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Question

CuO is reacted with carbon in the absence of air to form copper. Which process is this?


A

Roasting

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B

Calcination

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C

Reduction

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D

Both B and C

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Solution

The correct option is D

Both B and C


Copper oxide can be reduced to copper metal using carbon
2CuO+C2Cu+CO2
This process is commonly known as calcination and since it involves the loss of oxygen by CuO, hence this reaction also involves the reduction of CuO.


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