40 de phien ban 2014

GSTT GROUP

2014

40 THI TH I HC

CHN LC Mn HA HC

Tp 2

T I T R B I L O V E B O O K . V N

1 | G S T T G R O U P

Anh ch GSTT chc em tr thnh

mt tn sinh vin ca i Hc em

hng m c!

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TUYN TP 40 THI TH I HC MN HA PHIN BN 2014

2 | L O V E B O O K . V N

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Bnh v THPT Nguyn Siu Hng Yn 6. T chc thi th i hc cho 1000 em hc sinh khu vc H Ni.

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s 1

I. PHN CHUNG CHO TT C TH SINH (40 cu, t cu 1 n cu 40)

Cu 1: Mt hn hp X c khi lng m gam gm Ba v Al. Cho m gam X tc dng vi nc d, thu c 8,96

lt kh H2. Cho m gam X tc dng vi dung dch Ba(OH)2 d thu c 22,4 lt kh H2 (cc phn ng u xy ra

hon ton, cc th tch kh o iu kin tiu chun). m c gi tr l

A. 16,8 gam. B. 27,2 gam. C. 24,6 gam. D. 29,9 gam.

Cu 2: C 3 dung dch hn hp l dung dch: X (NaHCO3 v Na2CO3); Y (NaHCO3 v Na2SO4); Z (Na2CO3 v Na2SO4).

Ch dng thm 2 dung dch no di y nhn bit c 3 dung dch trn?

A. HNO3 v Ba(NO3)2. B. HCl v NaCl. C. NaOH v NaCl. D. NH3 v NH4Cl.

Cu 3: Oxi ho nh 3,2 gam ancol CH3OH thu c hn hp sn phm gm anehit, axit, ancol d v nc

trong s mol anehit bng 3 ln s mol axit. Cho ton b sn phm phn ng vi lng d dung dch

AgNO3/NH3 thu c 15,12 gam Ag. Hiu sut phn ng oxi ho l

A. 70%. B. 65%. C. 40%. D. 56%.

Cu 4: Cho s phn ng sau :

Tn ca Y l

A. Vinylbenzoat. B. Metylacrylat. C. Benzylacrylat. D. Phenylacrylat.

Cu 5: Nung nong tng ca p chat trong binh kin: (1) Fe + S(r), (2) Fe2O3 + CO(k), (3) Au + O2(k), (4) Cu +

Zn(NO3)2(r), (5) Cu + KNO3(r), (6) Al + NaCl (r). Cac trng hp xay ra phan ng oxi hoa kim loai la

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

Cu 6: Cho cc phn ng ho hc sau y:

(1) Al4C3 + 12H2O 4Al(OH)3 + 3CH4 (2) 2Na + 2H2O 2NaOH + H2

(3) CH3Cl + H2O +OH CH3OH + HCl (4) C2H2 + H2O

Hg2+ CH3CHO

(5) Na2O2 + H2O NaOH + H2O2 (6) 2F2 + 2H2O 4HF + O2

S phn ng ho hc trong H2O ng vai tr cht oxi ho hoc cht kh l

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

Cu 7: Dy gm cc cht u tc dng vi dung dch AgNO3/NH3 l

A. axit fomic, vinylaxetilen, propin. B. anehit axetic, but-1-in, etilen.

C. anehit axetic, axetilen, but-2-in. D. anehit fomic, axetilen, etilen.

Cu 8: Sc V lt CO2 ( ktc) vo 1 lt dung dch hn hp NaOH 0,02M v Ba(OH)2 0,02M n phn ng hon

ton thu c 1,97 gam kt ta v dung dch X. Cho dung dch NaOH vo dung dch X li thu c kt ta. Gi

tr ca V l

A. 1,12 lt. B. 0, 224 lt hoc 1,12 lt

C. 0,448 lt. D. 0,896 lt hoc 0,448 lt.

Cu 9: Hn hp kh A ( nhit thng) gm hirocacbon X mch h v oxi d c t l th tch 4:21 cho vo

mt bnh kn dung tch khng i thy p sut l p atm. Bt tia la in, t chy hon ton hn hp, sau phn

ng, loi b hi nc ri a v nhit ban u c hn hp B c p sut 0,52p atm. S cht X tha mn

d kin u bi l

A. 5. B. 1. C. 4. D. 6.

Cu 10: t chy hon ton 1,18 gam mt amin n chc Y bng mt lng khng kh va . Dn ton b

kh sau phn ng vo bnh ng dung dch Ca(OH)2 d thu c 6 gam kt ta v 9,632 lt kh ( ktc) duy

nht thot ra khi bnh. Cng thc phn t ca Y l

A. C2H7N. B. C4H11N. C. C3H9N. D. CH5N.

Cu 11: Dung dch X cha 0,375 mol K2CO3 v 0,3 mol KHCO3. Thm t t dung dch cha 0,525 mol HCl vo

dung dch X c dung dch Y v V lt CO2 (ktc). Thm dung dch nc vi trong d vo Y thy to thnh m

gam kt ta. Gi tr ca V v m l

A. 6,72 lt; 26,25 gam. B. 3,36 lt; 52,5 gam. C. 3,36 lt; 17,5 gam. D. 8,4 lt; 52,5 gam.


Cu 12: Cho 11,6 gam mui FeCO3 tc dng va vi dung dch HNO3, c hn hp kh CO2, NO v dung

dch X. Khi thm dung dch HCl (d) vo dung dch X c dung dch Y. Khi lng bt ng kim loi ti a c

th ha tan trong dung dch Y (bit NO l sn phm kh duy nht) l

A. 14,4 gam. B. 32 gam. C. 16 gam. D. 7,2 gam.

Cu 13: S proton, ntron, electron c trong mt ion Cr3+ (cho 2452Cr) ln lt l

A. 24, 28, 21. B. 24, 30, 21. C. 24, 28, 24. D. 24, 28, 27.

Cu 14: Cho cc dung dch: Na2CO3, NaHCO3, AlCl3, CaCl2, Ca(HCO3)2, Mg(HCO3)2, K2SO3, K2SO4 ln lt tc dng

vi dung dch Ba(OH)2. S trng hp xy ra phn ng l

A. 8. B. 5. C. 7. D. 6.

Cu 15: Mun tng hp 60 kg thy tinh hu c (thy tinh plexiglat) th khi lng axit v ancol phi dng ln

lt l (bit hiu sut qu trnh este ha v qu trnh trng hp ln lt l 60% v 80%)

A. 107,5kg v 40kg. B. 85kg v 40kg. C. 32,5kg v 20kg. D. 85,5 kg v 41 kg.

Cu 16: Ha tan 2,29 gam hn hp Ba v Na vo nc thu c dung dch X v 672 ml kh (ktc). Nh t t

dung dch FeCl3 vo dung dch X cho n d, lc kt ta, ra sch, sy kh v nung n khi lng khng i

thu c m gam cht rn. Gi tr ca m l

A. 6,4. B. 4,8. C. 1,6. D. 3,2.

Cu 17: X v Y l 2 hp cht ch c chc ancol, trong khi lng mol ca X nh hn ca Y. Khi t chy hon

ton mi cht X, Y u to ra s mol CO2 t hn s mol H2O. t chy hon ton hn hp Z gm nhng lng

bng nhau v s mol ca X v Y thu c t l s mol CO2 v H2O tng ng l 2:3. S hp cht tha mn cc

tnh cht ca Y l

A. 6 cht. B. 2 cht. C. 4 cht. D. 5 cht.

Cu 18: Chia dung dch Z cha cc ion: Na+, NH4+, SO42-, CO32-thnh 2 phn bng nhau. Phn 1 cho tc dng vi

dung dch Ba(OH)2 d, un nng thu c 4,3 gam kt ta X v 470,4 ml kh Y 13,50C v 1atm. Phn 2 cho

tc dng vi dung dch HCl d thu c 235,2 ml kh 13,50C v 1atm. Tng khi lng mui trong Z l


Cu 19: Hn hp X gm Al, Fe2O3 c khi lng 21,67 gam. Tin hnh phn ng nhit nhm hn hp X trong

iu kin khng c khng kh (gi thit ch xy ra phn ng Al kh Fe2O3 thnh kim loi). Ha tan hn hp

cht rn sau phn ng bng dung dch NaOH d thu c 2,016 lt H2 (ktc) v 12,4 gam cht rn khng tan.

Hiu sut ca phn ng nhit nhm l

A. 45%. B. 50%. C. 71,43%. D. 75%.

Cu 20: Hp cht X mch h c cng thc phn t C4H9NO2. Cho X phn ng va vi dung dch NaOH sinh

ra cht kh Y v dung dch Z. Kh Y lm xanh giy qu tm m. Dung dch Z c kh nng lm mt mu nc brom

v khng c kh nng trng bc. S ng phn ca X tha mn d kin u bi l

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

Cu 21: Dy gm cc cht u phn ng vi phenol l

A. nc brom, axit axetic, dung dch NaOH.

B. nc brom, anehit axetic, dung dch NaOH.

C. nc brom, kim loi natri, dung dch NaOH.

D. dung dch NaCl, dung dch NaOH, kim loi natri.

Cu 22: T 10 kg go np cha 80% tinh bt, khi ln men s thu c th tch dung dch ancol etylic 400 l

(bit rng hiu sut ca ton b qu trnh ln men t 80% v ancol etylic c khi lng ring 0,789 g/ml)

A. 15, 116 lt. B. 17,994 lt. C. 11,516 lt. D. 1,842 lt.

Cu 23: Trong cc cht sau y:(1) H2S; (2) SO2; (3) NaCl; (4) CaO; (5) NH3; (6) HBr; (7) H2SO4; (8) CO2; (9)

K2S. Cc cht cha lin kt cng ho tr l

A. (1), (2), (5), (6), (7), (8). B. (3), (5), (6), (7), (8), (9).

C. (1), (4), (5), (7), (8), (9). D. (1), (2), (3), (4), (8).

Cu 24: Cho s :

X +CuO Y

+O2 D

+CH3OH D

trng hp thy tinh plexiglat.

Cng thc cu to ca X l

A. CH3CH(CH3)CH2OH. B. CH2=C(CH3)CH2CH2OH.

C. CH3CH(CH3)CH2CH2OH. D. CH2=C(CH3)CH2OH.


Cu 25: Cho 15,2 gam cht hu c X phn ng va vi 300 ml dung dch NaOH 1M thu c dung dch Y.

C cn dung dch Y ch thu c hi nc 23,6 gam hn hp mui khan Z. t chy hon ton Z thu c

Na2CO3, 14,56 lt CO2 (kc) v 6,3 gam H2O (bit X c cng thc phn t trng vi cng thc n gin nht).

Cng thc phn t ca X l

A. C8H10O3. B. C8H8O3. C. C8H8O. D. C9H8O2.

Cu 26: nhn bit cc cht etanol, propenol, etylenglycol, phenol c th dng cp cht

A. nc brom v dung dch NaOH. B. nc brom v Cu(OH)2.

C. dung dch KMnO4 v Cu(OH)2. D. dung dch NaOH v Cu(OH)2.

Cu 27: Ho tan hon ton x gam hn hp gm NaI v NaBr vo nc thu c dung dch X. Cho Br2 d vo X

c dung dch Y. C cn Y thu c y gam cht rn khan. Tip tc ho tan y gam cht rn khan trn vo nc

c dung dch Z. Cho Cl2 d vo Z c dung dch T. C cn T thu c z gam cht rn khan. Bit cc phn

ng xy ra hon ton v 2y = x + z. Phn trm khi lng ca NaBr trong hn hp ban u l

A. 7,3%. B. 3,7%. C. 6,7%. D. 4,5%.

Cu 28: Cho Bari kim loi ln lt vo cc dung dch sau: NaHCO3, CuSO4, (NH4)2CO3, NaNO3, MgCl2. S trng

hp to kt ta l

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

Cu 29: Ha tan ht 6,08 gam hn hp gm Cu, Fe bng dung dch HNO3 thu c dung dch X v 1,792 lt NO

(ktc). Thm t t 2,88 gam bt Mg vo dung dch X n khi phn ng xy ra hon ton thu c 0,448 lt NO

(ktc), dung dch Y v m gam cht rn khng tan. Gi tr ca m l


Cu 30: Cho 6,9 gam mt ancol n chc phn ng vi CuO nung nng, thu c cht rn A v 9,3 gam hn

hp X gm anehit, nc v ancol d. Cho ton b lng hn hp X phn ng hon ton vi lng d dung

dch AgNO3 trong NH3, un nng, thu c m gam Ag. Gi tr ca m l

A. 32,4. B. 64,8. C. 24,3. D. 16,2.

Cu 31: Nung nng hn hp X gm 0,1 mol axetilen; 0,2 mol propen; 0,1 mol etilen v 0,6 mol hiro vi xc

tc Ni, sau mt thi gian thu c hn hp Y c t khi so vi H2 bng 12,5. Cho hn hp Y tc dng vi brom

d trong CCl4 thy c ti a a gam brom phn ng. Gi tr ca a l

A. 24. B. 16. C. 32. D. 48.

Cu 32: Cho cc th nghim sau:

(1) Sc t t n d kh CO2 vo dung dch NaAlO2 (hay Na[Al(OH)4]).

(2) Sc t t n d kh NH3 vo dung dch AlCl3.

(3) Nh t t n d dung dch HCl long vo dung dch NaAlO2 (hay Na[Al(OH)4]).

Nhng th nghim c hin tng ging nhau l

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

Cu 33: Khi un mt ancol X vi H2SO4 c 1700C, thu c 3 anken ng phn c cng thc C7H14. Khi

hiro ho cc anken th u thu c 2,2-imetylpentan. Tn gi ca X l

A. 2,2-imetylpentan-3-ol. B. 2,2-imetylpentan-4-ol. C. 4,4-imetylpentan-2-

ol. D. 3,3-imetylpentan-2-ol.

Cu 34: Cp cht no di y khng tn ti trong cng mt dung dch?

