1.

Hydration energy of the given ions follows the order.A. `Li^(+) gt K^(+) gt Na^(+) gt Rb^(+) gt Cs^(+)`B. `Cs^(+) gt Rb^(+) gt K^(+) gt Rb^(+) gt Cs^(+)`C. `Na^(+) gt K^(+) gt Rb^(+) gt Cs^(+) gt Li^(+)`D. ` Li^(+) gt Na^(+) gt K^(+) gt Rb^(+) gt Cs^(+)`

Answer» Correct Answer - 4
`Li^(+) gt Na^(+) gt K^(+) gt Rb^(+) gt Cs^(+)`=Hydration energy order
`to` Size of cation increases
`to ` hydration energy decreases


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