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

In a galvanic cell, the salt bridge.

A

Does not participiate chemically in the cell reation

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 solution

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The correct Answer is:
A
Salt bridge is introduced to keep the solutions of two electrodes separate, such that the ions in electrode do not mix freely with each other. But it cannot stop the process of diffusion.
It oes not participiate in the chemical reaction. However, it is not necesary for occurrence of cell reaction, as we know that designs like lead accumulator, there was no salt bridge, but still reaction takes place.
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