NEET 2006 Chemistry question

Not in JEE Main or NEET syllabus

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

(1)
(2)
(3)
(4)Correct

Answer: (4)

Solution

In aqueous solution the mobility of an ion depends on its hydrated size, not its bare size. A smaller ion has a higher charge density and is more heavily hydrated, giving a larger hydrated radius and lower mobility. Hydration decreases down the group ($Li^+ >

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Question ID VK-089625