[bookgol.com]bo de thi 2015_2

TS. PHM NGC SN

20 THI TRC NGHIM

MN HO HC (Dng cho K thi Quc gia nm 2015)

Nh xut bn Gio dc Vit Nam

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THI TH QUC GIA NM 2015 S 1

H v tn th sinh: ... S bo danh:

Cho bit nguyn t khi (theo vC) ca cc nguyn t:

H = 1; He = 4; Li = 7; Be = 9; C = 12; N = 14; O = 16; Na = 23; Mg = 24; Al = 27; S = 32;

Cl = 35,5; K = 39; Ca = 40; Cr = 52; Mn = 55; Fe = 56; Cu = 64; Zn = 65; Br = 80; Rb = 85;

Sr = 88; Ag = 108; Sn = 119; Cs = 133; Ba = 137; Pb = 207; I = 127; F = 19.

Cu 1: Hn hp X gm 3 peptit u mch h c t l mol tng ng l 1 : 1 : 2. Thy phn hon ton

m gam X, thu c hn hp sn phm gm 71,20 gam alanin v 52,50 gam glyxin. Bit tng s lin

kt peptit trong phn t ca ba peptit trong X nh hn 10. Gi tr ca m l:

A. 96,70 B. 101,74 C. 100,30 D. 103,9

Cu 2: Ha tan ht 11,44 gam hn hp X gm Fe v FeO bng dung dch cha 0,25mol H2SO4 v

0,15mol HNO3 thu c dung dch Y v hn hp gm 0,08mol NO v a mol NO2 (khng c sn phm

kh no khc). Chia dung dch Y thnh 2 phn bng nhau:

- Phn I tc dng vi 97,5ml dung dch KOH 2M thu c 6,42 gam mt cht kt ta.

- Phn II tc dng vi dung dch Ba(OH)2 d thu c m gam kt ta.

Bit cc phn ng xy ra hon ton. Gi tr ca m l:

A. 38,22 B. 29,15 C. 35,85 D. 32,26

Cu 3: Tng s ht proton, notron, electron trong hai nguyn t kim loi X v Y l 142, trong tng

s ht mng in nhiu hn tng s ht khng mang in l 42. S ht mang in ca nguyn t Y

nhiu hn ca X l 12. Hai kim loi X, Y ln lt l

A. Ca, Fe. B. Na, K. C. Mg, Fe. D. K, Ca.

Cu 4: Cho hn hp X gm ancol metylic v mt axit cacboxylic (no, n chc, mch h) tc dng

ht vi Na gii phng ra 0,56 lt kh H2 (ktc). Nu un nng hn hp X (H2SO4 c xc tc) th thu

c 1,48g mt este (hiu sut phn ng t 100%). Bit t l mol ca ancol : axit l 2 : 3. Cng thc

axit l

A. HCOOH. B. CH3COOH. C. C2H5COOH. D. C3H7COOH.

Cu 5: Dung dch X c 0,1mol K+; 0,2mol Mg2+; 0,1mol Na+; 0,2mol Cl- v amol Y-. C cn dung

dch X thu c m gam mui khan. Ion Y- v gi tr ca m l:

A. OH- v 20,3 B. NO3

- v 42,9 C. NO3

- v 23,1 D. OH

- v 30,3

Cu 6: Cho cc cht sau: K, Fe, Ba, Cu, Na, Ca, Al, Li, Mg. S cht tc dng c vi nc nhit

thng l

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

Cu 7: Nung nng hon ton 28,9g hn hp KNO3 v Cu(NO3)2. Hn hp kh thot ra c dn vo

nc d th thy c 1,12 lt kh thot ra (ktc) (lng oxi b ha tan khng ng k). Thnh phn phn

trm khi lng Cu(NO3)2 trong hn hp ban u l

A. 65,05%. B. 34,95%. C. 27,38%. D. 68.34%.

Cu 8: Cho cc ion kim loi: Cu2+; Fe3+; Ag+; Zn2+; Ca2+. Chiu tng dn tnh oxi ha ca cc ion kim

loi l

A. Ca2+

< Zn2+

< Fe3+

< Cu2+

< Ag+

B. Ca2+

< Fe3+

< Zn2+

< Cu2+

< Ag+

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C. Ca2+

< Zn2+

< Fe3+

< Ag+

< Cu2+

D. Ca2+

< Zn2+

< Cu2+

< Fe3+

< Ag+

Cu 9: Cht no sau y khng thy phn c

A. saccaroz. B. mantoz. C. tinh bt. D. fructoz.

Cu 10: Cho t t 300 ml dung dch HCl 1M vo 100 ml dung dch hn hp Na2CO3 1M v NaHCO3

1M c V lt kh (ktc). Gi tr ca V l

A. 2,24 lt. B. 4,48 lt. C. 3,36 lt. D. 5,6 lt.

Cu 11: Ha tan hon ton 2,85g hn hp Al v Al2O3 vo dung dch NaOH ly d. Sau khi phn ng

xy ra hon ton thy gii phng ra 1,008 lt kh (ktc). Phn trm khi lng ca Al2O3 trong hn hp

ban u l

A. 28,42%. B. 36,57%. C. 71,58%. D. 75,09%.

Cu 12: Ha tan hon ton 10g hn hp gm FeSO4 v Fe2(SO4)3 vo nc thu c dung dch X. X

phn ng va vi 100 ml dung dch KMnO4 0,1M trong mi trng axit. Thnh phn phn trm v

khi lng ca Fe2(SO4)3 trong hn hp ban u l

A. 15,2%. B. 76,0%. C. 24,0%. D. 84,8%.

Cu 13: kh hon ton 20,8g hn hp gm Fe, FeO, Fe2O3, Fe3O4 cn va 5,6 lt (ktc) CO.

Khi lng Fe thu c sau phn ng l

A. 16,8g. B. 18,6g. C. 20,4g. D. 26.5g.

Cu 14: Nguyn t ca nguyn t X c cu hnh electron 1s22s22p63s23p64s1, nguyn t ca nguyn t

Y c cu hnh electron 1s22s22p5. Lin kt ho hc gia nguyn t X v nguyn t Y thuc loi lin

kt:

A. cho-nhn B. cng ho tr. C. ion D. kim loi

Cu 15: Cho 10,0 gam hn hp hai anehit n chc (t l mol 1:1) tc dng vi AgNO3 d trong

NH3 thu c 64,8 gam Ag. Vy cng thc ca hai anehit l:

A. HCHO v CH3CHO B. HCHO v C3H5CHO

C. CH3CHO v C2H3CHO D. HCHO v C2H5CHO

Cu 16: Crackinh V lt pentan th thu c 2,5V lt hn hp X gm cc ankan v anken. Cho 22,4 lt

hn hp X qua dung dch Br2 d. Tnh s mol Br2 phn ng:

A. 0,40 mol B. 0,75 mol C. 0,50 mol D. 0,60 mol

Cu 17: Hn hp X gm H2, ankin v anken. T khi ca X i vi H2 l 8,2. Cho 11,2 lt hn hp X

qua Ni nung nng thu c hn hp Y. Cho hn hp Y qua dung dch Br2 d thu c hn hp kh Z

c th tch 3,36 lt. T khi ca Z i vi H2 l 7,0. Vy khi lng dung dch Br2 tng ln l:

A. 6,8 gam B. 6,1 gam C. 5,6 gam D. 4,2 gam

Cu 18: Cc dung dch no sau y c pH > 7: CH3NH2, H2NCH2COOH, CH3COONa, NH4Cl,

H2NCH2CH2CH2CH(NH2)COOH, C6H5NH2, K2CO3:

A. 2. B. 7. C. 6. D. 4.

Cu 19: Tnh khi lng axit v khi lng ancol cn ly iu ch c 86 gam poli(metyl

acrylat). Bit hiu sut phn ng este ho v phn ng trng hp ln lt l 62,5% v 80%.

A. 144 gam v 92 gam B. 144 gam v 64 gam

C. 172 gam v 92 gam D. 172 gam v 64 gam

Cu 20: Cho chui bin ha sau: C6H10O5(H+) C6H12O6 (ln men) X Y Z CH3COONa.

X, Y, Z ln lt l

A. C2H5OH, CH3COOH, CH3COOH

B. C2H4, C2H5OH, CH3COOH.

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C. CH3CH(OH)COOH, CH3CH(OH)COONa, CH2CHCOONa.

D. C2H5OH, CH3CHO, CH3COOH.

Cu 21: Cho cc polime sau: t tm, nilon-6, t axetat, nilon-6,6, t visco, poli(vinyl clorua), t

lapsan. S polime l t nhn to l

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

Cu 22: Cho amino axit X no, mch h, cha 1 nhm chc mi loi. Cho 0,1 mol X phn ng ht vi

HCl d thu c dung dch cha 11,15g mui. Tn gi ca X l

A. glyxin. B. valin. C. alanin. D. lysin.

Cu 23: Cho cc cht: (1) NH3, (2) C6H5NH2, (3) CH3NH2, (4) CH3NHCH3. Th t tnh bazo tng dn

l:

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

Cu 24: A, B l hai ancol n chc, k tip nhau trong dy ng ng. Cho hn hp gm 1,38g A v

1,2g B tc dng ht vi Na thu c 0,56 lt H2 (ktc). A, B ln lt l

A. CH3OH v C2H5OH. B. C2H5OH v C3H7OH.

C. C3H7OH v C4H9OH. D. C4H9OH v C5H12OH.

Cu 25: Cu no sau y khng ng:

A. cc cht in li mnh l axit mnh, baz mnh v cc mui tan.

B. cc cht in li c trong dung dch s dn c in.

C. C6H12O6 l cht khng in li.

D. CH3COOH l cht in li mnh.

Cu 26: t chy hon ton 6g mt este X thu c 4,48 lt kh CO2 (ktc) v 3,6g H2O. Cng thc

phn t ca X l

A. C4H8O2. B. C3H6O2. C. C2H4O2 . D. C4H6O2.

Cu 27: Trong cc cht sau y u l amin bc 2

A. H2N-[CH2]6-NH2. B. (CH3)2CH-NH2. C. CH3-NH-CH3. D. C6H5NH2.

Cu 28: Cho t t n d dung dch NaOH vo cc ng phenol c cha vi git phenolphtalein.

Hin tng xy ra l:

A. cc ng phenol chuyn t hng sang xanh.

B. cc ng phenol chuyn t xanh sang hng.

C. cc ng phenol chuyn t khng mu sang hng.

D. cc ng phenol chuyn t hng sang khng mu.

Cu 29: Cho 2,53g hn hp X gm HCOOH, CH3COOH, C6H5OH (phenol) tc dng vi dung dch

NaOH va , sau phn ng thu c thm 0,72g nc v m gam hn hp mui khan. Gi tr ca m l

A. 1,81. B. 3,45. C. 3,25. D. 3,41.

Cu 30: Polime X c khi lng phn t l 400000 g/mol v h s trng hp l n = 4000. X l

A. [-CH2-CH2-]n. B. [-CF2-CF2-]n. C. [-CH2-CHCl-]n. D. [-CH2-CH(CH3)-]n.

Cu 31: Khi i t Li ti Cs trong mt phn nhm bn knh nguyn t s

A. gim dn. B. va tng va gim. C. tng dn. D. khng i.

Cu 32: phn bit Gly-Ala-Val vi Gly-Ala ch dng ha cht no di y

A. NaCl. B. NaOH. C. qu tm. D. Cu(OH)2.

Cu 33: Cho cn bng ha hc sau: NO2 (nu ) N2O4 (khng mu); H < 0. Hi khi nhng bnh

ng hn hp kh trn vo nc th:

A. mu nu nht dn. B. mu nu m dn.

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C. mu gi nguyn nh ban u. D. c A, B, C u sai.

Cu 34: Cho 4,48 lt kh CO2 (ktc) vo 100ml dung dch hn hp gm NaOH 1M v Ca(OH)2 1M.

Sau khi phn ng hon ton th khi lng kt ta thu c l

A. 10g. B. 20g. C. 15g. D. 30g.

Cu 35: Cho phng trnh phn ng: Mg + HNO3 X + N2O + Y. Tng h s (ti gin) ca phn

ng trn khi cn bng l

A. 20. B. 32. C. 24. D. 55.

Cu 36: Khi nh t t n d dung dch HCl vo dung dch hn hp gm a mol NaOH v b mol

NaAlO2, kt qu th nghim c biu din trn th sau:

T l a:b l:

A. 2:1 B. 2:7 C. 4:7 D. 2:5

Cu 37: Hi thu ngn rt c, bi vy khi lm v nhit k thu ngn th cht bt c dng rc

ln thu ngn ri gom li l:

A. lu hunh B. mui n C. ct D. vi sng

Cu 38: C bn l mt nhn ng cc dung dch sau: anehit axetic, glucoz, saccaroz, axit axetic.

Thuc th no c th dng xc nh dung dch c trong mi l.

A. kim loi Na B. AgNO3 trong dung dch NH3

C. Cu(OH)2 trong dung dch NaOH D. CuO, nung nng

Cu 39: Cho cc cht c cha vng benzen v c phn t l C7H9N. Hy cho bit c bao nhiu cht

tc dng vi dung dch Br2 cho kt ta trng?

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

Cu 40: Cho cc phn ng sau: (1) Cu(NO3)2 c a ot0

; (2) NH4NO2 0t

; (3) NH3 + O2

PtC ,8500

; (4) NH3 + Cl2 ; (5) NH4Cl 0t

; (6) NH3 + CuO 0t

. Cc phn ng u to

kh N2 l:

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

Cu 41: Thu phn pentapeptit X thu c cc ipeptit l Ala-Gly; Glu-Gly v tripeptit l Gly-Ala-

Glu. Vy cu trc ca peptit X l:

A. Glu-Ala-Gly-Ala-Gly B. Ala-Gly-Ala-Glu-Gly

C. Ala-Gly-Gly-Ala-Glu D. Gly-Gly-Ala-Glu-Ala

Cu 42: Nguyn t H c cc ng v 1H ; 2H ; 3H. Nguyn t Cl c cc ng v 35Cl v 37Cl. S loi

phn t HCl c th c l:

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

Cu 43: Xt phn ng: N2 + 3H2 2NH3. Tc phn ng v c xc nh bi biu thc: v = k.

