ nq ? K CO L CO2 M H2 N O2

18. CH3COOH Ñ GBwUi bvg wK ? K diwgK GwmW L GwmwUK GwmW M d¨vwU GwmW N IwjK GwmW 19. wb‡Pi †KvbwU A¨vjKvBj g�jK ? K C2H6 L C2H5 M C3H6 N C2H2 20. cigvYy I AYyi eZ©gvb msÁv cÖ vb K‡ib

†Kvb weÁvbx ? K A¨v‡fv‡M‡Wªv L ev‡R©wjqvm M Wvëb N wiKUvi 21. nvB‡Wªv‡RvwqK Gwm‡Wi MvVwbK ms‡KZ

†KvbwU? K H – C = N L H –N = N = N M H – N = N ≡ N N H – O – O – H 22. wØ‡hvRx g�jK †KvbwU ? K NO2 L PO4 M CN N SO3 23. †KvbwU‡Z `yBwU wbDUªb Av‡Q ? K nvB‡Wªv‡Rb L wWD‡Uwiqvg M wUªwUqvg N wjw_qvg 24. wb‡Pi †Kvb †gŠj wewµqvq AskMÖnY K‡i bv

? K Na L Pb M He N Cu 25. cvwb k�b¨ Kcvi (II) mvj‡dU cvwbi

ms¯•‡k© Avm‡j wK eY© aviY K‡i ? K jvj L †e¸wb M bxj N meyR 26. Aw·‡Rb M¨vm cvwb‡ZÑ K AZ¨š� `ªeYxq L ¯vfvweK `ªeYxq M Clr `ªeYxq N A`ªeYxq 27. †Kvb M¨vm †_‡K cPv wW‡gi MÜ †ei nq

? K CO2 L CO M H2S N N2O 28. wM−mvwib GK cÖKviÑ K G÷vi L d¨vwU GwmW M ˆRe GwmW N A¨vj‡Kvnj 29. †Kvb avZzi weRviY ¶gZv me‡P‡q †ewk

? K †jW L Avqib M Kcvi N wmjfvi 30. B_vb‡ji mgvYyK †KvbwU ? K wg_vbj L WvBwg_vBj B_vi M WvBwg_vBj wK‡Uvb N wK‡Uvb 31. ey ‡iU I wc‡cU ‰Zwi‡Z †KvbwU eëüZ

nq? K †jW A·vBW L †µvwgqvg A·vBW M †evib A·vBW N cUvwmqvg A·vBW 32. †KvbwU kw³kvjx RviK ? K HCl L H2SO4 M HNO3 N H3PO4

33. †Kvb †hŠMwU mg‡hvRx bq ? K LiCl L HCl M PCl3 N -Cl2

34. AvB‡mv‡Uv‡ci †¶‡Î †KvbwU mZ¨ ? K fi msL¨v GKB _v‡K L †cÖvUb msL¨v GKB, wKš‘ fi msL¨v

wfbœ M wbDUªb msL¨v GKB N †KvbwUB bq 35. M −y‡Kv‡Ri AvYweK fi KZ ?

K 280 L 90

M 140 N 180

DËigvjv

1 K 2 N 3 M 4 N 5 N 6 L 7 N 8 L 9 M 10 N 11 M 12 M 13 M 14 L 15 N 16 K 17 L 18 L 19 L 20 K 21 M 22 N 23 M 24 M 25 M 26 M 27 M 28 N 29 L 30 L 31 M 32 M 33 K 34 L 35 N


60. ewikvj †evW©-2005 imvqb : ˆbe© w³K cÖkœ 1. GKwU †jvnvi UzKiv‡K Pz¤K Øviv Nl©Y

Ki‡j Zv Pz¤KZ¡ cÖvß nq GwU †Kvb& ai‡bi cwieZ©b?

K †fŠZ I ivmvqwbK cwieZ©b L ivmvqwbK cwieZ©b M †Kvb cwieZ©bB nq bv N †fŠZ cwieZ©b 2. mvwRgvwU‡Z †Kvb&wU cvIqv hvq? K Na2CO3 L NaNO3 M Na2SO3 N NaHCO3 3. Aw·‡R‡bi ga¨ w ‡q wbtkã we y r

¶i‡Yi gva¨‡g †Kvb&wU Drcbœœ nq? K NO L O3 M N2O N N2O4 4. Zvc ivmvqwbK mgxKi‡Y cÖgvY ZvcgvÎv

KZ? K 0°C L 273 K M 298 K N 10° C 5. ¶vi avZzmg�‡ni †¶‡Î mwµqZvi µg

n‡”QÑ K Cs>Rb>K>Na>Li L Li>Na>K>Rb>Cs M K>Na>Li>Cs>Rb N Cs>Rb>Na>K>Li

6. 2713 Al3+-Gi B‡jKUªb msL¨v KZ?

