BI TP Chng: ANEHIT XETON AXIT CACBOXILIC1. t chy hon ton 0,1 mol
hn hp X gm 2 axit cacboxylic ng ng k tip thu c 6,16 gam CO2 v 2,52
gam H2O. Cng thc ca 2 axit l A. CH3COOH v C2H5COOH. B. C2H3COOH v
C3H5COOH. C. HCOOH v CH3COOH. D. C2H5COOH v C3H7COOH. 2. Chia 0,6
mol hn hp 2 axit no thnh 2 phn bng nhau. Phn 1 t chy hon ton thu c
11,2 lt kh CO2 (ktc). Phn 2 tc dng va vi 500 ml dung dch NaOH 1M.
Cng thc cu to ca 2 axit ban u l A. CH3-COOH v CH2=CH-COOH. B.
H-COOH v HOOC-COOH. C. CH3-COOH v HOOC-COOH. D. H-COOH v
CH3-CH2-COOH. 3. Cng thc chung ca axit cacboxylic no, n chc, mch h
l A. CnH2nO2. B. CnH2n+2O2. C. CnH2n+1O2. D. CnH2n-1O2. 4. Cng thc
chung axit cacboxylic no, a chc, mch h l A. CnH2n-m(COOH)m. B.
CnH2n+2-m(COOH)m. C. CnH2n+1(COOH)m D. CnH2n-1(COOH)m 5. C4H8O2 c s
ng phn axit l A. 1. B. 2. C. 3. D. 4. 6. Trn 20 gam dung dch axit n
chc X 23% vi 50 gam dung dch axit n chc Y 20,64% thu c dung dch D.
trung ho D cn 200 ml dung dch NaOH 1,1M. Bit rng D tham gia phn ng
trng gng. Cng thc ca X v Y tng ng l A. HCOOH v C2H3COOH. B.
C3H7COOH v HCOOH. C. C3H5COOH v HCOOH. D. HCOOH v C3H5COOH. 7. Axit
icacboxylic mch thng c phn trm khi lng ca cc nguyn t tng ng l % C =
45,46%, %H = 6,06%, %O = 48,49%. Cng thc cu to ca axit l A.
HOOC-COOH. B. HOOC-CH2-COOH. C. HOOC-CH2-CH2-COOH. D.
HOOC-CH2-CH2-CH2-COOH. 8. Axit X mch thng, c cng thc thc nghim
(C3H5O2)n. Cng thc cu to ca X l A. C2H4COOH. B. HOOC-(CH2)4-COOH.
C. CH3CH2CH(COOH)CH2COOH. D. HOOCCH2CH(CH3)CH2COOH 9. trung ho 8,8
gam mt axit cacboxylic mch thng thuc dy ng ng ca axit fomic cn
100ml dung dch NaOH 1M. Cng thc cu to ca axit l A. CH3COOH. B.
CH3(CH2)2COOH. C. CH3(CH2)3COOH. D. CH3CH2COOH. 10. X, Y l 2 axit
no, n chc, mch h, k tip nhau trong dy ng ng. Cho hn hp A gm 4,6 gam
X v 6,0 gam Y tc dng ht vi Na thu c 2,24 lt kh H2(ktc). Cng thc phn
t ca X v Y ln lt l A. CH2O2 v C2H4O2. B. C2H4O2 v C3H6O2. C. C3H6O2
v C4H8O2. D. C4H8O2 v C5H10O2. 11. t chy hon ton 0,1 mol hn hp 2
axit cacboxylic l ng ng k tip thu c 3,36 lt CO2 (ktc) v 2,7 gam
H2O. Cng thc phn t ca chng l A. C2H4O2 v C3H6O2. B. C3H6O2 v
C4H8O2. C. CH2O2 v C2H4O2. D. C3H4O2 v C4H6O2. 12. t chy hon ton
0,1 mol hn hp 2 axit cacboxylic l ng ng k tip thu c 3,36 lt CO2
(ktc) v 2,7 gam H2O. S mol ca mi axit ln lt l A. 0,05 v 0,05. B.
0,045 v 0,055. C. 0,04 v 0,06. D. 0,06 v 0,04. 13. Cho 14,8 gam hn
hp 2 axit hu c no, n chc tc dng vi lng va Na2CO3 to thnh 2,24 lt kh
CO2 (ktc). Khi lng mi mui thu c l A. 23,2. B. 21,2. C. 20,2. D.
19,2. 14. Mt hn hp hai axit hu c c phn ng trng gng. Axit c khi lng
phn t ln khi tc dng vi Cl2 (as) thu c ba sn phm monoclo. Cng thc ca
hai axit l A. CH3COOH v HCOOH. B. CH3COOH v HOOC-COOH. C. HCOOH v
CH3(CH2)2COOH. D. HCOOH v (CH3)2CHCOOH. 15. Trung ho 9 gam mt axit
n chc bng lng va NaOH thu c 12,3 gam mui. Cng thc cu to ca axit l
A. HCOOH. B. CH2=CHCOOH. C. CH3COOH. D. CH3CH2COOH. 16. Cng thc thc
nghim ca mt axit no, a chc l (C3H4O3)n. Cng thc phn t ca axit l 17.
t chy hon ton mt axit hu c ta thu c: nCO2 = nH2O. Axit l
A. axit hu c c hai chc, cha no. B. axit vng no. C. axit n chc,
no. D. axit n chc, cha no. 18. Trong cc ng phn axit C5H10O2. S lng
ng phn khi tc dng vi Cl2(as) ch cho mt sn phm th monoclo duy nht
(theo t l 1:1) l A. 4. B. 2. C. 3. D. 1. 19. t chy hon ton 1,44 gam
mui ca axit hu c thm n chc ta thu c 0,53 gam Na2CO3 v 1,456 lt kh
CO2 (ktc) v 0,45 gam H2O. CTCT ca mui axit thm l A. C6H5CH2COONa.
B. C6H5COONa. C. C6H5CH2CH2COONa. D. C6H5CH(CH3)COONa. 20. X l axit
hu c tho mn iu kin: m gam X + NaHCO3 x mol CO2 v m gam X + O2 x mol
CO2. Axit X l A. CH3COOH. B. HOOC-COOH. C. CH3C6H3(COOH)2.
