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Question: A redox reaction is shown in the diagrams. Identify the reaction. <img src="https://cdn.pureessence...

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

A

Zn(s)+Cu(aq)2+→Zn(aq)2++Cu(s)Zn_{(s)} + Cu_{(aq)}^{2 +} \rightarrow Zn_{(aq)}^{2 +} + Cu_{(s)}

B

Cu(s)+2Ag(aq)+→Cu(aq)2++2Ag(s)Cu_{(s)} + 2Ag_{(aq)}^{+} \rightarrow Cu_{(aq)}^{2 +} + 2Ag_{(s)}

C

2Ag(s)+Cu(aq)2+→2Ag(aq)++Cu(s)2Ag_{(s)} + Cu_{(aq)}^{2 +} \rightarrow 2Ag_{(aq)}^{+} + Cu_{(s)}

D

Cu(s)+Zn(aq)2+→Cu(aq)2++Zn(s)Cu_{(s)} + Zn_{(aq)}^{2 +} \rightarrow Cu_{(aq)}^{2 +} + Zn_{(s)}

Answer

Zn(s)+Cu(aq)2+→Zn(aq)2++Cu(s)Zn_{(s)} + Cu_{(aq)}^{2 +} \rightarrow Zn_{(aq)}^{2 +} + Cu_{(s)}

Explanation

Solution

: Zinc rod dipped in blue copper sulphate solution is oxidised to Zn2+Zn^{2 +}and Cu2+Cu^{2 +} are reduced to Cu and get deposited on zinc rod.