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

Options

A. The velocity of `K^(o+)` is greater than that of `NO_(3)^(o+)`.
B. The velocity of `NO_(3)^(o+)` is greater than that of `K^(o+)`
C. The volocities of `K^(o+)` and `NO_(3)^(o+)`.same
D. `KNO_(3)` is highly solubel in water.

Answer

c

Explanation

A saturated solution of `KNO_(3)` is used to make salt`-` bride because the velocities of both `K^(o+)` and `NO_(3)^(c-)` are nearly the same. This keeps a uniform distribution of charges on both sides.