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JAMB Chemistry 2014 Question 35

Question 35

Metals and their Compounds

In the extraction of sodium from fused sodium chloride, the anode is made of platinum because

  1. A.sodium is formed at the anode.
  2. B.chlorine is formed at the anode.
  3. C.sodium does not react with platinum.
  4. D.chlorine does not react with platinum.
Show the answer and explanation

Answer: D (chlorine does not react with platinum.)

Explanation

Chlorine is released at the anode and attacks most metals, so the anode is made of an inert material that chlorine does not react with.