In the extraction of copper from its sul...

In the extraction of copper from its sulphide ore, the metal is formed by the reduction of `Cu_2O` with

copper (I) sulphide `(Cu_2S)`

sulphur dioxide `(SO_2)`

iron sulphide (FeS)

carbon monoxide (CO)

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The correct Answer is:

It is can example of auto reduction :
`Cu_2S+2Cu_2O rarr 6Cu +SO_2`

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