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Question:

In the extraction of copper from its sulphide ore, the metal is finally obtained by the reduction of cuprous oxide with:

copper(I) sulphide

carbon monoxide

sulphur dioxide

iron(II) sulphide

Solution:

The correct option is A copper(I) sulphide
In the extraction of copper from its sulphide ore, the metal is finally obtained by the reduction of cuprous oxide with copper(I) sulphide.
2Cu₂S + 3O₂ → 2Cu₂O + 2SO₂
2Cu₂O + Cu₂S → 6Cu + SO₂