Phi_kim Vũ Khắc Ngọc LTĐH

7/26/2019 Phi_kim V Khc Ngc LTH

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Ti liu hc tp chia s Phi kim

Hocmai.vnNgi trng chung ca hc tr Vit Tng i t vn: 1900 58-58-12 - Trang | 1 -

Dng 1:L thuyt v phi kim v hp chtCu 1:Phn ng gia cp cht no di y khngxy ra?A.CO2+ dung dch Na2SiO3 B.Si + dung dch NaOHC.Si + dung dch HCl D.SiO2+ Mg

Cu 2:Trong cc th nghim sau, th nghim no khngto ra NaHCO3?A. Sc CO2vo dung dch natriphenolat.B. Sc CO2vo dung dch bo ha cha NaCl v NH3.C.Sc CO2vo dung dch Na2CO3.D. Cho dung dch NaOH vo Ba(HCO3)2.

Cu 3: Sc kh CO2 vo cc dung dch ring bit cha cc cht: Na[Al(OH)4], NaOH d, Na2CO3,NaClO, Na2SiO3, CaOCl2, Ca(HCO3)2, CaCl2. S phn ng ho hc xy ra l

A. 7 B. 6 C. 5 D. 8Cu 4:Hn hp no sau y khngtan ht trong nc nhng tan hon ton trong nc c ha tan CO2?

A. CaSO4, Ca(OH)2, MgCO3 B. Al2O3, CaCO3, CaO

C. MgCO3, BaCO3, CaO D. MgCO3, CaCO3, Al(OH)3

Cu 5:Oxit Y ca mt nguyn t X ng vi ha tr II c thnh phn % theo khi lng ca X l 42,86%.Trong cc mnh sau:

(I). Y tan nhiu trong nc.(II). Lin kt X vi O trong Y l lin kt ba.(III). Y c th iu ch trc tip t phn ng gia X v hi nc nng.(IV). T axit fomic c th iu ch c Y.

(V). T Y, bng mt phn ng trc tip c th iu ch c axit etanoic.(VI). Y l kh khng mu, khng mi, khng v, c tc dng iu ha khng kh.S mnh ng khi ni v X v Y l

A.3 B. 4 C.5 D.6

Cu 6:Silic ioxit phn ng vi tt c cc cht (iu kin thch hp) trong dy no di y? A.NaOH, C, HF, Na2CO3, Mg B. C, HF, MgCO3,NaOH

C. C, HCl, Na2CO3, Mg D. MgO, C, HF, Na2CO3, NaOH

Cu 7: Trong phng th nghim, kh CO2c iu ch t CaCO3v dung dch HCl thng b ln khhiro clorua v hi nc. thu c CO2gn nh tinh khit ngi ta dn hn hp kh ln lt qua hai

bnh ng cc dung dch no trong cc dung dch di yA.NaOH, H2SO4c. B.NaHCO3, H2SO4c.

C.Na2CO3, NaCl. D.H2SO4c, Na2CO3.Cu 8:Cacbon phn ng vi tt c cc cht trong dy no sau y?

A. Fe2O3, Al2O3, CO2,HNO3 B. CO, Al2O3, HNO3(c), H2SO4(c)C. Fe2O3, CO2, H2, HNO3(c) D. CO, Al2O3, K2O, Ca

Cu 9:Cho kh NH3d i t t vo dung dch X (cha hn hp CuCl2, FeCl3, AlCl3) thu c kt ta Y.Nung kt ta Y ta c cht rn Z, ri cho lung kh NH3d i t t qua Z nung nng thu c cht rnR. Thnh phn ca cht rn R gm

A.Cu, Al, Fe B.Al2O3v Fe C.Al2O3; Cu v Fe D.Al2O3v Fe2O3

Cu 10:Ln lt cho 1 mol mi cht MgCO3, FeCO3, FeO, KHCO3tc dng ht vi dung dch HNO3c, nng, d th cht cho s mol kh thot ra nhiu nht l

A.FeCO3 B.FeO C.MgCO3 D.KHCO3

Cu 11:Cho hp cht X vo nc thu c kh Y. t chy Y trong oxi d, nhit cao (nhit tchy


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A. FeO, NO2, O2. B. Fe2O3, NO2.

C.Fe, NO2, O2. D.Fe2O3, NO2, O2.

Cu 13:Nhit phn nhng mui no sau y thu c cht rn u l oxit kim loi ?A. Cu(NO3)2, KClO, KMnO4 B. MgSO4, KNO3, CaCO3

C. BaCO3, CuCO3, AgNO3 D. CuSO4, Fe(NO3)2, (NH4)2Cr2O7

Cu 14:Khi nhit phn, dy mui nitrat no u cho sn phm l oxit kim loi, kh nit ioxit v kh oxi?

A.Cu(NO3)2, Fe(NO3)2, Mg(NO3)2 B.Cu(NO3)2, LiNO3, KNO3C.Zn(NO3)2, KNO3, Pb(NO3)2 D.Hg(NO3)2, AgNO3, KNO3

Cu 15:Nhit phn hon ton hn hp NH4NO3, Cu(NO3)2, AgNO3, Fe(NO3)2th cht rn thu c sauphn ng gm

A.CuO, Fe2O3, Ag. B.NH4NO2, Cu, Ag, FeO.

C.CuO, Fe2O3, Ag2O. D. CuO, FeO, Ag.

Cu 16:Trong phng th nghim, axit photphoric c iu ch bng phn ngA.3P + 5HNO3+ 2H2O 3H3PO4+ 5NO

B.Ca3(PO4)2+ 3H2SO42H3PO4+ 3CaSO4

C.4P + 5O2P2O5v P2O5+ 3H2O 2H3PO4

D.2P + 5Cl22PCl5 v PCl5+ 4H2O H3PO4+ 5HCl

Cu 17:Mui X c th c dng lm phn m v c cc phn ng sau:

o

2

t

2

X + NaOH Y + Z + H O.

X T + H O.

Cng thc ca X lA.NH4NO3. B.NH4Cl. C. (NH4)2HPO4 D.NH4HCO3.

Cu 18:Cho hp cht X tc dng vi NaOH to ra kh Y lm xanh qu tm m. Mt khc, cht X tcdng vi axit HCl to ra kh Z va lm vn c nc vi trong, va lm mt mu dung dch brom. Cht Xkhng tc dng vi dung dch BaCl2. Vy cht X c th l

A.NH4HSO3 B.NH4HCO3 C. (NH4)2CO3 D. (NH4)2SO3

Cu 19:Cho s chuyn ha sau:o o

2 2+ SiO + C (1200 C) + O d- + Ca (t ) + HCl

3 4 2Ca (PO ) X Y Z T

X, Y, X, T ln lt lA. CaC2, C2H2, C2H4, CO2. B. PH3, Ca3P2, CaCl2, Cl2.

C. CaSiO3, CaC2, C2H2, CO2. D. P, Ca3P2, PH3, P2O5.

Cu 20:Cho s phn ng: H2PO4-+ X HPO4

2-+ Y. Hai cht X v Y ln lt lA. H+v OH-. B. H+v H2O. C. OH

-v H2O. D. H2O v OH-.

Cu 21:Cho s chuyn hoa : 3 4+ H PO+ KOH + KOH2 5

P O X Y Z .

