Justify that the reaction `2Cu_(2)O_(s)+Cu_(2)S(s)rarr6Cu(s)+SO_(2)(g)` a redox reaction. Identify the species oxidised`//`reduced. Which acts as an oxidanat and which acts as a reductant?A. If both assertion and reason are true and reason is the correct explanation of assertion.B. If both assertion and reason are true but reason is not the correct explanation of assertion.C. If assertion is true but reason is false.D. If both assertion and reason are false.

Justify that the reaction `2Cu_(2)O_(s)+Cu_(2)S(s)rarr6Cu(s)+SO_(2)(g)

1.	Justify that the reaction `2Cu_(2)O_(s)+Cu_(2)S(s)rarr6Cu(s)+SO_(2)(g)` a redox reaction. Identify the species oxidised`//`reduced. Which acts as an oxidanat and which acts as a reductant?A. If both assertion and reason are true and reason is the correct explanation of assertion.B. If both assertion and reason are true but reason is not the correct explanation of assertion.C. If assertion is true but reason is false.D. If both assertion and reason are false.
Answer» Correct Answer - D The oxidation states are as : `2overset(+1)(Cu_(2))overset(-2)O_((s))+ overset(+1)(Cu_(2))overset(-2)S_((2))rarr6overset(0)(Cu)_((s))+overset(+4)(S)overset(-2)O_(2(g))` Copper is reduced from +1 state to zero. Sulphur is oxidised from -2 state to +4. `Cu_(2)O` helps sulphur in `Cu_(2)S` to increase its oxidation number, hence Cu(I) is an oxidant and sulphur of `Cu_(2)S` helps copper both in `Cu_(2)S` and `Cu_(2)O` to decrease its oxidation number, hence S of `Cu_(2)S` is a reductant. And the reaction is redox reaction.

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