Medium
Formation of metallic copper from the sulphide ore in the commercial thermo-metallurgical process essentially involves which one of the following reactions as the major reaction?
- A$CuS + \frac{3}{2}O_2 \to Cu_2O + SO_2$; $Cu_2O + C \to 2Cu + CO$
- B$Cu_2S + \frac{3}{2}O_2 \to Cu_2O + SO_2$; $2Cu_2O + Cu_2S \to 6Cu + SO_2$
- C$Cu_2S + 2O_2 \to CuSO_4$; $CuSO_4 + Cu_2S \to 3Cu + 2SO_2$
- D$Cu_2S + \frac{3}{2}O_2 \to Cu_2O + SO_2$; $Cu_2O + CO \to 2Cu + CO_2$
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