Question

The correct order of the mobility of alkali metal ions in aqueous solution is

• A.
• B.
• C.
• D.

Answer 1

The correct option is C

Smaller the size of the ion, more is the hydration. Therefore, mobility becomes less for smaller ion. Thus, the order of mobility of ions in aqueous solution is
$R{b}^{+}>K^{+}>N{a}^{+}>L{i}^{+}$