A. CuSO4 v HNO3. B. Na2SO4 v KCl. C. KNO3 v CuCl2. D. NaHCO3 v HCl.

Cu 35: Dy gm cc cht v ion va c tnh oxi ha, va c tnh kh l

A. O3, Fe2+, FeCl2, CrO3. B. HCl, Na2S, NO2, Fe3+.

C. NO2, Fe2+, Cl2, FeCl3, SO32-. D. FeO, H2S, Cu, HNO3.

Cu 36: Cho 9,6 gam hn hp hi gm metanal v propin tc dng hon ton vi lng d dung dch

AgNO3/NH3 thu c 73,89 gam kt ta. Cho kt ta ny vo dung dch HCl d, sau khi kt thc phn ng cn

li m gam cht khng tan. Gi tr ca m l


Cu 37: Ly 9,1 gam hp cht X c cng thc phn t l C3H9O2N tc dng vi dung dch NaOH d, un nng,

c 2,24 lt (o ktc) kh Y thot ra lm xanh giy qu tm m. t chy ht 1

2 lng kh Y ni trn, thu c

4,4 gam CO2. Cng thc cu to ca X v Y ln lt l

A. CH2=CHCOONH4; NH3. B. HCOOH3NC2H3; C2H3NH2.


C. CH3COOH3NCH3; CH3NH2. D. HCOOH3NC2H5; C2H5NH2.

Cu 38: ot chay hoan toan 10,33 gam hon hp X gom axit acrylic, axit aipic, axit propanoic va ancol etylic

(trong o so mol axit acrylic bang so mol axit propanoic) thu c hon hp khi va hi Y. Dan Y vao 3,5 lit dung

dich Ca(OH)2 0,1M thu c 27 gam ket tua va nc loc Z. un nong nc loc Z li thu c ket tua. Neu cho

10,33 gam hon hp X tre n tac dung vi 100ml dung dich KOH 1,2M, sau phan ng co can dung dich thi thu

c khi lng chat ran la


Cu 39: Cho 2,13 gam hn hp gm Cu v Al dng bt tc dng hon ton vi oxi thu c hn hp X gm

hai oxit c khi lng 3,33 gam. Th tch dung dch HCl 0,6M va phn ng ht vi X l

A. 200 ml. B. 250 ml. C. 300 ml. D. 150 ml.

Cu 40: Thc hin phn ng nhit phn hon ton cc cht sau: KClO3 (xc tc MnO2), NH4NO3, NaHCO3, NH4NO2,

KMnO4, KNO3, BaCO3, AgNO3. S phn ng to ra O2 l

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

II. PHN RING (10 cu)

Th sinh ch c lm mt trong hai phn (phn A hoc phn B)

1. Phn A: Dnh cho th sinh theo chng trnh chun (10 cu, t cu 41 n cu 50)

Cu 41: Khi lng glucoz c trong nc qu nho bng bao nhiu sau khi ln men thu c 100 lt ru vang

10o (bit hiu sut phn ng ln men t 95%, ancol etylic nguyn cht c khi lng ring 0,8 g/ml, gi thit trong

nc qu nho ch c mt loi ng l glucoz) l

A. 32,952 kg. B. 15,652 kg. C. 16,476 kg. D. 31,304 kg.

Cu 42: Cho 3,04 gam hn hp X gm FeO, Fe3O4, Fe2O3. kh hon ton hn hp X cn 0,1 gam hiro. Mt

khc, ho tan hn hp X trong H2SO4 c, nng th th tch kh SO2 (sn phm kh duy nht ktc) l

A. 336 ml. B. 448 ml. C. 112 ml. D. 224 ml.

Cu 43: Cho bit cc phn ng xy ra sau:

2FeBr2 + 3Br2 2FeBr3 2NaBr + Cl2 2NaCl + Br2

Pht biu ng l

A. Tnh kh ca Cl mnh hn Br. B. Tnh kh ca Br mnh hn Fe2+.

C. Tnh oxi ho ca Br2 mnh hn Cl2. D. Tnh oxi ho ca Cl2 mnh hn ca Fe3+.

Cu 44: Ha tan ht 10,24 gam Cu bng 200 ml dung dch HNO3 3M c dung dch X. Thm 400 ml dung dch

NaOH 1M vo dung dch X. Lc b kt ta, c cn dung dch ri nung cht rn n khi lng khng i thu

c 26,44 gam cht rn. S mol HNO3 phn ng vi Cu l

A. 0,48 mol. B. 0,58 mol. C. 0,4 mol. D. 0,56 mol.

Cu 45: Hp cht c cng thc phn t C4H9Br c s ng phn cu to l

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

Cu 46: chng n mn cho ng ng dn du bng thp chn di t, ngi ta dng phng php in

ho. Trong thc t, ngi ta dng kim loi no sau y lm in cc hi sinh?

A. Sn. B. Cu. C. Na. D. Zn.

Cu 47: Chia hn hp A gm ancol metylic v mt ancol ng ng lm 3 phn bng nhau.

- Phn 1: cho phn ng ht vi Na thu c 0,336 l H2 (kc).

- Phn 2: oxi ha bng CuO thnh hn hp anehit vi hiu sut 100%, sau cho ton b sn phm hu

c tc dng vi lng d AgNO3 /NH3 thu c 10,8 gam bc.

S mol ca ancol metylic v ancol ng ng trong mi phn ln lt l

A. 0,012 v 0,018. B. 0,01 v 0,02. C. 0,015 v 0,015. D. 0,02 v 0,01.

Cu 48: Ho tan hon ton 0,3 mol hn hp gm Al v Al4C3 vo dung dch KOH (d), thu c a mol hn

hp kh v dung dch X. Sc kh CO2 (d) vo dung dch X, lng kt ta thu c l 46,8 gam. Gi tr ca a

l

A. 0,45. B. 0,40. C. 0,60. D. 0,55.

Cu 49: Cho cc phn ng ho hc sau:

(1) (NH4)2SO4 + CaBr2 (2) CuSO4 + Ca(NO3)2

(3) K2SO4 + CaCl2 (4) H2SO4 + CaCO3

(5) (NH4)2SO4 + Ca(OH)2 (6) Fe2(SO4)3 + CaCl2

Cc phn ng c cng phng trnh ion thu gn l


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

Cu 50: Mt peptit c cng thc cu to thu gn l:

CH3CH(NH2)CONHCH2CONH(CH3)CHCONH(C6H5)CHCONHCH2COOH

Khi un nng peptit trn trong mi trng kim sao cho cc lin kt peptit u b ph v th s sn phm hu

c thu c l

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

2. Phn B: Dnh cho th sinh theo chng trnh nng cao (10 cu, t cu 51 n cu 60)

Cu 51: Cho Eopin(Zn-Cu) = +1,10V; Eo(Zn2+/Zn) = - 0,76V v Eo(Ag+/Ag) = +0,80V. Sut in ng chun ca

pin Cu - Ag l

A. +0,56. B. +0,46V. C. +0,34V. D. +1,14V.

Cu 52: Nguyn t nguyn t c s hiu nguyn t bng 24 c tng s electron c thn l

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

Cu 53: Mt pin in ho c in cc Zn nhng trong dung dch ZnSO4 v in cc Cu nhng trong dung dch

CuSO4. Sau mt thi gian pin phng in th khi lng

A. in cc Zn gim cn khi lng in cc Cu tng.

B. in cc Zn tng cn khi lng in cc Cu gim.

C. c hai in cc Zn v Cu u giam.

D. c hai in cc Zn v Cu u tng.

Cu 54: Cho dy chuyn ha sau: Phenol +X Phenyl axetat

+NaOH d,t0 Y (hp cht thm). Hai cht X, Y trong

s ln lt l

A. axit axetic, natri phenolat. B. axit axetic, phenol.

C. anhirit axetic, natri phenolat. D. anhirit axetic, phenol.

Cu 55: Poli(metyl metacrylat) v nilon-6 c to thnh t cc monome tng ng l

A. CH2=C(CH3)COOCH3 v H2N[CH2]5COOH.

B. CH2=CHCOOCH3 v H2N[CH2]6COOH.

C. CH2=C(CH3)COOCH3 v H2N[CH2]6COOH.

D. CH3COOCH=CH2 v H2N[CH2]5COOH.

Cu 56: t chy m gam ng (II) sunfua trong kh oxi d thu c cht rn X c khi lng bng (m 4,8)

gam Nung X trong kh NH3 d ti khi lng khng i c cht rn Y. Ho tan Y trong dung dch HNO3 long

d, thu c V lt kh Z (ktc) khng mu, ha nu trong khng kh. Gi tr ca m (gam) v V (lt) l

A. 28,8 gam v 2,24 lt. B. 28,8 gam v 4,48 lt. C. 24,0 gam v 4,48 lt. D. 19,2 gam v 2,24 lt.

Cu 57: t chy hon ton mt th tch kh thin nhin gm metan, etan, propan bng oxi khng kh (trong

khng kh, oxi chim 20% th tch), thu c 7,84 lt kh CO2 ( ktc) v 9,9 gam nc. Th tch khng kh (

ktc) nh nht cn dng t chy hon ton lng kh thin nhin trn l

A. 78,4 lt. B. 56,0 lt. C. 70,0 lt. D. 84,0 lt.

Cu 58: Thu phn hon ton 150 gam hn hp cc ipeptit thu c 159 gam cc aminoaxit. Bit rng cc ipeptit

c to bi cc aminoaxit ch cha mt nguyn t N trong phn t. Nu ly 1/10 khi lng aminoaxit thu c tc

dng vi HCl d th lng mui thu c l


Cu 59: C mt dung dch X gm CH3COOH 1M v CH3COONa 0,10M (cho CH3COOH c Ka = 104,76). Gi tr

pH ca dung dch X l

A. 2,88. B. 3,76. C. 11,12. D. 10,24.

Cu 60: Cho dung dch cc cht sau: axit glutamic; glyxin, lysin, alanin, imetylamin, anilin,

phenylamoniclorua, kalibenzoat, etilenglicol. S dung dch lm qu tm chuyn mu hng, mu xanh, khng

i mu ln lt l

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

10 | L O V E B O O K . V N

P N

1D 2A 3C 4D 5A 6B 7A 8A 9C 10C 11B 12B 13A 14C 15A 16C 17A 18C 19D 20A 21C 22C 23A 24D 25B 26B 27B 28C 29C 30B 31B 32D 33C 34D 35C 36D 37D 38B 39B 40A 41C 42D 43D 44D 45B 46C 47D 48C 49A 50A 51B 52A 53A 54C 55A 56B 57C 58D 59B 60D


GII CHI TIT V BNH LUN

Cu 1: p n D

Ta c: nH2(TH1) < nH2(TH2) TH1 Al cha tan ht.

Gi x, y l s mol Ba v Al c trong m (g) hn hp.

+TH1: X + H2O. Ba + 2H2O Ba(OH)2 + H2x x x

2Al + Ba(OH)2 + H2O Ba(AlO2)2 + 3H2 x 3x

nH2 = 4x = 8,96

22,4= 0,4 x = 0,1 (mol)

+TH2: X + Ba(OH)2 d. Ba + 2H2O Ba(OH)2 + H2x x

2Al + Ba(OH)2 + H2O Ba(AlO2)2 + 3H2y 1,5y

nH2 = x + 1,5y =22,4

22,4= 1 (mol) y = 0,6 (mol)

Vy: m = mAl +mBa = 0,6.27 + 0,1.137 = 29,9(g).

Cu 2: p n A

-Cho cc dung dch tc dng vi dung dch Ba(OH)2 d. Ly kt ta thu c cho tc dng vi dung

dch HNO3 d:

+ Kt ta no tan + si bt kh Kt ta l BaCO3 dung dch X.

+ Kt ta no khng tan v khng c bt kh Kt ta BaSO4 dung dch Y.

+ Kt ta no tan mt phn v si bt kh Kt ta l BaCO3+ BaSO4 dung dch Z.

Cu 3: p n C

Pthh: 2CH3OH + O2 2HCHO + 2H2O CH3OH + O2 HCOOH + H2O

Gi nHCOOH = x mol nHCHO = 3x mol

Ta c: HCOOH AgNO3/NH3 2Ag ; HCHO

AgNO3/NH3 4Ag

Suy ra: nAg = 2nHCOOH + 4nHCHO 14x = 15,12

108= 0,14 (mol) x = 0,01 (mol).

Vy: H% = 4a

0,1= 40%

Cu 4: p n D

Ta c: CH2 = CH COO C6H5(Y) C6H5ONa (A1) C6H5OH (B1) C6H2(NO2)3OH (C1).

CH2 = CH COONa (A2) CH2 = CH COOH (B2) CH2 = CH COOCH3(C2).

Vy Y l Phenylacrylat.

Cu 5: p n A

Cc phn ng (4) v (5) th O2 to thnh do nhit phn mui nitrat s oxi ha cc kim loi.

Cu 6: p n B

Cc phng trnh trong H2O ng vai tr cht oxi ha hoc cht kh l:

(2), (4): H2O ng vai tr l cht oxi ha.

(6): H2O ng vai tr l cht kh.

Ch : Phng trnh (5) vi sn phm nh bi l trong iu kin nhit thp, cn vi iu kin nhit

cao ta c phng trnh: 2Na2O2 + 2H2O 4NaOH + O2.

Cu 7: p n A

Etilen khng tc dng vi dung dch AgNO3/NH3 nn loi B v D. Loi C v but-2-in khng c phn ng.

Ch : Ch cc lin kt 3 u mch mi c kh nng phn ng vi dung dch AgNO3/NH3.

Cu 8: p n C

Ta c: nOH = nNaOH + 2nBa(OH)2 = 0,06 mol.

Ta thy nBaCO3 = 0,01 < nBa(OH)2 suy ra xy ra 2 trng hp.

+ Trng hp 1: OH- d.

nCO2 = nBaCO3 = 0,01 mol V = 0,1.22,4 = 0,224 lt.

+ Trng hp 2: OH- ht, CO2 ha tan mt phn kt ta.

12 | L O V E B O O K . V N

nCO2 = nOH nBaCO3 = 0,06 0,01 = 0,05 (mol) V = 0,05.22,4 = 1,12 (lt).

Cu 9: p n C

T gi thit ta gi nA = 4 (mol) suy ra nO2 = 21 (mol).

Phn ng: CxHy + (x +

y4)O2 xCO2 +

y2H2O

4 4 (x + y4) 4x

Sau phn ng: O2 d: 21 4 (x + y

4) , v 4x mol CO2 suy ra nsau = 21 y (mol).

Do V v T khng i nn t l s mol bng t l vi p sut tng ng: 21 y

25=0,52p

p y = 8

Vi y = 8 ta c cc cht kh sau:

+C3H8 (c 1 cht)

+C4H8 (c 3 cht CH2 = CH CH2CH3 ; CH3 CH = CH CH3 ; CH3 C(CH3) = CH2.

Cu 10: p n C

Gi Y l CxHyN vi s mol l a.

Phn ng: CxHyN+ (x +y

4)O2 xCO2 +

y

2H2O +

1

2N2

Mol a a (x +y

4) ax

ay

2

a

2

nN2 (khng kh) = 4a (x + y

4) mol. C: {

(12x + y + 14). a = 1,18nCO2 = ax = 0,06

nN2 = 4a (x + y

4) +

a

2

{ax = 0,06ay = 0,18a = 0,02

{x = 3y = 9

Vy Y l C3H9N.

