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    Question1.

    [A] II

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    Question7.'x'gmofahydrocarbonC2H4isburnedinexcessofO2toproduceCO2andH2Oaccordingtofollowingreaction:

    Thegasproducediscompletelyreactedwith2L,2MNaOHsolution.Thevalueof'x'is:[A] 7[B] 14[C] 28[D] 56

    Question8.Therearetwoisotopesofanelementwithaverageatomicmassz.Theheavieronehasatomicmass'z+1'andlighteronehas'z2',thenabundanceoflighteroneis:[A] 66.6%[B] 96.7%[C] 6.67%[D] 33.3%

    Question9.AccordingtothementionedreactionswithyieldshowmuchCaC2isrequiredtoobtain2molofCO2?

    [A] 2mol[B] 4mol[C] 8mol[D] Noneofthese

    Question10.10Lof0.1MH2O2solutionismixedwith10LKMnO4(0.02M).VolumestrengthofresultingH2O2solutionis:

    [A] 0.28vol[B] 0.56vol[C] 1.12vol[D] 2.24vol

    Question11.Sodiumhypochlorite(NaOCl)isagoodoxidizingagentinalkalinemedium.Whatvolumeofa0.15MalkalinesolutionofNaOClwouldberequiredtooxidizecompletelya20mL0.2MNaCrO2solutionaccordingtothereaction:

    [A] 80ml[B] 40mL[C] 20mL[D] 10mL

    Question12.Simplestempiricalformulaofacompoundcontaining60%ofelementA(atomicmass10)and40%ofelementB(atomicmass20)is:

    [A]

    [B]

    [C]

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    [D] Noneofthese

    Question13.Whatvolumeofhydrogen(inlitres)willbeliberatedatNTPbyreactionofZnwith20mlofdiluteH2SO4solutionofspecificgravityof2.45andcontaining40%ofH2SO4byweight?

    [A] 4.48[B] 44.8[C] 8.96[D] 2.24

    Question14.Whichofthefollowingrepresentredoxreactions?

    I.

    II.

    III.

    IV.

    Thecorrectoptionis:[A] I,II[B] I,III[C] III,IV[D] II,III,IV

    Question15.100mLof0.1MBaCl2solutionismixedwith100mLof0.3MNa2CO3solution.Afterfilteringofftheprecipitate,theresidualsolutionistitratedagainst0.5MHCl.Thevolumeofacidconsumedattheendpointis:[A] 40mL[B] 80mL[C] 160mL[D] Noneofthese

    Question16.AbottleofH2O2islabeledas"15vol"H2O2.112mLofthissolutionofH2O2istitratedagainst0.05MacidifiedsolutionofKMnO4.ThevolumeofKMnO4requiredis:

    [A] 0.6L[B] 1.2L[C] 2.4L[D] 12.0L

    Question17.200mLof0.2MH3PO4wastitratedwith0.1MCa(OH)2solution.Thetitrationwasdiscontinuedafteradding100mLofCa(OH)2solution.TheremainingtitrationwascompletedbyaddingM/6Al(OH)3solution.ThevolumeofAl(OH)3requiredformcompetingthetitrationis:[A] 200mL[B] 300mL[C] 120mL[D] 60mL

    Question18.

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    'p'molesofasalt, isdissolvedinwatertopreparea200mLofansolution.Itrequired500mLofa solutionof

    inpresenceofexcessof .Thevalueof'p'is:

    [A] 0.5[B] 0.25[C] 0.33[D] Noneofthese

    Question19.Onemolofpotassiumchlorate(KClO3)isthermallydecomposedandexcessofaluminiumisburntinthegaseousproduct.Howmanymolofaluminiumoxideareformed?[A] 1mol[B] 1.5mol[C] 2mol[D] 3mol

    Question20.Whichofthefollowingcompoundcanactasoxidizingaswellasreducingagent?

    I.H2O2II.I2III.F2IV.HNO3

    Thecorrectchoiceis:[A] I,II,III[B] I,II[C] I,II,III,IV[D] Ionly

    Question21.ExcessofKIreactswithCuSO4solutionandthenNa2S2O3solutionisaddedtoit.

    I.Na2S2O3isoxidisedII.CuI2isformed

    III.Cu2I2isformedIV.EvolvedI2reduced

    Thecorrectchoiceis:[A] I,II[B] II,III[C] I,III,IV[D] I,II,III

    Question22.500mlof0.4MH2SO4and1500mlof0.2MNaOHaremixed.Theconcentrationoftheionsinfinalsolution

    [A]

    [B]

    [C]

    [D]

    Question23.Considerthefollowingtwocases:

    Case1:V1mlofNaClsolution(havingconcentrationsM1,N1andS1)isdilutedbyadditionofsomewatertomakeaV2mlNaClsolution(havingconcentrationsM2,N2andS2)

    Case2:V3mlofNaOHsolution(havingconcentrationsM3,N3andS3)istitratedwithV4mlofH2SO4solution(havingconcentrationsM4,N4andS4)forcompleteneutralisation.

