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Saturated solution of KNO3 with agar-aga...

Saturated solution of `KNO_3` with agar-agar is used to make 'salt bridge' because:

A

Velocity of `K^(+) and NO_(3)^(-)` ions are different

B

Ionic mobility of `NO_(3)^(-)` is greater than that of `K^(+)`

C

Ionic mobility of both `K^(+) and NO_(3)^(-)` are nearly the same

D

Size of `K^(+)` is greater than that of `NO_(3)^(-)`

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The correct Answer is:
C
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