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In the extraction of copper fromo its su...

In the extraction of copper fromo its sulphide ore, the metal is formed by the reduction of `Cu_(2)O` with ___________

A

copper (I) sulphide `(Cu_(2)S)`

B

sulphur dioxide `(SO_(2))`

C

iron sulphide (FeS)

D

carbon monoxide (CO)

Text Solution

Verified by Experts

The correct Answer is:
A
In the extraction of copper from its sulphide ore, when ore is subjected to roasting, some of it is oxidised to `Cu_(2)O` which reacts with the remaining `Cu_(2)S` (sulphide ore) to give copper metal.
`2Cu_(2)S + 3O_(2) rarr 2Cu_(2)O + 2SO_(2)uarr`
`2Cu_(2)O + Cu_(2)S rarr 6Cu + SO_(2) uarr`
In this process `Cu_(2)S` behaves as reducing agent.
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