Cc cht X, Y, Z (l 3 cht khc nhau) ln lt laA. K3PO4, K2HPO4, KH2PO4 B. K3PO4, KH2PO4, K2HPO4

C. KH2PO4, K3PO4, K2HPO4 D. KH2PO4, K2HPO4, K3PO4Cu 22:Loi phn ha hc no sau y khi bn cho t lm tng chua ca t?

A. Phn Kali (KCl) B. m 2 l (NH4NO3)C. Phn vi sinh D. Ure: (NH2)2CO

Cu 23:Trong cc loi phn m sau loi no khi bn t lm thay i mi trng ca t nht?A.NH4NO3 B.NH4Cl C.(NH4)2SO4 D.Ure

Cu 24:Khi bn m ur cho cy ngi ta khng bn cng viA.NH4NO3 B.phn kali C.phn ln D. vi

Cu 25:Pht biu no di y l ng?A. Thnh phn chnh ca supephotphat n l Ca(H2PO4)2.B. Amophot l hn hp gm (NH4)2HPO4v NH4H2PO4.C. Thnh phn chnh ca supephotphat kp l Ca(H2PO4)2v CaSO4.D.Nitrophotka l hn hp gm KNO3v NH4H2PO4.

Cu 26:Hy la chn cc ho cht cn thit trong phng th nghim iu ch kh sunfur?A.Na2SO3v dung dch H2SO4c B. CaSO3v dung dch H2SO4c


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C. CaSO4v dung dch H2SO4long D. CaSO4v dung dch H2SO4cCu 27: Khi nhit phn hon ton 100 gam mi cht sau: KClO3 (xc tc MnO2), KMnO4, KNO3 vAgNO3. Cht to ra lng O2t nht l

A. KNO3 B. KMnO4 C. AgNO3 D. KClO3

Cu 28:Cho cc nhn xt sau:1) Sc Ozon vo dung dch KI s thu c dung dch c kh nng lm h tinh bt ho

xanh. 2) Hiro peoxit v hiro sunfua c th lm mt mu dung dch thuc tm trong mi trngH2SO4long.

3) Sc hiro sunfua vo dung dch FeCl3s thy xut hin vn c mu vng.4) Dung dch H2S lu trong khng kh s c vn c mu vng.5) Hiro peoxit l cht kh mnh v khng c tnh oxi ho

S nhn xt nglA. 1. B. 2. C. 4. D. 3.

Cu 28:Cho cc phn ng sau:(1) F2+ H2O (6) in phn dung dch CuCl2(2) Ag + O3 (7) Nhit phn KClO3(3) KI + H2O+ O3 (8) in phn dung dch AgNO3(4) Nhit phn Cu(NO3)2 (9) Nhit phn H2O2(5) in phn dung dch H2SO4

S phn ng m sn phm to ra c O2lA. 5. B. 7 C. 6. D. 8

Cu 29:Cho cc cht sau y phn ng vi nhau:(1) SO2+ H2S (2) H2S + Br2

(3) H2S + Cl2 + H2O (4) H2S + K2Cr2O7+ H2SO4 (long)

(5) SO2+ Br2+ H2O (6) H2S + O2 (thiu) Nhng phn ng sinh ra n cht S l

A. (2), (3), (4), (5). B. (1), (2), (4), (6).C. (1), (3), (4), (6). D. (1), (2), (3), (4), (5), (6).

Cu 30: Cho s phn ng sau: H2S NaOH

X NaOH

Y 23 )(NOCu Z.

X, Y, Z l cc hp cht cha lu hunh. X, Y, Z lA.Na2S, NaHS, CuS2. B.Na2S, NaHS, CuS.

C.NaHS, Na2S, CuS. D.NaHS, Na2S, CuS2.

Cu 31: Cho s phn ng sau: S X OH2 H2S. X lA.Na2S. B.CaS. C.Na2S2O3. D.Al2S3.

Cu 32:Cho s phn ng sau:o

2+ O , t+ dd NaOHS (l-u hunh) A B C A S

Cc cht A, B, C c th ln lt lA.H2S, SO2v Na2S B.SO2, (SO3v H2SO4C.FeS, SO2v Na2SO3 D.H2S, (NH4)2S v Na2S

Cu 33:Cho X l mt mui ca Fe. X ho tan trong HCl c kh A bay ln. t chy X trong O 2ckh B bay ln. Bit A v B u lm mt mu dung dch nc Brom. X l

A. FeS B. FeCO3 C. FeSO4 D. Fe3C

Cu 34:C th dng H2SO4c lm kh c cc khA. O2, H2, SO3 B. O2, H2, NO2, H2S, Cl2C.N2, H2, SO2, CO2 D. Cl2, SO2, CO2, NO2, H2S

Cu 35:Nung bt Al vi bt S trong bnh kn (khng c khng kh) thu c hn hp cht rn X. Cho hnhp X vo dung dch HCl d sau phn ng hon ton thu c hn hp kh Y v mt phn cht rn khngtan. Khng nh khng ng l

A.Trong hn hp X c 3 cht ha hcB. Cho hn hp X vo nc c kh thot raC. Hn hp X c kh nng tan ht trong dung dch NaOH d


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D. Hn hp X c kh nng tan ht trongdung dch HNO3c nng dCu 36:H2O2th hin tnh kh khi tc dng vi cht no sau y?A. Ag2O B. PbS C. KI D. KNO2

Cu 38:iu ch mt lng nh kh O2trong phng th nghim, ngi ta thng nung nng cc hpcht giu oxi nh: thuc tm,kali clorat, hiro peoxit, natri nitrat. Nu cc cht trn c s mol bng nhauth lng O2thu c nhiu nht t

A. natri nitrat B. kali clorat C. thuc tm D. hiro peoxitCu 39:Cht c dng ty trng giy v bt giy trong cng nghip lA. CO2. B. SO2. C.N2O. D.NO2.

Cu 40:Mt cc h ming ng dung dch H2S lu ngoi khng kh, hin tng xy ra lA. C kt ta mu trng B. C kh mi xc thot raC. Dung dch thu c c mu vng D. C kt ta mu vng

Cu 41:Cho kh H2S tc dng vi cc cht: dung dch NaOH, kh clo, nc clo, dung dch KMnO4/H+,

kh oxi d un nng, dung dch FeCl3, dung dch ZnCl2. S trng hp xy ra phn ng v s trng hptrong lu hunh b oxi ha ln S+6l

A. 7 - 2 B. 6 - 3 C. 6 -1 D. 6 -2

Cu 42:Pht biu no sau y khngchnh xc?

A. Tnh axit tng dn theo dy HF, HCl, HBr, HI.B. Tnh oxi ho gim dn theo dy HClO, HClO2, HClO3, HClO4.C.Nc clo, lu hunh ioxit, clorua vi u c tnh ty mu.D. Flo c tnh oxi ho rt mnh, c th oxi ho tt c cc phi kim.

Cu 43:Pht biu no di y l ng?A. Cc halogen F2, Cl2, Br2, I2theo chiu t tri sang phi tnh oxi ha gim dn, ng thi tnh kh

tng dn.B. Cc hp cht HF, HCl, HBr, HI theo chiu t tri sang phi tnh axit gim dn, ng thi tnh kh

tng dn.C. Cc hp cht HClO, HClO2, HClO3, HClO4theo chiu t tri sang phi tnh axit tng dn, ng thi

tnh oxi ha tng dn.D. iu ch HF, HCl, HBr, HI ngi ta cho mui ca cc halogen ny tc dng vi H2SO4c,

nng.

