Question

The correct order of hydration energy is:

• A. $B{e}^{2+}<L{i}^{+}$
• B. $N{a}^{+}>M{g}^{+2}$
• C. $N{a}^{+}<M{g}^{+2}$
• D. $A{l}^{+3}<N{a}^{+}$

Answer 1

The correct option is C $N{a}^{+}<M{g}^{+2}$

Hydration energy depends on charge of ion and ionic radius$.$ Higher the charge$,$ greater the hydration energy$.$
Hence$,$ Option $\left(C\right)$ is correct$.$