[N2].[H2]3. Hi tc phn ng s tng bao nhiu ln khi tng p sut chung ca h ln 2 ln:

s mol Al(OH)3

s mol HCl 0 0,8 2,0 2,8

1,2

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A. 4 ln B. 8 ln C. 12 ln D. 16 ln

Cu 44: Thnh phn chnh ca qung photphorit l:

A. Ca(H2PO4)2 B. CaHPO4 C. Ca3(PO4)2 D. NH4H2PO4

Cu 45: Cht X c cng thc CH3-CH(CH3)-CH = CH2. Tn thay th ca X l:

A. 2-metylbut-3-in B. 2-metylbut-3-en C. 3-metylbut-1-in D. 3-metylbut-1-en

Cu 46: Pht biu no sau y khng ng khi so snh tnh cht ha hc ca Al v Cr:

A. Nhm c tnh kh mnh hn crom

B. Nhm v crom u bn trong khng kh v nc

C. Nhm v crom u b th ng ha trong dd H2SO4 c ngui

D. Nhm v crom u phn ng vi dd HCl theo cng t l s mol

Cu 47: Cho cc cht: axit propionic (X), axit axetic (Y), ancol etylic (Z) v imetyl ete (T). Dy cc

cht c sp xp theo chiu tng dn nhit si l:

A. T, Z, Y, X B. Z, T, Y, X C. T, X, Y, Z D. Y, T, X, Z

Cu 48: Dy gm cc ion u oxi ha c kim loi Fe l:

A. Fe3+

, Cu2+

, Ag+

B. Zn2+

, Cu2+

, Ag+

C. Cr2+

, Au3+

, Fe3+

D. Cr2+

, Cu2+

, Ag+

Cu 49: t chy hon ton 0,1mol mt ancol n chc trong 0,5mol O2 (d) thu c tng s mol

kh v hi bng 0,75mol. Khi lng ancol ban u em t chy l:


Cu 50: Dng c di y c dng iu ch v nghin cu phn ng ca SO2 vi dung dch

baz:

Cc cht A, B, C v D ln lt l:

A. HCl, Na2SO3, SO2, Ca(OH)2 B. Na2SO3, H2SO4, SO2, Ca(OH)2

C. HCl, FeS, SO2, Ca(OH)2 D. HCl, Na2CO3, CO2, Ca(OH)2

--------- Ht ---------

Th sinh khng c s dng ti liu. Cn b coi thi khng gii thch g thm.

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Sr = 88; Ag = 108; Sn = 119; Cs = 133; Ba = 137; Pb = 207; I = 127; F = 19.

Cu 1: Khi nh t t n d dung dch NaOH vo dung dch hn hp gm a mol H2SO4 v b mol

AlCl3, kt qu th nghim c biu din trn th sau:

T l a:b l:

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

Cu 2: Cho cc mnh sau:

(1) Nc cng c cha nhiu ion Ca2+, Mg2+.

(2) C th lm mm nc cng ton phn bng dung dch K2CO3.

(3) Phn bit nc cng tm thi v nc cng vnh cu bng cch un nng.

(4) Lm mm nc cng tm thi bng dung dch HCl.

(5) Dng NaOH va lm mm nc cng tm thi.

S mnh ng l

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

Cu 3: Hn hp X gm cc cht Y (C3H10N2O4) v cht Z (C4H8N2O3); trong Y l mui ca axit a

chc, Z l ipeptit mch h. Cho 28,08 gam X tc dng vi dung dch NaOH d, un nng, thu c

0,12mol hn hp kh u lm xanh qu tm m. Mt khc 28,08 gam X tc dng vi dung dch HCl d

thu c m gam cht hu c. Gi tr ca m l:

A. 37,65 B. 39,15 C. 38,85 D. 36,54

Cu 4: Thy phn hon ton 0,1mol este X bng NaOH, thu c mui ca axit cacboxylic v 6,2

gam ancol Z. Mui thu c c phn ng trng bc, Z ha tan Cu(OH)2 cho dung dch mu xanh lam.

Cng thc cu to ca X l:

A. HCOOCH2CH2CH2OOCH B. HCOOCH2CH(CH3)OOCH

C. HCOOCH2CH2OOCCH3 D. CH3COOCH2CH2OOCCH3

Cu 5: Chia 52,4 gam hn hp 2 anehit n chc l ng ng k tip thnh 2 phn bng nhau:

- Phn I tc dng vi lng d dung dch AgNO3 trong NH3 un nng thu c 108 gam Ag.

so mol Al(OH)3

s mol NaOH 0 0,8 2,0 2,8

0,4

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- Phn II tc dng hon ton vi H2 d (xc tc Ni, t0) thu c hn hp X gm 2 ancol Y v Z (MY <

MZ). un nng X vi H2SO4 c 1400c thu c 12,09 gam hn hp 3 ete. Bit hiu sut phn ng

to ete ca Y l 60%. Hiu sut phn ng to ete ca Z l:

A. 40% B. 60% C. 30% D. 50%

Cu 6: Mt bnh kn ch cha cc cht: axetilen (0,3mol), vinyl axetilen (0,5mol) v hidro (0,8mol) v

mt t bt Niken. Nung nng bnh mt thi gian, thu c hn hp kh X c t khi so vi H2 l 17,7.

Kh X phn ng va vi 0,7mol AgNO3 trong dung dch NH3 thu c m gam kt ta v 10,08 lit

hn hp kh Y (ktc). Kh Y phn ng ti a vi 0,1mol Br2 trong dung dch. Gi tr ca m l:

A. 99,8 B. 99,6 C. 98,4 D. 98,2

Cu 7: t chy hon ton 23,8 gam hn hp X gm axit acrylic, axit adipic, axit propanoic v

glixerol (trong s mol axit acrylic bng s mol axit propanoic) bng O2 d thu c hn hp Y gm

kh v hi. Dn Y vo dung dch cha 0,7 mol Ba(OH)2 thu c 98,5 gam kt ta v dung dch Z.

un nng Z li thy xut hin kt ta. Cho 23,8 gam hn hp X tc dng vi 300ml dung dch KOH

1M, sau khi cc phn ng xy ra hon ton, c cn dung dch thu c cht rn khan c khi lng l:


Cu 8: ng dng khng ng ca crom l:

A. iu kin thng, crom to lp mng oxit mn, bn chc nn c dng m bo v thp.

B. Crom l kim loi rt cng c th dng ct thy tinh.

C. Crom l kim loi nh, nn c s dng to cc hp kim dng trong ngnh hng khng.

D. Crom lm hp kim cng v chu nhit, nn dng to thp cng, khng g, chu nhit.

Cu 9. M t no di y v tnh cht vt l ca nhm l cha chnh xc:

A. Mm, d ko si v dt mng B. Dn nhit v in tt, tt hn Fe, Cu

C. L kim loi nh D. Mu trng bc

Cu 10: So vi nguyn t phi kim cng chu k, nguyn t kim loi

A. thng c bn knh nguyn t nh hn.

B. thng c s electron cc phn lp ngoi cng nhiu hn.

C. thng c nng lng ion ho nh hn.

D. thng d nhn electron trong cc phn ng ho hc.

Cu 11: T l v s nguyn t ca hai ng v A v B trong t nhin ca nguyn t X l 27: 23. ng

v A c 35 proton v 44 ntron, ng v B c nhiu hn ng v A 2 ntron. Nguyn t khi trung bnh

ca nguyn t X l

A. 79,92. B. 80,01. C. 81,86. D. 79,35.

Cu 12: Phn ng: Cu + 2FeCl3 2FeCl2 + CuCl2 chng t

A. ion Fe2+ c tnh oxi ho mnh hn ion Fe3+.

B. ion Fe3+ c tnh oxi ho mnh hn ion Cu2+.

C. ion Fe3+ c tnh oxi ho yu hn ion Cu2+.

D. ion Fe3+ c tnh kh mnh hn ion Fe2+.

Cu 13: Trn V1 lt dung dch axit c pH = 5 vi V2 lt dung dch baz c pH = 9 thu c dung dch

c pH = 8. T l V1: V2 bng

A. 9: 10. B. 11: 9. C. 9: 11. D. 10: 9.

Cu 14: Nguyn t Zn c bn knh nguyn t v khi lng mol nguyn t ln lt l 0,138 nm v 65

g/mol. Bit Zn ch chim 72,5% th tch tinh th. Khi lng ring (g/cm3) ca tinh th Zn l

A. 7,11. B. 9,81. C. 5,15. D. 7,79.

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Cu 15: Trong cc polime sau, polime no khng thuc loi tng hp?

A. PVC B. T xenluloz axetat

C. T capron D. Polistiren

Cu 16: t chy hon ton 29,6 gam hn hp X gm CH3COOH, CxHyCOOH v (COOH)2 thu c

14,4 gam H2O v m gam CO2. Mt khc 29,6 gam hn hp X phn ng hon ton vi NaHCO3 thu

c 11,2 lt (ktc) kh CO2. Gi tr ca m l

A. 33,0. B. 48,4. C. 44,0. D. 52,8.

Cu 17: Cu hnh electron ng l:

A. 26Fe: 1s22s

22p

63s

23p

63d

44s

2 B. 26Fe: 1s

22s

22p

63s

23p

64s

23d

6

C. 26Fe2+

: 1s22s

22p

63s

23p

64s

23d

4 D. 26Fe

3+: 1s

22s

22p

63s

23p

63d

5

Cu 18: Cng thc tng qut ca xeton khng no, mch h, hai chc, c cha mt lin kt ba trong

phn t l:

A. CnH2n2O2. B. CnH2n4O2. C. CnH2n6O2. D. CnH2n8O2.

Cu 19: Nit v photpho l hai phi kim thuc nhm VA, nhn xt no sau y ng:

A. Hai nguyn t u c mc oxi ha +5, ha tr V trong hp cht.

B. m in ca photpho nh hn ca nit nn iu kin thng, phn t photpho bn hn

phn t nit.

C. Phn t NH3 km bn hn phn t PH3.

D. Axit H3PO4 kh b kh, khng c tnh oxi ha nh HNO3.

Cu 20: Cho kh CO i qua ng s cha 16 gam Fe2O3 un nng, sau phn ng thu c hn hp rn

X gm Fe, FeO, Fe3O4 v Fe2O3. Ho tan hon ton X bng HNO3 c, nng, d thu c dung dch

Y. C cn dung dch Y th khi lng mui khan thu c l

A. 24,2 g. B. 36 g. C. 40 g. D. 48,4 g.

Cu 21: Cho cc dung dch sau: anilin (1), metylamin (2), glyxin (3), lysin (4), natri phenolat (5),

H2N-CH2-COONa (6). S dung dch lm qu tm i thnh mu xanh l

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

Cu 22: Oxi ho hon ton a gam hn hp Mg, Zn v Al thu c b gam hn hp oxit. Cho hn hp

kim loi trn tc dng vi lng d dung dch H2SO4 long thu c V lt kh (ktc). V c gi tr tnh

theo a, b l

A. . B. . C. . D. .

Cu 23: Cho cc cht: CH2 = CH CH = CH2; CH3 CH2 CH = C(CH3)2; CH3 CH = CH CH =

CH2; CH3 CH = CH2; CH3 CH = CH COOH. S cht c ng phn hnh hc l:

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

Cu 24: Trn 2,7 gam Al vi 20 gam hn hp Fe2O3 v Fe3O4 ri tin hnh phn ng nhit nhm, thu

c hn hp X. Ho tan X trong dung dch HNO3 c nng d thu c 0,36 mol NO2 (l sn phm

kh duy nht). Khi lng ca Fe2O3 trong hn hp ban u l

A. 6,08 gam. B. 16,36 gam. C. 10,72 gam. D. 1,44 gam.

Cu 25: Dy gm cc kim loi c iu ch theo phng php in phn nng chy cc hp cht ca

chng l:

A. Na, Ca, Zn B. Na, Ca, Al C. Fe, Cu, Al D. Na, Cu, Al

Cu 26: Dy gm cc cht u tc dng vi ancol etylic l

A. HBr (t0), Na, CuO (t

0), CH3COOH (xc tc).

/305

B. NaOH, K, MgO, HCOOH (xc tc).

C. Ca, CuO (t0), C6H5OH (phenol), HOCH2CH2OH

D. Na2CO3, CuO (t0), CH3COOH (xc tc), (CH3CO)2O

Cu 27: Nhit phn hon ton hn hp hai mui nitrat, thu c cht rn X. Nu cho X tc dng vi

lng d dung dch HCl long th thy X tan mt phn. Hai mui nitrat l

A. Fe(NO3)2, Al(NO3)3. B. AgNO3, Au(NO3)3.

C. KNO3, Cu(NO3)2. D. Cu(NO3)2, AgNO3.

Cu 28: Trong cc dung dch: HNO3, NaCl, Na2SO4, Ca(OH)2, KHSO4, Mg(NO3)2, s dung dch tc

dng c vi dung dch Ba(HCO3)2 l

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

Cu 29: Cho 9,86 gam hn hp gm Mg v Zn vo mt cc cha 430 ml dung dch H2SO4 1M. Sau

khi phn ng hon ton, thm tip vo cc 1,2 lit dung dch hn hp gm Ba(OH)2 0,05M v NaOH

0,7M, khuy u cho phn ng hon ton, ri lc ly kt ta v nung nng n khi lng khng i

th thu c 26,08 gam cht rn. Khi lng magie trong hn hp ban u l:


Cu 30: Mt hp cht hu c X c thnh phn khi lng ca C, H, Cl ln lt l 14,28%, 1,19% v

84,53%. S ng phn cu to ca X l

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

Cu 31: Cho cc cht l O2, SO2, H2O2, CO2, ZnS, S, H2SO4, FeCl2. Cc cht va c tnh kh, va c

tnh oxi ha l

A. SO2, ZnS, FeCl2 B. H2O2, S, SO2, CO2

C. CO2, Fe2O3, O2, H2SO4 D. FeCl2, S, SO2, H2O2

Cu 32: t chy hon ton 2,6 gam hn hp cht X gm mui natri ca hai axit cacboxylic no n

chc k tip nhau trong dy ng ng thu c 1,59 gam Na2CO3 v hn hp kh Y gm CO2, H2O.

Cng thc phn t ca hai mui trong hn hp X v khi lng hn hp Y l

A. CH3COONa; C2H5COONa; 3,4 gam. B. C2H5COONa; C3H7COONa; 3,4 gam.

C. CH3COONa; C2H5COONa; 4,3 gam. D. C4H9COONa; C3H7COONa; 3,4 gam.

Cu 33: Cho tt c cc ng phn mch h, c cng cng thc phn t C2H4O2 ln lt tc dng vi

Na, NaOH v NaHCO3. S phn ng xy ra l

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

Cu 34: Thy phn 0,01 mol este ca mt ancol a chc vi mt axit n chc cn 1,2 gam NaOH.