K 14 wU L 14 wU M 10 wU N 16 wU 7. GK j¶ nvB‡Wªv‡Rb cigvYyi g‡a¨

wWD‡Uwiqvg cigvYyi msL¨v KZ? K 99985 wU L 15 wU M 25 wU N 995 wU 8. ¸YvbycvZ m�Î cÖKvk K‡ib †K? K †M jymvK L wiKUvi M cÖvDm N Rb Wvëb 9. A¨v‡gvwbqv AYy MV‡b bvB‡Uªv‡R‡bi KqwU

gy³‡Rvo B‡jKUªb Av‡Q? K 1 wU L 2 wU M 3 wU N 4 wU 10. mvjdvi WvB-A·vB‡W mvjdv‡ii myß

†hvRbx KZ? K 2 L 4 M 6 N 3 11. ÒGKB ZvcgvÎv Ges GKB Pv‡c mg

AvqZbwewkó mKj M¨v‡m mgvb msL¨K cigvYy _v‡KÓÑG K_vi cÖe³v †K?

K A¨v‡fv‡M‡Wªv L Wvëb

M †M jymvK N ev‡R©wjqvm 12. H2SO4-Gi GKwU AYyi fi KZ? K 1⋅67×10–24 g L 1⋅63×10–22 g M 98⋅0 g N 98⋅08 g 13. wb‡Pi †Kvb& avZz‡K Kve©b weRviY

cÖwµqvq wb®‹vkb Kiv nq? K Al L Mg M Zn N Na 14. †ebwR‡bi ¯’‚j ms‡KZ †Kvb&wU? K CH L CH4 M CH2 N C2H2

15. Pz‡bi cvwb‡Z AwaK cwigv‡Y Kve©b WvB-A·vBW Pvjbv Ki‡j wK Drcbœ nq?

K CaCO3 L Na2 CO3 M H2CO3 N Ca(HCO3)2

16. IwjK Gwm‡Wi ms‡KZ †Kvb&wU? K C15H31COOH L C17H33COOH M C17H35COOH N C15H35COOH 17. A¨vj‡Kvnjmg�‡ni mvaviY ms‡KZ

†Kvb&wU? K CnH2n OH L CnH2n+2 OH M CnH2n+1 OH N CnH2n+1 R 18. †Kvb&wU AvqwbK †hŠM? K AlCl3 L PCl3 M H2S N NH3

19. wg‡_‡bi ùzUbv¼ KZ? K –183° C L –162° C M – 172° C N –152° C 20. fi Abycv‡Z f‚-Z¡‡Ki KZ fvM wmwjKb? K 14% L 24% M 38% N 28% 21. djg�j cPb‡iv‡a †Kvb&wU eëüZ nq? K H2S L SO3 M SO2 N H2SO4 22. mvjdvi AYyi mwVK ms‡KZ n‡”QÑ K S4 L S8 M S7 N S6

23. µv‡qvjvB‡Ui ms‡KZ †Kvb&wU? K Na3AlF6 L Na2AlF6 M Na3Al3F6 N Na2Al6F2

24. Lwb n‡Z mvjdvi wb®‹vk‡b †Kvb& c×wZ eënvi Kiv nq?

K ¯•k© c×wZ L AmIqvì c×wZ M d«vk c×wZ N WvD‡bi c×wZ

25. uv‡Zi gvRb ˆZwi Ki‡Z †Kvb&wU eëüZ nq?

K MgCO3 L CaSiO3 M Ca3(PO4)2 N CaCO3

26. MÖvdvB‡Ui gy³ B‡jKUªb msL¨v KZ? K 1 L 2 M 3 N 4 27. wb‡æi †Kvb& avZz wkLv cix¶vq †Kvb eY©

†`q bv? K Na L K M Mg N Ca 28. iÄb wk‡í iO-eÜKiƒ‡c †Kvb&wU eëüZ

nq? K Fe(NO3)2 L Fe(NO3)3 M FeSO4 N Fe2(SO4)2 29. Avqi‡bi wbw®ŒqZvi Rb¨ †Kvb&wU `vqx? K FeO L Fe2O3 M Fe2O3, nH2O N Fe3O4 30. Rvbvjvi KvP cÖ ‘wZ‡Z †Kvb&wU eëüZ

nq? K Av`ª© †mvwWqvg mvj‡dU L †mvwWqvg mvj‡dU M K¨vjwmqvg mvj‡dU N g¨vM‡bwmqvg mvj‡dU 31. †mvwWqvg †K¬vivBW I K¨vjwmqvg

†K¬vivB‡Wi wgkÖ‡Y Mj‡bi ZvcgvÎv KZ? K 600° C L 801° C M 1000° C N 900°–950° C 32. ivmvqwbK mvg¨ve¯’v n‡”QÑ K w¯’ive¯’v L w¯’wZ Ae¯’v M wbðj Ae¯’v N MwZgq Ae¯’v 33. †Kvb ivmvqwbK wewµqvq Zvc

cwieZ©b‡K wK Øviv cÖKvk Kiv nq? K ∆A L ∆H M ∆Q N ∆T 34. wb‡æi †Kv&bwU RviK c`v_©? K nvB‡Wªv‡Rb L MÖvdvBU M wmjfvi N cUvwkqvg cvig¨v½v‡bU 35. ∆H Gi gvb †Kvb&wUi Dci wbf©i K‡i

bv? K c`v‡_©i Ae¯’vL ZvcgvÎv M c`v‡_©i AvKviN Pvc

DËigvjv

1 N 2 K 3 L 4 M 5 K 6 M 7 L 8 N 9 L 10 K 11 N 12 N 13 M 14 K 15 N 16 L 17 M 18 K 19 L 20 N 21 M 22 L 23 K 24 M 25 N 26 K 27 M 28 L 29 N 30 K 31 K 32 N 33 L 34 N 35 M


