A) \[FeS+ZnS\]
B) \[C{{u}_{2}}S+FeS\]
C) \[CuS+Fe{{S}_{2}}\]
D) \[ZnS+CuS\]
Correct Answer: B
Solution :
Copper pyrites on smelting with coke and sand mainly contain a black mixture of \[C{{u}_{2}}S\] and a little \[FeS\]. (which escapes from oxidation) is obtained. This black mixture is known as matte.
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