Cu 11: p n B

Khi cho t t dung dch HCl vo dung dch X th:

K2CO3 + HCl KHCO3 + KCl (1)

Mol: 0,375 0,375 0,375

KHCO3 + HCl KCl + H2O + CO2

Mol: 0,15 0,15 0,15

Sau phn ng (1), dung dch c: 0,375+ 0,3 = 0,675 mol KHCO3 v 0,525-0,375 = 0,15 mol HCl nn tip

tc xy ra phn ng (2).

Kt thc phn ng cn d 0,675 0,15 = 0,525 mol KHCO3

Ta c: VCO2 = 0,15.22,4 = 3,36(lt).

nCaCO3 = nKHCO3 = 0,525(mol) mCaCO3 = 0,525.100 = 52,5 (g).

Cu 12: p n B

Phn ng: 3FeCO3 + 10HNO3 3Fe(NO3)3 + 3CO2 + NO + H2O

Mol: 0,1 1

3 0,1

0,1

3

Dung dch X cha 0,1 mol Fe3+ v 0,3 mol NO3

3Cu + 8H+ + 2NO3 3Cu2+ + 2NO+ 4H2O

Mol: 0,45 0,3

Cu + 2Fe3+ Cu2+ + 2Fe2+

Mol: 0,050,1

nCu = 0,45 + 0,05 = 0,5 mol mCu = 0,5.64 = 32(g)

Cu 13: p n A

Trong Cr3+ c p =24 e = p - 3 = 21 v n = 52 24 = 28.

Cu 14: p n C

Cc cht tc dng c vi dung dch Ba(OH)2 l: Na2CO3; NaHCO3; AlCl3; Ca(HCO3)2; Mg(HCO3)2;

K2SO3 ; K2SO4.

Cu 15: p n A


CH2 = C(CH3) COOH + CH3OH CH2 = C(CH3) COOCH3 + H2O.

86(kg) 32(kg) 100(kg)

Vy: mCH3OH =60.32

100.0,6.0,8= 40(kg) v maxit =

60.86

100.0,6.0,8= 107,5(kg).

Cu 16: p n C

Ta c nOH = 2nH2 = 2.0,03 = 0,06 (mol).

Nh t t FeCl3 vo dung dch X: Fe3+ + 3OH Fe(OH)3

Nung kt ta: 2Fe(OH)3 Fe2O3 + 3H2O

Theo phng trnh: nFe2O3 = 1

6nOH = 0,01 mol mFe23 = 0,01.160 = 1,6(g)

Cu 17: p n A

Khi t chy X hay Y u thu c s mol ca CO2 nh hn s mol nc nn X v Y u l cc ancol no.

Theo bi ra ta c: C = 2

3 2= 2 =

1 + 3

2=2 + 2

2.

+ 2 ancol l CH3OH v C3H7OH (2 cht) c 2 cp cht.

+2 ancol l CH3OH v C3H6(OH)2 (2 cht) c 2 cp cht.

+2 ancol l CH3OH v C3H5(OH)3 c 1 cp cht.

+ 2 ancol l C2H5OH v C2H4(OH)2 c 1 cp cht.

Vy c tt c 6 cp cht tha mn bi.

Ch : Trong bi ta thy khi t chy vi s mol bng nhau ca 2 ancol th s nguyn t C trung bnh

bng trung bnh cng ca s C ca 2 ancol . Ta c th m rng cho cc hp chy hu c khc.

Cu 18: p n C

-Xt trong mt na dung dch Z.

Ta c: nNH4+ = nNH3 = 0,4704

22,4273 . (273 + 13,5)

= 0,02(mol)

nBaCO3 = nCO32 = nCO2 = 0,01 (mol) nSO42 = nBaSO4 = 4,3 0,01.197

233= 0,01 (mol)

p dng nh lut bo ton in tch ta c: nNa+ = 2nSO42 + 2nCO32 nNH4+ = 0,02 (mol).

Vy: m = 2.(2.0,02.23 + 0,02.18 + 0,01.96 + 0,01.60) = 4,76 (g).

Cu 19: p n D

Phn ng: 2Al + Fe2O3 Al2O3 + 2Fe

Mol: 2a a a 2a

Al, Al2O3 tan ht trong dung dch NaOH: 2Al + 2NaOH 2NaAlO2 + 3H2

Gi x, y l s mol ca Al v Fe2O3 c trong hn hp ban u v a l s mol Fe2O3 phn ng.

Suy ra: 27x + 160y = 12,67 (1)

Ta c: nAl(d) = 2

3nH2 x 2a = 0,06 (2)

Cht rn cn li sau phn ng c 2a mol Fe v y a mol Fe2O3

56.2a + 160. (y a) = 12,4 160y 48a = 12,4(3)

T (1), (2) v (3) suy ra a = 0,075; x = 0,21 v y = 0,1.

Hiu sut tnh theo Fe2O3: H% = 0,075

0,1. 100% = 75%.

Cu 20: p n A

Y lm xanh giy qu m nn Y c th l amin no hoc NH3. Z c kh nng lm mt mu dung dch nc

brom nn Z cha 1 lin kt i gc hidrocacbon ca mui.

Do X l CH2=CH-COONH3-CH3; CH2 = CHCH2COONH4; CH3CH=CH-COONH4 (cis trans);

CH2=C(CH3)-COONH4.

Vy c 3 cht tha mn.

Cu 21: p n C

A. Sai v axit axetic khng tc dng vi phenol.

B. Sai v andehit khng tc dng vi phenol.

D. Sai v dung dch NaCl khng tc dng vi phenol.

14 | L O V E B O O K . V N

Cu 22: p n C

Ta c C6H10O5 C6H12O6 2C2H5OH

162(kg) 92(kg)

Suy ra: VC2H5OH = 92.10

162.0,8.0,8

0,789.0,4= 11,516 (lt).

Cu 23: p n A

Cc cht cha lin kt cng ha tr (bao gm cng ha tr phn cc v cng ha tr khng phn cc) l:

H2S (1); SO2 (2); NH3 (5); HBr (6); H2SO4 (7); CO2 (8).

Cu 24: p n D

CH2 = C(CH3)CH2OH (X)+CuO CH2 = C(CH3) CHO

+O2 CH2 = C(CH3)COOH

+CH3OH CH2 = C(CH3)COOCH3.

Cu 25: p n B

p dng nh lut bo ton khi lng suy ra: nH2O = 15,2 + 0,3.40 23,6

18= 0,2 (mol)

Ta c: nNaOH: nH2O = 0,3: 0,2 = 3: 2 v v X tc dng vi dung dch NaOH ch to ra mui v nc nn

X c dng R COO C6H3(OH) R.

R COO C6H3(OH) R + 3NaOH RCOONa + R C6H3(ONa)2 + 2H2O

Theo phn ng: nX = 1

3nNaOH = 0,1(mol).

MX = 15,2

0,1= 152 suy ra: R + R + 136 = 152 R + R = 16 (H + CH3).

Vy X c cng thc phn t l C8H8O3.

Ch : Nh vo s nh gi bn trn ta c th a ra c dng ca X, khi s khng cn xt ti cc

d liu pha sau v bi lm s nhanh hn rt nhiu.

Cu 26: p n B

- Cho cc mu th tc dng vi nc Br2: propenol lm mt mu nc brom.

- Cho cc mu th cn li tc dng vi Cu(OH)2:

+ Mu th to ra dung dch mu xanh lam phenol.

+ Mu th to ra dung dch mu xanh thm c trng etilenglicol.

+ Mu th khng to ra hin tng g etanol.

Cu 27: p n B

Gi a, b ln lt l s mol ca NaI v NaBr c trong dung dch X.

Suy ra: 150a + 103b = x.

+ Dung dch X + Br2 d dung dch Y.

Dung dch Y cha (a + b) mol NaBr 103(a + b) = y.

+ Dung dch Y + Cl2 dung dch Z.

Dung dch Z cha (a+b) mol NaCl 58,5(a + b) = z.

Theo bi ra: 2y = x + z 2.103(a + b) = 150a + 103b + 58,5(a + b) b = 5

89a.

%mMg = 103b

103b + 150a=

103.589 a

103.589 a + 150a

. 100% = 3,7%.

Cu 28: p n C

Vi a = b + 0,5c Cc cht tham gia phn ng va vi nhau. Vy sau phn ng dung dch ch

cha mui Zn(NO3)2, kim loi thu c l Ag v Cu.

Cu 29: p n C

Gi x, y ln lt l s mol Cu, Fe c trong hn hp.

Dung dch X tc dng vi Mg to NO Cu v Fe tan ht.

Theo bi ra ta c: {64x + 56y = 6,082x + 3y = 0,08.3

{x = 0,06y = 0,04

Dung dch X cha HNO3 d, 0,06 mol Cu(NO3)2 v 0,04 mol Fe(NO3)3.


- Dung dch X + Mg: nMg = 0,12(mol).

Cc phn ng xy ra: 3Mg + 8HNO3 3Mg(NO3)2 + 2NO + 4H2O

0,03 0,03

Mg + 2Fe3+ Mg2+ + 2Fe2+

0,02 0,04

Mg + Cu2+ Mg2+ + Cu

0,06 0,06 0,06

Mg + Fe2+ Mg2+ + Fe

0,01 0,01 0,01

Sau phn ng: Mg ht v Fe2+ cn d. Cht rn cn li gm 0,06 mol Cu v 0,01 mol Fe.

Vy m = mCu + mFe = 0,06.64 + 0,01.56 = 4,4 (g).

Cu 30: p n B

Ancol cn tm l tc dng vi CuO to ra anehit nn ancol c dng RCH2OH.

Phn ng: RCH2OH + CuO RCHO + Cu + H2O

nCuO (phn ng) = nO (ly i) = 9,3 6,9

16= 0,15 (mol).

Suy ra: Mancol < 6,9

0,15= 46 suy ra ancol cn tm l CH3OH.

Vy nHCHO = 0,15 (mol) nAg = 4nHCHO = 0,6 mol mAg = 0,6.108 = 64,8(g).

Cu 31: p n B

nkh sau =mhn hp XMY

= 0,1.26 + 0,2.42 + 0,1.28 + 0,6.2

12,5.2= 0,6 (mol)

S mol kh gim i bng s mol H2 phn ng:

nH2(phn ng) = 0,1 + 0,2 + 0,1 + 0,6 0,6 = 0,4 (mol).

S lin kt cn li trong hn hp l: (0,1.2 + 0,2 + 0,1) 0,4 = 0,1 mol

nBr2 = n = 0,1 mol mBr2 = 0,1.160 = 16 (g).

Cu 32: p n D

Nhng th nghim ging nhau l (1) v (2): xut hin kt ta keo trng. Th nghim (3): xut hin kt

ta keo trng v tan dn khi HCl d.

Cu 33: p n C

X l 4,4-imetylpentan-2-ol.

Cu 34: p n D

Ch : Nhng cht khng th cng tn ti trong cng mt dung dch khi chng c kh nng phn ng

vi nhau.

Cu 35: p n C

nNaOH(phn ng) = 0,5 0,2 = 0,3 (mol). Ta thy: nY =1

3nNaOH nn Y l C3H5(OH)3.

Mui gm mui hu c v 0,2 mol NaCl.

Ta c: mrn = mNaCl +mhu c Mmui = 34,9 0,2.58,5

0,3= 77,33 X l (HCOO)C3H5(OOCCH3)2.

Cu 36: p n D

Gi nHCHO = x; nC3H4 = y mol.

HCHO AgNO3/NH3 4Ag v CH3C CH

AgNO3/NH3 CH3C CAg.

Ta c h: {30x + 40y = 9,6

108.4x + 147y = 73,89 {

x = 0,12y = 0,15

Khi cho kt ta tc dng vi dung dch HCl d: CH3C CAg + HCl CH3C CH + AgCl

Kt ta thu c sau phn ng gm 0,12 mol Ag v 0,15 mol AgCl.

Vy m = mAg + mAgCl = 0,1.108 + 0,15.143,5 = 73,365 (g).

Cu 37: p n D

Ta c: nY = 0,1 mol. t chy mt na Y thu c 0,1 mol CO2.

16 | L O V E B O O K . V N

Vy CY = 2.0,1

0,1= 2 suy ra Y l CH3 CH2 NH2. Vy X l HCOONH3 CH2 CH3.

Cu 38: p n B

S mol axit acrylic bng s mol axit propanic 1 C3H4O2 + 1 C3H6O2 = 1 C6H10O4.

Vy ta coi hn hp ch gm x mol axit adipic v y mol ancol etylic.

mX = 146x + 46y = 10,33.(1)

Do khi un nc lc Z cn thu c kt ta nn CaCO3 b ha tan mt phn, do ta c:

nCO2 = nOH nCaCO3 6x + 2y = 2.0,35 0,27 = 0,33.(2)

T (1) v (2) suy ra x = 0,055; y = 0,05 (mol).

X + dung dch KOH: HOOC (CH2)4 COOH + 2KOH KOOC (CH2)4 COOK + 2H2O

0,11 0,055

Vy sau phn ng, cht rn thu c gm:

0,12 0,11 = 0,01 mol KOH v 0,055 mol KOOC (CH2)4 COOK

m = mKOH + mmui = 0,01.56 + 0,055.222 = 12,77(g)

Cu 39: p n B

Ta c: nO(oxit) = 3,33 2,13

16= 0,075 mol; nHCl = 2nO = 0,15 (mol)

Suy ra: VHCl = 0,15

0,6= 0,25 (lt)

Cu 40: p n A

Cc cht khi nung to ra O2 l: KClO3 (xc tc MnO2); KMnO4; KNO3; AgNO3. C 4 cht tt c.

Cu 41: p n C

Ta c: C6H12O6 2C2H5OH

180kg 92kg

Khi lng glucoz cn dng l: mC6H12O6 = 100.0,8.180.0,1

92.0,95= 16,476 (kg).

Cu 42: p n D

Quy hn hp cho v hn hp gm: x mol FeO v y mol Fe2O3.

Theo bi ra ta c: {72x + 160y = 3,04nH2 = x + 3y = 0,05

{x = 0,02y = 0,01

X + dung dch H2SO4 c nng: Ch c FeO phn ng to SO2.

p dng nh lut bo ton electron ta c:

nSO2 = 1

2nFeO = 0,01 mol VSO2 = 0,01.22,4 = 0,224(lt).

Cu 43: p n D

A. Sai v Br c tnh kh mnh hn Cl (phng trnh th hai).

B. Sai v Fe2+ c tnh kh mnh hn Br (phng trnh th nht).

C. Sai v Cl2 c tnh oix ha mnh hn Br2 (phng trnh th hai).

Cu 44: p n D

nCu =10,24

64= 0,16(mol)

Nu dung dch thu c ch cha NaNO3 cht rn thu c sau phn ng ch c mui NaNO2.

2NaNO3to

2NaNO2 + O2

nNaNO2 =26,44

69= 0,383 < nNaOH suy ra loi.

