JEE Chemistry · Medium

Mole Concept and Stoichiometry: Empirical Formula MCQ

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Empirical FormulaMediumQuestion 600014

Question

A hydrocarbon contains 92.3% C and 7.7% H. Its empirical formula is:
  1. A
    CH
    Correct
  2. B
    CH₂
  3. C
    CH₃
  4. D
    CH₄

Correct answer

CH

Explanation

C: 92.3/12 = 7.69; H: 7.7/1 = 7.7. Ratio ≈ 1:1 → empirical formula CH. (This is acetylene C₂H₂ if M = 26.)