The sBlock Elements - Result Question 32

####38. Which one is the correct statement with reference to solubility of MgSO4 in water?

[1996]

(a) SO42 ion mainly contributes towards hydration energy

(b) Sizes of Mg2+ and SO42 are similar

(c) Hydration energy of MgSO4 is higher in comparison to its lattice energy

(d) Ionic potential (charge/radius ratio) of Mg2+ is very low

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Solution:

  1. (c) MgSO4 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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