S Block Elements Question 187
Sparingly soluble salt is a salt that dissolves only slightly in water.
[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. This is due to a decrease in hydration energy.