Which one of the following alkali metals give | vedclass

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(A) Smaller the size of an ion,the more highly is it hydrated. Among the given alkali metals,$Li^+$ is the smallest in size.Also,it has the highest ch

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$Li$

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(A) Smaller the size of an ion,the more highly is it hydrated. Among the given alkali metals,$Li^+$ is the smallest in size.Also,it has the highest charge density and highest polarising power. Hence,it attracts water molecules more strongly than the other alkali metals.As a result,it forms hydrated salts such as $LiCl \cdot 2H_2O$. The other alkali metals are larger than $Li^+$ and have weaker charge densities. Hence,they usually do not form hydrated salts.

Which one of the following alkali metals gives hydrated salts?

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