Cu 44:Kh Cl2 tc dng c vi: (1) kh H2S; (2) dung dch FeCl2; (3) nc Brom; (4) dung dchFeCl3; (5) dung dch KOH.

A. 1, 2, 4, 5 B. 1, 2, 3, 4, 5 C. 1, 2, 5 D. 1, 2, 3, 5

Cu 45:Khi sc kh clo vo nc th thu c nc clo. Nc clo l hn hp gm cc chtA.Cl2v H2O B.Cl2, HCl, H2O v HClO

C.HCl, HClO3v H2O D.HCl v HClO.

Cu 46:Mnh no di y l ng?A. in phn dung dch NaF c mng ngn thu c kh flo.

B. Cho hn hp NaF, NaCl vo dung dch AgNO3th thu c 2 kt ta.C. Hn hp CaF2+ H2SO4ho tan c thu tinh.D. HF c tnh axit mnh hn HCl.

Cu 47:Cho cc mnh sau:(1) AgF d tan trong nc(2) Tnh kh HF < HCl < HBr < HI(3) Tnh axit HClO < HClO2< HClO3< HClO4

(4) F2c th oxi ha ion Cl-trong dung dch NaCl.

Cc mnh ng lA. (1), (2) B. (2), (3), (4) C. (1), (2), (3), (4) D. (1), (2), (3)

Cu 48:HBr lun th hin tnh kh trong phn ng vi cc cht no di y?A.dung dch NaOH, O2, Mg B.O2, dung dch Cl2, dung dch KMnO4C.dung dch Cl2, CaO, FeO D.Al, dung dch KMnO4, Al(OH)3

Cu 49:Sc clo t t n d vo dung dch KBr th hin tng quan st c lA. Dung dch t khng mu chuyn sang mu vng sau li mt mu.


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B. Dung dch c mu nu.C. Khng c hin tng g.D. Dung dch c mu vng.

Cu 50:Phng th nghim b nhim lng nh kh Cl2. Phng php tt nht loi b kh c hi nyl

A. h l ng dung dch NH3c B. Phun dung dch KBr

C. Phun dung dch NaOH D. Phun dung dch Ca(OH)2.Cu 51:Cho HCl c, d tc dng vi cng s mol mi cht: MnO2, KMnO4, KClO3, KClO. Cht no cholng clo ln nht?

A.KMnO4 B.MnO2 C.KClO3 D.KClO

Cu 52:Trong qu trnh iu ch Cl2c ln HCl v hi nc. thu c kh Cl2tinh khit (lng Cl2bhao ht khng ng k) cn dn hn hp ln lt qua

A. CaO v P2O5 B. H2O d v H2SO4cC. dung dch NaOH v P2O5 D. dung dch NaCl bo ha v H2SO4c

Cu 53:Trong phng th nghim, hirohalogenua (HX) c iu ch bng phng php sunfat c phnng nh sau

NaX(rn)+ H2SO4(c, nng) NaHSO4(hoc Na2SO4) + HX (kh).

Phng php trn c th dng iu ch c hirohalogenua no sau y?A.HF v HCl. B.HBr v HI. C.HCl, HBr v HI. D.HF, HCl, HBr, HI.

Cu 54:Cho cc th nghim sau:(1). Thi O3vo dung dch KI + h tinh bt(2). Cho Br2long vo dung dch KI + h tinh bt(3). Cho dung dch FeCl3vo dung dch KI + h tinh bt(4). Cho I2vo dung dch h tinh bt(5). Thi O2vo dung dch KI + h tinh bt.

S th nghim lm dung dch xut hin mu xanh lA. 5 B. 2 C. 3 D. 4

Cu 55:Dng mui it hng ngy c tc dng phng nga bnh bu c. Thnh phn ca mui it lA. I2+ NaCl B.NaCl+NaI

C.NaCl + KI + KIO3 D.NaI3+ NaCl

Cu 56:Phn ng no sau y khngthu c HBr khi kt thc phn ng?A. PBr3+ H2O B.NaBr (rn) + H2SO4(c, nng) C. SO2+ Br2+ H2O D. Br2+ H2O

Cu 57:Pht biu no sau y l ng?A. C th dng cc chai l thy tinh ng dung dch HFB. Bn knh nguyn t ca clo ln hn bn knh nguyn t ca brom.C. Tnh axit ca HF mnh hn tnh axit ca HCl.D. Tnh kh ca ion Br-ln hn tnh kh ca ion Cl-.

Cu 58:Cho cc mnh di y:a) Cc halogen (F, Cl, Br, I) c s oxi ha t 1 n +7.

b) Flo l cht ch c tnh oxi ha.c) F2y c Cl2ra khi dung dch mui NaCl.d) Tnh axit ca cc hp cht vi hiro ca cc halogen tng theo th t: HF, HCl, HBr, HI.Smnh ng lA.4. B.2. C. 3. D.1.

Cu 59:Cho hn hp A gm 2 mui NaX vNaY (X v Y l 2 halogen k tip nhau). kt ta honton 2,2 gam hn hp A cn 150 ml dung dch AgNO30,2M. Bit c phn ng: X2+ KYO3 Y2+KXO3. X v Y l

A.X l Cl, Y l Br B.X l Br, Y l ClC.X l Br, Y l I D.X l I, Y l Br.

Cu 60:Dung dch Br2mu nu , chia lm 2 phn. Dn kh X khng mu qua phn 1 thy mt mu.Kh Y khng mu qua phn 2, thy dung dch sm mu hn. X v Y l


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A. SO2v HI. B. HI v CO2. C. H2S v SO2. D. SO2v H2S.

Cu 61:Ngun khng kh b nhim bi kh Cl2. Dy cc ha cht no sau y c chn dng x lngun khng kh nhim ni trn?

A. dung dch CaCl2, phn chua. B. Kh O3, dung dch Ca(OH)2C. dung dch Ca(OH)2, kh NH3 D. CaCO3, dung dch NaOH.

Cu 62:Cho ccphn ng sau:

(1) 2KClO3o

2MnO , t

2KCl + 3O2 (2) 4KClO3ot

KCl + 3KClO4(3) 3Cl2+ 6KOH

ot

5KCl + KClO3+ 3H2O (4) 2HCHOo

2Ca(OH) , t HO-CH2-CH=O

(5) NH4NO2ot

N2+ 2H2O

Trong cc phn ng trn, s phn ng thuc loi phn ng t oxi ha- kh lA. 3 B. 2 C. 4 D. 5

Cu 63:Tnh cht axit ca dy cc hiroxit: H2SiO3, H2SO4, HClO4bin i nh sauA.Tng. B.Gim. C.Khng thay i. D.Va gim va tng.

Cu 64:Khi trn cc cht kh: H2v O2 (1), NO v O2 (2), CO v O2 (3) v NH3vi HCl (4) th cctrng hp c th tch gim ngay nhit thng so vi tng th tch ca tng kh l

A.(3) v (4) B.(1) v (2) C.(1), (2) v (4) D.(2) v (4)

Cu 65:Pht biu no sau y khngng?A. m chy magie c th c dp tt bng ct kh.B. Pht pho trng c cu trc mng tinh th phn tC. Trong phng th nghim, N2c iu ch bng cch un nng dung dch NH4NO2bo ho.D. CF2Cl2b cm s dng do khi thi ra kh quyn th ph hy tng ozon.