61. ewikvj †evW©-2004 imvqb : ˆbe© w³K cÖkœ 1| mKj avZzi †Kvb jeY cvwb‡Z `ªeYxq ? K Kve©‡bU L dm‡dU M bvB‡UªU N mvj‡dU 2| ivbœvi Rb wmwjÊv‡i †h M vm wewµ Kiv nq Zv

n‡”Q- K †c‡Uªvj L A‡±b M wg‡_b N weD‡Ub 3| Avqib (III) A·vBW †Kvb e‡Y©i ? K Kv‡jv L meyR M jvj N njy` 4| KZ mv‡j i“k weÁvbx †g‡Êjxd †gŠjmg�‡ni

GKwU we‡kl ZvwjKv cÖKvk K‡ib ? K 1834 mv‡j L 1869 mv‡j M 1907 mv‡j N 1913 mv‡j 5| Nwoi †PB‡bi iycvi gZ D¾¡j c v_©wU wK‡mi cÖ‡jc ? K wb‡K‡ji L iycvi M †µvwgqv‡gi N †÷Bb‡jm w÷j 6| †Kvb c×wZ‡Z A¨v‡gwbqv †_‡K bvBwUªK

GwmW cÖ¯‘Z Kiv nq ? K AmIqvì L †P¤^vi M ‡nevi N ¯•k© 7| B_vbj I mvjwdDwiK Gwm‡Wi wewµqvq †Kvb

†hŠM MwVZ nq bv ? K CH3COOH L C2H4 M C2H5–O–C2 H5 N C2H5SO4H 8| 2KMnO4(aq) + 5H2C2O4(aq) + 3H2SO4(aq)

= K2SO4(aq) + 2MnSO4(aq) + 8H2O(1) + 10 CO2(g) wewµqvq weRviK †KvbwU ?

K KMnO4 L H2C2O4 M H2SO4 N MnSO4 9| _v‡qv-mvj‡dU g�j‡Ki ms‡KZ †KvbwU ? K S2O3 L S3O2 M 2S2O4 N SO3 10| HNO3(aq) + NaOH(aq) = NaNO3(aq) + H2O(l)

GB wewµqvq ∆H KZ ? K –57.23kJ L –58.78kJ M –57.28 kJ N –57.32 kJ 11| wewµqvi MwZ‡eM wØ¸Y e„w×i Rb¨ KZ

ZvcgvÎv e„w× Ki‡Z nq ?

K ( )100 × 110

° †M

L ( )100 × 120

° †M

M ( )100 × 150

° †M

N ( )100 × 1100

° †M

12| †Kvb †hŠ‡M H– Av‡Q ?

K wg‡_b L cvwb M A¨v‡gvwbqv N K¨vjwmqvg nvBWªvBW 13| Kv÷ Avqi‡b kZKiv KZ fvM g¨vsMvwbR

_v‡K ? K 0.10% L 0.4% M 1-1.5% N 2-4.5% 14| cUvwmqv‡gi cigvYweK fi KZ ? K 39.9 L 126.9 M 39.1 N 127.6 15| †Kvb c`v_©wU Zvc cÖ‡qv‡M mivmwi ev‡®•

cwiYZ nq ? K NaCl(s) L H2O(s) M I2(s) N CuSO4. 5H2O(s) 16| 6.02 × 1023 wU B‡jKUª‡bi Pv‡R©i msL v KZ ? K 9.66 × 10–4 coulomb L 9.56 × 104 coulomb M 96500 coulomb N 965000 coulomb 17| GKgvÎ AavZz †KvbwU hv we`y r mycwievnx ? K Kve©b L wmwjKb M MÖvdvBU N dmdivm 18| wb‡Pi †Kvb wewµqvwU Av‡jvi cÖfv‡e N‡U bv ? K CH4 + Cl2 = C + 4HCl L CH4 + Cl2 = CH3Cl + HCl M 2KClO3 + [MnO2] = 2KCl

+ 3O2 + [MnO2] N 6H2O + CO2 = C6H12O6 + 6CO2 19| KxUbvkK ˆZwi‡Z e¨envi nq †KvbwU ? K S L P M Cl N N 20| K…wÎg wmé †KvbwU ? K B_vBj A vwm‡UU L wfbvBj A¨vwm‡UU M A¨vgvBj A¨vwm‡UU N ‡mjy‡jvR A¨vwm‡UU 21| †Kvb †gŠjwUi cÖZx‡K 'T' eY©wU †bB ? K Thallium L Thorium M Thulium N Tin 22| cigvYy AwefvR¨ GwU Kvi gZev` ? K cÖvDm L G¨vwi÷Uj M Wvëb N wiKUi 23| e¨vc‡bi DrcwËi KviY AYymg�‡ni- K weKl©Y L AvKl©Y M MwZkxjZv N meKwU 24| g‡bv‡K¬v‡iv B_vqwbK Gwm‡Wi ms‡KZ wK ? K CH2ClCOOH L CHClCOOH M CH2Cl2COOH N CH2Cl2(COOH)2 25| ùzUbvs¼ wK‡mi Dci wbf©ikxj ? K Zv‡ci Dci L Pv‡ci Dci

