1.

How is pure copper obtained from its principle ore ? Write the chemical reactions occurring during the extraction.

Answer»

Solution :(i) `2CuFeS_(2)+O_(2) to Cu_(2)S+2FeS+O_(2)`
(ii) `Cu_(2)S+3O_(2) to 2Cu_(2)O+2SO_(2)`
(III) `Cu_(2)O+C to 2Cu+CO`
(IV) `2Cu_(2)O+Cu_(2)S to 6Cu+SO_(2)`


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