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JAMB Chemistry 1983 Question 4

Question 4

Introduction to Organic Chemistry

Consecutive members of an alkane homologous series differ by

  1. A.CH
  2. B.CH2
  3. C.CH3
  4. D.CnHn
  5. E.CnH2n+2.
Show the answer and explanation

Answer: B (CH2)

Explanation

Each member of a homologous series has one more CH2 group than the one before, e.g. CH4, C2H6, C3H8.