+Vy cht rn sau phn ng cha NaOH d.

Gi {nNaOH = xnNaNO2 = y

{40x + 69y = 26,44

x + y = 0,4 {

x = 0,04y = 0,36

Vy s mol HNO3 phn ng vi Cu l: 0,6 0,04 = 0,56 (mol)

Cu 45: p n B

Cc cng thc cu to ng vi cng thc phn t C4H9Br:


CH3CH2CH2CH2Br; CH3CH2CHBrCH3; CH3CH(CH3)CH2Br; CH3C(Br)(CH3)CH3.

Cu 46: p n D

Cu 47: p n D

Gi x, y ln lt l s mol ca CH3OH v RCH2OH.

Phn 1: nH2 = x + y

2= 0,015 x + y = 0,03 (1)

Phn 2: CH3OH HCHO 4Ag

x 4x

RCH2OH RCHO 2Ag

y 2y

nAg = 4x + 2y = 0,1 (2)

T (1) v (2) suy ra x = 0,02 v y = 0,01.

Cu 48: p n C

Gi x, y ln lt l s mol ca Al v Al4C3. Phn ng: Al + KOH + H2O KAlO2 + 1,5H2

x x 1,5x Al4C3 + 4KOH + 4H2O 4KAlO2 + 3CH4y 4y 3y

Sc CO2 ti d vo dung dch: KAlO2 + CO2 + 2H2O KHCO3 + Al(OH)3

Theo bi ra ta c: {x + y = 0,3

x + 4y = 46,8

78

{ = 0,2 = 0,1

. nkh = 1,5 + 3 = 0,6 ().

Cu 49: p n A

Cc phng trnh: (1); (2); (3); (6) c cng phng trnh ion: Ca2+ + SO42 CaSO4

Cu 50: p n A

Thy phn peptit trn th thu c 3 mui ca cc aminoaxit:

CH3CH(NH2)COOH; H2N CH2COOH;H2N(C6H5)CH COOH.

Cu 51: p n B

ECu Ag = ECu2+ Cu0 + EAg+ Ag

0 = ECu2+ Cu0 + EZn2+ Zn

0 EZn2+ Zn0 + EAg+ Ag

0

= EZnCu0 EZn2+ Zn

0 + EAg+ Ag0 = 1,1 + 0,76 + 0,8 = +0,46

Cu 52: p n A

(1) Sai v trong cng nghip ngi ta iu ch cht bo t m ng vt v du ca cc ht.

(5) Sai v amiloz l mt dng tinh bt nn khng dng sn xut t si dt vi.

(6) Sai v cc amino axit c s nhm NH2 bng s nhm COOH khng lm i mu qu tm.

(7) Sai v ch c tripeptit tr ln mi c phn ng mu biure vi Cu(OH)2.

Cu 53: p n A

Cu 54: p n C

C6H5OH (CH3CO)2O(X) Phenyl axetat

+NaOH (d),t0

C6H5ONa (Y).

Cu 55: p n A

Cu 56: p n B

Ta c: CuS +O2 CuO

+NH3 Cu

+HNO3 NO

nCuS = m (m 4,8)

32 16= 0,3 (mol) mCuS = 0,3.96 = 28,8(g).

p dng nh lut bo ton e ta c: nNO = 2

3nCu = 0,2 (mol) VNO = 0,2.22,4 = 4,48 (l)

Cu 57: p n C

Ta c: nCO2 = 7,84

22,4= 0,35 (mol); nH2O =

9,9

18= 0,55 (mol).

p dng nh lut bo ton nguyn t O ta c:

nO2 = nCO2 + 1

2nH2O = 0,625 nkk = 5nO2 = 3,125 (mol) Vkk = 3,125.22,4 = 70(lt)

Cu 58: p n D

Gi ipeptit l H2NRCO-NH-RCOOH.

H2NRCO-NH-RCOOH + H2O H2N-R-COOH + H2N-R-COOH.

18 | L O V E B O O K . V N

Ta c: nH2O = 159 150

18= 0,5 (mol).

H2N R COOH + HCl ClH3N R COOH

nHCl = namino axit = 1

10= 0,1 (mol)

p dng nh lut bo ton ta c: mmui = mamino axit + mHCl = 15,9 + 0,1.36,5 = 19,55(g).

Cu 59: p n B

Phn ng: CH3COOH CH3COO + H+

Ban u: 1 0,1

in ly: x x x

Cn bng: 1- x 0,1- x x

Ta c: Ka = (0,1 x). x

1 x= 104,76

Gi s x


s 2

I. PHN CHUNG CHO TT C TH SINH (40 cu, t cu 1 n cu 40)

Cu 1: Cho cc cht: NaHSO3; NaHCO3; KHS; NH4Cl; AlCl3; CH3COONH4, Al2O3, Zn, ZnO, NaHSO4. S cht

lng tnh l

A. 8. B. 6. C. 7. D. 5.

Cu 2: Thc hin cc th nghim sau:

(a) Nung NH4NO3 rn. (b) un nng NaCl tinh th vi dung dch H2SO4 (c).

(c) Cho CaOCl2 vo dung dch HCl c. (d) Sc kh CO2 vo dung dch Ca(OH)2 (d).

(e) Sc kh SO2 vo dung dch KMnO4. (g) Cho dung dch KHSO4 vo dung dch NaHCO3.

(h) Cho ZnS vo dung dch HCl (long). (i) Cho Na2CO3 vo dung dch Fe2(SO4)3.

S th nghim sinh ra cht kh l

A. 4. B. 5. C. 2. D. 6.

Cu 3: C 5 kim loi: Mg, Ba, Zn, Fe, Ag. Nu ch dng thm 1 cht th c th dng cht no trong s cc cht

cho di y nhn bit cc kim loi l

A. dung dch H2SO4 long. B. dung dch Ca(OH)2.

C. dung dch NaOH. D. dung dch FeSO4.

Cu 4: Hn hp A gm CH4, C2H4, C3H4. Nu cho 26,8 gam hn hp X tc dng vi dung dch AgNO3/NH3 d

th thu c 29,4 gam kt ta. Nu cho 8,4 lt hn hp X (ktc) tc dng vi dung dch brom th thy c 54

gam brom phn ng. % th tch CH4 trong hn hp X l

A. 40%. B. 25%. C. 35%. D. 30%.

Cu 5: Ho tan ht m gam Al2(SO4)3 vo nc c dung dch X. Cho 360 ml dung dch NaOH 1M vo X, thu

c 2a gam kt ta. Mc khc, nu cho 400 ml dung dch NaOH 1M vo X th thu c a gam kt ta. Cc phn

ng xy ra hon ton, gi tr ca m l:

A. 20,520. B. 19,665 C. 15,390. D. 18,810.

Cu 6: Cho propan qua xc tc ( nhit cao) thu c hn hp X gm C3H8, C3H4, C3H6 v H2. T khi ca

X so vi H2 bng d. Nu cho 6,16 lt X (ktc) vo dung dch brom (d) thy c 24 gam brom phn ng. Gi tr

ca d bng

A. 10. B. 15. C. 12. D. 8.

Cu 7: Hp cht hu c X tc dng c vi dung dch KOH v dung dch brom nhng khng tc dng vi

dung dch KHCO3. Tn gi ca X l

A. ancol benzylic. B. axit acrylic. C. anilin. D. vinyl axetat.

Cu 8: Cho cc phn ng:

(1). O3 + dung dch KI (6). F2 + H2O t0

(2). MnO2 + HCl c t0 (7). NH3(d) + Cl2

(3). KClO3 + HCl c t0 (8). HF + SiO2

(4) Dung dch HCl c + FeS2 (9). C2H5NH2 + NaNO2 + HCl

(5). NH3(kh) + CuO t0

S trng hp to ra n cht l

A. 5. B. 8. C. 7. D. 6.

Cu 9: t chy hon ton 2,24 lt (ktc) hn hp kh gm: CH4, C2H4, C2H6, C3H8 thu c 6,16 gam CO2 v

4,14 gam H2O. S mol C2H4 trong hn hp trn l


Cu 10: Ho tan Fe3O4 trong lng d dung dch H2SO4 long thu c dung dch X. Dung dch X tc dng

c vi bao nhiu cht trong s cc cht sau: Cu,NaOH,Br2, AgNO3, KMnO4, MgSO4, Mg(NO3)2, Al, H2S?

A. 5. B. 8. C. 6. D. 7.

Cu 11: Cho 9 gam axit axetic phn ng vi 13,8 gam ancol etylic (xc tc H2SO4 c), un nng, thu c

8,25 gam etyl axetat. Hiu sut ca phn ng este ho l

20 | L O V E B O O K . V N

A. 50,00%. B. 62,50%. C. 40,00%. D. 31,25%.

Cu 12: Nung nng hn hp bt 0,1 mol Al; 0,2 mol Fe; 0,1 mol Zn; 0,3 mol S trong bnh kn. Sau mt thi gian

thu c hn hp cht rn X. Ha tan X trong dd HCl d thu c V lt kh Y (ktc). Gi tr ca V l

A. 10,08. B. 4,48. C. 6,72. D. 3,36.

Cu 13: Cc nguyn t thuc nhm IA, theo chiu in tch ht nhn tng dn th

A. bn knh nguyn t tng dn. B. nng lng ion ha tng dn.

C. tnh kh gim dn. D. m in tng dn.

Cu 14: T CH4 ngi ta iu ch PE theo s sau:

CH4 C2H2 C2H4 PE

Gi s hiu sut ca mi phn ng u bng 80% th th tch CH4 (ktc) cn dng iu ch c 5,6 tn PE

l

A. 17500 m3. B. 3600,0 m3. C. 32626m3. D. 22400 m3.

Cu 15: Cho hn hp Fe3O4 v Cu vo dung dch HCl d. Sau khi phn ng xy ra hon ton ngi ta thu c

dung dch X v cht rn Y. Nh vy trong dung dch X c cha:

A. HCl, FeCl2, FeCl3. B. HCl, FeCl3, CuCl2. C. HCl, CuCl2, FeCl2. D. HCl, CuCl2.

Cu 16: Cho cc cht: CH3CH2OH, C2H6, CH3OH, CH3CHO, C6H12O6, C4H10, C2H5Cl. S cht c th iu ch trc

tip ra axit axetic (bng 1 phn ng) l

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

Cu 17: Cho hn hp X gm 2 amin n chc l ng ng k tip nhau tc dng va vi dung dch HCl

thu c 14,2 gam hn hp mui. Cho hn hp mui d vo dung dch AgNO3 d thu c 28,7gam kt ta.

Hy cho bit cng thc phn t ca cc cht trong hn hp X

A. CH5N v C3H9N B. C2H7N v C3H9N C. CH5N v C2H7N D. C3H9N v C4H11N

Cu 18: Dy gm cc kim loi u tc dng c vi dung dch Fe(NO3)3 l:

A. Cu, Ag, Au, Mg, Fe. B. Fe, Mg, Cu, Ag, Al. C. Fe, Zn, Cu, Al, Mg. D. Au, Cu, Al, Mg, Zn.

Cu 19: Chia m gam hn hp M gm hai ancol n chc k tip trong dy ng ng thnh 2 phn bng nhau.

Cho phn mt tc dng vi Na (d), c 3,36 lt kh hiro (ktc). Cho phn hai phn ng hon ton vi CuO

nhit cao, c hn hp 1 cha hai anehit (ancol ch to thnh anehit). Ton b lng 1 phn ng

ht vi AgNO3 trong NH3, thu c 86,4 gam Ag. Gi tr ca m l


Cu 20: Cho cc pht biu di y

1. Cc halogen (F, Cl, Br, I) u c s oxi ho t -1 n +7

2. F2 l cht ch c tnh oxi ho

3. F2 y c Cl2 ra khi dung dch mui NaCl

4. Tnh axit ca cc axit halogenhiric tng theo th t: HF, HCl, HBr, HI

Cc pht biu ng l

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

Cu 21: Cho cc cht sau y: HNO2, Br2, SO2, N2, F2, H2O2, CrCl3, S. S cht c c tnh oxi ha v tnh kh l

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

Cu 22: Cho bt Fe vo dung dch hn hp NaNO3 v H2SO4 n phn ng hon ton thu c dung dch A

(khng cha mui amoni), hn hp kh X gm NO, H2 v c cht rn khng tan. Trong dung dch A cha cc

mui:

A. FeSO4, Na2SO4. B. FeSO4, Fe(NO3)2, Na2SO4.

C. FeSO4, Fe(NO3)2, Na2SO4, NaNO3. D. FeSO4, Fe2(SO4)3, NaNO3, Na2SO4.


TN1: Cho rt t t dung dch Na2CO3 vo dung dch AlCl3.

TN2: Cho rt t t dung dch cha 0,1mol HCl n ht vo dung dch cha 0,1 mol Na2CO3 v 0,1 mol NaHCO3

.

TN3: Cho dung dch NaHSO4 vo dung dch Ca(HCO3)2

S th nghim c gii phng kh CO2 l

A. 0. B. 3. C. . 2. D. 1.


Cu 24: Ho tan hon ton m gam Fe trong dung dch HNO3 thy c 0,3 mol kh NO2 (sn phm kh duy nht)

thot ra, nh tip dung dch HCl va vo li thy c 0,02 mol kh NO (sn phm kh duy nht) bay ra. C

cn dung dch sau phn ng thu c cht rn c khi lng l

A. 26,92 g. B. 19,50 g. C. 24,27 g. D. 29,64 g.

Cu 25: Cho 100 ml dung dch Ba(OH)2 0,8M vo 200 ml dung dch cha Na2SO4 0,2M v FeSO4 xM thu c

24,04 gam kt ta. Gi tr ca x l

A. 0,15M . B. 0,30M. C. 0,60M . D. 0,45M.

Cu 26: t chy hon ton m gam hn hp X gm hai este ng phn ca nhau cn dng 0,525 mol O2 v thu

c 0,45 mol CO2, 0,45 mol H2O. Nu cho m gam X tc dng ht vi 0,2 mol NaOH, ri c cn dung dch to

thnh cn li 12,9 gam cht rn khan. Phn trm khi lng ca este c s nguyn t cacbon trong gc axit

nh hn trong X l

A. 33,33. B. 66,67. C. 60,00. D. 50,00.

Cu 27: X v Y l 2 ng phn ca nhau. X, Y tc dng vi NaOH theo phng trnh sau

X + NaOH C2H4O2NNa + CH4O

Y + NaOH C3H3O2Na + Z + H2O.