Cu 66:Cc cht kh sau: SO2, NO2, Cl2, N2O, H2S, CO2. Cc cht kh khi tc dng vi dung dch NaOH( nhit thng) lun to ra 2 mui l

A.NO2, SO2, CO2 B. CO2, Cl2, N2O

C. SO2, CO2, H2S D. Cl2, NO2

Cu 67:Cho cc phn ng:Na

2SO

3+ H

2SO

4 Kh X FeS + HCl Kh Y

NaNO2 bo ha + NH4Clbo ha ot Kh Z KMnO4

ot Kh T

Cc kh tc dng c vi nc clo lA. X, Y, Z, T B. X, Y, Z C. Y, Z D. X, Y

Cu 68:Cho cc phn ng sau:(1) MnO2+ HCl (c) X + ... (2) NH4NO2Y + ...(3) Na2SO3+ H2SO4(long)kh Z (4) Cu + HNO3(c) kh T + ...(5) Al4C3+ HCl kh Q + ...

Nhng kh tc dng c vi dung dch NaOH lA. X, Y, Z. B. X, Z, T. C. X, T, Q. D. Y, Z, Q

Cu 69:Cho cc phn ng:

(1) FeCO3+ H2SO4(c)0t

kh X + kh Y + (2) NaHCO3+ KHSO4 kh X +

(3) Cu + HNO3 (c)0t

kh Z + (4) FeS + H2SO4long kh G +

(5) NH4NO20t

kh H +

(6) AgNO30t

kh Z+ kh I + Trong cc cht kh sinh ra cc phn ng trn, s cht kh tc dng vi dung dch NaOH l

A. 4. B. 5. C. 6. D. 7.

Cu 70:Cho cc s phn ng sau:Mg + HNO3cKh (A) + . CaOCl2+ HCl c Kh (B) + .Ba + H2O Kh (C) + . Ca3P2+ H2O Kh (D) + .

Cc kh (A), (B), (C), (D) ln lt l


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A.N2O, Cl2, H2, P2H4. B.NO2, Cl2, H2, PH3.

C.NO2, HCl, H2, P2H4. D.NO, Cl2, H2, PH3.

Cu 71:C 5 hn hp kh c nh s:1. CO2, SO2, N2, HCl. 2. Cl2, CO, H2S, O2. 3. HCl, CO, N2, Cl2.

4. H2, HBr, CO2, SO2. 5. O2, CO, N2, H2, NO. 6. F2, O2, N2, HF

C bao nhiu hn hp kh khngtn ti c iu kin thng?

A. 2 B. 5 C. 4 D. 3Cu 72:Dy cc cht no sau y tt c cc cht u d b nhit phnA.NaHCO3, MgCO3, BaSO4, (NH4)2CO3. B.NaHCO3, NH4HCO3, H2SiO3, NH4Cl.

C. K2CO3, Ca(HCO3)2, MgCO3, (NH4 )2CO3, D.NaHCO3, Na2CO3, CaCO3, NH4NO3.

Cu 73:Ta tin hnh cc th nghim:(1) MnO2tc dng vi dung dch HCl. (2) t qung sunfua.(3) Nhit phn mui Zn(NO3)2. (4) Nung hn hp: CH3COONa + NaOH/CaO.(5)Nhit phn KNO3.

S th nghim to ra sn phm kh gy nhim mi trng lA. 5 B. 3 C. 4 D. 2

Cu 74:Cho cc mnh :

(I). HI l cht c tnh kh, c th kh c H2SO4n H2S.(II). Nguyn tc iu ch Cl2l kh ion Cl

-bng cc cht nh KMnO4, MnO2, KClO3, (III). iu ch oxi c th tin hnh in phn cc dung dch axit, baz, mui nh H2SO4, HCl,

Na2SO4, BaCl2, (IV). Lu hunh t phng v n t l hai dng th hnh ca nhau.(V). HF va c tnh kh mnh, va c kh nng n mn thu tinh.(VI). nhit cao, N2c th ng vai tr l cht kh hoc cht oxi ha.(VII). Dung dch Na2SO3c th lm mt mu nc brom.

S mnh ng lA. 3 B. 4 C. 5 D. 6

Cu 75:Cho cc phn ng ha hc sau:

1) H2S + O2(thiu) X + H2O 2) NH3+ O2 otxt,

Y + H2O

3) PH3+ O2Z + H2O

Cc cht X, Y, Z ln lt lA.S, NO, H3PO4. B.SO2, N2, P2O5.

C.S, NO, P2O5. D.SO2, N2, H3PO4.

Cu 76: Pht biu no sau y khngng?A.in phn dung dch NaCl, khng c mng ngn iu chnc gia-ven.B.Phn bn phc hp l sn phm trn ln cc loi phn n theo tlkhc nhau.C.Axit HCl va c tnh oxi ha, va c tnh kh.

D.Khng thdp tt cc m chy Mg bng ct kh.Dng 2:Bi tp v phi kim v hp chtCu 1:Cho x mol kh Cl2vo bnh cha KOH long ngui v y mol kh Cl2vo bnh cha KOH cnng, sau phn ng s mol KCl thu c 2 th nghim bng nhau. T l gia x v y l

A. x : y = 5 : 3 B. x : y = 3 : 5 C. x : y = 3 : 1 D. x : y = 1 : 3

Cu 2:Cho 672 ml kh clo (ktc) i qua 200 ml dung dch KOH 100 oC. Sau khi phn ng xy rahon ton thu c dung dch X c pH = 13. Coi nh th tch dung dch khng thay i trong qu trnh

phn ng. Khi lng cht rn thu c khi c cn dung dch X lA.3,09 gam B.6,07 gam C.1,97 gam D.4,95 gam

Cu 3: clorua vi trong khng kh m mt thi gian th mt phn clorua vi b cacbonat ha (to raCaCO3) thu c hn hp rn X gm 3 cht. Cho hn hp X vo dung dch HCl c, d n phn ng

hon ton thu c hn hp 2 kh c t khi so vi H2 l 34,6. Phn trm khi lng clorua vi bcacbonat ha l

A. 20%. B. 25%. C. 12,5%. D. 6,67%.


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Cu 4:Cho 31,84 gam hn hp gm NaX v NaY (X, Y l hai halogen thuc hai chu k lin tip) volng d dung dch AgNO3th thu c 57,34 gam hn hp kt ta. Cng thc ca NaX v NaY ln ltl

A.NaF v NaCl. B.NaBr v NaI. C.NaCl v NaBr. D.NaCl v NaI.

Cu 5:Cho m gam hn hp NaBr, NaI phn ng ht vi dung dch H2SO4 c nng thu c hn hp khX k thng. iu kin thch hp, X phn ng va vi nhau to thnh 9,6 gam cht rn mu vng

v 1 cht lng khng lm i mu qu tm. Gi tr ca m bngA. 50,6 B. 240,0 C. 404,8 D. 260,6.Cu 6:Hn hp X gm NaBr v NaI. Cho hn hp X tan trong nc thu c dung dch A.Nu cho bromd vo dung dch A, sau phn nghon ton, c cn thy khi lng mui khan thu c gim 7,05 gam.