D.CH3CH2COOH. 21. Cho 5,76g axit hu c n chc X tc dng ht vi CaCO3 d,
thu c 7,28g mui. Tn gi ca X l A. axit fomic B. axit axetic C. axit
butyric. D. axit acrylic. 22. trung ho a gam hn hp X gm 2 axit no,
n chc, mch thng l ng ng k tip cn 100 ml dung dch NaOH 0,3M. Mt khc,
t chy hon ton a gam X thu c b gam nc v (b+3,64) gam CO2. Cng thc
phn t ca 2 axit l A. CH2O2 v C2H4O2. B. C2H4O2 v C3H6O2. 23. Thc
hin phn ng este ho m gam CH3COOH bng mt lng va C2H5OH (xc tc H2SO4
c, un nng) thu c 1,76 gam este (h=100%). Gi tr ca m l A. 2,1. B.
1,1. C. 1,2. D. 1,4. 24. Hn hp X gm 1 axit no n chc v 2 axit khng
no n chc c 1 lin kt i, l ng ng k tip nhau. Cho X tc dng va vi 100ml
dung dch NaOH 2M, thu c 17,04 gam hn hp mui. Mt khc, t chy hon ton
X thu c tng khi lng CO2 v H2O l 26,72 gam. Cng thc phn t ca 3 axit
trong X l A. CH2O2, C3H4O2 v C4H6O2. B. C2H4O2, C3H4O2 v C4H6O2. C.
CH2O2, C5H8O2 v C4H6O2. D. C2H4O2, C5H8O2 v C4H6O2 25. Cho hn hp X
gm 2 axit hu c n chc, mch h, l ng ng k tip tc dng va vi dung dch
NaHCO3 thu c 1,12 lt kh CO2 (ktc). Nu t chy hon ton X th thu c
3,136 lt CO2 (ktc). Cng thc cu to ca 2 axit trong X l A. HCOOH v
CH3COOH. B. CH3COOH v C2H5COOH. C. C2H3COOH v C3H5COOH. D. C2H5COOH
v C3H7COOH. 26. (A-07): t chy hon ton a mol mt axit hu c Y c 2a mol
CO2. Mt khc, trung ho a mol Y cn va 2a mol NaOH. Cng thc cu to thu
gn ca Y l A. CH3COOH. B. HOOC-COOH. C. HOOC-CH2-CH2-COOH. D.
C2H5COOH. 27. (B-07): trung ho 6,72 gam mt axit cacboxylic Y (no, n
chc), cn dng 200 gam dung dch NaOH 2,24%. Cng thc ca Y l A.
CH3COOH. B. C2H5COOH. C. C3H7COOH. D. HCOOH. 28. (B-07): t chy hon
ton 0,1 mol mt axit cacboxylic n chc, cn va V lt O2 (ktc), thu c
0,3 mol CO2 v 0,2 mol H2O. Gi tr ca V l A. 8,96. B. 11,2. C. 4,48.
D. 6,72. c k on vn sau tr li 2 cu sau: Hn hp X gm 1 axit no, mch
thng, 2 ln axit (A) v 1 axit khng no c mt ni i trong gc hirocacbon,
mch h, n chc (B), s nguyn t cacbon trong A gp i s nguyn t cacbon
trong B. t chy hon ton 5,08g X thu c 4,704 lt CO2(ktc).Trung ho
5,08g X cn 350ml dung dch NaOH 0,2M. 29. Cng thc phn t ca A v B tng
ng l A. C8H14O4 v C4H6O2. B. C6H12O4 v C3H4O2. C. C6H10O4 v C3H4O2.
D. C4H6O4 v C2H4O2. 30. S gam mui thu c sau phn ng trung ho l A.
5,78. B. 6,62. C. 7,48. D. 8,24. 31. Chia hn hp 2 anehit no n chc
thnh 2 phn bng nhau. t chy hon ton phn 1 thu c 0,54 gam H2O. Phn 2
cho tc dng vi H2 d (h = 100%) thu c hn hp 2 ru. t chy hon ton 2 ru
thu c V lt kh CO2 (ktc). Gi tr ca V l A. 0,112. B. 2,24. C. 0,672.
D. 1,344.
32. Cho 10,2 gam hn hp X gm 2 anehit no (c s mol bng nhau) tc
dng vi dung dch AgNO3 trong NH3 (d) thu c 64,8 gam Ag v mui ca 2
axit hu c. Mt khc, khi cho 12,75 gam X bay hi 136,5OC v 2 atm th th
tch hi thu c l 4,2 lt. Cng thc ca 2 anehit l A. CH3-CHO v OHC-CHO.
B. HCHO v OHC-CH2-CHO. C. CH3-CHO v HCHO. D. OHC-CHO v C2H5-CHO.
33. C hai bnh mt nhn cha C2H2 v . Thuc th duy nht c th nhn c 2 bnh
trn l A. dung dch AgNO3 trong NH3. B. dung dch NaOH. C. dung dch
HCl. D. Cu(OH)2. 34. S lng ng phn anhit ng vi cng thc phn t C5H10O
l A. 3. B. 4. C. 5. D. 6. 35. Anehit no X c cng thc n gin nht l
C2H3O. CTPT ca X l A. C2H3O. B. C4H6O2. C. C6H9O3. D. C8H12O4. 36.
Oxi ho 2,2 gam mt anehit n chc X thu c 3 gam axit tng ng (h =
100%). CTCT ca X l A. CH3-CHO. B. CH3- CH2-CHO. C. (CH3)2CH-CHO. D.
CH3-CH2-CH2-CHO. 37. Cho 1,02 gam hn hp gm hai anehit no, n chc,
mch h (khc HCHO) k tip nhau trong dy ng ng phn ng vi dung dch AgNO3
trong NH3 d, thu c 4,32 gam Ag (h = 100%). Tn gi ca 2 anehit l A.
etanal v metanal. B. etanal v propanal. C. propanal v butanal. D.
butanal v pentanal. 38. Cho 2,3 gam hp cht hu c X (cha C, H, O) phn
ng ht vi dung dch AgNO3 trong NH3 d, to ra 10,8 gam Ag. Tn gi ca X
l 39. t chy mt hn hp anehit l ng ng, thu c a mol CO2 v 18a gam H2O.
Hai anehit thuc loi anehit A. no, n chc. B. vng no, n chc. C. no,
hai chc. D. khng no c mt ni i, hai chc. 40. Khi cho 0,1 mol X (c t
khi hi s vi H2 ln hn 20) tc dng vi dung dch AgNO3 trong NH3 d, thu
c 43,2g Ag. X thuc loi anehit A. n chc. B. 2 chc. C. 3 chc. D. 4
chc. 41. Hp cht hu c X un nh vi dung dch AgNO3 trong NH3 (1:2), thu
c sn phm X. Cho X tc dng vi dung dch HCl hoc dung dch NaOH u thu c
kh. Cng thc cu to ca X l A. HCOOH. B. HCHO. C. CH3COONa. D. CH3CHO.
