1.

In the extraction of copper, the metal formed in the Bessemer converter is due to the reactionA. `2Cu_(2)O +Cu_(2)S rarr 6Cu +SO_(2)`B. `2Cu_(2)Orarr 4Cu +O_(2)`C. `2Cu_(2)S +3O_(2)rarr2Cu_(2)O + 2SO_(2)`D. `CuSrarr 2Cu +S`

Answer» Correct Answer - A
Sometimes the sulphide ore may be oxidised to sulphate which is then reduced to the free metal by the excess of the sulphide ore.
`underset("Copper pyrites")(2Cu_(2)) +3O_(2) rarr 2Cu_(2)O+2SO_(2)`
`2Cu_(2)O +Cu_(2)S rarr 6Cu +SO_(2)`


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