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An electrochemical cell stops working af...

An electrochemical cell stops working after some time because

A

Electrode potential of both the electrodes become zero

B

Electrode potential of both the electrodes become equal.

C

One of the electrdoe is eaten away

D

The reaction starts proceeding in opposite direction.

Text Solution

Verified by Experts

The correct Answer is:
B
EmF=`E_(c)-E_(a)`
`Emf="zero" [because E_(c)=E_(a)]`
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