Mt khc khi thy phn 4,36 gam este th cn 2,4 gam NaOH v thu c 4,92 gam mui. Cng

thc ca este l

A. (CH3COO)3C3H5 B. (C2H3COO)3C3H5 C. C3H5(COOCH3)3 D. C3H5(COOC2H3)3

Cu 35: Tm tn gi ng ng vi cu to sau:

CH3

C2H

5

A. o-etylmetylbenzen B. o-metyletylbenzen

C. 1 Etyl 2 Metylbenzen D. C A v C u ng

Cu 36: Cho glixerol phn ng vi hn hp axit bo gm C17H35COOH, C17H33COOH v

C15H31COOH. S trieste ti a c to ra l

A. 6. B. 18. C. 9. D. 27.

/305

Cu 37: Cho phng trnh ha hc:

73 2 2 2 2 4 3 2 4 2 4 23CH CH OH K Cr O H SO CH CHO Cr SO K SO H O

Sau khi cn bng vi h s nguyn n gin nht th tng h s cc cht trc phn ng l

A. 7. B. 8. C. 6. D. 11.

Cu 38: t chy hon ton amin X, bc I c kh nng to kt ta vi dung dch brom thu c 3,08

gam CO2, 0,81 gam H2O v 112 ml N2 (ktc). Cng thc cu to ca X l

A. C6H5NH2 B. C6H5NHCH3 C. C6H5CH2NH2 D. CH3C6H4NH2

Cu 39: Cho s sau:

Xenluloz X Y Z T.

Cht T c tn gi l

A. vinyl acrylat. B. etyl axetat. C. metyl acrylat. D. vinyl axetat.

Cu 40: iu no sau y khng ng khi ni v xenluloz:

A. Tan trong dung dch [Cu(NH3)4](OH)2 B. C th dng iu ch ancol etylic

C. Dng sn xut t enang D. To thnh este vi anhirit axetic

Cu 41: Thy phn hon ton 68,4 gam mantoz ri cho ton b sn phm tc dng vi lng d

Cu(OH)2/NaOH, un nng th thu c x gam kt ta, cn nu cho ton b lng sn phm ny tc

dng vi nc brom d th c y gam brom tham gia phn ng. Gi tr ca x v y ln lt l

A. 57,6 v 64. B. 28,8 v 64. C. 28,8 v 32. D. 57,6 v 32.

Cu 42: Hn hp X gm hai ancol thuc cng dy ng ng c khi lng 30,4 gam. Chia X thnh hai

phn bng nhau.

- Phn (1): Cho tc dng vi K d thu c 3,36 lt kh H2 (ktc).

- Phn (2): Tch nc hon ton 1700C, xc tc H2SO4 c thu c mt anken. Lng anken ny

lm mt mu dung dch cha 32 gam Br2.

Hai ancol trn l:

A. CH3OH v C2H5OH. B. C2H5OH v C3H7OH.

C. CH3OH v C4H9OH. D. CH3OH v C3H7OH.

Cu 43: Hai este X v Y (phn t u cha vng benzen) c cng thc phn t l C9H8O2. X v Y u

tc dng c vi Br2 theo t l mol 1:1. X tc dng vi dung dch NaOH d cho mt mui v mt

anehit. Y tc dng vi dung dch NaOH d cho hai mui v nc. Cng thc cu to ca X v Y c th

l:

A. HOOCC6H4CH=CH2 v CH2=CHCOOC6H5.

B. C6H5COOCH=CH2 v C6H5 CH=CHCOOH.

C. HCOOC6H4CH=CH2 v HCOOCH=CHC6H5.

D. C6H5 COOCH=CH2 v CH2=CHCOOC6H5.

Cu 44: Nhn xt no sau y khng ng:

A. C th dng nc brom phn bit phenol, anehit axetic, etanol v xiclohexanol.

B. CH2=CH-CH=CH-CH2Cl c ng phn hnh hc.

C. Cc amino axit u l cht rn iu kin thng.

D. Tt c cc nhm th c sn trong vng benzen nh hng th H v tr ortho v para u

lm tng kh nng phn ng th H vng benzen

Cu 45: Cho m gam hn hp X gm CH4, C2H2, C2H4, C2H6 v H2 qua ng ng Ni, nung nng thu

c hn hp kh Y. Dn ton b hn hp Y t t qua bnh ng dung dch brom (d) thy khi

/305

lng bnh tng 0,8 gam v c hn hp kh Z thot ra. t chy hon ton hn hp Z thu c 0,5

mol CO2 v 0,8 mol H2O. Gi tr ca m l

A. 37,2. B. 7,32. C. 6,64. D. 8,4.

Cu 46: Cho kh N2 tc dng vi kh H2 c bt Fe xc tc to v p sut p th tc phn ng l v.

Nu gi nguyn nhit v tng p sut ln 2p th tc ca phn ng

2 2 3N k 3H k 2NH k s tng ln

A. 2 ln. B. 4 ln. C. 8 ln. D. 16 ln.

Cu 47: Ho tan hon ton m gam hn hp gm Mg, Fe, Cu trong dung dch HNO3 thu c V lt hn

hp kh D (ktc) gm NO2 v NO ( ktc, khng cn sn phm kh no khc). T khi hi ca D so

vi hiro bng 18,2. Tng s gam mui khan to thnh theo m v V l

A. V

m22,4

B. V

m22,4

C. 341V

m +56

D. V

m -7,75

Cu 48: Bit rng trong dung dch mui icromat lun lun c cn bng:

Cr2O72-

+ H2O 2CrO42-

+ 2H+

(da cam) (vng)

Nu thm dung dch HBr c, d vo dung dch K2Cr2O7 th dung dch chuyn thnh

A. mu da cam. B. mu vng. C. mu xanh lc. D. khng mu.

Cu 49: Trong t nhin, c nhiu ngun cht hu c sau khi b thi ra to ra kh H2S. Tuy nhin,

trong khng kh hm lng H2S rt t v

A. H2S tan c trong nc.

B. H2S b CO2 trong khng kh oxi ho thnh cht khc .

C. H2S b oxi trong khng kh oxi ho chm thnh cht khc.

D. H2S b phn hy nhit thng to ra lu hunh v hiro.

Cu 50: iu ch kh Cl2 trong phng th nghim, mt bn lp dng c theo hnh v:

im khng chnh xc trong h thng trn l:

A. Cch cp bnh cu

B. Cch lp ng dn kh i vo v i ra khi bnh ng H2SO4

C. Cch y bnh thu kh bng bng tm xt

D. Tt c cc trn

-------- Ht ---------


HCl

MnO2

H2SO4

c

Bng

tm xt

Cl2

/305






Sr = 88; Ag = 108; Sn = 119; Cs = 133; Ba = 137; Pb = 207; I = 127; F = 19.

Cu 1: Cho m gam ancol X no n chc mch h bc I i qua CuO (d) c t nng. Sau phn ng xy ra hon ton thy khi lng cht rn gim i 0,32 gam. Hn hp hi thu c c t khi so vi hiro l 19. Gi tr ca m l

A. 1,2. B. 0,92. C. 0,78. D. 1,52.

Cu 2: Cho 0,25mol anehit X phn ng ti a vi 0,5mol H2 thu c 19 gam ancol. Mt khc 3,6 gam X tc dng vi lng d dung dch AgNO3 trong NH3 thu c m gam Ag. Gi tr ca m l:

A. 21,6 B. 16,8 C. 32,4 D. 10,8

Cu 3: Cho X, Y l 2 cht thuc dy ng ng ca axit acrylic v MX < MY; Z l ancol c cng s nguyn t C vi X; T l este 2 chc c to bi X, Y v Z. t chy hon ton 11,16 gam hn hp E gm X, Y, Z v T cn va 13,216 lit kh O2 (ktc) thu c kh CO2 v 9,36 gam nc. Mt khc 11,16 gam E tc dng ti a vi dung dch cha 0,04 mol Br2. Khi lng mui thu c khi cho cng lng E trn tc dng ht vi dung dch KOH d l:


Cu 4: Thy phn 37 gam hai este c cng cng thc C3H6O2 bng dung dch NaOH d. Chng ct dung dch sau phn ng thu c hn hp ancol Y v cht rn khan Z. un nng Y vi H2SO4 c 140

0c thu c 15,7 gam hn hp cc ete. Bit cc phn ng xy ra hon ton. Khi lng mui trong Z l:


Cu 5: Cho V ml dung dch cha Ba(OH)2 0,2M v NaOH 0,1M vo 200 ml dung dch Al2(SO4)3 0,1M th thu c lng kt ta ln nht. Gi tr ca V v khi lng kt ta thu c l

A. 300 ml v 14,76 gam. B. 300 ml v 14,304 gam.

C. 240 ml v 14,76 gam. D. 240 ml v 14,304 gam.

Cu 6: Cht hu c X c cng thc phn t l C4H7O2Cl. Ngi ta thy 1 mol X tc dng c vi 2 mol NaOH, to ra ancol a chc. Cht X c cng thc cu to l

A. CH3COOCH2CH2Cl. B. ClCH2COOCH2CH3.

C. CH3COOCH(Cl)CH3. D. HCOOCH(Cl)CH2CH3.

Cu 7: Cho dy chuyn ha: Toluen 2Br ,Fe,1:1 X

NaOH, t,p Y

HCl Z. Cht Z trong dy

chuyn ha ny l:

A. benzyl clorua. B. p-crezol. C. m-crezol. D. p-clobrombenzen.

Cu 8: Cho cc cht: H2S, MnO2, KClO3, NH3, KMnO4, K2Cr2O7, CaOCl2, H2SO4 c. S cht th hin tnh oxi ho khi cho tc dng vi HCl (trng thi kh hoc dung dch) l:

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

Cu 9: Hn hp X gm hai cht hu c c cng cng thc phn t C2H4O2 v c cng s mol. Cho 18 gam hn hp X tc dng va vi dung dch cha 12 gam NaOH, c cn dung dch to thnh th thu c m gam mui khan. Gi tr ca m l

A. 25,4. B. 22,5. C. 8,2. D. 13,6.

Cu 10: t chy hon ton 8,4 gam Fe thu c mt oxit st, ha tan hon ton oxit ny cn va dung dch cha 0,2 mol H2SO4 long. Cng thc v khi lng oxit st l

A. FeO v 11,6 gam. B. Fe2O3 v 10,0 gam.

/305

C. Fe3O4 v 11,6 gam. D. FeO v 10 gam.

Cu 11: Cho s chuyn ha: Benzen X Y C6H4(NH2)2, trong X v Y l nhng sn phm chnh. Cht hu c Y l:

A. m-initrobenzen. B. o-initrobenzen. C. p-initrobenzen. D. m-nitrotoluen.

Cu 12: Cho 100 gam hn hp gm Fe, Cr, Al tc dng ht vi dung dch NaOH thu c 5,04 lt kh (ktc) v phn khng tan X. Cho X tan ht trong dung dch HCl th thu c 38,5952 lt kh (ktc). Phn trm v khi lng ca Cr trong hn hp u l

A. 13,988%. B. 82,30%. C. 45,25%. D. 4,05%.

Cu 13: Dy cc cht u tan trong dung dch HCl l

A. AgCl, CrO, SiO2, HgS. B. CrO, Cr2O3, FeS, ZnS.

C. PbS, HgS, SiO2, CuS. D. AgCl, Cr2O3, SiO2, FeS.

Cu 14: Hn hp X gm Fe, FeO v Fe2O3. Cho mt lung kh CO i qua ng s ng m gam X c t nng. Sau phn ng thu c 64 gam cht rn Y v 11,2 lt hn hp kh Z (ktc) c t khi i vi hiro l 20,4. Gi tr ca m l

A. 70,4. B. 75,25. C. 56,00. D. 65,75.

Cu 15: S ng phn l amino axit c cng cng thc phn t C4H7O4N l

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

Cu 16: Cho m gam P2O5 tc dng vi 100ml dung dch NaOH 2M, sau khi cc phn ng xy ra hon ton thu c dung dch X. C cn dung dch X thu c 109m/71 gam cht rn khan. Gi tr ca m l:

A. 42,6 B. 21,3 C. 14,2 D. 28,4

Cu 17: Cho 7,2 gam bt Mg tan ht trong dung dch hn hp HCl (d) v KNO3 thu c dung dch X cha m gam mui v 2,688 lit kh Y (ktc) gm N2 v H2 c khi lng 0,76 gam. Gi tr ca m l:

A. 29,87 B. 24,03 C. 32,15 D. 36,28

Cu 18: Tng s lin kt (xichma) trong mt phn t ankin c cng thc tng qut CnH2n-2 l

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

Cu 19: Thc hin phn ng hiro ha hn hp X gm C2H6 v C3H8 (C2H6 chim 20% v th tch) thu c hn hp Y c t khi i vi H2 l 13,5. Nu cc th tch kh o cng iu kin v hai ankan b hiro ha vi hiu sut nh nhau th hiu sut ca phn ng l

A. 52,59%. B. 55,75%. C. 49,27%. D. 50,25%.

Cu 20: Cho t t dung dch HCl vo dung dch cha a mol Ba(AlO2)2 v b mol Ba(OH)2. Kt qu th nghim c biu din trn th sau:

T l a:b l:

A. 7:4 B. 4:7 C. 2:7 D. 7:2

Cu 21: Dy gm cc ion c sp xp theo chiu tng tnh kh l:

A. S2-

, F-, Cl

-, Br

-, I

- B. F

-, Cl

-, Br

-, I

-, S

2-

C. S2-

, I-, Br

-, Cl

-, F

- D. I

-, Br

-, Cl

-, F

-, S

2-

Cu 22: Nhm c cu to mng tinh th:

A. lc phng. B. lp phng tm din.

s mol Al(OH)3

s mol HCl 0 0,8 2,0 2,8

1,2

/305

C. lc phng tm khi. D. lp phng tm khi.

Cu 23: Cho Na+ (Z = 11), Mg

2+ (Z = 12), O

2- (Z = 8), F

- (Z = 9). Bn knh cc ion gim dn theo th

t t tri sang phi l

A. Na+, Mg

2+, F

-, O

2-. B. F

-, O

2-, Na

+, Mg

2+.

C. Mg2+

, Na+, F

-, O

2-. D. O

2-, F

-, Na

+, Mg

2+.

