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JEE Main Chemistry question

ChemistryThe s-Block ElementsJEE Main

Not in JEE Main or NEET syllabus

How many of the following will have more ionic mobility than ? Li^+, K^+, Al^{3+}, Rb^+, Cs^+

Answer: 2

Solution

A smaller ion has a higher charge density, causing greater hydration (a larger effective hydrated-ion size), which in turn lowers its ionic mobility. and are smaller/more highly

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Question ID VK-133884