Z l cht no di y

A. H2. B. CH3NH2 . C. NH3. D. CH3OH.

Cu 28: t chy hon ton m gam cacbohirat cn 13,44 lt O2 (ktc) sau em hp th hon ton sn phm

chy trong 200 ml dung dch cha ng thi NaOH 1,75M v Ba(OH)2 1M thu c kt ta c khi lng l


Cu 29: Phenol phn ng c vi bao nhiu cht trong s cc cht sau: NaOH, HCl, Br2,

(CH3CO)2O, CH3COOH, Na, NaHCO3, CH3CH2OH?

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

Cu 30: C bao nhiu cht c th phn ng vi axit fomic trong s cc cht sau: KOH, NH3, CaO, Mg, Cu, Na2CO3,

Na2SO4, CH3OH, C6H5OH, dd Br2, AgNO3/NH3?

A. 8. B. 9. C. 7. D. 6.

Cu 31: Clo ho mt hirocacbon trong iu kin thch hp thu c 2 cht cng c cng thc phn t l

C2H4Cl2. Hirocacbon l

A. etilen. B. etilen hoc etan. C. axetilen. D. etan.

Cu 32: Trung ha 28 gam mt cht bo cn dng 20 ml dung dch NaOH 0,175M. Ch s axit ca cht bo l

A. 9. B. 8. C. 7. D. 6.

Cu 33: Cho 4 pht biu sau:

-Vi ti c th hy c brom c. - Kh clo nguyn cht c kh nng ty trng.

-CO2 rn bo qun thc phm an ton. - Kh CO2 gy ra hin tng ma axit.

S pht biu ng l

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

Cu 34: C 8 cht: phenyl clorua, benzyl clorua, axetilen, propin, but-2-in, anehit axetic, glucoz, saccaroz,

propyl fomat. Trong cc cht , c bao nhiu cht tc dng c vi dung dch AgNO3 trong NH3 d to thnh

kt ta?

A. 8. B. 7. C. 6. D. 5.

Cu 35: Cho dung dch HCl ln lt tc dng vi: NaHS, K2CO3, CuS, FeS, Ag2S, Fe, Cu, Fe(NO3)2. S th nghim

xy ra phn ng ha hc l

A. 6. B. 5. C. 8. D. 7.

Cu 36: Cho m gam Mg vo 400 ml dung dch X cha FeCl3 0,3M v CuSO4 0,5M. Sau khi phn ng xy ra hon

ton thu c 2,56 gam cht rn. Gi tr ca m l

A. 2,88. B. 2,16. C. 2,40. D. 0,96

Cu 37: Cho 10 gam cht X (ch cha nhm chc este c phn t khi l 100 vC) tc dng vi 150 ml dung

dch NaOH 1M. Sau phn ng, c cn dung dch thu c 11,6gam cht rn khan v mt cht hu c Y. Cng

thc ca Y l

A. CH3OH. B. C2H5OH. C. CH3CHO. D. CH3COCH3.

Cu 38: Dung dch Y gm Al3+; Fe2+; 0,05 mol Na+; 0,1 mol SO4 2; 0,15 mol Cl. Cho V lit dung dch NaOH 1M,

vo dung dchY thu c kt ta ln nht th gi tr V l

22 | L O V E B O O K . V N

A. 0,30. B. 0,25. C. 0,40. D. 0,35.


(1) t dy st trong kh clo.

(2) t nng hn hp bt Fe v S (trong iu kin khng c oxi).

(3) Cho FeO vo dung dch HNO3 (long, d).

(4) Cho Fe vo dung dch Fe2(SO4)3 .

(5) Cho Fe vo dung dch H2SO4 (long, d).

C bao nhiu th nghim to ra mui st (II)?

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

Cu 40: Hn hp X gm C3H8, C2H4(OH)2 v mt s ancol no, n chc, mch h (trong C3H8 v C2H4(OH)2

c s mol bng nhau). t chy hon ton 5,444 gam X ri hp th ton b sn phm chy vo dung dch

Ba(OH)2 d thy khi lng bnh tng ln 16,58 gam v xut hin m gam kt ta. Gi tr ca m l

A. 42,158. B. 43,931. C. 47,477. D. 45,704.

II. PHN RING [10 cu] Th sinh ch c lm mt trong hai phn (phn A hoc B)

A. Theo chng trnh Chun (10 cu, t cu 41 n cu 50)

Cu 41: Cho cc polime: polietilen, poli(vinylclorua), caosu buna, Polistiren, amiloz, amilopectin, xenluloz,

nha novolac, t nilon-6. S polime c cu to mch khng nhnh l

A. 8. B. 6. C. 7. D. 9.

Cu 42: Hn hp A gm anehit X, xeton Y (Y c s nguyn t cacbon bng X) v anken Z. t chy hon ton

m gam hn hp A cn 17,696 lt O2 (ktc) sinh ra 12,992 lt CO2 (ktc) v 10,44 gam H2O. Tn gi ca X l

A. Etanal B. Etandial C. metanal D. Propanal

Cu 43: Cho Cu vo dung dch FeCl3; H2S vo dung dch CuSO4; HI vo dung dch FeCl3; dung dch AgNO3 vo

dung dch Fe(NO3)3; dung dch NaHSO4 vo dung dch Fe(NO3)2. S trng hp xy ra phn ng l

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

Cu 44: Oxi ha 2m gam ancol no, n chc, bc 1 bng oxi khng kh trong iu kin thch hp th thu c

3m gam hn hp X gm anehit, axit v nc. Cng thc ca ancol trn l

A. CH3OH hoc C2H5OH. B. CH3OH. C. C2H5OH. D. C2H5OH hoc C3H7OH

Cu 45: Cho s phn ng sau: Este X + NaOH CH3COONa + cht hu c Y.

Y + O2 xt Y1 ; Y1 + NaOH CH3COONa + H2O. Hy cho bit bao nhiu cht X tha mn s trn?

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

Cu 46: Khi nhit phn cc cht sau: KNO3, KMnO4, NH4NO3, H2O2, Fe(OH)3, NH4HCO3, CaCO3, KClO3. S phn

ng oxi ho kh l

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

Cu 47: Cho x gam P2O5 tc dng ht vi 338 ml dung dch NaOH 2M. C cn dung dch sau phn ng thu c

3x gam cht rn. Gi tr ca x l

A. 14,2. B. 12,78. C. 11,36. D. 17,04.

Cu 48: Cho cc th nghim sau

Sc SO2 vo dung dch BaCl2 d (1). Cho SO3 vo dung dch Ba(OH)2 d (2).

Cho dung dch KOH vo dung dch Ba(HCO3)2 (3) Cho dung dch H2S vo dung dch ZnCl2 (4)

Cho NH3 d vo dung dch AlCl3 (5)

S th nghim thu c kt ta l

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

Cu 49: Hn hp M gm hai aminoaxit X v Y u cha mt nhm COOH v mt nhm NH2 (t l mol 3 :2).

Cho 17,24 gam M tc dng ht vi 110 ml dung dch HCl 2M thu c dung dch Z. tc dng ht vi cc cht

trong Z cn 140 ml dung dch KOH 3M. Cng thc cu to ca X, Y ln lt l

A. H2NCH2COOH v H2NC4H8COOH. B. H2NCH2COOH v H2NC3H6COOH.

C. H2NC2H4COOH v H2NC3H6COOH. D. H2NCH2COOH v H2NC2H4COOH.

Cu 50: Hn hp X gm SO2 v O2 c t khi hi so vi H2 l 24. Cho hn hp X (ktc) i qua bnh cha V2O5

nung nng. Hn hp thu c sau phn ng c t khi so vi H2 l 30. Hiu sut ca phn ng gia SO2 vi O2

l

A. 20%. B. 60%. C. 40%. D. 80%.


B. Theo chng trnh Nng cao (10 cu, t cu 51 n cu 60)

Cu 51: Chn pht biu sai

A. C th phn bit dung dch CrCl3 v AlCl3 bng dung dch NaOH.

B. Photpho bc chy khi tip xc vi CrO3.

C. Trong mi trng axit, Zn kh Cr3+ thnh Cr.

D. Trong mi trng kim, Br2 oxi ha Cr3+ thnh CrO4

2.

Cu 52: Khi pin in ha Zn- Ag phng in c cu mui NH4Cl th

A. ion NH4+ di chuyn v in cc Zn v ion Cl di chuyn v in cc Zn.

B. ion NH4+ di chuyn v in cc Zn v ion Cl di chuyn v in cc Ag.

C. ion NH4+ di chuyn v in cc Ag v ion Cl di chuyn v in cc Zn.

D. ion NH4+ di chuyn v in cc Ag v ion Cl di chuyn v in cc Ag.

Cu 53: t chy hon ton m gam hn hp X gm ancol etylic, axetanehit, metyl fomat thu c 0,1 mol

CO2 v 0,13 mol H2O. Cho m gam X trn vo 1 lng d dd AgNO3 trong NH3 thu c a gam kt ta. Gi tr

ca a l

A. 4,32 B. 1,08 C. 10,08 D. 2,16

Cu 54: Hirat ha 3,36 lt axetilen (ktc) thu c hn hp A gm hai cht hu c( hiu sut phn ng 60%

tnh theo C2H2). Cho ton b A trn vo bnh ng lng d nc brom th s mol brom phn ng l

A. 0,21. B. 0,15. C. 0,09. D. 0,06.

Cu 55: Cho dy cc cht: Si, CrO3, Zn, Pb, Cr, Al, Sn. S cht trong dy tan c trong dung dch NaOH c, un

nng l

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

Cu 56: Cho cc dung dch c cng nng mol sau: NH4Cl (1), NaCl (2), NaF (3), HCl (4). Th t cc dung

dch c gi tr pH tng dn l

A. (1)

24 | L O V E B O O K . V N

GII CHI TIT V BNH LUN

Cu 1: p n B

NaHSO3, NaHCO3, NaKHS, CH3COONH4, Al2O3, Zn

Cu 2: p n D

a) NH4NO3N2O+ 2H2O

b) NaClr +H2SO4NaHSO4 + HCl

c) CaOCl2 + 2HCl Cl2 +CaCl2 + H2O

g)2KHSO4 + 2NaHCO3K2SO4 + Na2SO4 + 2CO2 +2H2O

h)ZnS + 2HCl ZnCl2 + H2S

i)3Na2CO3 + Fe2(SO3)3 + 3 H2O 2Fe(OH)3 + 3Na2SO4 + 3CO2

Cu 3: p n A

Dng dung dch H2SO4 th:

To ra kt ta v c kh bay ra l Ba

Ba + H2S BaSO4 +H2 ()

Khng c kh bay ra l Ag

Mg, Zn, Fe u khng c hin tng kh bay ra thu c cc dung dch:

Mg + H2SO4MgSO4 + H2

Zn + H2SO4 ZnSO4 + H2

Fe + H2SO4 FeSO4 + H2

Sau phn ng () , Ba cn d:

Ba + 2H2O Ba(OH)2 + H2

Dng dung dch Ba(OH)2 th vo cc dung dch mui ca Mg, Fe, Zn

Kt ta xut hin v tan sau l Zn

ZnSO4 + Ba(OH)2 BaSO4 +Zn(OH)2

Zn(OH)2 + Ba(OH)2 BaZnO2 + 2H2O

Kt ta ha nu trong khng kh l Fe

FeSO4 + Ba(OH)2 Fe(OH)2 +BaSO4

2Fe(OH)2 +1

2O2 + H2O 2Fe (OH)3

Cu 4: p n D

nX(trong 8,4 g hn hp) = 0,375(mol)

Trong 8,4 g hn hp c {x mol CH4y mol C2H4z mol C3H4

x+ y + z = 0,375 (1)

nBa phn ng = 0,3375 = y + 2z (2)

Trong 26,8 g hn hp X c {kx mol CH4ky mol C2H4kz mol C3H4

k(16x + 28y + 40z) = 26,8 (1)

nC3H4 = nC3H3Ag =294

147= 0,2(2)

T (1) v (2) 0,2. (16x + 28y + 40z) = 26,8z(3)

Gii h {

(1)(2)(3)

{x = 0,1125y = 0,1875z = 0,075

. Vy %VCH4(X) =0,1125

0,375. 100% = 30%

Cu 5: p n D

nNaOH(1) = 0,36(mol); nNaOH(2) = 0,4(mol)

TH1: Th nghim u Al(OH)3 cha b ha tan() nAl(OH)3 =1

3nNaOH = 0,12(mol)

nAl(OH)3(TH2) = 0,06 mol

TN2 th Al(OH)3b ha tan

nAl(OH)3 = 8nAl2(SO4)3 nNaOH nAl2(SO4)3 = 0,0525(mol)(khng tha mn ())


TH2: Al(OH)3b tanmt phn 2 phn ng

Gi {nAl2(SO4)3 = x

nAl(OH)3(1) = 2y nAl(OH)3(2) = y c {

2y = 8x 0,36y = 8x 0,4

{y = 0,4x = 0,55

m = 18,81

Cu 6: p n A

nBr2 = 0,15 (mol) = nlinkt = nH2

(v c mi H2 c tch ra sau phn ng hiro th c 1 lin kt )

nhn hp =6,16

22,4= 0,275 (mol) nC3Hx = 0,275 0,15 = 0,125 = nC3H8

d =m

n=mC3H8nx

=0,125.44

0,275= 20 d =

20

2= 10

Cu 7: p n D

Cu 8: p n B

(1)O3 + 2KI + H2O 2KOH + O2 + I2 (5)2NH3 + 3CuO to

N2 + 3Cu + 3H2O

(2)MnO2 + 4HClto

MnCl2 + Cl2 + 2H2O (6)2F2 + 2H2O 4HF + O2

(3)KClO3 + 6HClKCl + 3Cl2 + 3H2O (7)8NH3(d) + 3Cl2N2 + 6NH4Cl

(4)2HCl + FeS2 FeCl2 + H2S + S (8)C2H5NO2 + HCl + NaNO2to

C2H4O3 + N2 + H2O

Cu 9: p n C

nCO2 = 0,14 mol, nH2O = 0,23 mol

nankan = nH2O nCO2 = 0,09 (mol). M nhn hp = 0,1 nC2H4 = 0,01(mol)

Cu 10: p n B

Fe3O4 + 4H2SO4(d) FeSO4 + Fe2(SO4)3 + 4H2O

Dung dch X( FeSO4, Fe2(SO4)3, H2SO4) phn ng c vi: Cu,NaOH,Br2, AgNO3,, KMnO4, Mg(NO3)2, Al, H2S

Cu 11: p n B

nCH3COOH = 0,15 mol, C2H5OH = 0,3 mol

neste l thuyt = 0,15 (mol),m neste thc t = 0,09375 mol H =0,09375

0,15. 100% = 62,5%

Cu 12: p n A

Ton b qu trnh:

{ne cho = 3.0,1 + 0,2.2 + 0,1.22ne nhn = 2nH2S + 2nH2

nH2S + nH2 = 0,9 V = 10,08 (l)

