MetallurgyHardBloom L3
Question
Formation of metallic copper from the sulphide ore in the commercial thermo-metallurgical process essentially involves which one of the following reactions:
Options
A.Cu2S + 
O2 → Cu2O + SO2 ; CuO + C → Cu + CO
O2 → Cu2O + SO2 ; CuO + C → Cu + COB.Cu2S + O2 → Cu2O + SO2 ; 2Cu2O + Cu2S → 6Cu + SO2
O2 → Cu2O + SO2 ; 2Cu2O + Cu2S → 6Cu + SO2C.Cu2S + 2O2 → CuSO4 ; CuSO4 + Cu2S → 3Cu + 2SO2
D.Cu2S + O2 → Cu2O + SO2 ; Cu2O + CO → 2Cu + CO2
O2 → Cu2O + SO2 ; Cu2O + CO → 2Cu + CO2Solution
Sol. Copper undergo self/auto reduction reaction :-
Cu2S + 
O2 → Cu2O + SO2 ↑
2 Cu2O + Cu2S → 6 Cu + SO2 ↑
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