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JAMB Chemistry 1995 Question 25

Question 25

Electrolysis

2Cl−(aq) → Cl2(g) + 2e−. The above half-cell reaction occurring at the anode during the electrolysis of dilute ZnCl2 solution is

  1. A.ionization
  2. B.oxidation
  3. C.reduction
  4. D.recombination
Show the answer and explanation

Answer: B (oxidation)

Explanation

The chloride ions lose electrons. Loss of electrons is oxidation, which always happens at the anode.