The ion which has the maximum value of hydration energy is

Options

A. `Li^(+)`
B. `Na^(+)`
C. `K^(+)`
D. `Cs^(+)`

Answer

1

Explanation

`Li^(+)` is the smallest ion in the gaseous state but is has the highest charge density amongst alkali metal ions.Hence in water it forms the largest hydration sphere which makes its effective size the largest.