Question

The empirical formula of a compound is CH2. The molecular formula of this compound could be which of the following?
a) CH4 b) C2H2 c) C2H4 d) C2H6

Answer 1

It can be any multiple of CH2; i.e., (CH2)2; (CH2)3; (CH2)4; etc.

Answer 2

C2h2