42. Cho 0,94 g hn hp hai anehit n chc, no, k tip nhau trong dy ng
ng tc dng vi dung dch AgNO3 trong NH3 thu c 3,24 gam Ag. CTPT ca
hai anehit l A. etanal v metanal. B. etanal v propanal. C. propanal
v butanal. D. butanal v pentanal. 43. Trong cng nghip, ngi ta iu ch
HCHO bng phng php A. oxi ho CH3OH (Cu, tO). B. nhit phn (HCOO)2Ca.
C. kim ho CH2Cl2. D. kh HCOOH bng LiAlH4. 44. Cng thc tng qut ca
anehit no, hai chc mch h l A. CnH2n+2O2. B. CnH2nO2. C. CnH2n-2O2.
D. CnH2n-4O2. 45. Cho 7,2 gam mt anehit no, n chc X phn ng hon ton
AgNO3 trong NH3 thu c 21,6 gam Ag. Nu cho A tc dng vi H2 (Ni, to),
thu c ru n chc Y c mch nhnh. CTCT ca A l A. (CH3)2CH-CHO. B.
(CH3)2CH-CH2-CHO. C. CH3-CH2-CH2-CHO. D. CH3-CH(CH3)-CH2-CHO. 46. X
c CTCT l Cl-CH2-CH(CH3)-CH2-CHO. Danh php IUPAC ca X l A.
1-clo2-metyl butanal. B. 2-metylenclorua butanal. C. 4-clo3-metyl
butanal. D. 3-metyl-4-clobutanal. 47. Cho hn hp X gm 2 anehit ng ng
k tip tc dng ht vi H2 (Ni, tO), thu c hn hp Y. t chy hon ton Y thu
c 6,6 gam CO2 v 4,5 gam H2O. Cng thc phn t ca 2 anehit trong X l A.
CH4O v C2H6O. B. CH2O v C2H4O. C. C3H6O v C4H8O. D. C3H8O v C4H10O.
48. t chy hon ton 19,2 gam hn hp X gm 2 anehit ng ng k tip thu c
17,92 lt kh CO2 (ktc) v 14,4 gam H2O. Nu cho 9,6 gam X tc dng ht vi
dung dch AgNO3 trong NH3 (d) th thu c m gam Ag. Gi tr ca m l A.
75,6. B. 151,2. C. 37,8. D. 21,6.
49. Hn hp X gm 2 anehit no n chc, mch thng, l ng ng k tip. Khi
cho 3,32 gam B tc dng vi dung dch AgNO3 trong NH3 d thu c 10,8 gam
Ag. Tn gica 2 anehit trong X l A. etanal v metanal. B. etanal v
propanal. C. propanal v butanal. D. butanal v pentanal. 50. Chuyn
ho hon ton 4,2 gam anehit X mch h bng phn ng trng gng vi dung dch
AgNO3 trong NH3 d ri cho lng Ag thu c tc dng ht vi dung dch HNO3 to
ra 3,792 lt NO2 27o C v 740mmHg. Tn gi ca X l anehit A. fomic. B.
axetic. C. acrylic. D. oxalic. 51. X l hn hp HCHO v CH3CHO. Khi oxi
ho p gam X bng O2 thu c (p+1,6) gam Y gm 2 axit tng ng (h=100%).
Cho p gam X tc dng vi dung dch AgNO3trong NH3 d thu c 25,92 gam Ag.
Phn trm khi lng HCHO trong hn hp B l A. 14,56%. B. 85,44%. C.
73,17%. D. 26,83%. 52. X l hn hp HCHO v CH3CHO. Khi oxi ho X bng O2
thu c hn hp Y gm 2 axit tng ng (h=100%). T khi hi ca Y so vi X l m.
Khong gi tr ca m l A. 1,36 < m < 1,53. B. 1,36 < m <
1,67. C. 1,53 < m < 1,67. D. 1,67 < m < 2,33. 53. Oxi
ho 53,2 gam hn hp 1 ru n chc v 1 anehit n chc thu c 1 axit hu c duy
nht (h=100%). Cho lng axit ny tc dng ht vi m gam dung dch NaOH 2% v
Na2CO313,25% thu c dung dch ch cha mui ca axit hu c nng 21,87%. Tn
gi ca anehit ban u l A. etanal. B. metanal. C. butanal. D.
propanal. 54. t chy hon ton hn hp 3 anehit no n chc thu c 4,48 lt
kh CO2(ktc). Cng lng hn hp , nu oxi ho thnh axit (h = 100%), ri ly
axit to thnh em t chy hon ton th thu c m gam nc. Gi tr ca m l A.
1,8. B. 2,7. C. 3,6. D. 5,4. 55. Cho hn hp X gm 2 anehit n chc tc
dng vi H2 (Ni,to) thy tn V lt H2 (ktc) v thu c 2 ru no. Nu cho hn
hp ru ny tc dng ht vi Na thu c 0,375V lt H2(ktc). Hn hp X gm A. 2
anehit no. B. 2 anehit khng no. C. 1 anehit no v 1 anehit khng no.
D. 1 anehit khng no v 1 anehit thm. 56. (A-07): Cho 0,1 mol anehit
X tc dng vi lng d AgNO3 (hoc Ag2O) trong dung dch NH3, un nng thu c
43,2 gam Ag. Hiro ho X c Y, bit 0,1 mol Y phn ng va vi 4,6 gam Na.
Cng thc cu to thu gn ca X l A. HCHO. B. CH3CH(OH)CHO C. OHC-CHO. D.
CH3CHO. 57. (A-07): Cho 6,6 gam mt anehit X n chc, mch h tc dng vi
lng d AgNO3 (hoc Ag2O) trong dung dch NH3, un nng. Lng Ag sinh ra
cho phn ng ht vi HNO3 thot ra 2,24 lt kh NO duy nht (ktc). Cng thc
cu to thu gn ca X l A. CH3CHO. B. HCHO. C. CH2=CHCHO. D. CH3CH2CHO.
58. (A-07): Dy gm cc cht u tc dng vi AgNO3 trong dung dch NH3 l A.
anehit axetic, but-1-in, etilen. B. anehit fomic, axetilen, etilen.