Cu 24: Trong cc loi t di y, loi no l t nhn to:

A. T axetat. B. T tm. C. Vinilon. D. T capron.

Cu 25: Cho phn ng ha hc: Br2 + HCOOH 2HBr + CO2. Nng ban u ca HCOOH l 0,010 mol/lt, sau 40 giy nng ca HCOOH l 0,008 mol/lt. Tc trung bnh ca phn ng trong khong thi gian 40 giy tnh theo HCOOH l:

A. 5,0.10-4

mol/ (l.s). B. 2,5.10-5

mol/ (l.s). C. 2,0.10-5

mol/ (l.s). D. 5,0.10-5

mol/ (l.s).

Cu 26: Cho cc cht: C2H5NH2 (1), C6H5NH2 (2), NH3 (3), NaOH (4), O2N-C6H4NH2 (5). Tnh baz ca cc cht gim dn theo th t t tri sang phi l

A. (5), (2), (3), (1), (4). B. (4), (1), (3), (5), (2).

C. (2), (5), (3), (1), (4). D. (4), (1), (3), (2), (5).

Cu 27: Hn hp X gm 3 peptit u mch h c t l mol tng ng l 1 : 1 : 3. Thy phn hon ton m gam X, thu c hn hp sn phm gm 6,23 gam alanin; 6,00 gam glyxin v 9,36 gam valin. Bit tng s lin kt peptit trong phn t ca ba peptit trong X ln hn 8. Gi tr ca m l:

A. 18,35 B. 18,80 C. 18,89 D. 19,07

Cu 28: Lng cn 90o thu c t 1 tn nguyn liu cha 80% tinh bt (cho DC2H5OH = 0,8 g/ml v hiu sut 80%) l:

A. 650,75 lt. B. 554,3 lt. C. 504,8 lt. D. 623,75 lt.

Cu 29: Khi in phn dung dch CuSO4 vi anot l Cu th

A. nng mol CuSO4 tng, anot tan. B. nng mol CuSO4 khng i, catot tan.

C. nng mol CuSO4 tng, catot tan. D. nng mol CuSO4 khng i, anot tan.

Cu 30: Dy trong tt c cc cht u lm mt mu dung dch nc brom l

A. Phenol, toluen, stiren. B. Benzen, anilin, stiren.

C. Toluen, phenol, anilin. D. Phenol, anilin, stitren.

Cu 31: Cho cc oxit: CrO, Al2O3, ZnO, Cr2O3, CuO, CrO3. S oxit tan trong dung dch HCl, khng tan trong dung dch NaOH l:

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

Cu 32: Cho dy cc hp cht thm: p-HO-C6H4-COOH, p-HO-CH2-C6H4-OH, p-HO-C6H4-COOC2H5, p-HCOO-C6H4-OH, p-CH3O-C6H4-OH. C bao nhiu cht trong dy tha mn ng thi hai iu kin sau: Ch tc dng vi NaOH theo t l mol 1:1; (b) Tc dng vi Na (d) to ra s mol H2 bng s mol cht phn ng:

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

Cu 33: Cho cc cp cht:

(1) dung dch FeCl3 v Ag.

(2) dung dch Fe(NO3)2 v dung dch AgNO3.

(3) S v H2SO4 (c, nng).

(4) CaO v H2O

(5) dung dch NH3 + CrO3.

(6) S v dung dch H2SO4 long.

S cp cht c xy ra phn ng l

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

Cu 34: Phn ln km c dng cho ng dng

A. ch to dy dn in v cc thit b in khc.

/305

B. ch to cc pin in ha (nh pin Zn-Mn c dng ph bin hin nay).

C. ch to cc hp kim c bn cao, chng n mn.

D. bo v b mt cc vt lm bng st thp, chng n mn.

Cu 35: Cho cc cp cht sau:

(1) FeCl3 + H2S (2) CuCl2 + H2S (3) Fe3O4 + HCl

(4) Fe3O4 + H2SO4 c (5) Fe3O4 + H2SO4 long (6) CuS + HNO3

S cp cht phn ng to ra cht kt ta l

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

Cu 36: t chy hon ton hp cht hu c no, n chc X cn va ht 3,08 lt O2 thu c 1,8 gam H2O v 2,24 lt CO2. Nu t khi hi ca X i vi oxi l 2,25 v cc th tch kh o ktc th s cng thc cu to ca X l:

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

Cu 37: Nhng mt thanh magie vo dung dch c cha 0,8 mol Fe(NO3)3 v 0,05 mol Cu(NO3)2. Sau mt thi gian, ly thanh kim loi ra, ra sch, cn li thy khi lng tng 11,6 gam so vi thanh kim loi ban u. Khi lng magie phn ng l

A. 6,96 gam. B. 20,88 gam. C. 25,2 gam. D. 24 gam.

Cu 38: Dy gm cc ion khng phn ng c vi ion CO32-

l

A. H+, Na

+, K

+. B. NH4

+, Na

+, K

+. C. Na

+, Ca

2+, K

+. D. K

+; NH4

+; Mg

2+.

Cu 39: Hn hp X gm Cu, Fe2O3 v CuO trong oxi chim 12,5% khi lng hn hp. Cho 11,2 lit kh CO (ktc) i qua m gam X un nng, sau mt thi gian thu c cht rn Y v hn hp kh Z c t khi so vi H2 bng 18,8. Ha tan hon ton Y trong dung dch HNO3 c, nng d thu c dung dch cha 2,8125m gam mui v 35,84 lit kh NO2 (ktc, l sn phm kh duy nht). Gi tr m gn gi tr no nht sau y:

A. 64,1 B. 57,6 C. 76,8 D. 51,2

Cu 40: Dy gm cc cht u tc dng c vi glixerol l (cc cht xc tc c ):

A. Mg, Cu(OH)2; HBr; HNO3. B. Na, MgO, HBr, HNO3, CH3COOH.

C. Na, NaOH, Cu(OH)2, HBr, HNO3. D. Na, CuO, CH3COOH, HNO3.

Cu 41: Pht biu khng ng l:

A. thy phn (xt H+, to) saccaroz cng nh mantoz u cho cng 1 monosaccarit.

B. sn phm thy phn xenluloz (H+, to) c th tham gia phn ng trng gng.

C. dung dch fructoz ha tan c Cu(OH)2.

D. dung dch mantoz tc dng c vi Cu(OH)2/OH- cho kt ta gch.

Cu 42: Hp cht hu c X cha C, H v N, trong N chim 23,73% v khi lng. X tc dng vi dung dch HCl theo t l s mol 1:1. S ng phn cu to ca X l

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

Cu 43: Phn ng no di y l sai:

A. Cu + 2FeCl3 CuCl2 + 2FeCl2 B. Cu + H2SO4 CuSO4 + H2

C. Cu + Cl2 CuCl2 D. Cu + 1/2O2 + 2HCl CuCl2 + H2O

Cu 44: Cho dung dch BaCl2, nc brom, dung dch Ba(OH)2, dung dch NaCl, dung dch KMnO4, dung dch NaOH. Ch dng mt dung dch duy nht phn bit c hai kh SO2 v SO3. S lng cc dung dch c th tha mn l

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

Cu 45: Nhng vng nc ging khoan khi mi mc nc ln th thy nc trong, nhng lu li thy nc c, c mu nu, vng l do:

A. Nc c ion Fe2+ nn b oxi ha bi khng kh to ra Fe(OH)3.

B. Nc c cc cht bn.

C. Nc cha nhiu ion Mg2+ v Ca2+ nn to kt ta vi CO2.

D. Tt c u sai.

/305

Cu 46: Xt cn bng ho hc ca cc phn ng sau: 1. H2 (k) + I2 (k) 2HI(k); 2. 2SO2(k) + O2(k) 2SO3 (k); 3. CaCO3 (r) CaO (r) + CO2 (k); 4. Fe2O3(r) + 3CO(k) 2Fe (r) + 3CO2 (k); 5. N2 (k) + O2 (k) 2NO (k). Khi tng p sut cc phn ng cc cn bng ha hc khng b dch chuyn l:

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

Cu 47: Khi nhit phn hon ton 100g mi cht KClO3 (xc tc MnO2), KMnO4, KNO3 v AgNO3 th cht to c lng oxi ln nht l:

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

Cu 48: Trong s cc cht di y, cht no c nhit si cao nht:

A. C2H5OH B. HCOOCH3 C. CH3COOH D. CH3CHO

Cu 49: Cho dy cc cht: Al, Al(OH)3, Zn(OH)2, NaHCO3, Na2SO4. S cht trong dy va phn ng vi dd HCl va phn ng vi dd NaOH l:

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

Cu 50: Khi iu ch lng nh cc kh trong phng th nghim c th thu kh bng cch: di khng kh xui bnh, di khng kh p ngc bnh hoc di nc.

(1) (2) (3)

Thu kh bng cch di nc thng c dng vi kh no sau y:

A. N2 B. HCl C. O2 D. C A v C

--------- Ht ---------


/305

THI TH QUC GIA NM 2015

S 4

H v tn th sinh: ...

S bo danh:




Sr = 88; Ag = 108; Sn = 119; Cs = 133; Ba = 137; Pb = 207; I = 127; F = 19.

Cu 1: Thuc chut c thnh phn chnh l Zn3P2. Chut sau khi n phi b thng cht u:

A. Cht ngay ti ch. B. gn ngun nc.

C. gn ngun thc n. D. Khng r ni cht.

Cu 2: Ha tan hn hp gm 9,6 gam CuO v 24 gam Fe2O3 trong 240 ml dung dch H2SO4 2M n

phn ng hon ton. Sau phn ng thy c m gam cht rn khng tan. Gi tr ca m l

A. 4,8 m 2,7. B. 7,2 m 5,6. C. 7,2 m 4,8. D. 7,2 > m > 4,8.

Cu 3: Cho dy cc hp cht sau: glucoz, fructoz, saccaroz, mantoz, glixerol, ancol etylic, axit

aminoaxetic, propaniol-1,3. S hp cht khng c kh nng ha tan Cu(OH)2 nhit thng l:

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

Cu 4: Ho tan hon ton 2,32 gam mt hn hp A gm FeO v Fe2O3 phi dng va 80 ml dung

dch HCl 1M. Kh hon ton 2,32 gam hn hp A bng CO d th thu c hn hp kh B. Cho kh B

tc dng vi dung dch Ca(OH)2 d th thu c bao nhiu gam kt ta?

A. 4 gam. B. 2 gam. C. 10 gam. D. 5 gam.

Cu 5: t chy hon ton 0,1 mol mt axit cacboxylic khng no n chc c mt lin kt i trong

gc hirocacbon, mch h, sn phm chy gm CO2 v H2O c tng khi lng l 16,8 gam. Axit

cacboxylic l

A. axit acrylic. B. axit axetic. C. axit metacrylic. D. axit but-2-en-1-oic.

Cu 6: Cho cc cht: Cu, CuO, Cu2O, CuS, Cu2S, Cu(OH)2, CuCO3, CuSO3 ln lt vo dung dch

HNO3 c, nng. S phn ng oxi ho - kh xy ra l:

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

Cu 7: Cho cc phn ng ha hc sau

(1) FeS + HCl kh X (2) KClO3 ot kh Y

(3) CH3NH3NO3 + NaOH Kh Z (4) KMnO4 + HCl kh G

(5) Cu + H2SO4 c ot kh E (6) Cu + HNO3 c kh H

S lng kh u tc dng c vi dung dch kim l:

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

Cu 8: in phn 100 ml dung dch Cu(NO3)2 2M vi in cc tr trong t giy, cng dng in

khng i 1,93A (hiu sut qu trnh in phn l 100%), thu c cht rn X, dung dch Y v kh Z.

Cho 16,8 gam Fe vo Y, sau khi cc phn ng kt thc thu c 15,99 gam hn hp kim loi v kh

NO (sn phm kh duy nht ca N+5). G i tr ca t l

A. 5000. B. 4820. C. 3610. D. 6000.

Cu 9: Trong s cc ngun nng lng: (1) thy in, (2) gi, (3) mt tri, (4) ho thch; nhng

ngun nng lng sch l:

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

/305

Cu 10: Cho cn bng 2SO2 (k) + O2 (k) 2SO3 (k). Khi tng nhit th t khi ca hn hp kh so

vi H2 gim i. Pht biu ng khi ni v cn bng ny l:

A. Phn ng nghch ta nhit, cn bng chuyn dch theo chiu thun khi tng nhit

B. Phn ng thun ta nhit, cn bng chuyn dch theo chiu nghch khi tng nhit

C. Phn ng nghch thu nhit, cn bng chuyn dch theo chiu thun khi tng nhit

D. Phn ng thun thu nhit, cn bng chuyn dch theo chiu nghch khi tng nhit

Cu 11: Nung nng cho ti phn ng hon ton m gam hn hp Al2O3 v BaCO3 c hn hp X.

Ha tan ht X vo nc d c dung dch Y ch c mt cht tan. Sc CO2 d vo Y, sau un nng

tip cho ti khi t kt ta cc i th thu c 5,295 gam kt ta. Gi tr ca m l


Cu 12: Thy phn hn hp 0,01 mol saccaroz v 0,02mol mantoz mt thi gian thu c dd X

(hiu sut phn ng thy phn mi cht u t 60%). Khi cho ton b X tc dng vi dd AgNO3 d

thu c lng Ag l:

A. 0,088mol B. 0,072mol C. 0,084mol D. 0,090mol

Cu 13: Nhn nh no sau y ng?

(1) Dng CaCO3 lm cht chy loi b SiO2 trong luyn gang.

(2) Dng Mg ch to cc hp kim nh v bn nh uyra,

(3) Mg chy trong kh quyn kh CO2.

(4) Khng dng MgO in phn nng chy iu ch Mg.

(5) Dng ct dp tt m chy c mt Mg.

