A) Reduction by carbon
B) Electrolysis
C) Self-reduction
D) Cyanide process
Correct Answer: C
Solution :
Self reduction:- Reduction of oxide ore of a metal by its own sulphide \[2C{{u}_{2}}O+C{{u}_{2}}S\to 6Cu+S{{O}_{2}}\]You need to login to perform this action.
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