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JAMB Chemistry 2004 Question 25

Question 25

Electrolysis

In the electrolysis of brine, the anode is

  1. A.platinum
  2. B.copper
  3. C.zinc
  4. D.carbon
Show the answer and explanation

Answer: D (carbon)

Explanation

Chlorine attacks most metals, so an inert carbon (graphite) anode is used in the industrial electrolysis of brine.