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

Cu 14: Cho s phn ng

C2H5Cl X CH3COOH Y CH4 Z C2H4 2

0

H

t

T

Cc cht X, Y, Z v T ln lt l

A. C2H5OH, CH3COONa, C2H2 v C2H6. B. C2H5OH, C2H5Cl, CH3COOC2H5 v C3H8.

C. CH3CHO, CH3Cl v C3H8. D. CH3CHO, CH3COONa, C2H2 v C2H6.

Cu 15: Cho 22,4 gam hn hp X gm Cu2S, CuS, FeS2 v Fe tc dng ht vi HNO3 (c nng, d)

thu c V lt kh ch c NO2 ( ktc, sn phm kh duy nht) v dung dch Y. Cho ton b Y vo mt

lng d dung dch Ba(OH)2, thu c 34,95 gam kt ta; cn khi cho ton b Y tc dng vi dung

dch NaOH d thu c 31,2 gam kt ta. Gi tr ca V l:

A. 38,08. B. 26,44. C. 22,4. D. 16,8.

Cu 16: Mt phi kim X tc dng mnh lit vi nc gii phng ra oxi phn t. Phi kim R to ra mt

hp cht vi X. Hp cht ny c tnh oxi ha rt mnh v c t khi so vi khng kh l 1,862. X, Y

ln lt l

A. F v S B. F v O C. Cl v O D. Br v O

Cu 17: Dy cc ion no cho di y ch th hin tnh baz

A. HSO4-, Cl

-, CH3COO

-, PO4

3- B. Al

3+, HS

- , SO3

2-, HPO4

2-

C. CO32-

, S2-

, PO43-

, OH- D. SO4

2-, HSO4

-, NO3

-, NH4

+

Cu 18: Mt hn hp gm mt amin v mt amino axit no, mch h c mt nhm COOH v mt

nhm NH2. t chy hon ton 0,015 mol hn hp c 0,03 mol CO2. Bit 0,015 mol hn hp phn

ng va ht 0,015 mol HCl c 1,3725 gam mui. Xc nh cng thc amino axit

A. C5H11O2N. B. CH3O2N. C. C4H9O2N. D. C3H7O2N.

Cu 19: Dy gm cc loi t c ngun gc xenluloz l

A. t tm, t nilon, t visco. B. len, t tm, t axetat, si bng.

C. t visco, si bng, t axetat. D. len, t tm, t axetat, si bng, t enang.

/305

Cu 20: Hn hp B gm Fe v FeO c chia thnh hai phn bng nhau. Phn 1: Cho tc dng vi

dung dch HCl, d, thu c 2,24 lt kh (ktc). Phn 2: Cho tc dng vi dung dch HNO3 c, nng,

d, thu c 10,08 lt kh NO2 (ktc). Khi lng ca mi cht trong B ln lt l

A. 11,2 gam v 3,6 gam. B. 5,6 gam v 7,2 gam.

C. 5,6 gam v 10,8 gam. D. 11,2 gam v 7,2 gam.

Cu 21: Pht biu no sau y khng ng:

A. Hn hp gm FeS v CuS c th tan ht trong dung dch HCl.

B. Hn hp gm Ag v Cu c th tan ht trong dung dch HNO3 c.

C. Hn hp gm BaO v Al2O3 c th tan ht trong H2O.

D. Hn hp gm Fe3O4 v Cu c th tan ht trong dung dch HCl.

Cu 22: Axit cacboxylic X n chc, Y v Z l 2 ancol 2 chc, ng ng k tip (MY < MZ). t

chy hon ton hn hp gm X, Y v Z cn va 10,64 lit O2 (ktc) thu c 8,96 lit CO2 v 9,9

gam H2O. Phn trm khi lng ca Y trong hn hp trn l:

A. 50,41% B. 40,51% C. 41,50% D. 54,01%

Cu 23: Khi pin in ho Zn-Cu hot ng, phn ng xy ra catot l

A. Cu2+

+ 2e Cu. B. Zn2+ + 2e Zn. C. Cu Cu2+ + 2e. D. Zn Zn2+ + 2e.

Cu 24: Cho dung dch A cha cc ion K+ (0,03 mol), M+, SO42-

, CO32-. Cho dung dch tc dng vi

BaCl2 d thu c 8,6 gam kt ta. Cho dung dch A tc dng vi H2SO4 long d thu c 0,448 lit

kh (ktc). Khi c cn dung dch thu c 5,19 gam mui khan. ion M+ l

A. Na+. B. Li

+. C. NH4

+. D. Rb

+.

Cu 25: Cho s sau: NaOH X1 X2 X3 NaOH. Vi X1, X2, X3 l cc hp cht ca natri.

Vy X1, X2, X3 c th tng ng vi dy cht no sau y?

A. Na2CO3, NaCl v NaNO3 B. NaCl, NaNO3 v Na2CO3

C. Na2CO3, Na2SO4 v NaCl D. NaNO3, Na2CO3 v NaCl

Cu 26: Cho tn gi ca mt s cht: metylamin (1); axit axetic (2); axit propanoic (3); etan-1,2-iol

(4); hexan-2,4-ion (5). Tn thuc loi danh php h thng l

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

Cu 27. Trong mt th nghim dng dung dch A chun cc cha dung dch B ngi ta nhn

thy pH ca dung dch trong cc ph thuc vo th tch dung dch A nh sau:

Vy thi nghim trn c th l:

A. Chun NaOH bng HCl

B. Chun HCl bng NaOH

C. Chun FeSO4 bng KMnO4

D. Chun KMnO4 bng FeSO4

Cu 28: Cho cc cht sau: NH3, HCl, SO3, N2. Chng c kiu lin kt ho hc no sau y:

A. Lin kt cng ho tr phn cc. B. Lin kt cng ho tr khng phn cc.

C. Lin kt cng ho tr. D. Lin kt phi tr (lin kt cho nhn).

/305

Cu 29: Poli(vinyl axetat) l polime c iu ch bng phn ng trng hp:

A. C2H5COOCH=CH2 B. CH2=CHCOOC2H5

C. CH3COOCH=CH2 D. CH2=CHCOOCH3

Cu 30: S lng ancol c cng thc phn t C5H12O khi tch nc to ra anken duy nht c cng

mch cacbon vi ancol l:

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

Cu 31: Rt t t dung dch AlCl3 n d vo dung dch NaOH ng thi lc nh. Hin tng quan

st c l

A. C kt ta trng, sau tan v bt kh thot ra.

B. Ban u c kt ta, tan ngay, sau to kt ta khng tan.

C. C bt kh khng mu thot ra.

D. Ban u khng c hin tng g sau c kt ta trng.

Cu 32: Cho cc phn ng sau

Cl2 + H2O HCl + HClO Cl2 + 2NaOH NaClO + H2O + NaCl

3Cl2 + 6NaOH 5NaCl + NaClO3 + 3H2O 2Cl2 + H2O + HgO HgCl2 + 2HClO

2Cl2 + HgO HgCl2 + Cl2O

Trong cc phn ng trn clo ng vai tr l cht g:

A. L cht oxi ho. B. L cht kh.

C. Va l cht oxi ho, va l cht kh. D. Khng l cht oxi ha, khng l cht kh.

Cu 33: Hai cht A, B l dn xut ca benzen c cng thc phn t l C9H8O2. A v B u cng hp

vi brom theo t l mol l 1 : 1. A, B u tc dng vi NaHCO3 v cha gc phenyl. Cng thc cu to

ca A v B ln lt l

A. C6H5-C(COOH)=CH2 v C6H5-CH=CH-COOH

B. C6H5COOCH=CH2 v C6H5-CH=CH-COOH

C. C6H5COOCH=CH2 v CH2=CH-COOC6H5

D. HOOCC6H4CH=CH2 v HOOCCH=CH-C6H5

Cu 34: Cho cc dn xut halogen sau: (1) etyl clorua; (2) phenyl clorua; (3) benzyl clorua; (4) p-

clotoluen; (5) 1,2-icloetan. Nhng dn xut b thy phn trong dung dch NaOH long, un nng l:

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

Cu 35: Thy phn hon ton 4,34 gam ipeptit mch h X (c to nn t 2 -amino axit c cng

thc H2NCxHyCOOH) bng dung dch NaOH d thu c 7,44 gam mui. Mt khc thy phn hon

ton 4,34 gam X bng dung dch HCl d thu c m gam mui. Gi tr ca m l:

A. 9,79 B. 7,99 C. 8,89 D. 6,59

Cu 36: Nguyn t ca nguyn t A c tng s electron trong cc phn lp p l 7. Nguyn t ca

nguyn t B c tng s ht mang in nhiu hn tng s ht mang in ca A l 8. A v B l cc

nguyn t

A. Al v Br B. Al v Cl C. Mg v Cl D. Si v Br

Cu 37: Hp cht hu c X c cng thc phn t C4H9O2N, X phn ng hon ton vi dung dch

NaOH d khi un nng thot ra kh Y lm xanh qu m, c t khi so vi hidro 15,5. Xc nh cng

thc cu to ca X

A. CH3-CH=CH-COONH4. B. CH2=CH-COONH3CH3.

C. CH2=CH-CH2-COONH4. D. CH3-COONH3CH=CH2.

/305

Cu 38: Hp cht hu c tp chc A cha hai nhm chc khc nhau trong phn t. t chy mt

lng bt k A u ch to ra CO2 v H2O vi t l mol l 1:1. Chia A thnh ba phn bng nhau:

- Phn 1 phn ng va vi 0,1 mol NaOH.

- Phn 2 tc dng vi Na d thu c 0,1 mol H2.

- Phn 3 c t chy to ra 0,3 mol CO2.

Cng thc phn t ca A l:

A. C2H4O B. C3H6O3 C. C3H4O2 D. C3H6O2

Cu 39: Ha tan hon ton 32 gam Cu vo 200 gam dung dch HNO3 63% thu c dung dch X

(khng c ion NH4+). Cho X tc dng hon ton 500ml dung dch KOH 3M, sau lc kt ta thu

c dung dch Y. C cn Y thu c cht rn Z. Nung Z n khi lng khng i thu c 124,6

gam cht rn. Nng % ca Cu(NO3)2 trong X l:

A. 38,56% B. 45,28% C. 47,00% D. 35,09%

Cu 40: Cht no sau y khi cho tc dng vi HBr theo t l mol 1:1 thu c 2 dn xut monobrom

(tnh c ng phn hnh hc):

A. isobutilen B. propin C. metylxiclopropan D. isopren

Cu 41: Cho cc dung dch long sau: Na2SO4, Na2CO3, NaCl, H2SO4, BaCl2, NaOH. Ch c dng

thm mt ho cht no di y nhn bit cc cht trong cc dung dch long trn?

A. Dung dch NaOH. B. Dung dch HCl. C. Giy qu tm. D. Dung dch Na2CO3.

Cu 42: Cho 6,5 gam Zn tc dng va ht vi dung dch cha m gam hn hp NaOH v NaNO3 thu

c 0,896 lt ( ktc) hn hp kh NH3 v H2. Gi tr ca m l:

A. 1,7. B. 7,2. C. 3,4. D. 8,9.

Cu 43: Cng thc phn t ca caprolactam, axit lactic, axit glutamic v axit oxalic ln lt l:

A. C6H11NO; C3H6O3; C5H9O4N v C2H2O4.

B. C6H13NO2; C3H6O2; C5H9O2N v C2H2O4.

C. C6H11NO; C3H6O3; C5H11O4N v C2H2O4.

D. C6H11NO; C3H6O3; C5H9O4N v C2H4O4.

Cu 44: Khi nhit tng ln 100C, tc ca mt phn ng ho hc tng ln ba ln. Ngi ta ni

rng tc phn ng ho hc trn c h s nhit bng 3. Vy khi tng nhit phn ng t 200C

ln 500C th tc phn ng tng ln l:

A. 9 ln. B. 6 ln. C. 27 ln. D. 81 ln.

Cu 45: t chy hon ton 0,1 mol cht hu c X c cha hai nguyn t oxi trong phn t thu c

khng qu 17,92 lt CO2 (ktc). trung ha 0,25 mol X cn va 0,25 mol NaOH. Mt khc cho

0,5 mol X tc dng vi Na d thu c 0,5 mol H2. Khi cho 13,64 gam X tc dng ht vi dung dch

NaOH va th thu c lng mui khan l


Cu 46: Cho dy cc cht: propin, but-2-in, axit fomic, axit axetic, anehit acrylic, axeton, saccaroz,

glucoz, etyl fomat, metyl axetat. S cht c kh nng kh c AgNO3/NH3 l:

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

Cu 47: Cht A c cng thc phn t C5H11O2N, A tc dng c vi NaHCO3 v A cha nhm chc

NH2, A c mch cacbon khng phn nhnh. S ng phn cu to ca A l:

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

Cu 48: Chia hn hp gm hai ancol n chc X v Y (MX < MY) l ng ng k tip thnh hai phn

bng nhau

/305

- t chy ha ton phn 1 thu c 3,808 lt kh CO2 (ktc) v 4,32 gam H2O.

- un nng phn 2 vi H2SO4 c 140oC to thnh 1,996 gam hn hp ba ete. Ha hi hon ton hn

hp ba ete trn, thu c th tch hi l 0,3864 lt (136,5oC v 2 atm). Hiu sut phn ng to ete ca

X v Y ln lt l

A. 62,5% v 70%. B. 70% v 62,5%. C. 50% v 50%. D. 65,2% v 70%.

Cu 49: Hn hp X gm hidro, propen, axit acrylic, ancol anlylic (C3H5OH). t chy hon ton

1,0mol X thu c 39,6 gam CO2. un nng X vi Ni mt thi gian, thu c hn hp Y. T khi ca

Y so vi X bng 1,25. Cho 0,4mol Y phn ng va vi V lit dung dch Br2 0,1M. Gi tr ca V l:

A. 0,3 B. 0,4 C. 0,6 D. 0,5

Cu 50: Mt hc sinh xut 2 cch pha long dung dch H2SO4 c nh hnh v:

Cch 1 Cch 2

Cch lm ng l:

A. Cch 1 B. Cch 2 C. C 2 cch D. Khng cch no ng

H2O

H2SO4

H2SO4

H2O

/305






Sr = 88; Ag = 108; Sn = 119; Cs = 133; Ba = 137; Pb = 207; I = 127; F = 19.