C. anehit axetic, but-2-in, axetilen. D. axit fomic, vinylaxetilen,
propin. 59. (B-07): t chy hon ton a mol mt anehit X mch h to ra b
mol CO2 v c mol H2O (bit b = a + c). Trong phn ng trng gng, mt phn
t X ch cho 2 electron. X thuc dy ng ng anehit A. no, hai chc. B.
no, n chc. C. khng no c hai ni i, n chc. D. khng no c mt ni i, n
chc. 60. (B-07): Khi oxi ho 2,2 gam mt anehit n chc thu c 3 gam
axit tng ng. Cng thc ca anehit l A. C2H3CHO. B. CH3CHO. C. HCHO. D.
C2H5CHO. 61. Chia m gam andehit thnh 2 phn bng nhau -Phn 1 b t chy
hon ton thu c s mol CO2 bng s mol H2O -Phn 2 cho tc dng vi AgNO3
trong dung dch NH3 d thu c Ag kt ta theo t l mol nandehit : nAg = 1
: 4 . Vy andeht l A. Andehit no, n chc B. Andehit no, hai chc C.
Andehit fomic D. Khng xc nh c 62. t chy mt hn hp cc andehit ng ng
thu c s mol CO2 bng s mol H2O th l dy ng ng A. Andeht no , n chc B.
Andehit no, mch vng C. Andehit no , hai chc D. C A , B , C u ng
63. Chn pht biu sai trong cc pht biu sau y ? A. Phn t HCHO c cu
to phng , cc gc HCH v HCO u xp x 1200 . Tng t lin kt C = C , lin kt
C = O gm 1 lin kt (xich ma) o v 1 lin kt (pi) , lin kt xich ma bn
cn lin kt pi km bn ; tuy nhin khc vi lin kt C = C , lin kt C = O
phn cc mnh B. Khc vi ru metylic v tng t nh metylclorua , andehit
fomic l cht kh v khng c lin kt hidro lin phn t C. Tng t nh ru
metylic v khc vi metylclorua , andehhit fomic tan tt trong nc v
trong nc HCHO tn ti ch yu dng HCH(OH)2 (do phn ng cng nc) d tan ,
nu cn phn t HCHO th phn t ny cng to c lin kt hidro vi nc. D. fomon
hay fomalin l dung dch cha 37 40% HCHO trong ru 64. Phn ng ngng t 2
phn t etanal to thnh hp cht andol ( va c nhm andehit va c nhm ru )
c thc hin vi cht xc tc l A. AlCl3 B. Ni C. Axit D. Baz 65. Trong
nhiu tinh du tho mc c nhng andehit khng no to nn mi thm cho cc tinh
du ny . V d tinh du qu c andehit xinamic C6H5CH=CH-CHO , trong tinh
du x v chanh c xitronelal C9H17CHO . C th dng ho cht no tinh ch cc
andeht trn ? A. AgNO3/ NH3 B. Cu(OH)2 / NaOH C. NaHSO3 bo ho v HCl
D. H2(Ni ,t0) 66. Cng thc phn t ca andehit c dng tng qut CnH2n+2-2a
-2kOk . Hy cho bit pht biu sai ? A. Cc ch s n , a , k c iu kin n
> 1 ; a > 0 ; k > 1 B. Nu a = 0 ; k = 1 th thu c andehit
no , n chc C. Nu andehit hai chc v mt vng no th cng thc phn t c dng
CnH2n-4O2 n > 5 D. Tng s li kt pi ( ) v vng trong cng thc cu to
l a 67. T khi hi ca 2 andehit no , n chc i vi oxi < 2 . t chy
hon ton m gam hn hp gm hai andehit trn thu c 7,04 gam CO2 . Khi cho
m gam hn hp trn phn ng hon ton vi AgNO3 d trong dung dch NH3 thu c
12,96 gam Ag . Cng thc phn t ca hai andehit v thnh phn % khi lng ca
chng l A. CH3CHO : 27,5% ; CH3CH2CHO : 72,5% B. HCHO : 20,5% ;
CH3CHO : 79,5% C. HCHO : 3,82% ; CH3CH2CHO : 96,18% D. C A v C 68.
Cho cht A v H2 i qua Ni nung nng thu c cht B . Cht B c t khi hi i
vi NO bng 2 . Ho lng cht B v cho 3 gam cht lng B tc dng vi Na d thu
c 0,7 lt H2 00C v 0,8 atm . Cho 2,8 gam cht A tc dng vi AgNO3 trong
dung dch NH3 d to ra 10,8 gam Ag . Cng thc phn t ca A l A. C2H3CHO
B. C2H5CHO C. CH3CHO D. HCHO 69. Hp cht c cng thc phn t C3H6O tc
dng c vi Na , H2 , trng hp . Vy C3H6O c th l : A. Propanal B.
Axeton C. Ru Anlylic D. Etylvinylete t chy hon ton 19,2 gam hn hp X
gm 2 andehit ng ng lin tip thu c 17,92 lt CO2(ktc) v 14,4 gam H2O .
Nu cho 9,6 gam hn hp trn tc dng vi AgNO3/NH3 d th thu c m gam Ag kt
ta . Nu ly 9,6 gam hn hp trn cho phn ng cng vi H2 hon ton thu c hn
hp X1 gm 2 cht mi . t chy hon ton X1 thu c V lt CO2(ktc) v m, gam
H2O 70. Cng thc ca 2 andeht l A. CH3CHO v CH3CH2CHO B. HCHO v
CH3CHO C. O=CH-CH=O v O=C-CH2-CH=O D. CH3CH2CHO v C3H7CHO 71. Khi
lng tnh bng gam ca Ag thu c l A. 75,6g B. 54,0g C. 5,4g D. 21,6g
72. Gi tr V(CO2) v m, (H2O) A. 17,92 lit v 14,4 g B. 8,96 lt v
11,7g C. 4,48 lit v 7,2 g D. 8,96 lit v 7,2g 73. Cho hn hp metanal
v hidro i qua ng ng Ni nung nng . Dn ton b hn hp sau phn ng vo bnh
nc lnh lm ngng t hon ton hi ca cht lng v ho tan cht kh c th tan c ,
khi khi lng ca bnh tng 8,65g . Ly dung dch trong bnh ny em un vi
AgNO3 trong dung dch NH3 thu c 32,4 gam Ag ( cc phn ng xy ra hon
ton) . Khi lng metanal ban u l : A. 7,60g B. 7,25g C. 8,25g D.