Nu sc kh clo d vo dung dch A, phn nghon ton, c cn dung dch thy khi lng mui khangim 22,625 gam. Thnh phn % khi lng ca mt cht trong hn hp X l

A. 47,8% B. 64,3% C. 35,9% D. 39,1%

Cu 7:Cho V lt Cl2tc dng vi dung dch NaOH va iu kin thng, c cn cn thn dung dchthu c m1gam mui khan. Cng ly V lt Cl2cho tc dng vi dung dch NaOH va , un nng 80C, c cn cn thn dung dch thu c m2gam mui. Th tch kh Cl2o cng iu kin. T l m1 :m2l

A. 1 : 2. B. 1 : 1,5. C. 1 : 1. D. 2 : 1.Cu 8:Hp th hon ton 6,72 lit Cl2(ktc) vo 250 ml dung dch FeI21M, sau khi cc phn ng xy rahon ton, c dung dch A. Bit th t v tnh oxi ha Cl 2> Fe

3+> I2> Fe2+. Thnh phn mui trong

dung dch A lA. FeCl3 B. FeCl3v FeI2 C. FeCl2 D. FeCl2v FeCl3

Cu 9:Ha tan 54,44 gam hn hp X gm PC l3v PBr3vo nc c dung dch Y. trungha honton dung dch Y cn 500 ml dung dch KOH 2,6M. % khi lng ca PCl3trong X l

A. 26,96% B. 12,125 C. 8,08% D. 30,31%

Cu 10:Thy phn hon ton 13,75 gam hp cht PCl3 thu c dung dch X gm hai axit. Trung hadung dch X cn th tch dung dch NaOH 0,1 M l

A.4 lit B.5 lt C.3 lt D.6 lt

Cu 11:Cho 15,8 gam KMnO4tc dng vi dung dch HCl c d c kh Cl2. Chia lng kh ny lm 2phn:

- Cho phn 1 tc dng vi Fe c 3,25 gam mui.- Cho phn 2 tc dng vi 500 ml dung dch NaOH 1,0 M c dung dch X.Gi s th tch dung dch khng i. Nng NaOH c trong dung dch X lA.0,04M. B.0,06M. C.0,12 M. D.0,25M

Cu 12:Nung 14,38 gam hn hp KClO3v KMnO4mt thi gian c hn hp cht rn A v 1,344 ltkh thot ra (ktc). Cho dung dch HCl c d vo A cho n khi cc phn ng kt thc, thy c 3,36 ltkh thot ra (ktc). Coi nh cc kh to thnh u thot ra ht khi dung dch. Thnh phn % khi lngca KMnO4trong hn hp ban u l

A.60% B.65,9% C.42,8% D.34,1%Cu 13:Cho 12,25 gam KClO3vo dung dch HCl c, kh Cl2thot ra cho tc dng vi ht vi kim loiM thu c 30,9 gam hn hp cht rn X. Cho X vo dung dch AgNO3d, thu c 107,7 gam kt ta.Vy kim loi M l

A.Zn B.Mg C.Fe D.Cu

Cu 14:Nung 316 gam KMnO4mt thi gian cn li 300 gam cht rn X. Cho dung dch HCl d tcdng hon ton vi 300 gam cht rn X thu c V lt kh Cl2( ktc). Gi tr ca V l

A. 8,96. B. 89,6. C. 11,2. D. 112.

Cu 15:Nhit phn 50,56 gam KMnO4sau mt thi gian thu c 46,72 gam cht rn. Cho ton b lngkh sinh ra phn ng ht vi hn hp X gm Mg, Fe thu c hn hp Y nng 13,04 gam. Ha tan honton hn hp Y trong dung dch H2SO4c, nng d thu c 1,344 lt SO2(ktc) (sn phm kh duynht). % khi lng Mg trong X l

A. 28,15% B. 52,17% C. 46,15% D. 39,13%

Cu 16:Chia 38,1 gam FeCl2thnh 2 phn, phn 2 c khi lng gp 3 ln phn 1. em phn 1 phn nght vi dung dch KMnO4d, trong mi trng H2SO4long, d, thu ly kh thot ra. em ton b kh


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ny phn ng ht vi phn 2, c cn dung dch sau phn ng thu c m gam cht rn. Gi tr ca m l? A. 29,640. B. 28,575. C. 24,375. D. 33,900.

Cu 17:Nhit phn 17,54 gam hn hp X gm KClO3v KMnO4, thu c O2v m gam cht rn gmK2MnO4, MnO2v KCl. Ton b lng O2tc dng ht vi cacbon nng , thu c 3,584 lt hn hpkh Y (ktc) c t khi so vi O2l 1. Thnh phn % theo khi lng ca KClO3trong X l

A. 62,76% B. 74,92% C. 72,06% D. 27,94%

Cu 18:Nung m gam hn hp X gm KClO3v KMnO4thu c cht rn Y v O2. Bit KClO3phn hyhon ton, cn KMnO4ch b phn hy mt phn. Trong Y c 0,894 gam KCl chim 8,132% theo khilng. Trn lng O2 trn vi khng kh theo t l 1 : 3 v th tch trong mt bnh kn ta thu c hnhp kh Z. Cho vo bnh 0,528 gam cacbon ri t chy ht cacbon, phn ng hon ton, thu c hnhp kh T gm 3 kh O2, N2, CO2, trong CO2chim 22,92% th tch. Gi tr ca m l

A. 12,59 B. 12,53 C. 12,70 D. 12,91

Cu 19:Nung m gam hn hp X gm KClO3v KMnO4thu c cht rn Y v O2. Bit KClO3phn hyhon ton, cn KMnO4ch b phn hy mt phn. Trong Y c 1,49 gam KCl chim 19,893% theo khilng. Trn lng O2 trn vi khng kh theo t l 1:4 v th tch trong mt bnh kn ta thu c hn hpkh Z. Cho vo bnh 0,528 gam cacbon ri t chy ht cacbon, phn ng hon ton, thu c hn hp khT gm 3 kh O2, N2, CO2, trong CO2chim 22 % th tch. Gi tr m (gam) l

A. 8,53 B. 8,77 C. 8,70 D. 8,91Cu 20:Ho tan hon ton 20,45 gam hn hp gm FeCl3v NaF (c cng s mol) vo mt lng nc(d), thu c dung dch X. Cho dung dch AgNO3(d) vo X, sau khi phn ng xy ra hon ton sinh ram gam cht rn. Gi tr ca m l

A. 43,50 B. 14,35 C. 43,05 D. 55,75

Cu 21:Cho dung dch cha 6,595 gam mui clorua ca hai kim loi kim thuc hai chu k lin tip vodung dch AgNO3(d), thu c 15,785 gamkt ta. Phn trm khi lng ca mui c khi lng phnt nh l

A. 92,719% B. 11,296% C. 7,281% D. 88,704%

Cu 22:Cho 6 gam brom c ln tp cht l clo vo mt dung dch c cha 1,60 gam kali bromua v lcu th ton b clo phn ng kt. Sau lm bay hi hn hp sau th nghim v sy kh thu c 1,36gam cht rn khan. Hm lng clo c trong loi brom ni trn l

A. 3,21% B. 3,19% C. 3,20% D. 3,22%

Cu 23:Ho tan ht 1,73 gam hn hp rn gm lu hunh v photpho trong dung dch cha 0,35molHNO3thu c dung dch X v NO2(sn phm kh duy nht). Trung ho X cn 0,19 mol NaOH. Phntrm khi lng ca photpho trong hn hp rn ban u l