M kw³i Dci N Avš�tAvYweK kw³i Dci 26| wb‡Pi †Kvb †gŠjwU me‡P‡q Kg mwµq ? K Av‡qvwWb L †d¬vwib M †eªvwgb N ‡K¬vwib 27| †Kvb avZzi jeY wkLv cix¶vq meyRvf bxj

is cÖ k©b K‡i ? K Na L K M Cu N Ca 28| wb‡æi †Kvb †gŠj¸‡jvi cwieZ©bkxj †hvRbx

Av‡Q ? K Al, Na, Ca, K L Fe, P, N, S M Mg, O, C N Cl, C, Zn 29| Av‡jvK Zwor †mj ˆZwi‡Z †Kvb avZzwU

e¨envi Kiv nq ? K Li L K M Na N Ca 30| Kve©b Øviv wRs‡Ki Dc‡ii avZzmg�‡ni

weRviY m¤¢e bq, KviY- K mwµqZv wmwi‡R Kve©b nvB‡Wªv‡R‡bi

bx‡P L H avZzmg�n Kve©b A‡c¶v A‡bK Kg

mwµq M H avZzmg�n Kve©b A‡c¶v kw³kvjx

weRviK N mwµqZv wmwi‡R Kve©b A‡c¶v avZz¸‡jv

A‡bK Dc‡i Aew¯’Z 31| †KvbwU cÖK…wZ‡Z cÖPzi cvIqv hvq ? K CaCO3 L Na2CO3 M MgCO3 N CaCl2 32| H2SO4 †hŠ‡M S Gi †hvRbx KZ ? K 3 L 4 M 2 N 6 33| AvqwbK †hŠ‡Mi Rb¨ †KvbwU cÖ‡hvR¨ bq ? K KwVb Ae¯’vq we`y r mycwievnx L Mjbv¼ †ewk M cvwb‡Z `ªeYxq N Rjxq ªe‡Y AvqwbK nq 34| Aí cwigvY bvB‡UªU jeY‡K Kcvi P‚Y© I Mvp

mvjwdDwiK GwmWmn Zvc w`‡j †Kvb e‡Y©i M¨vm wbM©Z nq ?

K ev`vgx L ‡e¸bx M jvj‡P ev`vgx N njy` 35| wb‡æi †KvbwU cUvwmqvg cvig¨v½v‡b‡Ui

mv‡_ wewµqv Ki‡e bv ? K C2H6 L C2H4 M C2H2 N C3H4

DËigvjv 1 M 2 M 3 M 4 L 5 M 6 K 7 K 8 L 9 K 10 M 11 K 12 N 13 N 14 M 15 M 16 M 17 M 18 M

19 L 20 N 21 N 22 M 23 M 24 K 25 N 26 K 27 M 28 L 29 K 30 M 31 K 32 N 33 K 34 K 35 K


62. ewikvj †evW©-2003 imvqb : ˆbe© w³K cÖkœ 1| †Kvb Avq‡bi mbv³Ki‡Yi Rb¨ wis †U÷ Kiv

nq ? K mvj‡dU L †K¬vivBW M bvB‡UªU N Kve©‡bU

2| ey ‡iU I wc‡cU ˆZwi‡Z †KvbwU eëüZ nq ? K †jW A·vBW L ‡K¬vwgqvg A·vBW M †evib A·vBW N cUvwmqvg A·v&BW 3| weï× B_vbwqK GwmW‡K e‡j- K wf‡bMvi L G÷vi M †K¬v‡ivdig N ‡M−wmqvj GwmwUK GwmW 4| A¨vj‡Kvn‡ji Kvh©Kix g�jK †KvbwU ? K –COOH L –OH M –CN N –NH2

5| A¨vwmwUwj‡bi MvVwbK ms‡KZ- K H–C≡C–H L H–C=C=H M H=C–C=H N H=C–C–H 6| †mvwWqvg †K¬vivB‡Wi Mjbv¼ KZ ? K 408° †mt L 804° †mt M 803° †mt N 801° †mt 7| gwiPvi GKwU MÖnY‡hvM¨ mshywZ n‡jv- K Fe2O3, H2O L Fe2O3, H2O2

M Fe2O3, nH2O N Fe2O3 8| Aw·‡R‡bi GK †gvj n‡”Q- K 16 MÖvg L 32 MÖvg M 32 N 1.66×10–24MÖvg 9| nvB‡Wªv‡Rb Gi GKwU cigvYyi fi- K 3.95×10–22 MÖvg L 1.673×10–24 MÖvg