8,40g 74. Mt ru no c cng thc thc nghim (C2H5O)n . Vy cng thc phn t
ca ru l A. C6H15 O3 B. C4H10O2 C. C4H10O D. C6H14O3
75. Cho hn hp gm khng kh (d) v hi ca 24 gam metanol i qua cht xc
tc l Cu nung nng , ngi ta thu c 40 ml fomalin 36% c khi lng ring d
= 1,1g/ml . Hiu sut ca qu trnh trn l A. 80,4% B. 70,4% C. 65,5% D.
76,6% 76. Cho 0,94g hn hp 2 andehit no, n chc k tip trong cng mt dy
ng ng (khng cha andehit fomic) tc dng vi dung dch vi dung dch AgNO3
trong NH3 d thu c 3,24 gam Ag . Cng thc phn t 2 andehit l A. HCHO v
CH3CHO B. CH3CHO v C2H5CHO C. C2H5CHO v C3H7CHO D. C3H7CHO v
C4H9CHO 77. Hn hp A gm metanal v etanal . Khi oxi ho m gam A (hiu
sut 100%) thu c hn hp B gm 2 axit hu c tng ng c dB/A = a . Gi tr ca
a trong khong A. 1,45 < a < 1,50 B. 1,26 < a < 1,47 C.
1,62 < a < 1,75 D. 1,36 < a < 1,53 78. Phng php no sau
y c dng trong cng nghip sn xut HCHO ? A. Oxi ho metanol nh xc tc Cu
hoc Pt B. Oxi ho metanol nh xc tc nit oxit C. Thu phn CH2Cl2 trong
mi trng kim hoc nhit phn (HCOO)2Ca D. Phng php A v B Hn hp Y gm 2
andehit ng ng lin tip . t chy hon ton 2,62 gam hn hp Y thu c 2,912
lit CO2(ktc) v 2,344 gam H2O . Nu cho 1,31 gam hn hp Y tc dng vi
dung dch AgNO3 d trong NH3 th thu c m gam Ag 79. Hai andehit thuc
dy ng ng A. Cha no 2 chc c lin kt pi mch cacbon B. No n chc C. No 2
chc D. Cha no n chc c 1 lin kt pi mch cacbon 80. Cng thc phn t ca 2
andehit l A. CH2O , C2H4O B. C3H4O , C4H6O C. C2H4O , C3H6O D.
C3H6O , C4H8O 81. Khi lng Ag thu c l A. 5,4g B. 10,8g C. 1,08g D.
2,16g 82. Hp cht hu c A c cng thc phn t CxHyO2 c MA < 90 dvC , A
tham gia phn ng trng gng v c th tc dng vi H2/Ni,t0 sinh ra mt ancol
c cacbon bc bn trong phn t . Cng thc cu to ca A l A. (CH3)3CCHO B.
(CH3)2CHCHO C. (CH3)3C-CH2-CHO D. (CH3)2CH-CH2-CHO 83. Hn hp X gm 2
andehit A v B . Oxi ho 7,2 gam hn hp X bng dung dch AgNO3 d trong
NH3 sau axit ho thu c 2 axit tng ng . Trung ho ht lng axit bng dung
dch NaOH , sau nung nng hn hp vi vi ti xt thu c 3,36 lt hn hp kh ,
cho hn hp kh vo 300 ml dung dch KMnO4 1M trong H2SO4thy th tch hn
hp gim i 1/3 ng thi mu tm ca dung dch b nht mu. Bit s nguyn t
cacbon trong A ln hn trong B mt nguyn t (cc kh u o ktc) . Cho bit
cng thc cu to ca A v B A. HCHO v CH3CHO B. CH3CHO v C2H5CHO C.
CH2=CH-CHO v CH3-CHO D. kt qu khc 84. Cu 27 : Cho 3,6 gam ankanal X
phn ng hon ton vi dung dch AgNO3/NH3 , lng Ag sinh ra cho tc dng ho
ton vi dung dch HNO3 c thu oc 2,8 lt kh NO2 ( sn phm kh duy nht
136,50C , p sut 1,2 atm) . Cng thc phn t ca ankanal l A. HCHO B.
CH3CHO C. C2H5CHO D. Kt qu khc 85. Cho 4,2 gam mt andehit A mch h
tc dng vi dung dch AgNO3 d trong NH3 thu c hn hp mui B . Nu cho lng
Ag sinh ra tc dng vi dung dch HNO3 c to ra 3,792 lt kh NO2 ( sn phm
kh duy nht 270C , p sut 740mmHg) t khi hi ca A so vi nit nh hn 4 .
Mt khc khi cho 4,2 gam A tc dng vi 0,5 mol H2(Ni t0) thu c cht C vi
hiu sut 100% . Cho C tan vo nc c dung dch D . cho 1/10 dung dch D
tc dng vi Na cho 12,04 lt H2(ktc) . Cng thc phn t ca A l A. C2H5CHO
B. CH3CHO C. C2H3CHO D. Kt qu khc 86. Hp cht hu c X c cng thc phn t
C4H6O2 v ch cha mt loi nhm chc . T X v cc cht v c khc , bng 3 phn
ng lin tip c th iu ch c cao su Buna . Cng thc cu to c th c ca X l :
A. O=CH-CH2-CH2-CH=O B. HO-CH2-C=C-CH2-OH C. CH3-CO-CO-CH3 D. C A ,
B , C u ng
87. Ly 0,94 gam hn hp hai andehit no , n chc , k tip trong cng
mt dy ng ng tc dng ht vi dung dch AgNO3/NH3 d thu c 3,24 gam Ag .
Cng thc phn t hai andehit l : A. HCHO v CH3CHO B. CH3CHO v C2H5CHO
88. Hp cht hu c X khi un nng nh vi dung dch AgNO3/NH3 (d) thu c sn
phm Y . Y tc dng c vi dung dch HCl hoc dung dch NaOH . u cho 2 kh v
c . Hp cht X l A. HCHO B. HCOOH C. HCOONH4 D. C A , B , C u ng 89.
