A) \[S{{O}_{2}}\]
B) \[F{{e}_{2}}S{{O}_{3}}\]
C) \[C{{u}_{2}}O\]
D) CO
Correct Answer: C
Solution :
In the extraction of copper from its sulphide ore, metal is finally obtained by the oxidation of cuprous sulphide with\[C{{u}_{2}}O\] It is example of auto reduction\[C{{u}_{2}}O\] is reduced to copper metal.
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