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In which of the following salt bridge is...

In which of the following salt bridge is not needed ?

A

`Pb|PbSO_(4)(s)|H_(2)SO_(4)|PbO_(2)(s)|Pb`

B

`Cd|CdO(s)|KOH(aq)|NiO_(2)(s)|Ni`

C

`Fe(s)|FeO(s)|KOH(aq),Ni_(2)O_(3)(s)|Ni`

D

`Zn|ZnSO_(4)|CuSO_(4)|Cu`

Text Solution

Verified by Experts

The correct Answer is:
a,b,c
Salt bridge is used to eliminate liquid junction potential arised due to different speed of ions present in cathodic and anodic compartments.
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