I U CH CH3COOH B NG M T PH N NGXT TO  CH3COOH CH3CHO + 1/2O2 ,C...

Câu 57:

i u ch CH

3

COOH b ng m t ph n ng

xt t

o

  CH

3

COOH

CH

3

CHO + 1/2O

2

,

CH

3

COOCH

3

+ H

2

O 

H

CH

3

COOH + CH

3

OH

C

2

H

5

OH + O

2



men giam

,

 CH

3

COOH + H

2

O

áp án: C