Chọn đáp án D

Đáp án: A

Glucozơ → m e n   r u o u   C 2 H 5 O H → m e n   g i a m   C H 3 C O O H

Phương trình hóa học:

C 6 H 12 O 6 → m e n   r u o u   2 C 2 H 5 O H   +   2 C O 2

C 2 H 5 O H   +   O 2   → m e n   g i a m     C H 3 C O O H   +   H 2 O

=> chất X là C 2 H 5 O H

Tinh bột-->Glucozo-->Rượu etylic-->Axit axetic-->Etyl axetat

Lên men-

Men Giấm

Đáp án C.

CH₃CHO, CH₃COOCH₃

Đáp án B

câu 2

b )2H2O+CaC2\(\rightarrow\)C2H2 +Ca(OH)2

e)C6H12O6\(\rightarrow\)2C2H5OH+2CO2

n)C2H5OH +2Na\(\rightarrow\)2C2H5ONa+H2

CÂU 1

1. \(2CH_3COOH+Zn\rightarrow\left(CH_3COO\right)_2Zn+H_2\)

\(\left(CH_3COO\right)_2Zn+2HCl\rightarrow ZnCl_2+2CH_3COOH\)

2. b) \(2H_2O+CaC_2\rightarrow Ca\left(OH\right)_2+C_2H_2\)

e) \(C_6H_{12}O_6\xrightarrow[30-35^oC]{menruou}2C_2H_5OH+2CO_2\)

h) \(C_2H_5Br+H_2O\rightarrow C_2H_5OH+HBr\)

m) \(CH_4+2O_2\underrightarrow{t^o}CO_2+2H_2O\)

n) \(C_2H_5OH+Na\rightarrow C_2H_5ONa+\dfrac{1}{2}H_2\)

CaO + 3C => CaC2 + CO

CaC2 + 2H2O => Ca(OH)2 + C2H2 (axetilen)

3C2H2 => (cacbon hoạt tính, 600^oC) C6H6

C6H6 + Br2 => HBr + C6H5Br (brom benzen)

C2H2 + H2 => (t^o,Pd) C2H4

C2H4 + H2O => (140^oC, H2SO4đ) C2H5OH (rượu etylic)

C2H5OH + O2 => (men giấm) H2O + CH3COOH (axit axetic)

CH3COOH + C2H5OH => (t^o,H2SO4đ, pứ hai chiều) H2O + CH3COOC2H5 (etyl axetat)

n -(CH2-CH2)- => (t^o,xt,P) -(CH2-CH2)-n

\(C_{12}H_{22}O_{11}+H_2O\underrightarrow{t^0}C_6H_{12}O_6+C_6H_{12}O_6\)

\(C_6H_{12}O_6\underrightarrow{men.rượu}2C_2H_5OH+2CO_2\)

\(C_2H_5OH+O_2\underrightarrow{men.giấm}CH_3COOH+H_2O\)

\(CH_3COOH+C_2H_5OH⇌CH_3COOC_3H_5+H_2O\)

\(CH_3COOC_3H_5+H_2O⇌C_2H_5OH+CH_3COOH\)

\(C_2H_5OH+Na\rightarrow C_2H_5ONa+2H_2\uparrow\)

\(C_{12}H_{22}O_{11}+H_2O\underrightarrow{t^o}C_6H_{12}O_6+C_6H_{12}O_6\\ C_6H_{12}O_6\underrightarrow{men.rượu}2C_2H_5OH+2CO_2\uparrow\\ C_2H_5OH+O_2\underrightarrow{men.giấm}CH_3COOH+H_2O\\ CH_3COOH+C_2H_5OH\xrightarrow[H_2SO_{4\left(đ\right)}]{t^o}CH_3COOC_2H_5+H_2O\\ CH_3COOC_2H_5+NaOH\rightarrow CH_3COONa+C_2H_5OH\)