A.46,24% B.62,15% C.52,45% D.53,76%

Cu 24:Cho hn hp X gm a mol photpho v b mol lu hunh. Ha tan hon ton X trong dung dchHNO3c ly d 20% so vi lng cn dng thu c dung dch Y. S mol NaOH cn dng trung haht dung dch Y l

A. (3a + 2b) mol B. (3,2a + 1,6b) mol

C.(1,2a + 3b) mol D. (4a + 3,2b) molCu 25:Nhit phn mt mui nitrat kim loi c ha tr khng i thu c hn hp kh X v oxit kim loi.Khi lng ring ca hn hp kh X iu kin chun l

A. 1,741 gam/l. B. 1,897 gam/l.

C. 1,929 gam/l. D. 1,845 gam/l.

Cu 26:Nhit phn hon ton m gam hn hp X gm KNO3v Fe(NO3)2. Hn hp kh thu c em dnvo bnh cha 4 lt H2O th khng thy kh thot ra khi bnh. Dung dch thu c c gi tr pH=1 v chcha mt cht tan duy nht, coi th tch dung dch khng thay i. Gi tr ca m l

A. 46,1 gam. B. 48,2 gam. C. 36,2 gam. D. 44,2 gam.

Cu 27:Nung 0,658 gam Cu(NO3)2 trong bnh kn khng cha khng kh, sau mt thi gian thu c0,496 gam cht rn v hn hp kh X. Hp th hon ton X vo nc c 300 ml dung dch Y. Dungdch Y c pH bng

A. 1. B. 4. C. 3. D. 2.

Cu 28:X l hn hp cc mui Cu(NO3)2, Zn(NO3)2, Fe(NO3)3, Mg(NO3)2. Trong O chim 9,6% vkhi lng. Nung 50 gam X trong bnh kn khng c oxi n khi phn ng xy ra hon ton thu c m


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gam oxit. Gi tr ca m lA. 44,6 B. 39,2 C. 17,6 D. 47,3

Cu 29: Hn hp X gm Fe(NO3)2, Cu(NO3)2v AgNO3. Thnh phn % khi lng ca nit trong X l11,864%. C th iu ch c ti a bao nhiu gam hn hp ba kim loi t 14,16 gam X?

A.10,56 gam. B.7,68 gam. C.3,36 gam. D.6,72 gam.

Cu 30:Cho 0,5 mol Mg v 0,2 mol Mg(NO3)2vo bnh kn khng c oxi ri nung nhit cao n

phn ng hon ton thu c hn hp cht rn X. Hn hp cht rn X tc dng vi nhiu nht 500 mldung dch Fe(NO3)3c nng aM. Gi tr caa lA. 2. B. 0,667. C. 0,4. D. 1,2.

Cu 31:Hn hp X gm Fe(NO3)2, Cu(NO3)2v AgNO3. Thnh phn % khi lng ca N trong X l11,864%. C th iu chti a bao nhiu gam hn hp 3 kim loi t 14,61 gam X?

A. 7,68 gam B. 3,36 gam C. 6,72 gam D. 10,56 gam

Cu 32:Nung nng 66,2 gam Pb(NO3)2thu c 53,24 gam cht rn v V lit kh (ktc). Gi tr ca V vhiu sut phn ng ln lt l

A. 9,01 v 80,42% B.6,72 v 60% C.6,72 v50 % D. 4,48 v 60%

Cu 33:Nung nng AgNO3c cht rn X vkh Y. Dn kh Y vo cc nc c dung dch Z. Choton b X vo Z thy X tan mt phn v thot ra kh NO duy nht. Gi thit cc phn ng xy ra hon

ton. Phn trm khi lng ca X khng tan trong Z lA. 20%. B. 40%. C. 30%. D. 25%.

Cu 34:Nung nng n khi lng khng i 81 gam Fe(NO3)2trong mt bnh kn khng c oxi, ccht rn X v hn hp kh Y. Dn Y vo nc d c dung dch Z. Cho ton b X vo Z, sau phn ngthy cn li m gam cht rn khng tan. Gi tr ca m l

A. 24 B. 32 C. 8 D. 16

Cu 35:Nhit phn hon ton R(NO3)2(vi R l kim loi) thu c 8 gam mt oxit kim loi v 5,04 lthn hp kh X gm NO2v O2 (o ktc). Khi lng ca hn hp kh X l 10 gam. Cng thc ca mui cho l

A. Mg(NO3)2. B. Zn(NO3)2. C. Fe(NO3)2. D. Cu(NO3)2.

Cu 36:Nung nng n khi lng khng i 81 gam Fe(NO3)2trong mt bnh kn khng c oxi, c

cht rn X v hn hp kh Y. Dn Y vo nc d c dung dch Z. Cho ton b X vo Z, sau phn ngthy cn li m gam cht rn khng tan. Gi tr ca m l

A. 8 B. 16 C. 24 D. 32

Cu 37:Nung 8,08 gam Fe(NO3)3.9H2O n khi phn ng hon ton, sn phm kh thu c hp th vaht 200 gam dung dch NaOH 1,2% thu c dung dch mui c nng % l

A. 2,35% B. 2,25% C. 2,47% D. 3,34%

Cu 38:Nhit phn hon ton hn hp gm a mol AgNO3v b mol Cu(NO3)2c hn hp kh c tkhi so vi H2l 21,25. T s a/b l

A. 4 B. 1 C. 2 D. 3

Cu 39:Nung hn hp gm 6,4 gam Cu v 54 gam Fe(NO3)2trong bnh kn, chn khng. Sau phn ng

hon ton thu c hn hp kh X. Cho X phn ng ht vi nc, thu c 2 lt dung dch Y. pH cadung dch Y l

A. 1,3. B. 1. C. 0,664. D. 0,523

Cu 40:Nung nng hon ton 27,3 gam hn hp NaNO3, Cu(NO3)2. Hn hp kh thot ra c dn vonc d th thy c 1,12 lt kh (ktc) khng b hp th (lng O 2ha tan khng ng k). Khi lngCu(NO3)2trong hn hp ban u l

A. 4,4 gam. B. 18,8 gam. C. 28,2 gam. D. 8,6 gam.

Cu 41:A l hn hp kh gm SO2v CO2c t khi hi so vi H2l 27. Dna mol hn hp kh A quabnh ng 1 lt dung dch NaOH 1,5a M, sau phn ng c cn dung dch thu c m gam mui. Biu thclin h gia m v a l

A. m = 116a B. m = 141a C. m = 103,5a D. m = 105a

Cu 42:Hn hp X gm a mol Cu2S v 0,2 mol FeS2. t hn hp X trong O2thu c hn hp oxit Yv kh SO2. Oxi ha hon ton SO2thnh SO3sau cho SO3hp nc thu c dung dch cha H2SO4.Ha tan hon ton hn hp Y bng dung dch H2SO4thu c dung dch cha 2 mui. Gi tr ca a l

A.0,1 mol B.0,15 mol C.0,05 mol D.0,2 mol


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Cu 43:Nung 22,4 gam kim loi M (ho tr 2) vi lu hunh d thu c cht rn X. Cho cht rn X tcdng hon ton vi lng d dung dch HCl thu c kh A v 6,4 gam b rn khng tan. Lm kh cht

b rn ri t chy hon ton thu c kh B. Kh B phn ng va vi kh A thu c 19,2 gam ncht rn. Kim loi M l

A.Ca B.Mg C.Fe D.Zn

Cu 44:a mt hn hp kh N2v H2c tl1: 3 vo thp tng hp, sau phn ng thy thtch kh i

ra gim 1/10 so viban u. Hiu sut ca phn ng tng hp NH3lA. 10% B. 20% C. 15% D. 25%Cu 45:Hn hp X gm N2v H2, t khi ca X so vi He bng 1,8. Nung nng (c mt ca bt st xctc) hn hp X sau mt thi gian c hn hp kh Y, t khi ca Y so vi He bng 2,25. Hiu sut phnng l

A.50%. B. 25%. C.37,5%. D.75%.