Cu 1: Cho hn hp kim loi Mg, Zn, Fe vo dung dch cha AgNO3 v Cu(NO3)2. Sau khi phn ng

xy ra hon ton thu c dung dch cha gm 3 mui gm

A. Mg(NO3)2, Zn(NO3)2 v Fe(NO3)2. B. Mg(NO3)2, Zn(NO3)2 v Cu(NO3)2.

C. Mg(NO3)2, Zn(NO3)2 v Fe(NO3)3. D. Mg(NO3)2, Fe(NO3)3 v AgNO3.

Cu 2: Pht biu no sau y ng:

A. F, Cl c cng ho tr bng 1, 3, 5 v 7. B. N, P c cng ho tr bng 2 v 5.

C. Br, I c cng ho tr bng 1, 3, 5 v 7. D. O, S c cng ho tr bng 2, 4 v 6.

Cu 3: iu ch kh A bng dng c v ha cht nh hnh v:

A c th l kh no:

A. NH3 B. HCl C. H2S D. O2

Cu 4: Cho phn ng: CH2=CH2 + KMnO4 + H2O HOCH2-CH2OH + MnO2 + KOH. Tng cc h

s nguyn ca cc cht phn ng khi cn bng phng trnh l:

A. 7. B. 14. C. 9. D. 16.

Cu 5: Trong dung dch CH3COOH c cn bng sau: CH3COOH CH3COO- + H

+. Nu pha long

dung dch bng nc, in li ca CH3COOH s bin i nh th no:

A. Khng bin i B. Tng

C. Khng xc nh c D. Gim

Cu 6: Cht X c cng thc C6H10O4. Cho 1 mol X phn ng ht vi dung dch NaOH thu c cht

Y v hn hp ancol Z. un Z vi dung dch H2SO4 c thu c metyl etyl ete. Cht Y phn ng vi

dung dch H2SO4 long d thu c cht T. Cht T phn ng vi dung dch HBr, thu c 2 sn phm

l ng phn cu to ca nhau. Pht biu no sau y ng:

A. Cht X l este 2 chc ca ancol 2 chc

B. Cht Y lm mt mu dung dch Br2

C. Cht T l axit n chc

D. Cht Y c cng thc phn t C3H2O4Na2

/305

Cu 7: Dy bc nh cm c mu en v to ra Ag2S. Ngm dy bc ny trong nc tiu th li sng ra

do:

A. Ag2S tc dng vi NH3 to phc Ag(NH3)2+ khng mu tan trong dung dch.

B. Nc gt ra sch Ag2S.

C. Ag2S tc dng vi oxi to ra Ag2SO4 mu trng.

D. Nguyn nhn khc.

Cu 8: Hm lng phn trm ca canxi ihirophotphat trong phn supephotphat kp cha 40% P2O5

l:

A. 71,35%. B. 69,0%. C. 65,9%. D. 73,1%.

Cu 9: Trong qu trnh n mn in ho hc, xy ra

A. s kh cc m.

B. s oxi ho cc dng.

C. s oxi ho cc dng v s kh cc m.

D. s oxi ho cc m v s kh cc dng.

Cu 10: Cho cc cht sau: (1) glyxin; (2) axit glutamic; (3) mui clorua ca axit glutamic; (4) mui

natri ca glyxin. Sp xp cc cht trn theo th t tng dn v pH (gi s chng c cng nng

mol/l).

A. (2) < (1) < (3) < (4) B. (3) < (2) < (1) < (4)

C. (4) < (2) < (1) < (3) D. (3) < (2) < (4) < (1)

Cu 11: t chy hon ton 1 mol cht bo thu c lng CO2 v H2O hn km nhau 8mol. Mt

khc a mol cht bo trn tc dng ti a vi 600ml dung dch Br2 1M. Gi tr ca a l:

A. 0,10 B. 0,15 C. 0,05 D. 0,20

Cu 12: Nguyn tc lm mm nc cng l

A. lm gim nng cc ion Mg2+ v Ca2+ trong nc cng.

B. oxi ho cc ion Mg2+

v Ca2+ trong nc cng.

C. kh cc ion Mg2+ v Ca2+ trong nc cng.

D. thay th cc ion Mg2+ v Ca2+ trong nc cng bng cc ion khc.

Cu 13: kh hon ton 3,04 gam hn hp X gm FeO, Fe3O4 v Fe2O3 cn 0,05 mol H2. Ho tan

hon ton 3,04 gam hn hp X trong dung dch H2SO4 c th th tch kh SO2 (sn phm kh duy

nht) thu c ktc l:

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

Cu 14: in phn dung dch C cha a mol CuSO4 v 0,4mol KCl (in cc tr, mng ngn xp,

cng dng in khng i) trong thi gian t giy thu c 4,48 lit kh anot (ktc). Nu thi gian

in phn l 2t th tng th tch kh thu c c 2 in cc l 10,08 lit (ktc). Bit hiu sut in

phn l 100%. Gi tr ca a l:

A. 0,20 B. 0,25 C. 0,22 D. 0,15

Cu 15: Chia hn hp bt hai kim loi Mg v Al thnh hai phn bng nhau.

Phn (1): Cho tc dng vi dung dch HCl d thu c 3,36 lt H2.

Phn (2): Ho tan ht trong dung dch HNO3 long, d thu c V lt mt kh khng mu, ho nu

trong khng kh (cc th tch kh u o ktc). Gi tr ca V l

A. 2,24. B. 3,36. C. 4,48. D. 5,6.

/305

Cu 16: Cho 200 ml dung dch gm MgCl2 0,3M, AlCl3 0,45M v HCl 0,55M tc dng hon ton vi

V lt dung dch gm NaOH 0,02M v Ba(OH)2 0,01M. Gi tr ca V lng kt ta thu c ln

nht l

A. 8,5. B. 12,5. C. 12. D. 12,25.

Cu 17: X l mt trong cc mui: Al(NO3)3, AgNO3, Cu(NO3)2, MgCO3, Ba(HCO3)2, NH4HCO3,

NH4Cl. Nung X cho n khi lng khng i thu c cht rn Y, cht rn Y ny ho tan c trong

nc to thnh dung dch Z. C bao nhiu mui X tho mn cc tnh cht trn:

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

Cu 18: Thc hin phn ng nhit nhm hn hp gm Al v m gam 2 oxit st trong kh tr thu c

hn hp rn X. Cho X vo dung dch NaOH d, thu c dung dch Y, cht khng tan Z v 13,44 lit

kh H2 (ktc). Sc kh CO2 d vo Y thu c 93,6 gam kt ta. Cho Z tan ht trong dung dch H2SO4

thu c dung dch cha 165,6 gam mui sunfat v 26,88 lit kh SO2 (ktc, l sn phm kh duy nht

ca H2SO4). Bit cc phn ng xy ra hon ton. Gi tr ca m l:

A. 50,4 B. 62,9 C. 64,8 D. 69,6

Cu 19: Hiro c ba ng v 1H, 2H, 3H ; oxi c ba ng v 16O, 18O, 17O. Trong t nhin c th c bao

nhiu loi phn t H2O cu to t cc ng v trn:

A. 6 B. 9 C. 12 D. 18

Cu 20: t chy 5,12 gam hn hp Mg v Fe trong kh O2 thu c 7,36 gam hn hp X ch gm

cc oxit. Ha tan hon ton X trong dung dch HCl va thu c dung dch Y. Cho dung dch Y

vo dung dch NaOH d thu c kt ta Z. Nung Z trong khng kh n khi lng khng i thu

c 7,6 gam cht rn. Mt khc cho Y tc dng vi lng d dung dch AgNO3 thu c m gam kt

ta. Gi tr ca m l:

A. 52,34 B. 43,42 C. 40,18 D. 39,46

Cu 21: Hn hp kh X gm etilen v vinyl axetilen. Cho a mol X tc dng vi lng d dung dch

AgNO3 trong NH3 thu c 19,08 gam kt ta. Mt khc a mol X phn ng ti a vi 0,46mol H2. Gi

tr ca a l:

A. 0,32 B. 0,22 C. 0,34 D. 0,46

Cu 22: Khi lng KCl cn thm vo 450 gam dung dch KCl 8% thu c dung dch KCl 12% l

A. 24,05 g. B. 20,45 g. C. 45,20 g. D. 25,04 g.

Cu 23: Khi t chy cc ng ng ca mt loi hirocacbon th t l s mol nCO2 : nH2O tng dn khi

s nguyn t cacbon tng. Cc hirocacbon thuc loi

A. hirocacbon no, mch h. B. hirocacbon khng no.

C. hirocacbon no, mch vng. D. hirocacbon thm.

Cu 24: Cho 4,48 lt hn hp X (ktc) c khi lng 6,7 gam gm hai hirocacbon mch h phn ng

va vi 0,35 mol Br2 trong dung dch. Cng thc phn t ca hai hirocacbon l

A. C2H2 v C4H6. B. C2H2 v C4H8. C. C3H4 v C4H8. D. C2H2 v C3H8.

Cu 25: Tch nc t ancol X, bc II thu c anken. Cho 3 gam X tc dng ht vi Na d thu c

0,56 lt H2 (ktc). un nng X vi H2SO4 c 1400C thu c sn phm l

A. propen. B. but-2-en. C. iisopropyl ete. D. isec-butyl ete.

Cu 26: Cho 200 ml dung dch Al2(SO4)3 tc dng vi dung dch NaOH 1M nhn thy s mol kt ta ph thuc vo th tch dung dch NaOH theo th sau. Nng ca dung dch Al2(SO4)3 trong th nghim trn l: A. 0,125M B. 0,25M C. 0,375M D. 0,50M

/305

Cu 27: Pht biu no sau y sai:

A. Hp cht cacbonyl c th b kh hoc b oxi ho.

B. Anehit v xeton u d b oxi ho.

C. Anehit v xeton l hp cht cacbonyl.

D. Anehit c th tham gia phn ng trng bc.

Cu 28: t chy hon ton 0,1 mol mt axit cacboxylic n chc cn V lt kh O2 (ktc), sau phn

ng thu c 0,3 mol CO2 v 0,2 mol H2O. Gi tr ca V l

A. 8,96. B. 11,2. C. 6,72. D. 4,48.

Cu 29: Nung nng 13,44 gam bt Fe trong kh O2 mt thi gian thu c 15,84 gam hn hp cht

rn X gm Fe, FeO, Fe2O3 v Fe3O4. Ha tan ht X trong dung dch hn hp gm a mol HNO3 v 0,1

mol H2SO4 thu c dung dch Y (khng cha NH4+) v 2,016 lit kh NO duy nht (ktc). Gi tr ca a

l:

A. 0,49 B. 0,55 C. 0,37 D. 0,46

Cu 30: Khi thu phn a gam mt este X thu c 0,92 gam glixerol, 3,02 gam natri linoleat

(C17H31COONa) v m gam mui ca natri oleat (C17H33COONa). Gi tr ca a v m l

A. 6,08 v 8,82. B. 3,94 v 7,88. C. 8,82 v 6,08. D. 6,08 v 9,2.

Cu 31: Cho s phn ng sau: NaX (rn) + H2SO4 c, nng NaHSO4 + HX. Vy HX c th

ng vi dy cht no sau y?

A. HBr, HCl v HI B. HNO3, HNO2 v HCl

C. HCl, HBr v HF D. HNO3, HCl v HF

Cu 32: T ba -amino axit l glyxin, alanin v valin, c th to thnh bao nhiu tripeptit cha c ba

-amino trn:

A. 3 B. 6 C. 9 D. 27

Cu 33: Cho 9,3 gam CH3NH2 tc dng vi dung dch FeCl2 d thu c a gam kt ta. Nung kt ta

trong khng kh n khi lng khng i th thu c b gam cht rn. b c gi tr l

A. 24,0. B. 12,0. C. 8,0. D. 13,5.

Cu 34: Mnh no sau y sai vi glucoz:

A. Tc dng vi Cu(OH)2/OH- to dung dch mu xanh lam; tc dng vi (CH3CO)2O to este

pentaaxetat.

B. Kh hon hon bng H2 (xc tc Ni, to) to sobitol.

C. Tc dng vi dung dch AgNO3/NH3 to kt ta Ag; vi Cu(OH)2/OH- to kt ta gch

v lm nht mu nc brom.

D. Tn ti mt dng duy nht v c mt nhit nng chy duy nht.

Cu 35: Loi t no sau y thuc loi polieste:

A. T lapsan B. T nitron C. T capron D. T nilon-6,6

Cu 36: Khi tch hiro clorua t cc ng phn ca C4H9Cl th thu c ti a bao nhiu anken:

/305

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

Cu 37: Mt este X to bi axit n chc v ancol n chc c t khi hi so vi kh CO2 bng 2. Khi

un nng X vi dung dch NaOH thu c ancol Y c khi lng bng 36,36% khi lng X phn

ng. Cng thc ca X l

A. HCOOC3H7. B. C2H5COOCH3. C. CH3COOC2H5 D. CH3COOCH3.

Cu 38: Cho cc cht: etyl axetat, anilin, ancol etylic, axit acrylic, phenol, phenylamoni clorua v p-

crezol. S cht tc dng c vi dung dch NaOH l

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

Cu 39: Hn hp X gm mt anken v hiro c t khi so vi H2 bng 6,4. Cho X i qua niken nung

nng thu c hn hp Y c t khi so vi H2 bng 8 (gi thit hiu sut phn ng l 100%). CTPT

ca anken l

A. C4H8. B. C3H6. C. C5H10. D. C2H4.

Cu 40: t chy hon ton 38,4 gam hn hp X gm axit butanioic, etanol, axit acrylic v axit

fomic (trong s mol axit fomic bng s mol axit acrylic) bng O2 d thu c hn hp Y gm kh

v hi. Dn Y vo dung dch cha 1,4 mol Ca(OH)2 thu c 120 gam kt ta v dung dch Z. un

nng Z li thy xut hin kt ta. Cho 38,4 gam hn hp X tc dng vi 350ml dung dch NaOH 1M,

sau khi cc phn ng xy ra hon ton, c cn dung dch thu c cht rn khan c khi lng l:


Cu 41: Cho kim loi Ba ln lt vo cc dung dch: NaHCO3, CuSO4, (NH4)2CO3, NaNO3 v MgCl2.

S dung dch c kt ta to thnh l

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

Cu 42: Cho s : X 2Br C3H6Br2

0NaOH, t C3H6(OH)2

0CuO, t Anehit hai chc. Cht

X l:

A. butan. B. propen. C. xiclobutan. D. xiclopropan.

Cu 43: Hn hp X gm cc axit hu c no, n chc, mch h v este no, n chc, mch h.

phn ng ht vi m gam X cn 400 ml dung dch NaOH 0,5M. Nu t chy m gam hn hp ny th

thu c 0,6 mol CO2. Gi tr ca m l

A. 8,4. B. 11,6. C. 14,8. D. 26,4.

Cu 44: Ho tan 0,72 gam bt Mg vo 200 ml hn hp dung dch AgNO3 0,15M v Fe(NO3)3 0,1M.

