Ethyl acetate multiple choice

[Title] Ethyl acetate (CH COOC H ) is a substance with a special fragrance. Of the following statements, the correct one is ()

• A. Maximum mass fraction of element H in ethyl acetate
• B. The mass ratio of carbon, hydrogen and oxygen in ethyl acetate is 2:4:1
• C. Ethyl acetate is an oxide
• D. Ethyl acetate is composed of three elements: carbon, hydrogen and oxygen

[Answer] D

[Analysis]

The mass ratio of carbon, hydrogen and oxygen in A and ethyl acetate is: (12 × 4): (1 × 8): (16 × 2) = 48:8:32 = 6:1:4, then the mass fraction of carbon is the largest, so A is wrong;

The mass ratio of carbon, hydrogen and oxygen in B and ethyl acetate is (12 × 4): (1 × 8): (16 × 2) = 6:1:4, so B is wrong;

C and ethyl acetate are composed of three elements: carbon, hydrogen and oxygen, and do not belong to oxides, so C is wrong;

D and ethyl acetate are composed of three elements: carbon, hydrogen, and oxygen, so D is correct.

So choose: D.