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Chemistry Question on General Principles and Processes of Isolation of Elements

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

copper (I) sulphide and iron (II) sulphide

Explanation

Solution

In the extraction of copper, 'matte' is formed which is a mixture of Cu2SCu _{2} S,
ie, copper (I) sulphide and FeSFeS, ie, iron (II) sulphide.