Correct Answer: Option B

Explanation

Relative No of Moles for Carbon = 79.2% ÷ 12 = 6.6

Relative No of Moles for Hydrogen = 20.8% ÷ 1 = 20.8

Ratio of Moles = Carbon 6.6 ÷ 6.6 = 1                 Hydrogen = 20.8 ÷ 6.6 ~ 3

EMPIRICAL FORMULA IS      CH\(_3\)

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