M 2.99×10–23 MÖvg N1.66×10–24 MÖvg 10| 17 MÖvg A¨v‡gvwbqv‡Z AYyi msL¨v KZ ? K 3.346×1022 wUL 6.023×1024 wU

M 17wU N 6.023×1023 wU 11| WvBbvB‡Uªv‡Rb UªvBA·vB‡W bvB‡Uªv‡R‡bi myß

†hvR¨Zv KZ ? K 1 L 3 M 2 N 4 12| †Kvb †hŠMwU ev®•NbZ¡ Ô23Õ ? K N2O5 L SO2

M CO2 N NO2

13| N-†k‡ji m‡e©v”P B‡jKUªb aviY¶gZv KZ ? K 32 L 18 M 8 N 2

14| ch©vq mviYx‡Z mvjdv‡ii Ae¯’vb n‡”Q- K VIIA-†Z L VIIIA-†Z M VIA-†Z N IIA-†Z

15| ‡Kvb wewµqvwU mwVK ? K Al+HCl=Al + HCl L Al+HCl=Al3Cl+H3

M 2Al+6HCl=2AlCl3+3H2 N 2Al+2HCl=AlCl3+H2

16| H2 + Cl2=2HCl GwU †Kvb ai‡bi wewµqv ? K RviY-weRviY L cÖwZ¯’vcb M ms‡k−lY N cÖkgb 17| Zvc ivmvqwbK mgxKi‡Y cÖgvY ZvcgvÎv

n‡”Q- K 0°C L 100°C M 60°C N 25°C 18| wewµqvi nvi †KvbwUi Dci wbf©i K‡i bv ? K cÖfveK L ZvcgvÎv M wewµq‡Ki NbgvÎv N wewµq‡Ki cvÎ 19| cvwbi AYyi AvK…wZ wKiƒc ? K †KŠwYK L wcivwg‡Wi b¨vq M PZz¯�jKxq N mij‰iwLK 20| ‡KvbwU Zwor Awe‡k−l¨ ? K wPwb L mvaviY jeY M Kcvi mvj‡dU N mvjwdDwiK GwmW 21| 1 K¨vjwi mgvb KZ Ryj ? K 4.18 Ryj L 0.418 Ryj M 41.8 Ryj N 1.48 Ryj 22| GKwU Zxeª GwmW I Zxeª ¶vi‡Ki g‡a¨

cÖkgb wewµqvi Zvc n‡”Q- K 57.3 kJ L –57.3 kJ M 100 kJ N –757 kJ 23| wb‡æi †Kvb avZzwU Zwor we‡k−l‡Yi mvnv‡h¨

wb®‹vkb Kiv nq ? K †jW L Kcvi M wRsK N A¨vjywgwbqvg 24| Kvó Avqi‡bi Kve©‡bi kZKiv cwigvY KZ ? K 0.15% L 0.1−0.25%

M 2.0−4.5% N 0.25−2.5%

25| K¨vjvgvBb n‡jv− K Kcv‡ii AvKwiK L A¨vjywgwbqv‡gi AvKwiK M ‡jvnvi AvKwiK N wRs‡Ki AvKwiK 26| cÖwZ 10°C ZvcgvÎv e„w×i Rb wewµqvi MwZ KZ

Y e„w× cvq ? K 2 ¸Y L 3 ¸Y M 10 ¸Y N 5 ¸Y 27| µvBIjvB‡Ui ms‡KZ †KvbwU ? K Al2O3, nH2O L CaCO3 M Na2CO3

N Na3AlF6

28| †Kvb avZzwU Kve©b Øviv weRviY m¤¢e bq ? K Pb L Fe M Na N Cu 29| wecixZ AbycvZ m�Î †K me©cÖ_g cÖKvk K‡ib ? K Wvëb L wiKUvi M iv`vi‡dvW© N wbDUb 30| ‡Kvb avZzwU Gwm‡Wi mv‡_ wewµqv K‡i bv ? K Kcvi L wRsK M A¨vjywgwbqvg N ‡jW 31| cigvYy I AYyi g‡a¨ me©cÖ_g cv_©K¨ wb‡`©k

K‡ib †K ? K ev‡R©wjqvm L A¨v‡fv‡M‡Wªv M Wvëb N wbDUb 32| ‡gwW‡K‡UW cvDWv‡ii Ask wn‡m‡e †KvbwU

eëüZ nq ? K ZnSO4 L N2O M ZnO N ZnCl2

33| †jLvi Kvwj ˆZwi‡Z †KvbwU eëüZ nq ? K ZnSO4, 7H2O L Al2(SO4)3, 24H2O M FeSO4,7H2O N CuSO4,5H2O 34| cUvwmqvg mycviA·vB‡Wi ms‡KZ †KvbwU ? K KO L K2O M KO2 N KO3

35| jvwds M¨v‡mi ms‡KZ †KvbwU ? K N2O5 L N2O3

M N2O N Cu2O

DËigvjv 1 M 2 M 3 N 4 L 5 K 6 N 7 M 8 L 9 L 10 N 11 M 12 N 13 K 14 M 15 M 16 M 17 N 18 N