Khuy u cho ti khi phn ng hon ton, thu c m gam cht rn. Gi tr ca m l

A. 3,52. B. 3,8. C. 1,12. D. 4,36.

Cu 45: Nguyn t crom c s hiu nguyn t l 24 v c 1e lp ngoi cng. S electron c thn

ca nguyn t crom trng thi c bn l

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

Cu 46: Ho tan hon ton 12,9 gam hn hp Cu, Zn bng dung dch H2SO4 c, nng thu c 3,136

lt SO2 (ktc), 0,64 gam lu hunh v dung dch mui sunfat. Thnh phn % khi lng ca Cu v Zn

trong hn hp ban u ln lt l

A. 45,54% v 54,46%. B. 49,61% v 50,39%.

C. 51,15% v 49,85%. D. 51,08% v 48,92%.

Cu 47: Cho cc kh: Cl2, HCl, CH3NH2, O2. S kh to khi trng khi tip xc vi kh NH3 l:

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

/305

Cu 48: Cho s : A B (ancol bc I) C D (ancol bc II) E F (ancol bc III). Bit A c

cng thc phn t C5H11Cl. Tn gi ca A l

A. 2-clo-3-metylbutan. B. 1-clopentan.

C. 1-clo-2-metylbutan. D. 1-clo-3-metylbutan.

Cu 49: Trong s cc cht: phenol, anilin, glucoz, mantoz v axit acrylic, s cht phn ng c

vi nc brom l

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

Cu 50: S ng phn n chc c cng CTPT C3H6O2 l

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

/305






Sr = 88; Ag = 108; Sn = 119; Cs = 133; Ba = 137; Pb = 207; I = 127; F = 19.

Cu 1: Cng thc phn t chung ca mt amino axit no, mch h c cha 2 nhm COOH v 1 nhm

NH2 l

A. CnH2n+3O4N B. CnH2n-3O4N C. CnH2n-1O4N D. CnH2n+1O4N

Cu 2: Pht biu no sau y l ng:

A. Nhm v canxi c cng kiu mng tinh th

B. Corinon l mt loi qung ca kim loi ng

C. Trong phn t ankan c cha 1 lin kt i C = C

D. Amiloz v amilopectin l hai dng ca xenluloz

Cu 3: Tn thay th ca cc cht c cng thc C2H5OH; CH3CHO v CH3COOH ln lt l:

A. ancol etylic; anehit axetic v axit axetic

B. etanol; etanal v axit etanoic

C. etanol; anehit etanal v axit etanoic

D. ancol etanol; anehit etanal v axit etanoic

Cu 4: Cho m gam hn hp Cu v Fe2O3 vo dung dch H2SO4 long d, sau khi cc phn ng xy ra

hon ton thy c 6,4 gam kim loi khng tan v dung dch X. Cho NH3 ti d vo dung dch X, lc

ly kt ta, nung trong khng kh n khi lng khng i c 32 gam cht rn. Gi tr ca m l


Cu 5: Cho cc cp cht ( trng thi rn hoc dung dch) phn ng vi nhau:

(1) Pb(NO3)2 + H2S. (2) Pb(NO3)2 + CuCl2. (3) H2S + SO2.

(4) FeCl3 + H2S. (5) AlCl3 + NH3. (6) NaAlO2 + AlCl3.

(7) FeS + HCl. (8) Na2SiO3 + HCl. (9) NaHCO3 + Ba(OH)2 d.

S lng cc phn ng to ra kt ta l:

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

Cu 6: Khi cho 11,95 gam hn hp alanin v glyxin tc dng vi 80 ml dung dch HCl 1M. C cn

dung dch sau phn ng thu c m gam cht rn khan. Gi tr ca m l


Cu 7: Khi phun nc ra sch ng ph ngi ta thng cho thm CaCl2 (rn) xung ng v:

A. CaCl2 c kh nng gi bi trn mt ng.

B. CaCl2 rn c kh nng ht m tt nn gi hi nc lu trn mt ng.

C. CaCl2 tc dng vi nc, lm gi hi nc lu.

D. Nguyn nhn khc.

Cu 8: Mnh no sau y khng ng:

A. Tinh bt, xenluloz, mantoz u b thy phn trong mi trng axit

/305

B. nhit thng glucoz, anehit oxalic, saccaroz u ha tan Cu(OH)2 to dung dch

xanh lam

C. Glucoz, fructoz, u tc dng vi H2 (xc tc Ni, to) cho poliancol

D. Cho isopren tc dng vi HBr theo t l mol 1:1 thu c ti a 6 sn phm (khng k ng

phn hnh hc)

Cu 9: Thuc th cn dng phn bit hai kh SO2 v H2S l dung dch

A. Nc brom B. KMnO4/H2SO4 C. Ca(OH)2 D. NaOH

Cu 10: Dy gm cc cht u c tnh axit l:

A. NH4Cl, K2S, CH3COOH, HCl B. NH4Cl, NaHCO3, CH3NH3Cl, C6H5OH

C. KHCO3, MgCl2, ZnO, CH3COONa D. NH4Cl, NaHCO3, Na3PO4, C6H5ONa

Cu 11: Ha tan ht 5,2 gam crom vo dung dch HNO3 d, kt thc phn ng thu c 0,02 mol NO

v 0,024 mol kh X. Bit phn ng khng to mui NH4NO3. Kh X l

A. NO2 B. NH3 C. N2O D. N2

Cu 12: Cho phn ng: Mg + HNO3 Mg(NO3)2 + NxOy + H2O. S phn t cht b kh trong phn

ng trn sau khi cn bng vi h s nguyn, ti gin nht l

A. 2x B. 12x 4y C. 5x 2y D. 10x

Cu 13: Cho cc cht: caprolactam (1), isopropylbenzen (2), acrilonitrin (3), glyxin (4), vinyl axetat

(5). Cc cht c kh nng tham gia phn ng trng hp to polime l:

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

Cu 14: Ha cht c dng tch Al2O3 ra khi hn hp vi Cu(OH)2 l dung dch

A. NaOH B. HCl C. NH3 D. H2O

Cu 15: Ha tan ht 5,36 gam hn hp FeO, Fe2O3, Fe3O4 trong dung dch cha 0,03 mol HNO3 v

0,18 mol H2SO4 thu c dung dch X v 0,01 mol kh NO (sn phm kh duy nht). Cho 0,04 mol Cu

vo X thy c kh NO tip tc thot ra, dung dch sau phn ng c cha m gam mui (khng ngm

nc). Gi tr ca m l


Cu 16: Khi lng xenluloz v khi lng axit nitric cn ly sn xut c 445,5 kg xenluloz

trinitrat (hiu sut phn ng t 75%) ln lt l:

A. 162 kg v 378 kg B. 182,25 kg v 212,625 kg.

C. 324 kg v 126 kg D. 324 kg v 378 kg.

Cu 17: 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 thu c 12,9 gam cht rn khan. Phn trm s mol ca este c gc axit

nh hn trong X l

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

Cu 18: Thc hin cc th nghim vi hn hp gm Ag v Cu (hn hp X): a. Cho X vo bnh cha

mt lng d kh O3 iu kin thng; b. Cho X vo mt lng d dung dch HNO3 c; c. Cho X

vo dung dch HCl d (khng c mt oxi); d. Cho X vo lng d dung dch FeCl3. Th nghim m Cu

b oxi ha cn Ag khng b oxi ha l:

A. d B. a C. b D. c

Cu 19: t chy hon ton 0,25 mol hn hp X gm hai anehit X thu c 0,3 mol CO2. Mt khc,

nu cho 0,25 mol X tc dng ht vi dung dch AgNO3/NH3 d, thu c 0,9 mol Ag. Cng thc cu

to thu gn ca hai anehit trong X l

/305

A. HCHO v OHC-CHO B. CH3CHO v OHC-CHO

C. HCHO v OHC-CH2-CHO D. HCHO v CH3-CHO

Cu 20: Thy phn hon ton 1 mol oligopeptit X mch h thu c 2 mol Gly, 1 mol Ala, 1 mol Val,

1 mol Tyr. Mt khc, nu thy phn khng hon ton th thu c sn phm c cha Gly-Val v Val-

Gly. S cng thc cu to ph hp ca X l

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

Cu 21: Trong qu trnh iu ch Clo trong phng th nghim ming ng nghim thu kh Clo thng

c ming bng tm dung dch no di y ?

A. Dung dch AgNO3 B. Dung dch NaOH

C. Dung dch qu tm D. Dung dch KI + h tinh bt

Cu 22: Mt bnh kn c khi lng 40,5 gam cha hirocacbon X. cng iu kin trn, nu bnh

cha C4H10 th cn nng 48,5 gam, cn nu bnh cha CH4 th cn nng 38 gam. Cng thc ca X l:

A. C2H2 B. C2H4 C. C2H6 D. C3H8

Cu 23: Cho cn bng sau trong bnh kn: H2 (k) + I2 (r) 2HI (k); H > 0. Yu t lm chuyn dch

cn bng sang chiu thun l

A. tng th tch ca bnh phn ng B. tng nhit

C. gim nng H2 hoc I2 D. cho thm cht xc tc

Cu 24: Hp cht hu c X c cng thc phn t C4H9O2N, mch h tc dng c vi dung dch

NaOH to thnh kh mi khai. S cht X ph hp vi tnh cht trn l:

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

Cu 25: Tng s ht c bn trong nguyn t nguyn t X l 58. S ht mang in trong nguyn t

nguyn t Y nhiu hn trong X l 8. V tr ca X v Y trong bng tun hon ln lt l

A. chu k 4, nhm IA v chu k 4 nhm VB

B. chu k 3, nhm IIA v chu k 4 nhm VIIA

C. chu k 3, nhm IIA v chu k 4 nhm VB

D. chu k 4, nhm IA v chu k 4 nhm VIIIA

Cu 26: Nung nng hn hp bt X gm a mol Fe v b mol S trong kh tr, hiu sut phn ng bng

50% thu c hn hp rn Y. Cho Y vo dung dch HCl d, sau khi cc phn ng xy ra hon ton thu

c hn hp kh Z c t khi so vi H2 bng 4,2. T l a:b bng:

A. 5:1 B. 1:5 C. 2:5 D. 5:32

Cu 27: Thit b ny dng tch nhng cht no khi hn hp ca n vi nc. A. Tch axit axetic

B. Tch benzen

C. Tch ancol etylic

D. Tch metylamin

Cu 28: Hai nguyn t X, Y cng mt chu k trong bng tun hon cc nguyn t ha hc, X thuc

nhm IIA, Y thuc nhm IIIA (ZX + ZY = 51). Pht biu no sau y ng:

A. Kim loi X khng kh c ion Cu2+ trong dung dch.

B. Trong nguyn t nguyn t X c 25 proton

C. nhit thng X khng kh c nc

D. Hp cht ca X c dng X2O7

/305

Cu 29: Cho 150 ml dung dch Ba(OH)2 1M vo 250 ml dung dch Al2(SO4)3 x M c 42,75 gam kt

ta. Thm tip 200 ml dung dch Ba(OH)2 1M vo hn hp phn ng th lng kt ta thu c l

94,2375 gam. Gi tr ca x l:

A. 0,25M B. 0,43M C. 0,3M D. 0,45M

Cu 30: Cho hn hp cha 5,6 gam Fe v 6,4 gam Cu vo 100 ml dung dch AgNO3 x M. Sau khi cc

phn ng xy ra hon ton thu c dung dch cha 3 mui. Gi tr ca x l

A. 2,5M B. 4,5M C. 5,0M D. 3,5M

Cu 31: t chy ht m gam cacbon trong V lt khng kh (cha 80% N2, cn li O2) va , thu c

hn hp kh X. Cho X i qua ng CuO d, un nng, kt thc phn ng thu c hn hp kh Y. Dn

kh Y li chm qua bnh ng dung dch Ba(OH)2 d, thy c 0,4 mol kt ta xut hin v 1,2 mol kh

khng b hp th. Gi tr ca m v V ln lt l (cc kh c o ktc, cc phn ng xy ra hon

ton).

A. 2,4 gam v 16,8 lt B. 2,4 gam v 33,6 lt

C. 4,8 gam v 33,6 lt D. 4,8 gam v 16,8 lt

Cu 32: t chy hon ton 0,15 mol hn hp X gm mt axit hu c A v mt este B (B hn A mt

nguyn t cacbon trong phn t) thu c 0,2 mol CO2. Vy khi cho 0,2 mol X tc dng hon ton vi

AgNO3/NH3 d th khi lng bc thu c l


Cu 33: Trn mt th tch H2 vi mt th tch anken X thu c hn hp Y c t khi so vi H2 l 11.

Cho Y vo bnh kn c cha sn mt t bt Ni th tch khng ng k. Nung bnh mt thi gian ri a

v nhit ban u th thu c hn hp Z c t khi so vi H2 l 55/3. Phn trm khi lng ca

ankan trong Z l

A. 66,67% B. 50% C. 60% D. 80%

Cu 34: Cho 0,01 mol amino axit X tc dng va vi 200ml dung dch HCl 0,1M thu c 2,19

gam mui khan. Cng thc ca X l

A. (H2N)2C5H9COOH B. H2NC5H9(COOH)2

C. (H2N)2C2H4(COOH)2 D. (H2N)2C4H7COOH

Cu 35: Nung m gam hn hp X gm Al v Fe3O4 trong bnh kn khng c khng kh n khi phn

ng xy ra hon ton thu c hn hp rn Y. Chia Y thnh hai phn bng nhau. Phn (1) cho tc

dng vi dung dch HNO3 long, d thu c 0,11 mol NO (sn phm kh duy nht). Phn (2) cho tc

dng vi dung dch NaOH d thu c 0,03 mol H2. Gi tr m l:


Cu 36: S lin kt n c trong axit cacboxylic CnH2nO2 l

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

Cu 37: Mt hn hp X ( ktc) gm khng kh v imetylamin vi t l th tch tng ng l 30:1

ng trong mt bnh kn dung tch khng i, p sut trong bnh l p1 atm. Nung nng t chy

hon ton amin ri a bnh v nhit ban u, p sut trong bnh l p2 atm. Bit khng kh c 80%

N2 v 20% O2 v th tch, t l p1/p2 c gi tr l:

A. 1,078 B. 0,961 C. 0,907 D. 1,06

Cu 38: Cho cc hp kim Zn Fe; Fe C; Fe Cu; Fe Ag cng c nhng trong dung dch cht

in li. Hp kim m Fe b n mn chm nht l

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

/305

Cu 39: t chy hon ton m gam hn hp X gm hai ancol thu c 7,84 lt CO2 ( ktc) v 10,8

gam H2O. Nu cho m gam X tc dng ht vi 10,35 gam Na thu c cht rn c khi lng nng hn

10 gam so vi X. Hai ancol trong X l

A. metanol v etanol B. etanol v propan-1,2,3-triol

C. metanol v etaniol D. metanol v propan-1,3-iol

Cu 40: Dy cc cht khi tc dng vi dung dch AgNO3/NH3 d u to ra kt ta l

A. Fructoz, anehit axetic, mantoz, xenluloz

B. Glucoz, metyl fomat, saccaroz, anehit axetic

C. ivinyl, glucoz, metyl fomat, tinh bt

D. Vinylaxetilen, glucoz, metyl fomiat, axit fomic

Cu 41: Axit cacboxylic X 2 chc (c % khi lng O nh hn 70%), Y v Z l 2 ancol ng ng k

tip (MY < MZ). t chy hon ton 0,2mol hn hp gm X, Y v Z cn va 8,96 lit O2 (ktc) thu

c 7,84 lit CO2 v 8,1 gam H2O. Phn trm khi lng ca Y trong hn hp trn l:

A. 15,9% B. 29,9% C. 29,6% D. 12,6%

Cu 42: Cho 4,41 gam K2Cr2O7 vo dung dch HCl c, d. Th thch kh thot ra ( ktc) sau khi kt

thc phn ng l

A. 1,008 lt B. 0,336 lt C. 1,344 lt D. 0,672 lt

Cu 43: Dung dch X c cha 0,04mol Mg2+; x mol SO42-

; 0,10mol Cl- v 0,03mol NH4

+. Cho 600ml

dung dch Ba(OH)2 0,1M vo X n khi cc phn ng xy ra hon ton, lc kt ta, thu c dung

dch Y. C cn Y thu c m gam cht rn khan. Gi tr ca m l:

A. 8,190 B. 13,705 C. 7,875 D. 11,255

Cu 44: Cho lung kh H2 d qua hh cc oxit: CuO, Fe2O3, ZnO, MgO nung nhit cao. Sau phn

ng thu c hh cc cht rn gm:

A. Cu, Fe, MgO, ZnO B. Cu, Fe, Zn, Mg

C. Cu, Fe, Zn, MgO D. Cu, FeO, MgO, ZnO

Cu 45: Trong phn t amilopectin cc mt xch glucoz lin kt vi nhau bi cc lin kt

A. -1,6-glicozit v -1,6-glicozit B. -1,4-glicozit v -1,6-glicozit

C. -1,4-glicozit v -1,4-glicozit D. -1,4-glicozit v -1,6-glicozit

Cu 46: Chia hn hp gm hai ancol n chc, k tip nhau trong dy ng ng thnh hai phn bng

nhau. Phn (1) em t chy hon ton thu c 29,12 lt CO2 ( ktc) v 32,4 gam H2O. Cho phn

(2) qua ng ng CuO d, nung nng thu c sn phm X. Cho ton b X li qua dung dch

AgNO3/NH3 d thu c 43,2 gam kt ta. Cc phn ng xy ra hon ton. Hai ancol trong hn hp

l:

A. metanol v etanol B. etanol v propan-1-ol

C. etanol v propan-2-ol D. propan-1-ol v butan-2-ol

Cu 47: Khng nh no sau y khng ng:

A. Dung dch natri phenolat lm qu tm ha xanh, phenylamoni clorua lm qu tm ha

B. Trng ngng cc amino axit u thu c polipeptit

C. Phn ng cng H2 (xc tc Ni, to) vo hirocacbon khng no l phn ng oxi ha kh

D. ng saccaroz ha tan c Cu(OH)2 trong mi trng kim to thnh dung dch c mu

xanh lam

Cu 48: Thy phn hon ton 31,275 gam PCl5 trong nc thu c dung dch X cha cc axit. Th

tch dung dch NaOH 2M trung ha dung dch X l

/305

A. 0,6 lt B. 1,2 lt C. 0,75 lt D. 0,8 lt

Cu 49: Cho 4,8 gam bt Cu2S vo 120 ml dung dch NaNO3 1M, sau thm 200ml dung dch HCl

1M vo, kt thc phn ng thu c dung dch X v V lt kh NO (sn phm kh duy nht, ktc).

Gi tr ca V l

A. 67,2 lt B. 22,4 lt C. 2,24 lt D. 6,72 lt

Cu 50: Cho t t CO2 n d vo dung dch Ca(OH)2. Lng kt ta thu CaCO3 thu c theo s

mol ca CO2 c biu th bng cc th di y:

(1) (2) (3)

th biu din ng l:

A. (1) B. (2) C. (3) D. Kt qu khc

/305






Sr = 88; Ag = 108; Sn = 119; Cs = 133; Ba = 137; Pb = 207; I = 127; F = 19.

Cu 1: t chy hon ton 7,5 gam cht hu c X bng mt lng kh oxi va , sau dn sn

phm chy ln lt i qua bnh (1) ng P2O5, bnh (2) ng nc vi trong d thy khi lng bnh

(1) tng 4,5 gam, bnh (2) c 20 gam kt ta, cn li l 1,12 lt (ktc) kh nit. Cng thc phn t ca

X l

A. C2H5O2N. B. CH3O2N. C. C2H5ON. D. CH3ON.

Cu 2: Trong bnh kn cha hn hp X gm m gam cht hu c X (phn t ch cha C, H, O) v 8,96

lt kh oxi. Bt tia la in t chy hon ton X sau dn ton b hn hp sau khi t qua bnh

(1) ng H2SO4 c, bnh (2) ng KOH rn, thy th tch kh i ra khi bnh (1) gim 6,72 lt, i qua

bnh (2) li gim thm 4,48 lt. Kh cn li c th tch l 2,24 lt. (Cc th tch kh o ktc). Tm gi

tr ca m l

A. 4,6. B. 1,6. C. 3,2. D. 9,6.

Cu 3: Mt cc nc c cha ng thi 0,01mol Na+, 0,01mol Mg2+, 0,02 mol Ca2+ , 0,02 mol Cl - v

0,05 mol HCO3 -. Nc trong cc l:

A. Nc cng tm thi B. Nc mm

C. Nc cng ton phn D. Nc cng vnh cu

Cu 4: Cho cc pht biu sau: (a) Cht bo c gi chung l triglixerit hay triaxylglixerol; (b) Cht

bo nh hn nc, khng tan trong nc nhng tan nhiu trong cc dung mi hu c; (c) Phn ng

thy phn cht bo trong mi trng axit l phn ng thun nghch; (d) Tristearin, triolein c CT ln

lt l (C17H33COO)3C3H5, (C17H35COO)3C3H5; (e) Triolein c kh nng tham gia phn ng cng

hiro khi un nng c xc tc Ni; (f) Cht bo b thy phn khi un nng trong dd kim.

S pht biu ng l:

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

Cu 5: Cho t t dung dch cha 0,03 mol HCl vo dung dch cha m gam hn hp X gm K2CO3,

NaHCO3 th thy c 0,012 mol kh CO2 thot ra. Cho dung dch Ca(OH)2 d vo 0,05m gam hn hp

X trn thy c 0,17 gam kt ta. Gi tr ca m l


Cu 6: Lin kt ha hc trong phn t HCl l lin kt:

A. cng ha tr khng cc B. hidro

C. cng ha tr phn cc D. ion

Cu 7: Cho 100ml dung dch cha NaOH 0,1M, KOH 0,1M v Ba(OH)2 0,12M vo 100ml dung dch

AlCl3 xM th thu c 0,936 gam kt ta. Nu cho 200 ml dung dch NaOH 0,12M vo 100 ml dung

dch AlCl3 xM th thu c m gam kt ta. Gi tr ca m v x ln lt l (bit cc phn ng xy ra

hon ton)

/305

A. 0,624 v 0,16. B. 0,936 v 0,24. C. 0,624 v 0,14. D. 0,78 v 0,14.

Cu 8: Cho hn hp gm m gam bt Cu v 2,784 gam Fe3O4 vo dung dch H2SO4 long d thy tan

hon ton thu c dung dch X. Dung dch X phn ng va vi 90 ml dung dch KMnO4 0,05M.

Gi tr ca m l

A. 0,336. B. 0,512. C. 0,256. D. 0,32.

Cu 9: Hp th ht V lt kh CO2 vo dung dch cha 0,42 mol Ca(OH)2 thu c a gam kt ta. Tch

ly kt ta, sau thm tip 0,6V lt kh CO2 na, thu thm 0,2a gam kt ta. Th tch cc kh o

ktc. Gi tr ca V l

A. 7,84. B. 5,60. C. 6,72. D. 8,40.

Cu 10: ng dng khng ng ca crom l:

A. iu kin thng, crom to c lp mng oxit mn, bn chc nn c dng m bo v

thp.

B. Crom l kim loi rt cng c th dng ct thy tinh.

C. Crom l kim loi nh, nn c s dng to cc hp kim dng trong ngnh hng khng.

D. Crom lm hp kim cng v chu nhit, nn dng to thp cng, khng g, chu nhit.

Cu 11: Hn hp A gm 2 cht X v Y l ng phn cu to ca nhau v u tc dng c vi dung

dch NaOH. T khi hi ca A so vi khng kh bng 3,0345. Cho 8,8 gam hn hp A tc dng vi

lng va NaOH thu c 10,3 gam hn hp mui ca 2 axit k tip nhau trong dy ng ng.

Cng thc cu to ca 2 mui l:

A. C2H5COONa v CH3COONa. B. C2H5COONa v C3H7COONa

C. HCOONa v C3H7COONa. D. HCOONa v CH3COONa.

Cu 12: Cho cc cht sau: butaien, toluen, etilen, xiclopropan, stiren, vinylaxetilen, propilen, benzen.

S cht lm mt mu dung dch KMnO4 nhit thng l:

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

Cu 13: ha tan mt mu km trong dung dch HCl 20oC cn 27 pht, nu 40oC th ht 3 pht,

cn nu 45oC th cn bao nhiu thi gian:

A. 103,92 giy. B. 60,00 giy. C. 44,36 giy. D. 34,64 giy.

Cu 14: Nguyn tc chung iu ch kim loi l:

A. oxi ha ion kim loi trong hp cht thnh nguyn t kim loi

B. cho hp cht cha ion kim loi tc dng vi cht oxi ha

C. cho hp cht cha ion kim loi tc dng vi cht kh

D. kh ion kim loi trong hp cht thnh nguyn t kim loi

Cu 15: Dy gm cc cht c th iu ch trc tip c axeton l

A. C2H5OH, CH3CHO, CH3COOH.

B. C2H5OH, CH3CH=CHBr, C6H5CH(CH3)2.

C. C6H5CH(CH3)2, CH3CH2CH2OH, HCOOCH3.

D. CH3CHOHCH3, C6H5CH(CH3)2, CH2=CBr-CH3.

Cu 16: Cho cc pht biu sau:

(1) Trong dung dch, tng nng cc ion dng bng nng cc ion m.

(2) Cc cht: NaCl, HBr v NaOH u l cc cht in ly mnh.

(3) Trong 3 dung dch cng pH l HCOOH, HCl v H2SO4, dung dch c nng ln nht l HCOOH.

(4) Phn ng axit-baz xy ra theo chiu to ra cht c tnh axit v baz yu hn.

(5) Phn ng trao i ion trong dung dch khng km theo s thay i s oxi ha.

/305

S pht biu ng l:

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

Cu 17: Cho m gam Mg vo dung dch cha 0,1 mol AgNO3 v 0,25 mol Cu(NO3)2, sau mt thi gian

thu c 19,44 gam kt ta v dung dch X cha 2 mui. Tch ly kt ta, thm tip 8,4 gam bt st

vo dung dch X, sau khi cc phn ng hon ton thu c 9,36 gam kt ta. Gi tr ca m l


Cu 18: Pht biu no sau y l sai:

A. St trng thic b sy st ti lp st bn trong khi t trong khng kh m th thic b n

mn.

B. Ch c ng dng ch to thit b ngn cn tia phng x.

C. Km c ng dng bo v v tu bin bng thp.

D. Bc l kim loi dn in tt hn vng.

Cu 19: Khi b kin, ong t th ly vi bi vo ch b t gim nga l v:

A. Vi tc dng vi cht gy nga HCOOH c trong nc ca chng.

B. Vi lm mt ch b t, nn khng b nga.

C. Vi c tc dng dit khun.

D. Mt nguyn nhn khc.

Cu 20: Hn hp X gm 2 este ng phn ca nhau, t khi hi ca hn hp so vi khng kh bng

2,552. Cho 11,1 gam hn hp X tc dng vi dung dch NaOH d n khi phn ng xy ra hon ton

thu c 11,6 gam hn hp mui. Tnh phn trm khi lng ca cc este trong hn hp X:

A. 66,67% v 33,33%. B. 50% v 50%.

C. 40% v 60%. D. 70% v 30%.

Cu 21: Pht biu no sau y l ng:

A. PVA bn trong mi trng kim khi un nng

B. T olon c sn xut t polime trng ngng.

C. T nilon-6 c iu ch bng phn ng ng trng ngng hexametylen iamin vi axit

aipic.

D. ng trng hp buta-1,3-ien vi acrylonitrin c cao su buna-N.

Cu 22: Cho cc cht sau: CH3COOCH2CH2Cl, ClH3N-CH2COOH, C6H5Cl, HCOOC6H5,

C6H5COOCH3, HO-C6H4-CH2OH, CH3CCl3, CH3COOCCl2-CH3. C bao nhiu cht khi tc dng vi

NaOH c d, nhit v p sut cao cho sn phm c 2 mui:

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

Cu 23: Hn hp X gm hidro, propin, axit propinoic, propinol. t chy hon ton 0,75mol X thu

c 30,24 lit CO2 (ktc). un nng X vi Ni mt thi gian, thu c hn hp Y. T khi ca Y so vi

X bng 1,25. Cho 0,1mol Y phn ng va vi V lit dung dch Br2 0,1M. Gi tr ca V l:

A. 0,80 B. 0,75 C. 1,00 D. 1,25

Cu 24: Cho cc phn ng:

a) Propin + H2 (xc tc Ni, to) b) metyl axetilen + Br2 (CCl4 -200C)

c) axetilen + H2 (xc tc Pd/PbCO3) d) propilen + dung dch AgNO3/NH3

e) butaien + Br2 (CCl4 -400C) g) isobutilen + HCl

h) etilen + H2O (xc tc H+, t

o) i) anlyl clorua + dung dch NaOH

k) glixerol + Cu(OH)2/NaOH

S trng hp xy ra phn ng oxi ha - kh l:

/305

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

Cu 25: 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, Pb(NO3)2, KClO3. S trng hp

xy ra phn ng v s trng hp trong lu hunh b oxi ha ln mc cao nht l:

A. 9 v 3. B. 8 v 2. C. 8 v 1. D. 6 v 1.

Cu 26: Hn hp X gm axetilen, etilen v hirocacbon Y chy hon ton thu c CO2 v H2O theo

t l mol 1:1. Dn X i qua bnh ng dung dch brom d thy khi lng bnh tng ln 0,82 gam, kh

thot ra khi bnh em t chy hon ton thu c 1,32 gam CO2 v 0,72 gam H2O. Phn trm v th

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