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General Organic Chemistry: Homologous series MCQ

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Homologous seriesEasyQuestion 730004

Question

Successive members of a homologous series differ by:
  1. A
    −CH₂−
    Correct
  2. B
    −CH₃
  3. C
    −C₂H₅
  4. D
    −OH

Correct answer

−CH₂−

Explanation

A homologous series consists of compounds with same functional group differing by −CH₂− (methylene) units. Molecular formula increases by CH₂ (14 mass units) between successive members.

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