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Question 600010
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Mole Concept and Stoichiometry: Molecular Formula MCQ

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Molecular FormulaEasyQuestion 600010

Question

If the empirical formula of a compound is CH₂ and its molar mass is 56 g/mol, the molecular formula is:
  1. A
    CH₂
  2. B
    C₂H₄
  3. C
    C₄H₈
    Correct
  4. D
    C₃H₆

Correct answer

C₄H₈

Explanation

Empirical formula mass = 12+2 = 14. n = 56/14 = 4. Molecular formula = (CH₂)₄ = C₄H₈.

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