1.

Saturated solution of KNO_(3) is used to make 'salt-bridge' because

Answer»

Velocity of `K^(+)` is greater than that of `NO_(3)^(-)`
Velocity of `NO_(3)^(-)` is greater than that of `K^(+)`
Velocities of both `K^(+) and NO_(3)^(-)` are nearly the same
`KNO_(3)` is highly soluble in water

Solution :The salt used to MAKE 'salt-bridge' must be such that the ionic mobility of CATION and anion are of comparable ORDER so that they can keep the anode and cathode half cells neutral at all TIMES.


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