Cu 13: p n A

Cu 14: p n A

nmt xch =5,6.106

28= 2.105(mol)

nCH4 = 2nmt xch (bo ton C)

Do H = 0,8 mi phn ng nCH4(thc t ) = 2.nmt xch0,83

= 17,5.106(l) = 17500 m3

Cu 15: p n C

Fe3O4 + 8HCl FeCl2 + 2FeCl3 + 4H2O

2FeCl3 + Cu 2FeCl2 + CuCl2

Sau phn ng thu c cht rn Y (Cu) FeCl3ht, dung dch X (FeCl2, CuCl2, HCl d)

Cu 16: p n D

CH3CH2OH+ O2xt,to

CH3COOH + H2O CH3OH+ COxt,t0

CH3COOH

CH3CHO + O2to

CH3COOH 2C4H10 + 5O2to ,xt 4CH3COOH+ 2H2OS

Cu 17: p n C

nAgCl = 0,2mol = nHCl = nX mhn hp X = mmui mHCl = 6,9 (g)

X =6,9

0,2= 34,5 2 amin l CH5N, C2H7N

Cu 18: p n C

Cu 19: p n B

26 | L O V E B O O K . V N

nH2 = 0,15 (mol) nancol = 0,3 mol

nAg = 0,8 > 2nancol 2 ancol l {CH3OH:

0,8 0.2.2

2= 0,1(mol)

C2H5OH:0,2 (mol) m = 2(0,1.32 + 0,2.46)

= 24,8(g)

Cu 20: p n C

Cu 21: p n A

HNO2, Br2, N2, H2O2, CrCl3, S

Cu 22: p n A

Sau phn ng cn li cht rn nn sinh ra mui Fe (II) v H+, NO3 ht cn FeSO4, Na2SO4

Cu 23: p n C

TN1: 3Na2CO3 + 2AlCl3 + 3H2O 6NaCl + 2Al(OH)3 + 3CO2

TN2: HCl + Na2CO3NaHCO3 +NaCl

0,1 0,1

Phn ng va khng to ra CO2

TN3: 2NaHSO4 + Ca(HCO3)2Na2SO4 + CaSO4 + 2 CO2 + 2H2O

Cu 24: p n A

Phn ng 1: nNO2 = 0,3 mol nNO3(mui ) = 0,3(mol)

Phn ng 2: nNO = 0,02 < nNO3(mui ) nNO3 trong mui cn li: 0,3 0,02 = 0,28

Fe y ln ht ha tr III

3nFe = nNO2 + 3nNO nFe = 0,12(mol)

Ta c: 3nFe3+ = nNO3 + nCl nCl = 0,08(mol). Vy mmui = 0,12.56 + 0,08.35,5 + 0,28.62

Cu 25: p n C

{

nBa(OH)2 = 0,08 mol

nSO42 = 0,04 + 2x

nFe2+ = 0,2 mol

mol

TH1: Ba2+ kt ta ht thnh BaSO4 (nSO42 nBa2+)

24,04 = 0,08.233 + 0,2x. 90 x = 0,3 (tha mn) chn ngay p n C

(TH2: Ba2+ cha to kt ta, khng tha mn)

Cu 26: p n B

nCO2 = nH2O este no n chc mch h

Bo ton O ta c: 2. neste + 2nO2 = 2nCO2 + nH2O neste = 0,15 C =0,45

0,15= 3

{CH3COOCH3: x molHCOOCH3: y mol

c {x + y = 0,15 nNaOH d = 0,0582x + 68y = 12,9 0,05.40

{x = 0,05y = 0,1

%mHCOOC2H5 = 66,67%

Cu 27: p n C

X l H2NCH2COOCH3, Y l CH2CHCOONH4

CH2CHCOONH4 + NaOH CH2CHCOONa + NH3 + H2O

Cu 28: p n D

Cacbonhirat Cn(H2O)m

nO2 = 0,6 mol = nCO2; nOH = 0,75 mol, nBa2+ = 0,2 mol

nCO32 = nOH nCO2 = 0,15 mol nBaCO3 = nCO32 = 0,15 mBaCO3 = 29,55 g

Cu 29: p n A

NaOH,Br2, (CH3CO)2O,Na

Cu 30: p n A

KOH,NH3, CaO,Mg, Na2CO3, CH3OH, dd Br2, AgNO3 NH3

Cu 31: p n D

Cu 32: p n C

nNaOH = 0,0035 (mol) ch s axit bng 0,0035.56

28. 103 = 7


Cu 33: p n B

Cc pht biu ng gm: {Vi ti c th hy c brom c

CO2 rn bo qun thc phm an ton

Cu 34: p n D

Axetilen, propin, anehit axetic, glucoz, propyl fomat

Cu 35: p n B

NaHS, K2CO3, FeS, Fe, Fe(NO3)2

Cu 36: p n C

nFeCl3 = 0,12 mol; nCuSO4 = 0,2 mol

2FeCl3 +Mg 2FeCl2 +MgCl2

0,12 0,06 0,12

nu CuSO4phn ng ht th nCu = 0,2.64 = 12,8 > 2,56

nCu phn ng =2,56

64= 0,04 = nMg phn ng vi Cu2+ m = (0,04 + 0,06). 24 = 2,4g

Cu 37: p n C

nY = 0,1 mol; bo ton khi lng:mY = 10 + 0,15.40 11,6 = 4,4 Y = 44(CH3CHO)

Cu 38: p n A

Ta c 3nAl3+ + 2nFe2+ + 0,05 = 0,1.2 + 0,15 3 nAl3+ + 2nFe2+ = 0,3 = nOH

Cu 39: p n B

(2), (4), (5)

Cu 40: p n D

C3H8, C2H4(OH)2 c s mol bng nhau

nn c cng thc chung l C2,5H7O (tng t 1 ancol no mch h)

Hn hp X c cng thc chung CnH2n+2O

Phng trnh: CnH2n+2O +3n

2O2

t nCO2 + (n + 1)H2O

nCO2 =nO21,5

;m nO2 =16,58 5,444

32= 0,348 nCO2 = 0,232 = nBaCO3

mBaCO3 = 45,704(g)

Cu 41: p n A

Polietilen, poli(vinylclorua), caosu buna, polistiren, amiloz, xenluloz, novolac, nilon-6

Cu 42: p n D

Y c s C bng X m Y l xtn nn c s C t nht l 3 suy ra ch c D l hp l

Cu 43: p n D

Cu + 2FeCl3 2FeCl2 + CuCl2 HI + FeCl3 FeCl2 +1

2I2 + HCl

H2S + CuSO4 CuS +H2SO4 3Fe2+ + 4H+ + NO3

3Fe3+ + NO+ 2H2O

Cu 44: p n D

mO2 = mX mancol = m nO2 =m

32

Nu ancol chuyn ht v axit nancol = nO2 =m

32 Mancol = 64

Nu ancol chuyn ht v anehit nancol = 2nO2 =m

16 Mancol = 32

M hn hp gm axit v anehit nn 64 > Mancol > 32

cc ancol tha mn: C2H5OH, C3H7OH

Cu 45: p n C

CH3COOC2H5, CH3COOC2H3

Cu 46: p n B

KNO3, KMnO4, NH4NO3, H2O2, KClO3

Cu 47: p n C

Tx

142mol P2O5

x

71mol NayH3yPO4. M 3x =

x

71(23y + 3 y + 95) y = 5,27 > 3

28 | L O V E B O O K . V N

3x (g)cht rn gm {0,678

3x

71 (mol) NaOH d

x

71(mol)Na3PO4

3x =x

71. 164 + (0,678

3x

71) . 40

x = 11,36

Cu 48: p n D

(2), (3), (5)

Cu 49: p n B

nHCl = 0,22, nNaOH = 0,42 nM = 0,42 0,22 = 0,2 mol nX = 0,12 mol, nY = 0,08 mol

M = 86,2 mt aminoaxit l H2NCH2COOH, c th l X hoc Y

Tnh theo khi lng tm c p n B

Cu 50: p n D

dX H2 = 24 nSO2nO2

= 1 H s tnh theo SO2

Gi s ban u {1 mol SO21 mol O2

sau phn ng thu c2.24

30= 1,6 mol kh nO2phn ng = 0,4 mol

nSO2 phn ng = 0,8 mol H = 80%

Cu 51: p n C

Ch chuyn v Cr2+

Cu 52: p n C

Cu 53: p n A

nX =nCO22= 0,05 mol; nancol = nH2O nCO2 = 0,03 mol nanehit,este = 0,02 mol

Axetanehit,metylfomat, phn ng vi AgNO3 trong NH3 u thu c 2Ag nAg = 0,04 a

= 4,32

Cu 54: p n A

nC2H2 = 0,15 mol; hn hp gm 2 cht hu c (C2H2, C2H4)

nC2H4 = 0,6.0,15 = 0,09 mol, nC2H2 = 0,06(mol) nBr2 = 0,09 + 0,06.2 = 0,24 (mol)

Cu 55: p n B

Si, CrO3, Zn, Al, Sn, Pb

Cu 56: p n C

Cu 57: p n A

Cu 58: p n D

X: C6H5ONa; Y: C6H5OH, Z: C6H10OH (xiclohecxanol); T:Dng xeton

T phn ng c vi Br2(H+)

Cu 59: p n B

nNO2phn ng = 0,08 mol ; Do V = 1l CM = n

Xt cn bng: SO2 + NO2 SO3 + NO

Mol ban u 0,11 0,1 0,07

Mol phn ng 0,08 0,08 0,08 0,08

Mol cn bng 0,03 0,02 0,15 0,08

kc =0,15.0,08

0,03.0,02= 20

Cu 60: p n B

MY = 89

ntetrapeptit =30,2

89.4 3.18= 0,1 mol; ntripeptit =

30,03

3.89 2.18= 0,13 mol

nipeptit =25,6

2.89 18= 0,16 mol; nY =

88,11

89= 0,99 mol

m =0,1.4 + 0,13.3 + 0,16.2 + 0,99

5. (89.5 18.4) = 156,66g


s 3

A. PHN CHUNG CHO TT C TH SINH (40 cu: T cu 1 n cu 40)

Cu 1: T nilon-6,6 l sn phm trng ngng gia hexametylen iamin vi axit?

A. picric. B. phtalic. C. benzoic. D. aipic.

Cu 2: Cho cc cht NaCl, FeS2, Fe(NO3)2, NaBr, CaCO3, NaI. C bao nhiu cht m khi tc dng vi dung dch

H2SO4 c, un nng th c phn ng oxi ha-kh xy ra?

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

Cu 3: Cho 10,1 gam hn hp X gm hai ancol n chc X1, X2 thuc cng dy ng ng (X1 chim 80% v

s mol v MX1 < MX2 ) tc dng ht vi 6,9 gam Na kt thc phn ng thu c 16,75 gam cht rn. Cng thc

ca X1, X2 ln lt l

A. C2H5OH v C3H7OH. B.CH3OH v C4H9OH. C.CH3OH v C2H5OH. D.C2H5OH v C4H9OH.

Cu 4: Cho s phn ng: C2H4 X Y +NaOH,t0

X.

Trong s cc cht CH3CHO, CH3COOH, CH3COOC2H5, C2H5OH, C2H5Cl, s cht tha mn vi iu kin ca X l

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

Cu 5: Ha tan 51,1 gam hn hp X gm NaCl v CuSO4 vo nc c dung dch Y. in phn dung dch Y

vi in tr mng ngn xp n khi nc bt u b in phn 2 in cc th dng li, th th tch kh anot

sinh ra gp 1,5 ln th tch kh sinh ra catot (cc th tch kh o cng iu kin nhit , p sut). Phn trm

khi lng ca CuSO4 trong hn hp X l

A. 94,25%. B. 73,22%. C. 68,69%. D. 31,31%.

Cu 6: Dung dch cha 0,6 mol H2SO4 c, un nng ha tan ht m gam Fe, sau phn ng ch thu c dung

dch X v kh SO2 (sn phm kh duy nht). Gi tr m l

A. 15,40. B. 22,75. C. 8,60. D. 8,96.

Cu 7: Hp cht hu c Y cha C, H, O trong oxi chim 55,17% theo khi lng v c s phn ng:

X Y X Z X. X, Y, Z ln lt l

A.C2H4(OH)2, (CHO)2, CH2Cl CH2Cl. B.C2H4Cl2, (CHO)2, (COOH)2.

C.(COOH)2, (CHO)2, CH2Cl CH2Cl. D.CH3OH, CH2O, CH3Cl.

Cu 8: Dung dch NaHSO4 tc dng c vi tt c cc cht c trong nhm no sau y?

A.NaNO3, AlCl3, BaCl2, NaOH,KOH. C.NaHCO3, BaCl2, Na2S,Na2CO3, KOH.

B.BaCl2, NaOH, FeCl3, Fe(NO3)2, KCl. D.Na2S, Cu(OH)2, Na2CO3, FeCl2, NaNO3.

Cu 9: Cho m gam bt Mg vo 500 ml dung dch FeCl3 1M. Sau khi cc phn ng xy ra hon ton, khi lng

dung dch thay i 2,4 gam so vi dung dch ban u (nc bay hi khng ng k). Gi tr no ca m trong

cc gi tr sau l khng tha mn?

A. 2,4. B. 12,3. C. 8,7. D. 9,6.

Cu 10 Cho m gam mt kim loi tc dng va vi 12,5m gam dung dch H2SO4 14% (long), sau khi phn

ng xy ra hon ton thu c dung dch X. Dung dch X c khi lng th no so vi dung dch H2SO4 ban

u? (bit trong qu trnh phn ng nc bay hi khng ng k)

A. Tng 8,00%. B. Tng 2,86%. C. Tng 7,71%. D. Tng 8,97%.

Cu 11: Cho 30,8 gam hn hp Cu v Fe3O4 tc dng vi dung dch cha a mol HNO3. Sau khi cc phn ng

xy ra hon ton thu c 2,24 lt kh X (sn phm kh duy nht, ktc), dung dch Y cha 64,6 gam mui

nitrat v cn li 6,4 gam kim loi. Cng thc phn t kh X v gi tr ca a ln lt l

A.NO2 v 0,2. B. NO v 0,7. C. NO v 0,8. D.N2O v 1,0.

Cu 12: t chy hon ton x mol hn hp hai anehit no, c cng s nguyn t cacbon thu c 67,2x lt CO2

(ktc) v 43,2x gam H2O. Mt khc cho x mol hn hp trn tc dng vi dung dch AgNO3 d, trong NH3, sau

phn ng hon ton thu c khi lng Ag l

A. 345,6x gam. B. 324x gam. C. 216x gam. D. 378x gam.

Cu 13: X l mt amin bc 3 iu kin thng th kh. Ly 7,08 gam X tc dng ht vi dung dch HCl th

khi lng mui thu c l


Cu 14: C th iu ch mt loi thuc dit nm l dung dch CuSO4 5% (d = 1,024 gam/ml) theo s sau:

CuS CuO CuSO4.

