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Which of the following is not an example...

Which of the following is not an example of roasting ?

A

`2ZnS + 3O_(2) to 2ZnO+2SO_(2)`

B

`2PbS+3O_(2) to 2PbO+2SO_(2)`

C

`2Cu_(2)S + 3O_(2) to 2Cu_(2)O + 2SO_(2)`

D

`2Cu_(2)O + Cu_(2)S to 6Cu + SO_(2)`

Text Solution

Verified by Experts

The correct Answer is:
D
It is an example of auto-reduction in which unoxidised copper sulphide reduces copper oxide.
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