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

Options

A. `Rb^(+)gtK^(+)gtNa^(+)gtLi^(+)`
B. `Li^(+)gtNa^(+)gtK^(+)gtRb^(+)`
C. `Na^(+)gtK^(+)gtRb^(+)gtLi^(+)`
D. `K^(+)gtRb^(+)gtNa^(+)gtLi^(+)`.

Answer

A

Explanation

On the basis of explanation of ionic mobility extent of an ion given in Q. 24, the mobility of alkali metal ions in aqueous solution follows the order. `Rb^(+) gt K^(+) gt Na^(+) gt Li^(+)`.