Published by:
CGP EDU Academic Team
Published on: August 13, 2026
Ionic mobility of which of the following alkali metal ions is lowest when aqueous solution of their salts are put under an electric field?
A
B
Rb
C
Li
D
Na
Text Solution
Verified by ExpertsThe correct answer is:
C
The hydration enthalpy of alkali metal ions decreases with increase in ionic sizes 
Hence, lithium having maximum degree of hydration will be least mobile. The order of ionic mobility is 
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