Question

The reason why saturated solution of $KN{O}_3$ is used to make ‘salt-bridge’

• A. Velocity of $K^{+}$ is greater than that of $N{O}_3^{-}$
• B. Velocity of $N{O}_3^{-}$ is greater than that of $K^{+}$
• C. Velocities of both $K^{+}$ and $N{O}_3^{-}$ are nearly the same
• D. $KN{O}_3$ is highly soluble in water

Answer 1

Answer: (C)

Velocities of both $K^{+}$ and $N{O}_3^{-}$ are nearly the same in $KN{O}_3$ so it is used to make salt-bridge.