Question

How is copper extracted from its sulphide ore? Explain the various steps supported by chemical equations. Draw labelled diagram for the electrolytic refining of copper.

Answer 1

Answer

Sulphide ore of copper is heated in air.

2Cu2S + 3O2 → 2Cu2O + 2SO2

2Cu2O + Cu2S → 6Cu + SO2

Labelled diagram of electrolytic refining of copper

Answer 2

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Here is your answer

Copper from Cu2S can be obtained from its ore simply by heating in air. (I) First step is the heating of sulphide ore of copper in the presence of an excess of air. This process is known as roasting. (II) The second step is the self-reduction of copper