1.

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

A. Copper (I) sulphide \[(C{{u}_{2}}S)\]
B. Sulphur dioxide \[\left( S{{O}_{2}} \right)\]
C. Iron sulphide \[\left( FeS \right)\]
D. Carbon monoxide (CO)
Answer» B. Sulphur dioxide \[\left( S{{O}_{2}} \right)\]


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