A) \[S{{O}_{4}}^{2-}\] ion mainly contributes towards hydration energy.
B) Sizes of \[M{{g}^{2+}}\] and \[S{{O}_{4}}^{2-}\] are similar.
C) Hydration energy of \[MgS{{O}_{4}}\] is higher in comparison to its lattice energy.
D) Ionic potential (charge/radius ratio) of \[M{{g}^{2+}}\] is very low.
Correct Answer: C
Solution :
[c] \[MgS{{O}_{4}}\] is the only alkaline earth metal sulphate which is soluble in water and for solubility hydration energy should be greater than lattice energy.
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