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Q. In the extraction of copper, the copper matte is a mixture of

J & K CETJ & K CET 2010General Principles and Processes of Isolation of Elements

Solution:

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