The ion having the highest hydration enthalpy | vedclass

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Question

(A) Hydration enthalpy is inversely proportional to the ionic size: $	ext{Hydration Enthalpy} \propto \frac{1}{	ext{size}}$.As we move down the grou

Vedclass · Accepted Answer

$Be^{2+}$

Vedclass · Answer

(A) Hydration enthalpy is inversely proportional to the ionic size: $	ext{Hydration Enthalpy} \propto \frac{1}{	ext{size}}$.As we move down the group,the ionic size increases,which causes the hydration enthalpy to decrease.The order of hydration enthalpy for alkaline earth metal ions is: $Be^{2+} > Mg^{2+} > Ca^{2+} > Sr^{2+} > Ba^{2+}$.Therefore,$Be^{2+}$ has the highest hydration enthalpy.

The ion having the highest hydration enthalpy among the given alkaline earth metal ions is:

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