A redox reaction is shown in the diagrams. Identify the reaction.

Options

A. `Zn_((s))+Cu_((aq))^(2+)rarrZn_((aq))^(2+)+Cu_((s))`
B. `Cu_((s))+2Ag_((aq))rarrCu_((aq))^(2+)+2Ag_((s))`
C. `2Ag_((s))+Cu_((aq))^(2+)rarr2Ag_((aq))^(+)+Cu_((s))`
D. `2Cu_((s))+Zn_((aq))^(2+)rarrCu_((aq))^(2+)+Zn_((s))`

Answer

A

Explanation

Zinc rod dipped in blue copper sulphate solution is oxidised to `Zn^(2+)` and `Cu^(2+)` are reduced to Cu and get deposited on zinc rod.