A standard solution of `KNO_(3)` is used to make salt bridge, because

Options

A. Velocity of `K^(+)` is more than `NO_(3)^(-)`
B. velocity of `K^(+)` is less than `NO_(3)^(-)`
C. Velocity of `K^(+)` is equal to `NO_(3)^(-)`
D. `KNO^(3)` is solube in water

Answer

C

Explanation

Velocity of `K^+` is equal to `NO_3^-`