Question

In the extraction of copper, the copper matte is a mixture of:

• A. copper (II) sulphide and iron (II) sulphide
• B. copper (II) sulphide and iron (III) sulphide
• C. copper (I) sulphide and iron (II) sulphide
• D. copper (I) sulphide and iron (III) sulphide

Answer 1

The correct option is A copper (II) sulphide and iron (II) sulphide

• The chemical formula of copper matte is $C{u}_{2}S+FeS$. It is a combination of copper sulphide and iron sulphide.
• It is a phase in which extracted metal is converted into crude metal which is a final product.
• $80-70\%$ of copper matte is used $80-95\%$. $5-17\%$ metallic copper, $Fe-Co$ alloy etc are used.