MetallurgyHardBloom L3

Question

Which of the following reaction(s) occur during calcination?

Options

A.CaCO₃ → CaO + CO₂

B.4FeS₂ + 11O₂ → 2Fe₂O₃ + 8SO₂

C.2Al(OH)₃ → Al2O₃ + 3H₂O

D.CuS + CuSO₄ → 2Cu + 2SO₂

Solution

Sol. Calcination used for carbonate & hydroxide ores.

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