19 K 20 K 21 K 22 L 23 N 24 M 25 N 26 K 27 N 28 M 29 L 30 K 31 L 32 M 33 M 34 M 35 M


63. ewikvj †evW©-2002 imvqb : ˆbe© w³K cÖkœ 1| HClO4 †hŠ‡M †K¬vwi‡bi †hvR¨Zv KZ ? K 1 L 3 M 5 N 7 2| Av‡jvK Zwor †mj ˆZwi‡Z †KvbwU eëüZ nq

? K cUvwmqvg L wjw_qvg M †mvwWqvg N K¨vjwmqvg 3| Av`k© DòZv I Pv‡c 1 wjUvi nvB‡Wªv‡R‡bi

fi⎯ K .008986 MÖvg L 0.8986 MÖvg M .89860 MÖvg N .0008986 MÖvg [we:`ª: mwVK DËi n‡e 0.08986 MÖvg] 4| †KvbwU W¨vwb‡qj †Kvl⎯ K Cu⏐CuSO4⏐⏐ZnSO4⏐Zn L ZnSO4⏐Zn⏐⏐CuSO4⏐Cu M Zn⏐ZnSO4⏐⏐CuSO4⏐Cu N Zn⏐ZnSO4⏐⏐Cu⏐CuSO4 5| †KvbwU RviK G¨vwmW? K H2CO3 L HCl M H3PO4 N H2SO4 6| †KvbwUi mv‡_ Av‡qvwWb Mvp bxj eY© aviY K‡i? K Lv`¨ jeY L Zzu‡Z M †mjy‡jvR N ÷vP© 7| GKwU we‡kl cigvYy mgwó GKvwaK MV‡b

weivR Ki‡j cÖ‡Z¨K MV‡bi Rb¨ m„ó AYy‡K wK e‡j?

K †hŠM L †hŠM g�jK M mgvYy N g�jK 8| ivev‡ii fvjKvbvBwRs-G eëüZ nq⎯ K †mvwWqvg L mvjdvi M dmdivm N f¨v‡bwWqvg 9| cÖgvY ZvcgvÎv I Pv‡c Aw·‡R‡bi NbZ¡ KZ

? K 22.4 MÖvg/wjUviL 1.43 MÖvg/wjUvi M 1.25 MÖvg/wjUviN 2.24 MÖvg/wjUvi 10| †Kvb AvqbwUi RviY Am¤¢e? K Cl– L OH–

M Fe+2 N SO4–2

11| e¨vZ¨vPzj−x‡Z weMvjK wn‡m‡e †KvbwU eëüZ nq ?

K SiO2 L CaCO3 M FeO N MnO2

12| 1 d¨viv‡W Avavb KZ Kzj‡¤i mgvb? K 1.6 × 10-19 Kzj¤^ L 9.65 × 104 Kzj¤^ M 6.95 × 104 Kzj¤^ N 6.1 × 10-19 Kzj¤^ 13| †Kvqv›Uvg k‡ãi A_© wK ? K Aby‡gvw`Z K¶c_ L K¶vš�i M cvw_©Z N Zi½ 14| †KvbwU RviY cÖwµqv? K Aw·‡R‡bi AcmviY L B‡jKUªb AcmviY M Zwor abvÍK g�j‡Ki ms‡hvM N nvB‡Wªv‡R‡bi AvswkK AcmviY 15| K…wÎg wmé †KvbwU ? K B_vBj A vwm‡UUL wfbvBj A¨vwm‡UU M A¨vmvBj A¨vwm‡UU N †mjy‡jvR

A¨vwm‡UU 16| GKwU Kve©b cigvYyi fi⎯

K 1 G. Gg. BD L 112 G. Gg. BD

M 12 G. Gg. BD N †KvbwUB bq 17| †Kvb AYywU †cvjvi cÖK…wZi bq ? K C6H12O6 L CH3CH2OH M C6H6 N C12H22O11 18| Aw·‡Rb †_‡K I‡Rvb ˆZwii kZ© †KvbwU ? K wbtkã we`y r¶iYL Zvc M Pvc N Av‡jv 19| mwVK wµqvkxjZvi µg †KvbwU ? K Rb>Cs>K>Na L Cs>Rb>K>Na M Na>Cs>K>Rb N K>Na>Rb>Cs 20| †nUv‡iv A¨v‡ivg¨vwUK †hŠM †KvbwU ? K dzivb L †UUªvnvB‡Wªvdzivb M Bw_wjb A·vBW N A¨vb_ªvwmb 21| CuSO4 ªe‡Yi Zwor we‡k−l‡Y Pt A¨v‡bvW

eënvi Ki‡j †Kvb AvqbwU RvwiZ n‡e? K Cu+2 L SO4

–2

M H+ N OH–

22| †mvwWqvg _v‡qvmvj‡dU `ªe‡Y nvB‡Wªv‡K¬vwiK G¨vwmW †hvM Ki‡j †KvbwUi Aat‡¶c Drcbœ nq ?

