Saturated solution of KNO3 is used to make salt bridge because

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Velocity of K+ is greater than that of NO3−

Velocity of NO3− is greater than that of K+

Velocities of both K+ and NO3− are nearly the same

KNO3 is highly soluble in water

answer is C.

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Detailed Solution

Velocity almost same, so conductivity in cathodic and anodic compartments is not affected.

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