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In a galvanic cell, the salt bridge....

In a galvanic cell, the salt bridge.

A

Does not participate chemically in the cell reaction

B

Stops the diffusion of ions from one electrode to another

C

Is necessary for the occurrence of the cell reaction

D

Ensures mixing of the two electrolytic solutions

Text Solution

Verified by Experts

The correct Answer is:
A, B
Note: We feel option (C) is incorrect because in some type of concentration cells, salt bridge is not required. Which can be confirmed from NCERT (XII-Chemistry, Part-1) in Sub section 3.2 Galvanic Cell.
"The electrolytes of the two half-cells are connected internally through a salt bridge as shown in Fig. 3.1 Sometimes, both the electrodes dip in the same electrolyte solution and in such cases we do not require a salt bridge."
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