JAMB Chemistry 2009 Question 23

Question 23

Electrolysis

Which of the following metals is purified commercially by eletrolysis?

  1. A.Zn
  2. B.Fe
  3. C.Sn
  4. D.Cu
Show the answer and explanation

Answer: D (Cu)

Explanation

Impure copper is made the anode and pure copper deposits on the cathode during electrolytic refining.