MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Inorganic Chemistrys- Block 3.0Previous Year Questions

Solubility of the alkaline earth metal sulphates in water decreases in the sequence (AIPMT 2015)

A.Ca > Sr > Ba > Mg

B.Sr > Ca > Mg > Ba

C.Ba > Mg > Sr > Ca

D.Mg > Ca > Sr > Ba✓ Correct

Explanation

The solubility of any metal compound depends on the values of hydration energy and the lattice energy of the compound. Lesser the hydration energy, lesser will the solubility of the compound. We know the hydration energy decreases down the group for alkaline earth metal sulphates.

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