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An electrochemical cell an behave like a...

An electrochemical cell an behave like an electrolytic cell when

A

`E_(cell)=0`

B

`E_(cell)gtE_(ext)`

C

`E_(ext)gtE_(cell)`

D

`E_(cell)=E_(ext)`

Text Solution

Verified by Experts

The correct Answer is:
C
If an external opposite potential is applied on the galvanic cell, the reaction continues to take place till the opposing voltage reaches the value 1.1 V At this stage no current flow through the cell and if there is any further increase in the external potential then reaction starts fuctioning in opposite direction Hence, this works as an electrolytic cell.
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