K NaCl L S M SO2 N H2O 23| HNO3 Gwm‡Wi wbi“ K †KvbwU ? K N2O L NO2

M N2O5 N N2O3

24| ∆H Gi gvb †KvbwUi Dci wbf©ikxj bq ? K NbgvÎv L ZvcgvÎv M Pvc N c v‡_©i Ae¯’v 25| †KvbwU DaŸ©cvwZZ c`v_©? K CaCl2 L NH4Cl M NaCl N FeCl3 26| †Kvb avZzwU ¶v‡ii mv‡_ wewµqv K‡i bv ? K Zn L Fe M Al N Pb 27| †KvbwU n‡Z meyR KuvP cvIqv hvq? K †Kvevë L Avqib M †evib N †µvwgqvg 28| †KvbwU mvjdv‡ii mv‡_ wewµqv K‡i bv ? K F L Cl M Br N I 29| †KvbwU KLbI KYv I KLbI Zi½ wn‡m‡e

AvPiY K‡i? K †cÖvUb L wbDUªb M B‡jKUªb N cwRUªb 30| Na+ Gi B‡jKUªb msL¨v KqwU ? K 11 L 12 M 10 N 13 31| †KvbwU Aw·‡R‡bi mv‡_ wewµqv K‡i bv ? K Na2SO3 L NO M Na3AsSO3 N SO2 32| PVA ˆZwi‡Z †KvbwU eëüZ nq ? K B‡_b L Bw_b M B_vBb N B_vbj 33| 108 cvigvYweK msL¨vi †gŠj †KvbwU ? K Mt L Bh M Jt N Hn 34| CH3CH2I -Gi mv‡_ avZe †mvwWqv‡gi

wewµqvq †KvbwU Drcbœ nq ? K B‡_b L †cÖv‡cb M weD‡Ub N Bw_b 35| djg�‡ji cPb‡iv‡a †KvbwU eëüZ nq ? K CO2 L SO2 M H2S N CaO

DËigvjv 1 N 2 K 3 L 4 K 5 M 6 N 7 N 8 L 9 L 10 N 11 L 12 L 13 M 14 L 15 N 16 M 17 M 18 K

19 N 20 K 21 N 22 K 23 M 24 N 25 L 26 L 27 N 28 N 29 M 30 M 31 M 32 M 33 L 34 M 35 L


64. ewikvj †evW©-2001 imvqb : ˆbe© w³K cÖkœ 1| †ebwRb I B_vB‡bi ¯’‚j ms‡KZ †KvbwU ? K −CH2− L CH M C2H2 N C6H6 2| †KvbwU †hŠM g�jK bq ? K CO3 LHCO3 M CO2 N PO4 3| jvwds M¨vm wK ? K Aèagx© A·vBW L ¶viagx© A·vBW M Dfagx© A·vBW N wbi‡c¶ A·vBW 4| †j‡Wi wPwb †KvbwU ? K PbCrO4 L Pb(CH3COO)2 M PbO.PbCrO4 N Pb(C2H5)4 5| ï®‹ †Kv‡li abvÍK cÖvš� †KvbwU ? K `¯�vi †Lvj L A v‡gvwbqvg †K¬vivBW M g¨v½vwbR WvBA·vBW N

Kve©b `Ê 6| Aš�tAe¯’vš�i †gŠ‡ji msL¨v KqwU ? K 30wU L 15wU M 14wU N 32wU 7| Kcvi (II) mvj‡dU `ªe‡Y ax‡i ax‡i

A¨v‡gvwbqv `ªeY †hvM Ki‡j †KvbwU ˆZwi n‡e?

K CuSO4. Cu(OH)2 L Cu(NH3)4(OH)2 M Cu(NH3)4SO4 N Cu 8| B_vB‡bi mv‡_ nvB‡Wªv‡Rb Av‡qvWvB‡Wi

wewµqvq †Kvb †hŠMwU Drcbœ n‡e? K CH2I-CH2I L CH3-CHI2 M CH3CH2I N †KvbwUB bq 9| †Kvb avZzwU Kve©b weRviY c×wZ‡Z wb®‹vkb

Kiv hvq bv ? K `¯�v L †jŠn M †jW N A¨vjywgwbqvg 10| †KvbwU A¨v‡iv‡gwUK †hŠM ? K C6H10 L C6H11OH M C6H5N N C6H14 11| †mvwWqv‡gi j¨vwUb bvg †KvbwU ? K Aurum L Ferrum M Cuprum N Natrium 12| NaCl Gi Zwor we‡k−l‡Y †KvbwU K¨v‡_vW

wn‡m‡e e¨envi Kiv myweavRbK ? K C L Fe M Hg N Cu 13| NTP †Z 10 MÖvg nvB‡Wªv‡R‡bi AvqZb KZ ? K 22.4 wjUvi L 122 wjUvi M 112 wjUvi N 224 wjUvi 14| c`v‡_©i Mjbv¼, ùzUbv¼ Ges NbZ¡ wK ? K †fŠZ ag© L ivmvqwbK ag© M †fŠZ I ivmvqwbK ag© N

