When copper pyrites is roasted in excess of air, a mixture of \[CuO+Fe – McqOptions

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1.	When copper pyrites is roasted in excess of air, a mixture of \[CuO+FeO\] is formed. \[FeO\] is present as impurity. This can be removed as slag during reduction of \[FeO\]. The flux added to form slag is
A.	\[Si{{O}_{2}}\] which is an acidic flux
B.	Limestone, which is a basic flux
C.	\[Si{{O}_{2}}\] which is the basic flux
D.	CaO, which is a basic flux
Answer» B. Limestone, which is a basic flux

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