The hydration entahphy of `Mg^(2+)` ion is higer than that of

Options

A. `Al^(3+)`
B. `Be^(2+)`
C. `Na^(o+)`
D. `K^(o+)`

Answer

C, D

Explanation

`Mg^(2+)`ion has greater charge/radius ratio as compared to `Na^(o+)` and `K^(o+)` and hence has higher hydration enthalpy.