Lithium salts are mostly hydrated like $L i C l .2 H_{2} O$ due to:

maximum ionisation enthalpy

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maximum degree of hydration of

L i^{+}

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maximum hydroscopic nature

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maximum chemical reactivity.

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Solution

The correct option is B maximum degree of hydration of $L i^{+}$
${L i}^{+}$ ion being small in size is surrounded by large no. of water molecules on account of which it has very hydration energy. Hence, it is heavily hydrated and have high degree of hydration.

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Similar questions

C s^{+} > R b^{+} > K^{+} > N a^{+} > L i^{+}

Why are lithium salts commonly hydrated and those of the other alkali metal ions usually anhydrous?

L i F

Hydration energy ${Δ H}_{h y d r a} . (k J m o l^{- 1})$	Lattice energy $Δ H_{u} (k J m o l^{- 1})$
$L i^{+}$ -499	LiCl-840
$N a^{+}$ -390	NaCl-776
$K^{+}$ -305	KCl-703
$C l^{-}$ -382

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