30 | L O V E B O O K . V N

thu c 3125 lt thuc dit nm trn cn bao nhiu tn nguyn liu cha 80% CuS v khi lng (cn li

l tp cht tr)? Bit hiu sut ca c qu trnh iu ch l 80%

A. 0,1200 tn. B. 0,1250 tn. C. 0,1875 tn D. 0,1500 tn.

Cu 15: Hn hp lng X gm benzen, phenol, axit benzoic, ancol benzylic. Ly 10,48 gam X tc dng vi Na

va , sau phn ng hon ton thu c 0,896 lt H2 (ktc). Cng 10,48 gam hn hp X tc dng va vi

60 ml dung dch NaOH 1M. Khi em 5,24 gam X tc dng vi dung dch NaHCO3 d th c 0,448 lt kh CO2

(ktc). Phn trm s mol ca benzen trong hn hp l

A. 14,88%. B. 20%. C. 25%. D. 10%.

Cu 16: Anken khi hirat ha ch thu c mt ancol duy nht l

A. propen. B. but-1-en. C. pent-2-en. D. hex-3-en.

Cu 17: Cho 24,64 lt (ktc) hn hp kh X gm CO, CO2, N2 c tng khi lng l 32,4 gam i qua 100 ml dung

dch cha NaOH 0,4M v Ba(OH)2 0,4M sau cc phn ng hon ton thu c m gam kt ta. Gi tr ca m l?

A. 19,70. B. 15,76. C. 3,94. D. 7,88.

Cu 18: Kim loi M c ha tr n khng i tc dng vi HNO3 theo phn ng

M + HNO3M(NO3)n + NO2 + NO + H2O ; bit VNO2: VNO = 2: 1

T l s phn t HNO3 khng b kh v b kh trong phng trnh ha hc trn l

A. 8 : 3. B. 5 : 3. C. 3 : 8. D. 3 : 5.

Cu 19: Ha tan ht 17,94 gam mt kim loi kim vo mt lng nc d thu c dung dch X. Cho dung

dch X tc dng vi 36,92 gam P2O5 th thu c dung dch Y ch cha hai mui c nng mol bng nhau.

Kim loi kim l

A. Na. B. Rb. C. K. D. Li.

Cu 20: Hn hp kh v hi gm CH3OH, C2H6, C3H8, CH3 O CH3 c t khi hi so vi H2 l 19,667. t

chy hon 11,5 gam hn hp trn thu c 12,32 lt CO2 (ktc) v m gam H2O. Gi tr ca m l

A. 14,4. B. 15,79. C. 13,4. D. 15,163.

Cu 21: Cho cc cht: Fructoz, vinyl axetat, triolein (glixerol trioleat), glucoz, Ala-Gly-Ala. S cht tc dng

c vi Cu(OH)2 l

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

Cu 22: Cho cc dung dch khng mu ng ring bit trong cc l mt nhn: BaCl2, MgSO4, Na2SO4,

KNO3, K2S. Nu khng dng thm thuc th no khc th nhn bit c nhiu nht bao nhiu dung dch trong

cc dung dch trn?

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

Cu 23: Hp cht hu c c dng sn xut t tng hp l

A. poli(metyl metacrylat). B. poli(vinyl xianua). C. polistiren. D. poliisopren.

Cu 24: Cho cc nguyn t X (Z = 11); Y(Z = 13); T(Z=17). Nhn xt no sau y l ng?

A. Cc hp cht to bi X vi T v Y vi T u l hp cht ion.

B. Theo chiu X, Y, T bn knh ca cc nguyn t tng ng tng dn.

C. Nguyn t cc nguyn t X, Y, T trng thi c bn u c 1 electron c thn.

D. Oxit v hiroxit ca X, Y, T u l cht lng tnh.

Cu 25: C cc cht lng: etylen glicol, axit axetic, propyl axetat, ancol etylic, anehit axetic v butyl amin. Dy

ha cht nhn bit cc cht trn l

A. Cu(OH)2 v dung dch NaOH. B. dung dch AgNO3 v dung dch HCl.

C.Cu(OH)2 v dung dch NaCl. D.dung dch AgNO3/NH3 v dung dch KMnO4.

Cu 26: Ch t cc ha cht: KMnO4, FeS, NaCl, dung dch H2SO4 v khng s dng phng php in phn th

c th iu ch c ti a bao nhiu cht kh?

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

Cu 27: X l hp cht hu c n chc cha C, H, O. Ly 14,4 gam X tc dng va vi 50 gam dung dch

NaOH 16%, sau phn ng hon ton c cn dung dch, thu c 22,4 gam cht rn khan. T X iu ch axit

acrylic cn t nht bao nhiu phn ng?

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

Cu 28: Dy gm cc kim loi c cng kiu mng tinh th lp phng tm din l

A. Al, Ca, Cu. B. Al, Cr, Cu. C. Ca, Cr, Al. D. Ca, Ba, Mg.


Cu 29: Nung hn hp gm x mol Fe(NO3)2, y mol FeS2 v z mol FeCO3 trong bnh kn cha mt lng d

khng kh. Sau khi cc phn ng xy hon ton a bnh v nhit ban u thy p sut bnh khng i so

vi ban u. Mi lin h gia x, y, z l

A. 6x + 2z = y. B. 3x + z = y. C. 9x + 2z = 3y. D. 6x + 4z = 3y

Cu 30: Hn hp X gm CH3OH v C2H5OH c cng s mol. Ly 4,29 gam X tc dng vi 7,2 gam

CH3COOH (c H2SO4 c xc tc) thu c m gam hn hp este (hiu sut phn ng este ha u bng 50%).

Gi tr m l

A. 4,455. B. 4,860. C. 9,720. D. 8,910.

Cu 31: Ha tan ht 23,2 gam hn hp rn X gm FeO, Fe2O3, Fe3O4 trong dung dch HCl long, d ri c cn

dung dch sau phn ng thu c 45,2 gam mui khan. Nu kh hon ton lng X trn s thu c bao nhiu

gam st?

A. 11,6. B. 11,2. C. 16,8. D. 12,8.

Cu 32: Hiro ha hon ton hirocacbon X (cha mt lin kt mch h hoc mt vng no) thu c

hirocacbon Y cha 18,18% H v khi lng. S cng thc cu to tha mn vi iu kin ca X l

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

Cu 33: ng vi cng thc phn t CnH2n2O2 khng th c loi hp cht hu c:

A. Axit no, n chc mch vng.

B. Este n chc, mch h, c mt ni i trong mch cacbon.

C. Anehit no, hai chc, mch h.

D. Axit n chc c hai ni i trong mch cacbon.

Cu 34: Hn hp bt no sau y tan ht trong dung dch HCl d?

A. Fe3O4 v Cu c t mol tng ng 1:2. B.Fe(NO3)2 v Cu c s mol bng nhau.

C. CuS v Fe2O3 c s mol bng nhau. D.CaCO3, MgSO4 v BaSO4 c s mol bng nhau.

Cu 35: Ancol etylic khng tc dng vi

A. NaOH. B.C2H5OH. C. HCl. D.CH3COOH.

Cu 36: Ly 10,32 gam hn hp gm petanal v anlyl fomat tc dng vi dung dch AgNO3 d trong NH3, sau

khi cc phn ng hon ton thu c m gam Ag. Gi tr ca m l

A. 12,96. B. 25,92. C. 10,8. D. 21,6.

Cu 37: St khng b n mn in ha khi tip xc vi kim loi no sau y trong khng kh m?

A. Sn. B. Zn. C. Ni. D. Pb.

Cu 38: Axit cacboxylic c kh nng cng hp vi H2 l

A. axit panmitic. B. axit oleic. C. axit stearic. D. axetic.

Cu 39: Thc hin phn ng nhit nhm (trong iu kin khng c oxi) hn hp gm Fe3O4, Al thu c 80,4

gam hn hp X. Chia X thnh hai phn: phn 2 c khi lng gp 3 ln khi lng phn 1. Phn 1 tc dng va

vi 100ml dung dch NaOH 1M. Phn 2 khi tc dng vi HNO3 c nng, d th thu c V lt kh NO2 (

ktc). Gi tr ca V l

A. 25,20. B. 20,16. C. 10,08. D. 45,36.

Cu 40: Hp cht hu c: OHC CH(OH) CH = CH CHO c tn gi l

A. 3-hiroxi prop-1-en-1,3-ial. B. 4-hiroxi pent-2-en-1,5-ial.

C. 2-hiroxi pent-3-en-1,5-ial. D. 1-hiroxi prop-2-en-1,3-ial.

B. PHN RING: Th sinh ch c chn lm 1 trong 2 phn (Phn I hoc Phn II)

Phn I. Theo chng trnh Chun (10 cu: T cu 41 n cu 50)

Cu 41: t chy hon ton m gam hn hp X gm FeS2 v mt oxit st cn dng 0,6 mol O2 thu c 0,4 mol

Fe2O3 v 0,4 mol SO2. Cho m gam hn hp X trn tc dng vi dung dch H2SO4 c nng, d n khi cc phn

ng xy ra hon ton, sn phm kh duy nht l SO2 th s mol H2SO4 tham gia phn ng l bao nhiu?


Cu 42: Dy gm cc cht m khi cho tng cht tc dng vi dung dch HI u sinh ra sn phm c it l

A. Fe2O3, Fe3O4, Fe2(SO4)3, Cl2. C. AgNO3, Na2CO3, Fe2O3, Br2 .

B. Fe3O4, FeO, AgNO3, FeS. D. Fe(OH)3, FeO, FeCl3, Fe3O4.

Cu 43: Hp cht m khng th dng 1 phn ng ha hc to ra butaien l

A. vinyl axetilen. B. but-2-en. C. ancol etylic. D. etilen

32 | L O V E B O O K . V N

Cu 44: Hp cht hu c X c cng thc phn t C2H7NO2. em 15,4 gam X tc dng ht vi dung dch NaOH

thu c m gam hn hp 2 cht hu c (u lm i mu qu tm m). Gi tr ca m l

A. 16,4. B. 19,8. C. 24,4. D. 13,2.

Cu 45: Bng phng php ha hc, c th phn bit 3 dung dch khng mu:HCl long, KNO3, Na2SO4ng

trong 3 l mt nhn ch vi thuc th l

A. Qu tm. B.BaCl2. C. Na2CO3 D. Bt Fe.

Cu 46: Nung nng 0,5 mol hn hp X gm H2, N2 trong bnh kn c xc tc thch hp, sau mt thi gian thu

c hn hp Y. Cho 12 gam hn hp Y i qua ng ng CuO d, un nng thy khi lng cht rn trong

ng gim nhiu nht l 3,2 gam. T khi hi ca X so vi H2 l

A. 7,2. B. 11,4. C. 3,6. D. 3,9.

Cu 47: Nh t t dung dch NaOH vo dung dch X (dung mi H2O) thy xut hin kt ta, cho tip dung dch

HCl vo li thy kt ta tan ra. Vy cht tan trong dung dch X l

A. C2H5NH3Cl. B. CH3COONa. C. C6H5NH3Cl. D. C6H5ONa.

Cu 48: Cho 2,75 gam hn hp M gm 2 ancol X, Y qua CuO, t nng, sau phn ng hon ton thu c hn

hp Z gm 2 anehit n chc, ng ng k tip. Ly ton b lng Z thu c trn thc hin phn ng

trng bc th thu c ti a 27 gam Ag. Khng nh khng ng l

A. T X v Y u c th dng 1 phn ng ha hc to ra axit axetic.

B. X chim 50% s mol trong hn hp M.

C. Khi t chy hon ton hn hp M th s mol O2 cn dng gp 1,5 ln s mol CO2 to ra.

D. X v Y c th tc dng vi nhau.

Cu 49: t chy hon ton m gam hn hp X gm hai amino axit X1, X2 (cha 1 chc axit, 1 chc amin v X2

nhiu hn X1 mt nguyn t cacbon), sinh ra 35,2 gam CO2 v 16,65 gam H2O. Phn trm khi lng ca X1

trong X l

A. 80%. B. 20%. C. 77,56%. D. 22,44%.

Cu 50: Cho cc cht Al, Zn, Cr, Sn, Pb, Si c bao nhiu cht tan c trong dung dch NaOH c un nng?

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

Phn II. Theo chng trnh Nng cao (10 cu: T cu 51 n cu 60)

Cu 51: Hp cht hu c X mch h, phn t cha mt loi nhm chc c cng thc phn t C6HyOz. Trong

X oxi chim 44,44% theo khi lng. X tc dng vi NaOH to mui Y v cht hu c Z. Cho Y tc dng vi

dung dch HCl to ra cht hu c Y1 l ng phn ca Z. Cng thc ca Z l

A. CH3 COOH. B.CH3 CHO

C.HO CH2 CHO. D.HO CH2 CH2 CHO.

Cu 52: Trong cc cht sau: SO2, C2H4, FeSO4, Cl2, FeCl2, HCl c bao nhiu cht c phn ng vi dung dch nc

brom?

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

Cu 53: Hp cht kh tham gia th H ca vng benzen hn so vi benzen v s th u tin v tr ortho v

para so vi nhm c sn l

A.C6H5COOH. B.C6H5OH. C.C6H5Cl. D. C6H5CH3.

Cu 54: Cho hp cht hu c X c cng thc:

H2N CH(CH3) CO NH CH2 CO NH CH2 CH2 CO NH CH(C6H5) CO NH

CH(CH3) COOH. Khng nh ng l

A. Trong X c 4 lin kt peptit.

B. Khi thy phn X thu c 4 loi -amino axit khc nhau.

C. X l mt pentapeptit.

D. Trong X c 2 lin kt peptit.

Cu 55: Nhn xt no sau y khng ng v nc?

A.H2O l cht lng tnh. B.H2O lc c tnh oxi ha, lc c tnh kh.

C.H2O l phn t dung mi lng cc D. Phn t H2O c cu trc chp tam gic.

Cu 56: Thm vi git dung dch KSCN (khng mu) vo dung dch X cha cc ion Fe3+, Na+, Fe2+, 3Al3+,

Cl v SO42 th c hin tng?

A. To dung dch mu xanh lam. B. To dung dch mu mu.


C. To kt ta mu nu . D. To kt ta mu trng xanh.

Cu 57: Cho 27,6 gam axit salixylic (axit o-hiroxibenzoic) tc dng ht vi anhirit axetic, th khi lng este

thu c l

A. 30,4 gam. B. 32 gam. C. 48 gam. D. 36 gam.

Cu 58: X l hp cht hu c tp chc thm c cng thc phn t C7H6O2. Khi cho 0,1 mol X tc dng vi

Cu(OH)2 va , trong mi trng dung dch NaOH d th khi lng sn phm hu c thu c l


Cu 59: Ha tan hon ton 40 gam hn hp gm FeS2, CuS, FeS bng dung dch HNO3 th thu c dung dch

X ch cha hai mui v 4 mol NO2, khng c kt ta to ra. Cho dung dch NH3 d vo dung dch X, lc ly kt

ta em nung n khi lng khng i th thu c bao nhiu gam cht rn?

