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JAMB Chemistry 1993 Question 45

Question 45

Hydrocarbons

Catalytic hydrogenation of benzene produces

  1. A.an aromatic hydrocarbon
  2. B.margarine
  3. C.cyclohexane
  4. D.D.D.T.
Show the answer and explanation

Answer: C (cyclohexane)

Explanation

Adding hydrogen to benzene over a nickel catalyst saturates the ring: C6H6 + 3H2 → C6H12 (cyclohexane).