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In the extraction of copper the smelt fo...

In the extraction of copper the smelt formed in the blast furnace contians

A

`CuS+"little"FeS`

B

`Cu_(2)S+"little"FeO`

C

`Cu_(2)O+"little"FeS`

D

`Cu_(2)O+"little"FeO

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The correct Answer is:
A
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