Question

The final step for the extraction of copper from copper pyrite in Bessemer converter involves the reaction-

• A. $4\text{C}\text{u}_{2}\text{O}+\text{F}\text{e}\text{S} \rightarrow 8\text{C}\text{u}+\text{F}\text{e}\text{S}\text{O}_{4}$
• B. $\text{C}\text{u}_{2}\text{S}+2\text{C}\text{u}_{2}\text{O} \rightarrow 6\text{C}\text{u}+\text{S}\text{O}_{2}$
• C. $2 \text{Cu}_{2} \text{O} + \text{FeS} \rightarrow 4 \text{Cu} + \text{Fe} + \text{SO}_{2}$
• D. $\text{C}\text{u}_{2}\text{S}+2\text{F}\text{e}\text{O} \rightarrow 2\text{C}\text{u}+2\text{F}\text{e}\text{C}\text{O}+\text{S}\text{O}_{2}$

Answer 1

Answer: (B)

In Bessemer converter copper sulphide is partially oxidised to cuprous oxide which further reacts with remaining copper sulphide to form copper and sulphur dioxide. $\text{C}\text{u}_{2}\text{S}+2\text{C}\text{u}_{2}\text{O} \rightarrow 6\text{C}\text{u}+\text{S}\text{O}_{2}$