• # question_answer The correct order of hydration enthalpies of alkali metal is : A) $Li>N{{a}^{+}}>{{K}^{+}}>R{{b}^{+}}>C{{s}^{+}}$ B) $N{{a}^{+}}>L{{i}^{+}}>{{k}^{+}}>R{{b}^{+}}>C{{s}^{+}}$ C) $L{{i}^{+}}>N{{a}^{+}}>{{K}^{+}}>C{{s}^{+}}>R{{b}^{+}}$ D) $N{{a}^{+}}>L{{i}^{+}}>{{K}^{+}}>C{{s}^{+}}>R{{b}^{+}}$

Solution :

$L{{i}^{\oplus }}$ having minimum radius so maximum hydration radii.

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