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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