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JEE Main 2016 Chemistry question

ChemistryThe s-Block ElementsJEE Main 2016

Not in JEE Main or NEET syllabus

The correct order of the solubility of alkaline-earth metal sulphates in water is:

Answer: (1)

Solution

Solubility is governed by the balance between hydration energy and lattice energy. The sulphate ion is large, so the lattice energy changes relatively little as the cation grows down the group; the hydration energy of the cation, however, falls sharply as the cation gets bigger. Hydration energy therefore loses the

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Question ID VK-115533