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JAMB Chemistry 1986 Question 40

Question 40

Metals and their Compounds

How will a metal X, which reacts explosively with air and with dilute acids be best extracted from its ores?

  1. A.Electrolysis of the solution of its salts.
  2. B.Decomposition of its oxide
  3. C.Displacement from solution by an alkali metal
  4. D.Electrolysis of fused salt.
Show the answer and explanation

Answer: D (Electrolysis of fused salt.)

Explanation

Such a very reactive metal would react with water, so it can't be got from solution. It is extracted by electrolysing its molten (fused) salt.