Published by:
CGP EDU Academic Team
Published on: August 14, 2026
The correct order of the mobility of the alkali metal ions in aqueous solution is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
The alkali metal ions exist as hydrated ions 
in the aqueous
solution. The degree of hydration, however, decreases with the ionic size as we move from 
to 
. In other words, 
ion is most highly hydrated. e . g . 
. Since the mobility of ion is inversely proportional to the size of their hydrated ions, therefore, amongst the alkali metal ions, lithium has the lowest ionic mobility. 
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