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

4 C u_{2} O + F e S \to 8 C u + F e S O_{4}

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C u_{2} S + 2 C u_{2} O \to 6 C u + S O_{2}

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2 C u_{2} O + F e S \to 4 C u + F e + S O_{2}

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C u_{2} S + 2 F e O \to 2 C u F e C O + S O_{2}

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Solution

The correct option is B $C u_{2} S + 2 C u_{2} O \to 6 C u + S O_{2}$
In Bessemer converter copper sulphate is partially oxidised to cuprous oxide which further reacts with remaining copper sulphide to form copper and sulpher dixide.
$C u_{2} S + 2 C u_{2} O \to 6 C u + S O_{2}$

Reactions Involved in the Extraction of Copper
$2 F e S + 3 O_{2} \to 2 F e O + 2 S O_{2} F e O + S i O_{2} \to F e S i O_{3} (S l a g) 2 C u_{2} S + 3 O_{2} \to 2 C u_{2} O + 2 S O_{2} 2 C u_{2} O + C u_{2} S \to 6 C u + S O_{2}$

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Copper is extracted from Copper pyrites by heating in a Bessemer converted. The method is based on the principle that

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