S Block Elements Question 187

Question: Sparingly soluble salt is

[RPMT 1999]

Options:

A) $ KCl $

B) $ NaCl $

C) $ NH_4Cl $

D) $ BaSO_4 $

Show Answer

Answer:

Correct Answer: D

Solution:

$ BaSO_4 $ is sparingly soluble in water because the solubility of second group sulphates decreases with increasing atomic size. Because of hydration energy decreases.

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