MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Inorganic Chemistrys- Block 3.0Previous Year Questions
Which of the following alkaline earth metal sulphates is least soluble in water? (Haryana PET 2010)
A.BaSO₄✓ Correct
B.MgSO₄
C.SrSO₄
D.CaSO₄
Explanation
Solubility of alkali metal sulphates decreases down the group as the size of the cation of increases thereby decreasing the hydration energy of the compound. Therefore, the order of solubility is as follows. Therefore, barium sulphate is least soluble metal sulphate in water.
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