Ba cht hu c X , Y , Z c cng thc phn t dng (CH2O)n vi n < 3 . Cho
bit - X ch tham gia phn ng trng gng - Y Va tham gia phn ng trng gng
, va phn ng vi Na - Z tc dng vi NaHCO3 va , lm bay hi nc ca dung
dch sau phn ng , sn phm khan cn li c th tip tc tc dng vi Na . Oxi
ho Z iu kin thch hp to thnh hp cht ch cha mt loi nhm chc . t chy
hon ton X , Y , Z vi s mol bng nhau th s mol nc thu c t X nh hn t Y
v s mol nc thu c t Y nh hn t Z . Hy xc nh cng thc cu to ca X , Y ,
Z A. CH3-CHO ; HO-CH2CH2-CHO ; CH3COOH B. C2H5-CHO ; HO-CH2-CH2-OH
; HO-CH2-COOH C. HCHO . HO-CH2-CHO , HO-CH2-CH2COOH D. Kt qu khc
90. Cc hp cht hu c mch h cha cc nguyn t cacbon , hidro v oxi l M ,
N , P , Q u c khi lng phn t bng 60 dvC . Cc cht N , P , Q tc dng c
vi Na gii phng H2 . Khi oxi ho N ( c xc tc) to thnh sn phm c kh nng
tham gia phn ng trng gng . Cht P tc dung c vi dung dch NaOH . Cht Q
c kh nng tham gia phn ng trng gng Cht M khng tc dng vi Na , khng tc
dng vi dung dch NaOH v khng tham gia phn ng trng gng . Cc cht M , N
, P ,Q c th l : M N P Q A CH3OC2H5 C3H7OH CH3COOH HOCH2CHO B C3H7OH
CH3OC2H5 HOCH2CHO CH3COOH C HOCH2CHO CH3COOH CH3OC2H5 C3H7OH D Kt
qu Khc 91. Hai hp cht hu c X v Y ng chc cha cc nguyn t C , H , O
khi tc dng vi dung dch AgNO3 trong NH3 th 1 mol X hoc Y to ra 4 mol
Ag . Khi t chy X v Y th t l s mol O2 tham gia phn ng t chy , CO2 v
H2O to thnh nh sau - i vi X : n(O2) : n (CO2) : n (H2O) = 1 : 1 : 1
- i vi Y : n (O2) : n (CO2) : n (H2O) = 1,5 : 2 : 1 Cng thc cu to
thu gn ca X v Y l A. CH3CHO v HCHO B. HCHO v C2H5CHO C. HCOOH v
HCHO D. HCHO v O=CH-CH=O 92. Cho hp cht hu c X (phn t ch cha C , H
, O v mt loi nhm chc) . Bit khi cho 5,8 gam X tc dng vi dung dch
AgNO3 d trong NH3 to ra 43,2 gam Ag . Mt khc 0,1mol X sau khi c
hidro ha hon ton phn ng va vi 4,6 gam Na . Cng thc cu to ca X l A.
HCOOH B. CH3CHO C. O=CH-CH=O D. CH2=CH-CHO 93. Cho 13,6 gam mt hp
cht hu c X cha C , H , O tc dng va vi 300ml dung dch AgNO3 2M trong
NH3 thu c 43,2 gam Ag . Bit t khi hi ca X so vi oxi bng 2,125 . Xc
nh cng thc cu to ca X A. CH3CH2CHO B. CH2=CH-CH2-CHO C. CH=C-CH2CHO
D. CH=C-CHO 94. Mt hp cht hu c Y cha cc nguyn t C , H , O ch cha mt
loi nhm chc . khi cho 0,01 mol Y tc dng vi dung dch AgNO3 trong NH3
d thu c 4,32 gam Ag . Y c cu to mch thng v cha 37,21% oxi v khi lng
. Cng thc cu to ng ca Y l A. HCHO B. CH3CHO C. O=CH-CH=O D.
O=CH-(CH2)2CH=O 95. Cho 0,1 mol andehit X tc dng hon ton vi H2 th
cn 6,72 lt H2(ktc) v thu c sn phm Y . Cho ton b lng Y tc dng vi Na
d thu c 2,24 lt kh H2(ktc) . Mt khc ly 8,4 gam X tc dng vi dung dch
AgNO3 d thu c 43,2 gam Ag . Xc nh cng thc cu to ca X v Y A. CH3CHO
v C2H5OH B. C2H2(CHO)2 v HOCH2CH(CH3)CH2OH C. C2H2(CHO)2 v
HO-CH2(CH2)2CH2OH D. C B v C
96. Cht hu c X cha C , H , O trong hidro chim 2,439% v khi lng .
Khi t chy X thu c s mol ca H2O bng s mol ca X b t chy . Bit 0,1 mol
X tc dng hon ton vi dung dch AgNO3 d trong NH3 thu c 43,2 gam Ag .
Xc nh cng thc cu to ca X A. HCOOH B. CH3CHO C. CH=C-CHO D.
O=CH-C=C-CH=O 97. Cho 2,4 gam mt hp cht hu c X (cha C , H , O) tc
dng hon ton vi dung dch AgNO3 d trong NH3 thu c 7,2 gam Ag . Xc nh
cng thc cu to thu gn ca X A. CH3CHO B. C2H5CHO C. HCHO D. C3H7CHO
98. Cho 3 hp cht hu c X , Y , Z . Bit X cha 3 nguyn t C, H ,Cl
trong clo chim 71,72% theo khi lng . Y cha 3 nguyn t C , H , O
trong oxi chim 55,71% theo khi lng . Khi thu phn X trong mi trng
kim hoc hidro ho Y u thu c hp cht Z . Xc nh cng thc cu to ca X,Y,Z
A. CH3Cl , HCHO , CH3OH B. C2H5Cl , CH3CHO , C2H5OH C. C2H4Cl2 ,
(CHO)2 , C2H4(OH)2 D. Kt qu khc 99. X l hp cht hu c mch h n chc cha
C , H , O . t chy hon ton 1 mol X cn 4 mol oxi v thu c CO2 v hi H2O
c th tch bng nhau (o cng iu kin nhit v p sut) . Xc nh cng thc cu to
c th c ca X A. CH3-CH2-CHO hoc (CH3)2CO B. CH2=CH-CH2-OH C.
CH2=CH-O-CH3 D. c A , B , C 100. t chy hon ton 0,059 gam hp cht hu
c X ch thu c 0,140 gam CO2 v 0,072 gam H2O . T khi hi ca X i vi oxi
bng 2,31 1-Lp cng thc phn t ca X A. C3H6O B. C2H6O2 C. C4H10O D.
C5H12O 2- Ly 7,4 gam hp cht X em oxi ho hon ton thnh hai cht Y v Z
. Cht Y c phn ng trng gng . Cht Z b trung ho bi 100 ml dung dch
NaOH 0,1M . Cng thc cu to thu gn ca Y v Z A. CH3CHO v CH3COOH B.
