In the extraction of copper from its sulphide ore, the metal is finally obtained by the reduction of cuprous oxide (Cu2O) with ______.

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In the extraction of copper from its sulphide ore, the metal is finally obtained by the reduction of cuprous oxide (Cu2O) with cuprous sulphide (Cu2S). Explanation: In the Bessemerisation step of copper extraction, cuprous oxide (Cu2O) reacts with cuprous sulphide (Cu2S) in a self-reduction reaction to form metallic copper is: \ce{2Cu2O + Cu2S -> 6Cu + SO2} This is a key reaction in the extraction of copper from copper pyrites (CuFeS2).

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