Q. In which of the following the hydration energy is higher than the lattice energy?

A) MgSO₄
B) RaSO₄
C) SrSO₄
D) BaSO₄
Explanation

[Solution from source] For small Mg²⁺ the hydration energy is very large and exceeds the lattice energy with the large sulphate ion, so MgSO₄ is soluble. For Sr, Ba and Ra sulphates the lattice energy dominates and they are sparingly soluble. Answer (1).

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.

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