HCHO v HCOOH C. C3H7CHO v C3H7COOH D. Kt qu khc 101. Cho 47,84 gam
ru etylic tc dng vi hn hp K2Cr2O7/H2SO4 . Sn phm ca phn ng c tch
ngay ra khi mi trng phn ng bng phng php chng ct v dn vo dung dch
AgNO3/NH3 d . Sau khi kt thc phn ng , thu c 124,2 gam Ag . Tnh hiu
sut ca phn ng oxi ho ru etylic A. 55% B. 70% C. 75% D. Kt qu khc
102. X l hp cht hu c cha C , H , O . Bit X c phn ng trng gng v phn
ng vi dung dch NaOH . t chy hon ton a mol X thu c 3a mol CO2 v H2O
. X l A. HCOOH B. HCOOCH3 C. CHO-COOH D. CHO-CH2-COOH 103. C th dng
nc Brom phn bit A. Andehit no v xeton no B. Andehit no v ru khng no
C. Phenol v anilin D. A hoc C 104. Ngi ta thc hin phn ng trng hp
axetandehit ( andehit axetic) trong mi trng axit nhit thp (t0 <
00C) thu c cht t rn gi l cn kh c tn l metandehit . Cng thc ca
metandehit l : A. CH3-CH(OH)-CH2-CHO B. [-CH(CH3)-O-]3 C.
[-CH(CH3)-O-]4 D. [-CH2-O-]n n = 10 n 100 105. t chy hon ton 0,8
mol hn hp gm imetyl ete v ancol etylic ri cho ton b sn phm chy vo
bnh ng dung dch Ca(OH)2 d th khi lng kt ta thu c l A. 80 g B. 160 g
C. 170 g D. 150 g 106. Thc hin phn ng ehirat ha (xc tc axit H2SO4
c) mt ancol no n chc X trong iu kin thch hp, sau khi phn ng xy ra
hon ton thu c cht hu c Y c t khi so vi X bng 1,7. C.T.P.T ca X l A.
CH3OH B. C2H5OH C. C3H7OH D. C4H9OH 107. un nng mt hn hp gm hai
ancol no n chc vi H2SO4 c 1400C thu c 36 g hn hp ete c s mol bng
nhau v 10,8 g nc. C.T.P.T ca hai ancol ny l A. C2H5OH v C3H7OH B.
C3H7OH v C4H9OH C. CH3OH v C2H5OH D. C4H9OH v C5H11OH 108. t chy
hon ton a mol mt ancol X, thu c 13,2 g CO2 v 7,2 g nc. Gi tr ca a l
A. 0,05 B. 0,08 C. 0,2 D. 0,1
109. t chy hon ton 1 mol cht hu c X, thu c s mol nc gp hai ln s
mol CO2, cn khi cho X tc dng vi Na d th thu c s mol hiro bng mt na
s mol ca X. C.T.P.T ca X l A. CH3OH B. C2H5OH C. C3H5OH D. C2H6O2
110. t chy hon ton 0,15 mol mt ancol no n chc thu c 10,08 lt (ktc)
CO2. CTPT ca ancol ny l A. CH3OH B. C2H5OH C. C3H7OH D. C3H5OH 111.
t chy hon ton m gam hn hp gm hai ancol no n chc thu c 70,4 g CO2 v
39,6 g nc. Gi tr ca m l A. 33,2 g B. 34,5 g C. 35,4 g D. 32,1 g
112. un nng hn hp X gm 0,1 mol CH3OH v 0,2 mol C2H5OH vi H2SO4 c
1400C thu c m gam ete to thnh, hiu sut phn ng t 90%. Gi tr ln nht
ca m l A. 12,4 g B. 6,4 g C. 9,7 g D. 8,73 g 113. t chy hon ton 0,1
mol etilenglicol v 0,2 mol ancol A cn 0,95 mol oxi, thu c 0,8 mol
CO2 v 1,1 mol nc. C.T.P.T ca A l A. C3H7OH B. C2H5OH C. C3H6(OH)2
D. C3H5(OH)3 114. Cho 2,84 g mt hn hp gm hai ancol n chc trong cng
dy ng ng tc dng vi mt lng Na va , thu c 4,6 g mui v V lt (ktc) kh
thot ra. Gi tr ca V l A. 0,672 B. 0,896 C. 1,12 D. 1,344 115. Cho
1,42 g mt hn hp gm hai ancol n chc k tip nhau trong cng dy ng ng tc
dng vi mt lng Na va , thu c 2,3 g mui. C.T.P.T ca hai ancol ny l A.
CH3OH v C2H5OH B. C2H5OH v C3H7OH C. C2H5OH v C3H5OH D. C3H5OH v
C4H7OH 116. Cho 18,7 g mt hn hp gm ba ancol n chc tc dng va vi Na
thu c 29,7 g mui. C.T.P.T ca ancol c khi lng phn t nh nht l A.
C2H5OH B. C3H7OH C. CH3OH D. C3H5OH 117. Cho a gam hn hp gm hai
ancol n chc k tip nhau trong cng dy ng ng tc dng ht vi Na d, thu c
2,24 lt (ktc) kh H2. Mt khc, oxi ha hon ton a gam X bng CuO nung
nng th thu c hn hp Y gm hai anehit. Cho ton b Y tc dng ht vi dung
dch AgNO3/NH3 th thu c 64,8 g Ag. C.T.P.T ca hai ancol ny l A.
C2H5OH v C3H7OH B. C3H7OH v C4H9OH C. CH3OH v C2H5OH D. C4H9OH v
C5H11OH 118. un nng 34,5 ml ancol etylic (D=0,8 g/ml) vi H2SO4 c
nhit 1700C. Hn hp sn phm dng hi c dn ln lt qua bnh 1 cha dung dch
H2SO4 c, bnh 2 cha dung dch NaOH c v bnh 3 cha dung dch Br2 d. Kt
thc th nghim thy bnh 3 tng 10,08 g. Hiu sut phn ng tch nc t ancol
etylic l A. 50% B. 60% C. 70% D. 80% 119. Cho hi mt ancol no n chc
X qua bnh ng CuO (d) nung nng. Sau khi phn ng hon ton, thu c hn hp
hi c t khi so vi hiro l 15,5. C.T.P.T ca X l A. C3H7OH B. C3H5OH C.
CH3OH D. C2H5OH 120. X l mt ancol no mch h. t chy hon ton 0,05 mol
X cn 5,04 lt (ktc) thu c hi nc v 6,6 g CO2. C.T.P.T ca X l A.
