JEE Main Chemistry question

Not in JEE Main or NEET syllabus

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

(A)
(B)
(C)Correct
(D)

Answer: (C)

Solution

Ease of adsorption on a cation-exchange resin increases as the hydrated radius of the ion decreases (a less heavily hydrated ion binds more effectively to the resin's exchange sites). Since hydrated radius decreases down the group ( most hydrated/largest, least

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Question ID VK-137883