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Which of the following will have highest hydration energy?

$\begin{array}{1 1}(a)\;Li^+&(b)\;Na^+\\(c)\;Be^{++}&(d)\;Mg^{++}\end{array}$

1 Answer

Hydration energy depends on charge of ion and ionic radius. Higher the charge, greater the hydration energy. On the other hand, smaller the size, greater the hydration energy.
Due to small in size.
Hence (c) is the correct answer.
answered Jan 27, 2014 by sreemathi.v
edited Mar 25 by sharmaaparna1