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Question

The standard reduction potential for the half-cell reaction, will be:
V;

V

A

V

B

V

C

V

D

V

Medium

Solution

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Correct option is
B

V

A galvanic cell or simple battery is made of two electrodes. Each of the electrodes of a galvanic cell is known as a half cell. In a battery, the two half cells form an oxidizing-reducing couple. When two half cells are connected via an electric conductor and salt bridge, an electrochemical reaction is started.

The given reaction is,

On reversing the above reaction,Β 

Also given,

As we know the relation,



So we get,Β 


Hence, the correct option is

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