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Chemistry · PYQ NEET UG 2017
हिन्दीIonic mobility of which of the following alkali metal ions is lowest when aqueous solutions of their salts are put under an electric field?
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Correct answer · Option D
Li
Explanation
Lithium ion (\( \text{Li}^+ \)) has the highest charge density, resulting in maximum hydration in aqueous solution. Thus, its hydrated radius is largest, making its ionic mobility lowest.
