MEDIUMMCQ SINGLEJEE Advanced ChemistryInorganic ChemistryMetallurgyPrevious Year Questions
In the extraction of copper from its sulphide ore, the metal is finally obtained by the reduction of cuprous oxide with? (AIPMT 2012)
A.Copper (1) sulphide (Cu2S)✓ Correct
B.sulphur dioxide (SO2)
C.iron sulphide (FeS)
D.carbon monoxide (CO).
Explanation
During the extraction of copper from copper matter i.e. sulphide ore of copper, sulphur is removed by formation of sulphur dioxide upon passing hot air. As a result, cuprous oxide is formed which is then reduced by copper sulphide to give copper. The reaction is - 2 2 2 2Cu O+Cu S 6Cu+SO -> Therefore, the correct answer is option (a) Copper (1) sulphide 2 (Cu S) .
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