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JAMB Chemistry 1995 Question 42

Question 42

Hydrocarbons

CHCl3 + Cl2 → HCl + CCl4. The reaction above is an example of

  1. A.an addition reaction
  2. B.a substitution reaction
  3. C.a chlorination reaction
  4. D.a condensation reaction
Show the answer and explanation

Answer: B (a substitution reaction)

Explanation

A chlorine atom takes the place of the last hydrogen atom in CHCl3. Replacing one atom by another is substitution.