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

A.

\(CH\)

B.

\(CH_{2}\)

C.

\(CH_{3}\)

D.

\(CH_{4}\)

Correct answer is B

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

          C        :           H

\(\frac{85.7}{12.0}   :      \frac{14.3}{1.0}\)

\( 7.14     :    14.3\)

\(\frac{7.14}{7.14}     :     \frac{14.3}{7.14}\)

\(\approxeq   1  :   2\)

Therefore, the empirical formula is \(CH_{2}\).