A hydrocarbon contained 14.3% hydrogen. The empirical formula for the hydrocarbon is [H= 1.0, C= 12.0]

A. CH
B. CH2
C. CH3
D. CH4

Correct Answer: Option B

Explanation

The percentage of Carbon in the compound is (100 – 14.3)% = 85.7%

C : H

85.7/12.0 : 14.3/1.0

7.14 :  14.3

7.14/7.14 : 14.3/7.14

≊1:2
Therefore, the empirical formula is CH2.