Digestion and AbsorptionHard

Question

The ease of adsorption of the hydrated alkali metal ions on an ion-exchange resins follows the order

Options

A.Li+ < K+ < Na+ < Rb+
B.Rb+ < K+ < Na+ < Li+
C.K+ < Na+ < Rb+ < Li+
D.Na+ < Li+ < K+ < Rb+

Solution

Ease of adsorption of the hydrated alkali metal ions on an ion-exchange resine decreases as the size of alkali metal ions increases.
Since, the order of size of alkali metals ions
           Li+ < Na+ < K+ < Rb+

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