Question

Ionic mobility of Li${}^{+}$ is greater than that of Na${}^{+}$.

• A. True
• B. False

Answer 1

The correct option is B False

Smaller the size of the cation, larger the hydration and hence smaller the ionic mobility. $L{i}^{+}$ is smaller than $N{a}^{+}$ hence, it is more hydrated than $N{a}^{+}$ hence, its ionic mobility is less than that of $N{a}^{+}$.

So Ionic mobility of $L{i}^{+}$ is lesser than that of $N{a}^{+}$.