Formation of metallic copper from the sulphide ore in the commercial metallurgical…

Chemistry · JEE Advanced · NTA Exams — General Principles and Processes of Isolation of Elements

1. \(\mathrm{Cu}_{2} \mathrm{~S}+\frac{3}{2} \mathrm{O}_{2} \rightarrow \mathrm{Cu}_{2} \mathrm{O}+\mathrm{SO}_{2} ; \quad \mathrm{Cu}_{2} \mathrm{O}+\mathrm{C} \rightarrow 2 \mathrm{Cu}+\mathrm{CO}\)
2. \(\mathrm{Cu}_{2} \mathrm{~S}+\frac{3}{2} \mathrm{O}_{2} \rightarrow \mathrm{Cu}_{2} \mathrm{O}+\mathrm{SO}_{2} ; 2 \mathrm{Cu}_{2} \mathrm{O}+\mathrm{Cu}_{2} \mathrm{~S} \rightarrow 6 \mathrm{Cu}+\mathrm{SO}_{2}\)
3. \(\mathrm{Cu}_{2} \mathrm{~S}+2 \mathrm{O}_{2} \rightarrow \mathrm{CuSO}_{4} ; \quad \mathrm{CuSO}_{4}+\mathrm{Cu}_{2} \mathrm{~S} \rightarrow 3 \mathrm{Cu}+2 \mathrm{SO}_{2}\)
4. \(\mathrm{Cu}_{2} \mathrm{~S}+\frac{3}{2} \mathrm{O}_{2} \rightarrow \mathrm{Cu}_{2} \mathrm{O}+\mathrm{SO}_{2} ; \quad \mathrm{Cu}_{2} \mathrm{O}+\mathrm{CO} \rightarrow 2 \mathrm{Cu}+\mathrm{CO}_{2}\)

Answer

(B) Cu _ 2 ~S + 3 2 O _ 2 Cu _ 2 O + SO _ 2 ; 2 Cu _ 2 O + Cu _ 2 ~S 6 Cu + SO _ 2

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