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JAMB Chemistry 2006 Question 1

Question 1

Metals and their Compounds

The raw material used for the smelting of iron ore in a furnace is

  1. A.CaSO4
  2. B.CaCO3
  3. C.CuSO4
  4. D.Zn(NO3)2
Show the answer and explanation

Answer: B (CaCO3)

Explanation

Limestone (CaCO3) is charged into the blast furnace with the ore and coke; it decomposes to CaO, which removes silica impurities as slag.