†KvbwUB bq 15| †KvbwU mZ¨? K 1 MÖvg cigvYy †gŠ‡j cigvYyi msL¨v=

6.023×102 3 wU

L meyR wfwUªq‡j †jŠ‡ni †hvRbx = 2

M 2311 Na+ †Z B‡jKUª‡bvi msL¨v = 10

N me¸‡jv mZ¨ 16| CH3 CH2 CH2C≡CH Gi bvg wK ? K 1-†cwÈb L 1-†cÈvBb M 2-†cwÈb N 2-†cÈvBb 17| WvBbvB‡Uªv‡Rb UªvB A·vB‡W bvB‡Uªv‡R‡bi

myß †hvR¨Zv KZ ? K 1 L 2 M 3 N 4 18| †gvgevwZ R¡j‡Z _vK‡j †Kvb ai‡bi cwieZ©b nq ? K †fŠZ cwieZ©b L ivmvqwbK cwieZ©b M †fŠZ I ivmvqwbK Dfq cwieZ©b N †Kvb cwieZ©b nq bv 19| Pz‡bi cvwb‡Z AwZwi³ Kve©b WvBA·vBW

Pvjbv Ki‡j †Kvb ai‡bi †hŠMwU Drcbœ n‡e? K A`ªeYxq mv`v CaCO3

L `ªeYxq CaCO3 M †Nvjv‡U mv`v Ca(HCO3)2

N eY©nxb ªeYxq Ca(HCO3)2 20| †Kvb wewµqvwU mwVK ? K Fe + H2O=Fe3O4 + H2

L 3Fe + 4H2O=Fe3O4 + H2 M 3Fe + 4H2O=Fe3O4 + 4H2 N 2Fe + 3H2O=Fe2O3 + 3H2 21| yBwU AvB‡mv‡Uv‡ci g‡a¨ †KvbwU mgvb bq ? K †cÖvUb msL¨v L B‡jKUªb msL¨v M wbDUªb msL¨v N †KvbwUB bq 22| ‹¨vwÊqv‡gi cvigvYweK web¨vm †KvbwU ? K 2, 8, 8, 3 L 2, 8, 9, 2 M 2, 8, 10, 1 N 2, 8, 11 23| †Kvb AYyi AvK…wZ ˆiwLK ? K A¨v‡gvwbqv L cvwb M wg‡_b N Kve©b WvBA·vBW 24| Re Gwm‡Wi Kvh©Kix g�j‡Ki MvVwbK

ms‡KZ †KvbwU ? K −− COOH

L M N

25| †Kvb avZzi jeY wkLv cix¶vq B‡Ui gZ jvj e‡Y©i wkLv cÖ k©b K‡i?

K †mvwWqvg L cUvwmqvg M Kcvi N K¨vjwmqvg 26| dmdiv‡mi AvYweK ms‡KZ †KvbwU ? K P L P4 M P2 N P8 27| Av ª© we‡k−lY wewµqv †KvbwU ? K H2+I2 2HI L AlCl3 + 3H2O Al(OH)3 + 3HCl M HCl + H2O H3O+ + Cl-

N NaCl + H2O Na+ + Cl− + H+ + −OH 28| †KvbwU weRviK c`v_©? K I‡Rvb L Kve©b WvB A·vBW M MÖvdvBU N †eªvwgb cvwb 29| †mvwWqvg Kve©‡b‡Ui GK‡gvj c`v‡_©i

cwigvY KZ ? K 53 MÖvg L 40 MÖvg M 106 MÖvg N 6.023×1023 MÖvg 30| 17 MÖvg A¨v‡gvwbqv‡Z AYyi msL¨v KZ ? K 3.346×1022 wUL 6.023×1024wU M 6.023×1023wU N 17wU 31| ivmvqwbK c`v_©mg�‡ni ivRv †KvbwU ? K HNO3 L H3PH4 M H2SO4 N H2CO3 32| GK MÖvg Zzj¨ bvBwUªK Gwm‡Wi cwigvY KZ ? K 36.5 MÖvg L 49 MÖvg M 98 MÖvg N 63 MÖvg 33| HCl (aq) Ges KOH (aq) Gi cÖkgb Zvc KZ ? K -58.78 wKtRyj L -57.3 wKt Ryj M 58.78 wKt Ryj N 57.3 wKt Ryj 34| AvB‡mv‡c‡È‡bi AvYweK ms‡KZ †KvbwU ? K CH3 CH2 CH2 CH2 CH3

L CH3 − CH − CH − CH3

M CH3 CH3 N †KvbwUB bq| 35| †Kvb †hŠMwUi ev®•NbZ¡ Ò23Ó? K N2O5 L SO2 M CO2 N NO2

DËigvjv 1 L 2 M 3 N 4 L 5 N 6 K 7 M 8 N 9 N 10 M 11 N 12 M 13 N 14 K 15 N 16 L 17 L 18 M

19 N 20 N 21 M 22 K 23 N 24 L 25 N 26 L 27 L 28 M 29 M 30 M 31 M 32 N 33 L 34 L 35 N

O || ⎯ C ⎯ O ⎯ H O || C ⎯ O ⎯ H O || ⎯ C ⎯ O ⎯ R

CH3 C CH3

CH3

†evW c© ix¶vi cªkœ I DËi : ˆbe©¨w³K · M dm‡dU N bvB‡UªU 6. ... 13. ‡nevi-em...

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