Equilibrium Question 241
Question: The compound insoluble in acetic acid is [IIT 1986]
Options:
A) Calcium oxide
B) Calcium carbonate
C) Calcium oxalate
D) Calcium hydroxide
Show Answer
Answer:
Correct Answer: C
Solution:
Calcium oxalate is insoluble in acetic acid, whereas calcium oxide, calcium carbonate and calcium hydroxide are soluble in acetic acid.
The insolubility of calcium oxalate in acetic acid is due to its high lattice energy and low solvation energy.
Also, the oxalic acid salts are not decomposed by acetic acid as oxalic acid is a stronger acid than acetic acid.