C3H7OH B. C3H5(OH)3 C. C2H5OH D. C2H4(OH)2 121. Hn hp X gm metanol
v etanol. Cho 16,3 g X tc dng ht vi Na thy thot ra 4,48 lt (ktc)
kh. Thnh phn % theo khi lng ca metanol v etanol trong X ln lt l A.
29,45% v 70,55% B. 70,55% v 29,45% C. 41,03% v 58,97% D. 58,97% v
41,03% 122. un nng mt ancol n chc X vi dung dch H2SO4 c trong iu
kin nhit thch hp sinh ra cht hu c Y c t khi so vi X l 0,622.
C.T.P.T ca X l A. CH4O B. C3H8O C. C2H6O D. C4H10O 123. Cho 6,1 g
hn hp hai ancol no n chc k tip nhau trong cng dy ng ng tc dng ht vi
2,76 g Na thu c 8,77 g cht rn. C.T.P.T ca hai ancol ny l A. C2H5OH
v C3H7OH B. C3H7OH v C4H9OH C. CH3OH v C2H5OH D. C4H9OH v
C5H11OH
124. = Cho hn hp X gm hai ancol no n chc k tip nhau trong cng dy
ng ng tc dng vi CuO (d) nung nng, thu c hn hp hi Y c t khi so vi
hiro l 13,75. C.T.P.T ca hai ancol l A. C2H5OH v C3H7OH B. C3H7OH v
C4H9OH C. CH3OH v C2H5OH D. C4H9OH v C5H11OH 125. t chy hon ton m
gam hn hp gm hai ancol no n chc mch h ri dn ton b sn phm vo bnh ng
dung dch nc vi trong d. Kt thc th nghim thy bnh tng 47,64 g v c 69
g kt ta. Gi tr ca m l A. 12, 6 g B. 10,2 g C. 10,12 g D. 14,52 g
126. Trn hai ancol no n chc mch h hn km nhau hai nguyn t C trong
phn t theo t l mol 1:1 thu c hn hp X. un nng X vi H2SO4 c 1400C.
Sau khi cc phn ng kt thc, thu c 10,2 g hn hp ete v 1,8 g nc.
C.T.P.T ca hai ancol ny l A. CH3OH v C3H7OH B. C2H5OH v C4H9OH C.
C3H7OH v C5H11OH D. C4H9OH v C6H13OH 127. = Cho nc brom d vo dung
dch phenol thu c 6,62 g kt ta trng. Khi lng phenol c trong dung dch
l A. 3,6 g B. 2,67 g C. 1,52 g D. 1,88 g 128. Hn hp X gm ancol
etylic v phenol. Cho a gam X tc dng ht vi Na, thu c 1,68 lt (ktc)
H2. Mt khc a gam X tc dng va ht vi 25 ml NaOH 2M. Gi tr ca a l A.
4,6 B. 9,3 C. 13,9 D. 9,2 129. Cho m gam hn hp C2H4(OH)2 v
C3H6(OH)2 tc dng vi mt lng va Na thu c 3,36 lt (ktc) H2. C cn dung
dch thu c 15,4 g mui khan. Gi tr ca m l A. 8,6 B. 8,8 C. 8,7 D. 9,3
130. t chy hon ton 0,2 mol mt ancol no mch h cn dng va ht 15,68 lt
(ktc) oxi, thu c 26,4 g CO2. C.T.P.T ca ancol ny l A. C2H6O B.
C3H8O C. C3H8O2 D. C3H8O3 131. = t chy hon ton 0,1 mol mt ancol no
mch h cn dng va ht 5,6 lt (ktc) oxi, thu c 5,4 g nc. C.T.P.T ca
ancol ny l A. C2H6O2 B. C2H6O C. C3H8O2 D. C3H8O3 132. t chy hon
ton 0,1 mol mt ancol no mch h cn dng va ht 8,96 lt (ktc) oxi, thu c
7,2 g nc. Nu cho 0,1 mol ancol ny tc dng vi Na d th th tch (ktc) kh
H2 thu c l A. 1,12 lt B. 2,24 lt C. 3,36 lt D. 0,56 lt 133. t chy
hon ton 0,3 mol mt ancol no mch h thu c 21,6 g nc. Mt khc, khi cho
0,1 mol ancol ny tc dng vi mt lng va Na th thu c 3,36 lt (ktc) kh.
C.T.P.T ca ancol ny l A. C2H6O2 B. C2H6O C. C3H8O2 D. C3H8O3 134. t
chy hon ton mt lng ancol mch h, thu c 8,8 g CO2 v 5,4 g nc. Mt khc,
khi cho 0,2 mol ancol ny tc dng vi mt lng va Na th thu c 4,48 lt
(ktc) H2. C.T.P.T ca ancol ny l A. C2H6O2 B. C2H6O C. C3H8O2 D.
C3H8O3 135. Cho 1,28 g mt dung dch ancol A trong nc c nng 71,875%
tc dng vi mt lng d Na thu c 5,6 lt (ktc) kh. Bit t khi ca A i vi
nit ioxit bng 2. C.T.P.T ca ancol ny l A. C3H5(OH)3 B. C4H10(OH)2
C. C4H8(OH)2 D. C4H6(OH)2 136. Khi t chy hon ton 1 mol cht hu c n
chc X mch h thu c CO2 v nc c s mol bng nhau v s mol oxi tiu tn gp 4
ln s mol ca X. Bit X lm mt mu Br2 trong CCl4 v khi cng H2 th to ra
ancol no n chc. C.T.C.T ca X l A. CH2=CHCH2OH B. CH3CH=CHCHO C.
CH2=CHCH2CH2OH D. CH3CH2CH2CHO 137. Cho mt ancol no n chc X tc dng
vi HBr thu c hp cht Y c brom chim 58,4% v khi lng. Nu un nng X vi
H2SO4 c 1700C th thu c 3 olefin. Tn gi ca X l A. butan 1 ol B.
butan 2 ol C. 2 metyl butan 1 ol D. 2 metyl butan 2 ol
138. Cho 14,5 g hn hp gm mt ancol no n chc X v mt iancol no Y tc
dng ht vi kim loi kali, thu c 3,92 lt (ktc) kh thot ra. Mt khc em t
chy hon ton 29 g hn hp trn th thu c 52,8 g CO2. C.T.P.T ca X v Y ln
lt l A. CH3OH v C2H4(OH)2 B. C2H5OH v C2H4(OH)2 C. CH3OH v
C3H6(OH)2 D. C2H5OH v C3H6(OH)2 139. t chy hon ton 13,4 g hn hp hai
ankanol X v Y l ng ng k tip nhau (MX
