1.

In self -reduction used in extraction of copper, the reducing agent isA. SB. `O_(2-)`C. `S_(2)`D. `SO_(2)`

Answer» Correct Answer - c
`2Cu_(2)S + 3O_(2) rarr 2Cu_(2)O + 2SO_(2)`
`Cu_(2) + 2Cu_(2)O rarr 6Cu + SO_(2)`


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