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Home  >>  JEEMAIN and NEET  >>  Chemistry  >>  s-Block Elements

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.
$Be^{++}$
Due to small in size.
Hence (c) is the correct answer.
answered Jan 27, 2014 by sreemathi.v
edited Mar 25 by sharmaaparna1
 
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