A. 32,0. B. 21,4. C. 24,0. D. 16,0.

Cu 60: Nung mt lng mui sunfua ca mt kim loi ha tr khng i trong bnh cha oxi d th thot ra

5,6 lt kh X (ktc) v cht rn Y. Cht rn Y c nung vi bt than d to ra 41,4 gam kim loi. Nu cho ton

b kh X i chm qua bt Cu d nung nng th th tch kh gim i 20%. Cng thc ca mui sunfua l

A. PbS. B.Cu2S. C. ZnS. D. FeS.

P N

1.D 2.D 3.B 4.C 5.D 6.A 7.A 8.C 9.D 10.C

11.C 12.A 13.C 14.D 15.B 16.D 17.C 18.B 19.A 20.D

21.A 22.D 23.B 24.C 25.A 26.C 27.B 28.A 29.B 30.A

31.C 32.D 33.D 34.B 35.A 36.B 37.B 38.B 39.A 40.C

41.C 42.A 43.D 44.B 45.D 46.C 47.C 48.B 49.C 50.A

51.C 52.A 53.C 54.D 55.C 56.B 57.D 58.B 59.D 60.A

34 | L O V E B O O K . V N

s 4

I. Phn chung cho tt c cc th sinh (40 cu, t cu 1 n cu 40)

Cu 1: Hn hp A gm X, Y (MX< MY) l 2 este n chc c chung gc axit. un nng m gam A vi 400 ml dung

dch KOH 1M d thu c dung dch B v (m 12,6) gam hn hp hi gm 2 anehit no, n chc ng ng k

tip c t khi hi so vi H2 l 26,2. C cn dung dch B thu c (m + 6,68) gam cht rn khan. % khi lng ca

X trong A l:

A. 54,66% B. 45,55% C. 36,44% D. 30,37%

Cu 2: Cho 240 ml dung dch KOH 1,5M vo V lt dung dch AlCl3 aM thu c 7,8 gam kt ta. Nu cho 100 ml

dung dch KOH 1,5M vo V lt dung dch AlCl3 aM th s gam kt ta thu c l:

A. 5,85 gam B. 3,9 gam C. 2,6 gam D. 7,8 gam

Cu 3: Cho cc cht: CH3COOH (1); CH3-CH2-CH2OH (2); C2H5OH (3); C2H5COOH (4); CH3COCH3 (5). Th t cc

cht theo chiu tng dn nhit si l:

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

Cu 4: Cho 8,04 gam hn hp hi gm CH3CHO v C2H2 tc dng hon ton vi dung dch AgNO3/NH3 thu

c 55,2 gam kt ta. Cho kt ta ny vo dung dch HCl d, sau khi kt thc phn ng cn li m gam cht

khng tan. Gi tr ca m l:


Cu 5: Cho 3,84 gam Mg tc dng vi dung dch HNO3 d thu c 1,344 lt NO (ktc) v dung dch X. Khi

lng mui khan thu c khi lm bay hi dung dch X l:


Cu 6: X phng ha 265,2 kg cht bo c ch s axit bng 7 cn 56,84 kg dung dch NaOH 15%. Khi lng

glixerol thu c l (gi s phn ng xy ra hon ton v ch s axit l s mg KOH dng trung ha ht lng

axit t do c trong 1 gam cht bo):

A. 5,98 kg B. 4,62 kg C. 5,52 kg D. 4,6 kg

Cu 7: Tnh cht no sau y khng bin i tun hon theo chiu tng ca in tch ht nhn ca cc nguyn

t trong bng tun hon:

A. Nguyn t khi B. m in C. Nng lng ion ha D. Bn knh nguyn t

Cu 8: Trong qu trnh sn xut Ag t qung Ag2S bng phng php thy luyn ngi ta dng cc ha cht:

A. Dung dch H2SO4, Zn B. Dung dch HCl long, Mg

C. Dung dch NaCN, Zn D. Dung dch HCl c, Mg

Cu 9: Cht no sau y c cu trc mng khng gian:

A. Amilopectin B. Nha rezit C. Cao su buna-S D. Nha rezol

Cu 10: Hp cht X c cha vng benzen v c cng thc phn t l C7H6Cl2. Thy phn X trong NaOH c,

nhit cao, p sut cao thu c cht Y c cng thc C7H7O2Na. Hy cho bit X c bao nhiu cng thc cu

to:

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

Cu 11: Ion M2+ c cu hnh e: [Ar]3d8. V tr ca M trong bng tun hon l:

A. Chu k 4, nhm VIIIB B. Chu k 3, nhm VIIIA

C. Chu k 3, nhm VIIIB D. Chu k 4, nhm VIIIA

Cu 12: Phn ng no sau y chng t glucoz c cu trc dng vng

A. tc dng vi H2/Ni, t0 B. tc dng vi AgNO3/NH3

C. tc dng vi CH3OH/HCl khan D. tc dng vi Cu(OH)2/OH- nhit thng

Cu 13: Ha tan 17 gam hn hp X gm K v Na vo nc c dung dch Y v 6,72 lt H2 (ktc). trung ha

mt na dung dch Y cn dng dung dch hn hp H2SO4 v HCl (t l mol 1:2). Tng khi lng mui c to

ra l:


Cu 14: C 4 gi bt trng: Glucoz, tinh bt, xenluloz, saccaroz. C th chn nhm thuc th no di y

phn bit c c 4 cht trn:

A. H2O, dd AgNO3/NH3, dd HCl B. H2O, dd AgNO3/NH3, dd I2

C. H2O, dd AgNO3/NH3, dd NaOH D. H2O, O2 ( t chy), dd AgNO3/NH3


Cu 15: Hn hp X gm Al, Fe2O3 c khi lng 21,67 gam. Tin hnh phn ng nhit nhm hn hp X trong

iu kin khng c khng kh. Ha tan hon ton hn hp cht rn sau phn ng bng dung dch NaOH d thu

c 2,016 lt H2 (ktc) v 12,4 gam cht rn khng tan. Hiu sut ca phn ng nhit nhm l:

A. 80% B. 75% C. 60% D. 71,43%

Cu 16: Trong mt bnh kn dung tch 2 lt, ngi ta cho vo 9,8 gam CO v 12,6 gam hi nc. C phn ng

xy ra: CO + H2O CO2 + H2 8500C, hng s cn bng ca phn ng l K = 1. Nng H2 khi t n trng

thi cn bng l:

A. 0,22M B. 0,12M C. 0,14M D. 0,75M

Cu 17: t chy hon ton 0,1 mol ancol no A cn 15,68 lt O2 (ktc) bit t khi hi ca A so vi H2 bng 52.

Ly 4,16 gam A cho tc dng vi CuO nung nng d sau phn ng thy khi lng cht rn gim 0,64 gam v

thu c cht hu c B khng c kh nng trng bc. Vy A l:

A. 2-metylbutan-1,4-iol B. Pentan-2,3-iol C. 2-metylbutan-2,3-iol D. 3-metylbutan-1,3-iol

Cu 18: Mt mui X c cng thc phn t l C3H10O3N2. Ly 19,52 gam X cho phn ng vi 200 ml dung dch

KOH 1M. C cn dung dch sau phn ng thu c cht rn v phn hi. Trong phn hi c cht hu c Y n

chc bc I v phn rn ch l hn hp cc cht v c c khi lng m gam. Gi tr ca m l:


Cu 19: Ha tan ht 6,08 gam hn hp gm Cu, Fe bng dung dch HNO3 thu c dung dch X v 1,792 lt NO

(ktc). Thm t t 2,88 gam bt Mg vo dung dch X n khi phn ng xy ra hon ton thu c 0,448 lt NO

(ktc), dung dch Y v m gam cht rn khng tan. Gi tr ca m l :


Cu 20: Ha tan ht 10,24 gam Cu bng 200 ml dung dch HNO3 3M c dung dch A. Thm 400 ml dung dch

NaOH 1M vo dung dch A. Lc b kt ta, c cn dung dch ri nung cht rn n khi lng khng i thu

c 26,44 gam cht rn. S mol HNO3 phn ng vi Cu l:

A. 0,48 mol B. 0,58 mol C. 0,56 mol D. 0,4 mol

Cu 21: Cho dung dch Ba(HCO3)2 ln lt tc dng vi cc dung dch sau: NaOH, NaHSO4, HCl, KHCO3, K2CO3,

H2SO4. S trng hp xy ra phn ng v s trng hp c kt ta l:

A. 4 v 4 B. 6 v 5 C. 5 v 2 D. 5 v 4

Cu 22: Cho m gam Ba tc dng vi H2O d sau phn ng thu c 500 ml dung dch c pH = 13. Gi tr ca

m l:


Cu 23: t chy hon ton m gam FeS2 bng mt lng O2 va thu c kh X. Hp th ht X vo 1 lt dung

dch cha Ba(OH)2 0,2M v KOH 0,2M thu c dung dch Y v 32,55 gam kt ta. Cho dung dch NaOH vo

dung dch Y li thy xut hin thm kt ta. Gi tr ca m l:

A. 24 gam B. 27 gam C. 30 gam D. 36 gam

Cu 24: C 4 dung dch, mi dung dch cha 1 trong 4 cht: CH4O, CH5N, CH2O, CH2O2. Dng cht no nhn bit

chng:

A. Giy qu, dd AgNO3 /NH3 B. Giy qu, dd FeCl3

C. Giy qu, dd AgNO3 /NH3, Na D. Giy qu, dd AgNO3 /NH3, Br2

Cu 25: Cho cc cht: H2N-CH2-COOH; HOOC-CH2-CH2-CH(NH2)-COOH; H2NCH2COOC2H5; CH3COONH4;

C2H5NH3NO3. S cht lng tnh l:

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

Cu 26: H2O2 th hin tnh kh khi tc dng vi cht no sau y:

A. Ag2O B. PbS C. KI D. KNO2

Cu 27: Cho 8,4 gam Fe tc dng va vi dung dch cha 0,4 mol H2SO4 c, nng (gi thit SO2 l sn phm

kh duy nht). Sau khi phn ng xy ra hon ton c cn dung dch c m gam mui khan. Gi tr ca m l:

A. 35,2 gam B. 22,8 gam C. 27,6 gam D. 30 gam

Cu 28: Cho 0,5 mol H2 v 0,15 mol vinyl axetilen vo bnh kn c mt xc tc Ni ri nung nng. Sau phn ng thu c

hn hp kh X c t khi so vi CO2 bng 0,5. Cho hn hp X tc dng vi dung dch Br2 d thy c m gam Br2 tham

gia phn ng. Gi tr ca m l:

A. 40 gam B. 24 gam C. 16 gam D. 32 gam

Cu 29: Cho s : But 1 in +HCl X1

+HCl X2

+NaOH X3 th X3 l:

36 | L O V E B O O K . V N

A. CH3CO-C2H5 B. C2H5CH2CHO C. C2H5CO-COH D. C2H5CH(OH)CH2OH

Cu 30: Cho cc hirocacbon sau y phn ng vi clo theo t l 1:1 v s mol, trng hp no to thnh nhiu sn

phm ng phn nht:

A. neopentan B. Pentan C. etylxiclopentan D. Isopentan

Cu 31: 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)2 d thu c 39,4 gam kt ta v c V lt kh Y thot

ra. Cho Y tc dng vi CuO d nung nng sau phn ng thy khi lng cht rn gim m gam. Gi tr ca m l:


Cu 32: Kh mt este E no n chc mch h bng LiAlH4 thu c mt ancol duy nht G. t chy m gam G

cn 2,4m gam O2. t m gam E thu c tng khi lng CO2 v H2O l 52,08 gam. Nu cho ton b lng CO2,

H2O ny vo 500 ml dung dch Ba(OH)2 1M. Khi lng kt ta sinh ra l:


Cu 33: Dung dch X c cha KCl, FeCl3, HCl. in phn dung dch X mt thi gian thu c dung dch Y. Y khng

lm i mu qu tm chng t qu trnh in phn dng li khi:

A. va ht FeCl3 B. va ht FeCl2 C. va ht HCl D. in phn ht KCl

Cu 34: Ch dng mt thuc th no sau y phn bit cc dung dch ng trong cc l mt nhn: anbumin,

glucoz, saccaroz, axit axetic.

A. dung dch NH3 B. Cu(OH)2 C. CuSO4 D. HNO3 c

Cu 35: Nhn nh no sau y khng ng:

A. Hn hp Fe3O4 v Cu c th tan ht trong dung dch HCl

B. Hn hp Al2O3 v K2O c th tan ht trong nc

C. Hn hp CuS v FeS c th tan ht trong dung dch HCl

D. Hn hp Al v BaO c th tan ht trong nc

Cu 36: X l mt -amino axit c cha vng thm v mt nhm NH2 trong phn t. Bit 50 ml dung dch X phn ng

va vi 80 ml dung dch HCl 0,5M, dung dch thu c phn ng va vi 50 ml dung dch NaOH 1,6M. Mt khc

nu trung ha 250 ml dung dch X bng lng va KOH ri em c cn thu c 40,6 gam mui. Cng thc cu to

ca X l:

A. C6H5-CH(CH3)-CH(NH2)COOH B. C6H5-CH(NH2)-CH2COOH

C. C6H5-CH(NH2)-COOH D. C6H5-CH2CH(NH2)COOH

Cu 37: Trong cng nghip ngi ta iu ch nc giaven bng cch:

A. Cho kh Cl2 i t t qua dung dch NaOH, Na2CO3 C. Sc kh Cl2 vo dung dch KOH B. in phn dung dch NaCl khng mng ngn D. Cho kh Cl2 vo dung dch Na2CO3

Cu 38: T no sau y c ch to t polime trng hp:

A. T e nang B. T capron C. T lapsan D. T nilon-6,6

Cu 39: Lc 13,14 gam Cu vi 250 ml dung dch AgNO3 0,6M mt thi gian thu c 22,56 gam cht rn A v

dung dch B. Nhng thanh kim loi M nng 15,45 gam vo dung dch B khuy u n khi phn ng hon ton

thu c dung dch ch cha mt mui duy nht v 17,355 gam cht rn Z. Kim loi M l:

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

Cu 40: Cho cc phn ng:

Na2SO3 + H2SO4 Kh X FeS + HCl Kh Y

NaNO2 bo ha + NH

40 de phien ban 2014

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