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JAMB Chemistry 1985 Question 25

Question 25

Metals and their Compounds

Which of the following metals will displace iron from a solution of iron (II) tetraoxosulphate (IV)?

  1. A.Copper
  2. B.Mercury
  3. C.Silver
  4. D.Zinc
  5. E.Gold
Show the answer and explanation

Answer: D (Zinc)

Explanation

A metal displaces another from its salt only if it is higher in the electrochemical series. Zinc is above iron; copper, mercury, silver and gold are below it.