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    (whereMisMolarity,NisNormality,SisStrengthandVisvolumeofsolution)

    Whichofthefollowingstatementsarecorrect:

    Thecorrectchoiceis:[A] I,II[B] III,IV[C] I,IV[D] II,III

    Question24.100mlof0.1MNaAl(OH)2CO3solutioniscompletelyneutralisedbyastandardsolutionofM/8H2SO4.ThevolumeofH2SO4requiredis:[A] 80mL[B] 320mL[C] 100mL[D] 160mL

    Question25.Asolutioncontaining200mLof0.5MBaCl2and400mLof0.5MH2SO4isdilutedto1000mL.Thevolumeof0.1MBa(OH)2requiredtoneutralise100mLofabove(diluted)solutionis:[A] 200mL[B] 2000mL[C] 1000mL[D] 100mL

    Question26.Theresultantoftwovectors and isperpendiculartothevector anditsmagnitudeisequaltohalfofthemagnitudeof

    vector .

    Theanglebetween and is:

    [A] 120o[B] 150o[C] 135o[D] Noneofthese

    Question27.

    Whatistheanglebetween ,if aretheadjacentsidesofaparallelogramdrawnfromacommonpointandtheareaoftheparallelogramisAB/2?

    [A] 150[B] 300[C] 450[D] 600

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    Question28.

    If and ,thevectorhavingthesamemagnitudeasthatof andparallelto is:

    [A]

    [B]

    [C]

    [D]

    Question29.

    Twovectors areatanangleof600witheachother.Theirresultantmakesanangleof450with .If units,

    then is:

    [A]

    [B]

    [C]

    [D]

    Question30.Ahorizontalforceof25Nisnecessarytojustholdablockstationaryagainstawall.Thecoefficientoffrictionbetweentheblockandwallis0.4.Theweightofblockis:

    [A] 2.5N[B] 20N[C] 10N[D] 5N

    Question31.

    Theresultant of and isperpendicularto .Also, .Theanglebetween is

    [A] rad

    [B] rad

    [C] rad

    [D] rad

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    Question32.Amancanrowaboat4km/hrinstillwater.Ifheiscrossingariverwherethecurrentis2km/hr,thenanswerthefollowings

    Inwhatdirectionshouldhisboatbeheadedifhewantstoreachapointontheotherbank,directlyoppositetostartingpoint?

    [A] 120ofromdirectionofdownstream[B] 120ofromdirectionofupstream[C] 60ofromdirectionofdownstream[D] Perpendiculartotheflowofriver

    Question33.Amancanrowaboat4km/hrinstillwater.Ifheiscrossingariverwherethecurrentis2km/hr,thenanswerthefollowings

    Ifwidthoftheriveris4kmhowlongwillittakehimtocrosstheriver,withtheconditioninabovequestion?

    [A] hr

    [B] hr

    [C] hr

    [D] hr

    Question34.Amancanrowaboat4km/hrinstillwater.Ifheiscrossingariverwherethecurrentis2km/hr,thenanswerthefollowings

    Inwhatdirectionshouldheheadtheboatifhewantstocrossriverinshortesttime?

    [A] 120ofromdirectionofdownstream[B] 120ofromdirectionofupstream[C] 60ofromdirectionofdownstream[D] Perpendiculartotheflowofriver

    Question35.Acarismovingtowardssouthwithaspeedof20m/s.Amotorcyclistismovingtowardseastwithaspeedof15m/s.Atacertaininstant,themotorcyclistisduesouthofthecarandisatadistanceof50mfromthecar.

    Theshortestdistancebetweenthemotorcyclistandthecaris:[A] 10m[B] 20m[C] 30m[D] 40m

    Question36.Acarismovingtowardssouthwithaspeedof20m/s.Amotorcyclistismovingtowardseastwithaspeedof15m/s.Atacertaininstant,themotorcyclistisduesouthofthecarandisatadistanceof50mfromthecar.

    Thetimeafterwhichtheyareclosesttoeachother:[A] 1/3s[B] 8/3s[C] 1/5s

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    [D] 8/5s

    Question37.Abodycoversonethirdofthedistancewithavelocity ,thesecondonethirdofthedistancewithavelocity andtheremaining

    distancewithavelocity inthesamedirection.Theaveragevelocityis:

    [A]

    [B]

    [C]

    [D]

    Question38.Infigure,thepulley isfixedandthepulley ismovable.If whatistheangle ?Thepulleysarefrictionless

    [A] 300[B] 600[C] 900[D] 1200

    Question39.Thepositionxofaparticlevarieswithtime(t)as Theaccelerationattimetoftheparticlewillbeequaltozero,wheretisequalto

    [A]

    [B]

    [C]

    [D] zero

    Question40.Ifxdenotesdisplacementintimetand thentheaccelerationis:

    [A][B][C][D]

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    Question41.Thevelocitytimerelationofanelectronstartingfromrestisgivenby where m/s2.Thedistancetraversedinfirst3sis:[A] 9m[B] 16m[C] 27m[D] 36m

    Question42.Aballisdroppedintoawellinwhichthewaterlevelisatadepthhbelowthetop.Ifthespeedofsoundbec,thenthetimeafterwhichthesplashisheardafterdroppingtheballwillbegivenby:

    [A]

    [B]

    [C]

    [D]

    Question43.Thevelocitytimegraphofabodyisshowninfigure.TheratioofaverageaccelerationduringtheintervalsOAandABis

    [A] 1[B] 1/2[C] 1/3[D] 3

    Question44.Fromthevtgraph,the:

    [A] Speedatt=1sis1.2m/s[B] Accelerationis2m/s2

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    [C] Averagespeedduring1stsecondis1.5m/s[D] Speedoftheparticlecanbezero

    Question45.Theaccelerationtimegraphofaparticlemovingalongastrai