The hydration energy of Mg^{2+} is larger tha | vedclass

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(B) Hydration energy is directly proportional to the charge of the ion and inversely proportional to its ionic radius. For ions with different charges

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$Na^{+}$

Vedclass · Answer

(B) Hydration energy is directly proportional to the charge of the ion and inversely proportional to its ionic radius. For ions with different charges,the charge density is the primary factor. $Mg^{2+}$ has a charge of $+2$ and $Na^{+}$ has a charge of $+1$. Since the charge of $Mg^{2+}$ is higher than that of $Na^{+}$,$Mg^{2+}$ has a higher hydration energy than $Na^{+}$.

The hydration energy of $Mg^{2+}$ is larger than that of

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