Cu 46:Hn hp X gm N2v H2c t khi so vi hiro l 4,25. Dn hn hp X qua xc tc un nng thc hin phn ng tng hp hiu sut phn ng l 28% thu c hn hp kh Y. Phn trm th tch H2trong hn hp Y l

A. 62,79% B. 20,93% C. 21,59% D. 21,43%

Cu 47:Nung nng hn hp gm 0,5 mol N2v 1,5mol H2trong bnh kn (c xc tc) ri a v nhit

tC thy p sut trong bnh lc ny l P1. Sau cho mt lng d H2SO4c vo bnh (nhit lc nytrong bnh l tC) n khi p sut n nh th thy p sut trong bnh lc ny l P 2(P1= 1,75P2). Hiu suttng hp NH3l

A.65%. B.70%. C.50%. D.60%.

Cu 48:Bnh kn c V=0,5 lt cha 0,5 mol H2v 0,5 mol N2 t0C khi t ti cn bng c 0,2 mol NH3

to thnh. hiu sut tng hp NH3t 90% cn phi thm vo bao nhiu molN2?A. 25 mol B.5mol C. 57,25 mol D. Kt qu khc

Cu 49:Thi mt lung kh CO qua hn hp A gm Fe v Fe2O3 nung nng thu c kh B v cht rnD. Cho B qua nc vi trong d thy to ra 6 gam kt ta. Ho tan D bng H2SO4c nng d thy to ra0,18 mol kh SO2v 24 gam mui. Phn trm s mol ca Fe v Fe2O3trong hn hp ban u ln lt l

A.75%; 25%. B.45%; 55%. C.66,67%; 33,33%. D.80%; 20%.

Cu 50:Ha tan ht mt lng S v 0,01 mol Cu2S trong dung dch HNO3c, nng, sau phn ng honton dung dch thu c ch c 1 cht tan v sn phm kh l kh NO 2duy nht. Hp th ht lng NO2ny vo 200 ml dung dch NaOH 1M, ri c cn dung dch sau phn ng th c m gam cht rn khan.Gi tr ca m l

A. 18,4. B. 12,64. C. 13,92. D. 15,2.

Cu 51:Oxi ha hon ton m gam p-xilen (p-imetylbenzen) bng dung dch KMnO4un nng, va thu c dung dch X v cht rn Y. Cho cht rn Y phn ng ht vi dung dch HCl c, d thy thot rax mol Cl2. S mol HCl phn ng va vi cc cht c trong dung dch X l

A. 0,25x mol. B. 2x mol. C. 0,5x mol. D. x mol.

Cu 52:Cho 10,88 gam X gm Cu, Fe, Mg tc dng viclo d th sau phn ng thu c 28,275gam hn

hp mui khan. Mt khc, 0,44 mol X tc dng vi dung dch HCl d th thu c 5,376 lt H 2(ktc). %khi lng ca Cu trong X l

A. 67,92% B. 58,82% C. 37,23% D. 43,52%

Cu 53:Ha tan hon ton 3,76 gam hn hp: S, FeS, FeS2trong HNO3d c 0,48 mol NO2v dungdch X. Cho dung dch Ba(OH)2d vo X, lc kt ta nung n khi lng khng i th khi lng chtrn thu c l


Cu 54:Nung m gam hn hp X gm FeS v FeS2trong mt bnh kn cha khng kh (gm 20% th tchO2v 80% th tch N2) n khi phn ng xy ra hon ton, thu c cht rn v hn hp kh Y c thnh

phn th tch: N2= 84,77%; SO2= 10,6% cn li l O2. Thnh phn % theo khi lng ca FeS trong X lA. 68,75% B. 59,46% C. 26,83% D. 42,3%

Cu 55:NH4HCO3l thnh phn chnh ca bt n. Cho 79 gam NH4HCO3vo bnh bng thp c dungtch 2 lt, y kn np, sau ht ht khng kh khi bnh, ri nung bnh 127C n hon ton. p suttrong bnh sau khi nung l (gi thit bnh gin n khng ng k v nhit bnh c gi 127C)

A. 32,8 atm. B. 16,4 atm. C. 15,6 atm. D. 49,2 atm.


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Cu 56:Cho 200 ml dung dch H3PO41M vo 250 ml dung dch hn hp NaOH 0,5M v KOH 1,5M.Sau khi phn ng hon ton thu c dung dch X. S gam mui c trong dung dch X l


Cu 57:Cho 100 ml dung dch NaOH 4M tc dng vi 100 ml dung dch H 3PO4aM thu c 25,95 gamhai mui. Gi tr caa l

A. 1,5 B. 1,75 C. 1,25 D. 1

Cu 58:Cho 6,16 lit kh NH3v V ml dung dch H3PO40,1M phn ng ht vi nhau thu c dung dchX. X phn ng c vi ti a 300 ml dung dch NaOH 1M. Khi lng mui khan c trong X bngA. 147,0 gam B. 14,9 gam C. 13,235 gam D. 14,475 gam

Cu 59:t chy hon ton m gam hp cht X ca photpho cn m17

mol oxi, sau phn ng chthu c

P2O5v13,5m

17gam H2O. Cho ton bsn phm chy vo 125 gam dung dch NaOH 16% thu c dung

dch B chcha hai mui NaH2PO4v Na2HPO4c nng C% bng nhau. Gi trca m lA.24,35. B.11,66. C.13,6. D.11,9.

Cu 60:Hotanhonton m gam hnhp XgmFeS2vCu2SvoaxitHNO3(va),thuc dung dch X(ch cha hai mui sunfat) v 8,96 lt (ktc) kh duy nht NO. Nu cng cho lng X trn tan vo trong

dung dch H2SO4c nng thu c V lit (ktc) kh SO2. Gi tr ca V lA. 8,96. B. 13,44. C. 6,72. D. 5,6.

