Đường Đua Danh Pháp – Ai Điền Nhanh Hơn

- CH3

(a)  

Answer explanation

The structure -CH3 represents a methyl group, which is a part of methyl acetate. However, the question does not provide enough context to confirm methyl acetate as the correct answer, hence the answer is 0.

HCOOCH3

(a)  

Answer explanation

HCOOCH3 is the chemical formula for methyl formate, which is an ester derived from formic acid and methanol. Therefore, the correct answer is 'Methyl formate'.

CH3COO-

(a)  

Answer explanation

The chemical formula CH3COO- represents the acetate ion, which is derived from acetic acid. Therefore, the correct answer is 'acetate'.

CH3COOCH3

(a)  

Answer explanation

CH3COOCH3 is the chemical formula for methyl acetate, an ester formed from acetic acid and methanol. Therefore, the correct answer is methyl acetate.

HCOOC2H5

(a)  

Answer explanation

HCOOC2H5 is the molecular formula for ethyl formate, which is an ester formed from formic acid and ethanol. Therefore, the correct answer is ethyl formate.

CH3COOC6H5

(a)  

Answer explanation

The compound CH3COOC6H5 is known as phenyl acetate, which is an ester formed from acetic acid and phenol. Therefore, the correct answer is phenyl acetate.

C2H5COO-

(a)  

Answer explanation

C2H5COO- is the chemical formula for the propionate ion, which is the conjugate base of propionic acid. Therefore, the correct answer is propionate.

-CH2C6H5

(a)  

Answer explanation

The structure -CH2C6H5 represents a benzyl group, which consists of a -CH2- group attached to a phenyl ring (C6H5). Therefore, the correct answer is benzyl.