Cu 61:Hn hp kh A gm SO2v khng kh c t l th tch l 1:5. Nung hn hp A vi xc tc V2O5trong mt bnh kn c dung tch khng i thu c hn hp kh B. T khi ca A so vi B l 0,93. Khngkh c 20% th tch l O2v 80% th tch l N2. Hiu sut ca phn ng oxi ha SO2l

A. 75% B. 86% C. 84% D. 80%

Cu 62:Nung hn hp SO2, O2c s mol bng nhau trong mt bnh kn c th tch khng ivi chtxc tc thch hp. Sau mt thi gian, a bnh v nht ban u thy p sut trong bnh gim 10% sovi p sut ban u. Hiu sut ca phn ng xy ra bng

A. 40% B. 50% C. 20% D. 75%

Cu 63:Hn hp X gm O2v O3c t khi so vi H2l x. t chy hon ton 1 lt hn hp Y gmCO v H2cn 0,4 lt hn hp X. Bit t khi ca Y so vi H2bng 7,5 v cc th tch kh o cng iukin nhit , p sut. Gi tr ca x l

A. 19,2 B. 22,4 C. 17,6 D. 20

Cu 64:A l hn hp O2v O3c tkhi so vi hiro l 19,2. B l hn hp H2v CO c tkhi so vihiro l 3,6. t chy 8,64 gam hn hp kh B cn dng V lt hn hp kh A (ktc). Gi trca V l

A. 13,44 B. 8,96 C. 11,2 D. 22,4

Cu 65:Nung nng hn hp gm 0,5 mol N2v 1,5 mol H2trong bnh kn (c xc tc) ri a v nhit t0C thy p sut trong bnh lc ny l P1. Sau cho mt lng d H2SO4c vo bnh(nhit lc nytrong bnh l t0C) n khi p sut n nh th thy p sut trong bnh lc ny l P 2(P1= 1,75P2). Hiu suttng hp NH3l

A.65%. B.70%. C.50%. D.60%.Cu 66:Cho 69,16 gam hn hp kh A gm clo v oxi tc dng va ht vi0,99 mol hn hp B gm Mg,Zn v Al th thu c 105,64 gam hn hp X gm mui clorua v oxit ca 3 kim loi. Cho X phn ngva vi dung dch HCl th thu c dung dch Y. tc dng ht vi cc cht trong dung dch Y cndng 715 ml Ba(OH)22M. S mol Zn c trong B l

A. 0,3 mol B. 0,25 mol C. 0,15 mol D. 0,2 mol

Cu 67:Phng tia la in qua 10 lit kh O2, sau mt thi gian thu c 9,5 lit kh (cc th tch kh o cng iu kin nhit v p sut). Hiu sut phn ng chuyn ha oxi thnh ozon l

A. 5% B. 20% C. 15% D. 10%

Cu 68:Nhit phn hon ton 2,45 gam mt mui v c X thu c 672 cm3O2( ktc). X lA. KClO3. B. KClO. C. KClO4. D. KClO2.

Cu 69:Thm 6,0 gam P2O5vo 25 ml dung dch H3PO46,0% (d = 1,03 g/ml). Nng % ca H3PO4trong dung dch thu c l

A. 30,95%. B. 29,75%. C. 26,08%. D. 35,25%.


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Cu 70:Cho hi nc i qua than nng , thu c 17,92 lt hn hp kh X (ktc) gm CO, CO 2v H2.Cho ton b X tc dng ht vi CuO (d) nung nng, thu c hn hp cht rn Y. Ha tan ton b Y

bng dung dch HNO3(long, d) c 8,96 lt NO (sn phm kh duy nht, ktc). Phn trm th tchkh CO trong X l

A. 28,57% B. 24,50% C. 14,28% D. 12,50%

Cu 71:Cho hi nc i qua than nung nng sau khi loi b hi nc d thu c 17,92 lt (ktc) hn

hp kh X gm CO2, CO v H2. Hp th X vo dung dch Ba(OH)2d thu c 35,46 gam kt ta v c Vlt kh Y thot ra. Cho Y tc dng vi CuO d nung nng sau phn ng thy khi lng cht rn gim mgam. Gi tr ca m l


Cu 72:Cho hi nc i qua than nung nng sau khi loi b hi nc d thu c 17,92 lt (ktc) hnhp kh X gm CO2, CO v H2. Hp th X vo dung dch Ba(OH)2d thu c 39,4 gam kt ta v c Vlt kh Y thot ra. Cho Y tc dng vi CuO d nung nng sau phn ng thy khi lng cht rn gim mgam. Gi tr ca m l


Cu 73:Mt loi phn kali c cha 68,56% KNO3, cn li l gm cc cht khng cha kali. dinhdng ca loi phn kali ny l

A. 26,47%. B. 67,87%. C. 63,8%. D. 31,9%.Cu 74:Mt loi phn supephotphat kp c cha 72,68% mui canxi ihirophotphat cn li gm cccht khng cha photpho. dinh dng ca loi phn ln ny l

A. 60,68% B. 37,94% C. 30,34% D. 44,1%

Cu 75:Phn supephotphat kp thc t sn xut c thng ch c 40% P2O5. Vy % khi lngCa(H2PO4)2trong loi phn bn l

A.78,56%. B.56,94%. C.65,92%. D.75,83%.

Cu 76:Cho 19 gam hn hp bt gm kimloi M (ho tr khng i) v Zn (t l mol tng ng 1,25 : 1)vo bnh ng 4,48 lt kh Cl2(ktc), sau cc phn ng hon ton thu c hn hp cht rn X. Cho X tanht trong dung dch HCl (d) thy c 5,6 lt kh H2thot ra (ktc). Kim loi M l

A.Na. B. Mg. C. Al. D. Ca.

Cu 77:Cho V lt hn hp kh A gm clo v oxi tc dng va ht vi hn hp B gm 0,2 mol Al v 0,1mol Mg th thu c 25,2 gam hn hp mui clorua v oxit ca 2 kim loi. S mol ca Cl2c trong V lthn hp kh A l

A. 0,15. B. 0,3. C. 0,2. D. 0,25.

Cu 78:Mt hn hp X gm Cl2v O2. X phn ng va ht vi 9,6 gam Mg v 16,2 gam Al to ra 74,1gam hn hp mui clorua v oxit. Thnh phn % theo th tch ca Cl2trong X l

A.50%. B.55,56%. C.66,67%. D.44,44%.

Cu 79:t chy ht 9,984 gam kim loi M (c ho tr II khng i ) trong hn hp kh Cl 2v O2. Sauphn ng thu c 20,73 gam cht rn v th tch hn hp kh phn ng l 3,4272 lit (ktc). Kim loiM l

A.Ca B.Mg C.Zn D.CuCu 80:Cho 0,448 lt kh NH3(ktc) i qua ng s ng 16 gam CuO nung nng, sau khi phn ng xy rahon ton thu c cht rn X. Cho X vo dung dch HNO3c, nng (d) thu c V lt kh (ktc). Gitr ca V l

A. 1,344. B. 8,960. C. 0,672. D. 0,448.

Cu 81:Dn 2,24 lt hn hp kh (ktc) gm oxi v ozon i qua dung dch KI (d) thy c 12,7 gam chtrn mu tm en c to thnh. Thnh phn phn trm theo th tch ca oxi v ozon trong hn hp trnln lt l

A. 75%, 25%. B. 50%, 50%. C. 30%, 70%. D. 45%, 55%.

Cu 82:Khi lng cn thit ca silic ioxit, natri cacbonat v canxi cacbonat iu ch 1500 kg thutinh (c thnh phn: 6,813 SiO2.CaO.1,535 Na2O) ln lt l

A. 1095 kg, 145 kg, 267 kg. B. 730 kg, 435 kg, 186 kg.

C. 365 kg, 145 kg, 90 kg. D. 1095 kg, 435 kg, 267 kg.


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Cu 83:Cho 3,36 lt kh SO2(ktc) tc dng va ht vi dung dch KMnO4, sau phn ng thu c dungdch c pH = 1. Coi thtch dung dch thay i khng ng k. Nng mol/l ca dung dch KMnO4 dng l

A. 0,03M B. 0,04M C. 0,1M D. 0,05M

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Phi_kim Vũ Khắc Ngọc LTĐH

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