Q. When mercuric iodide is added to the aqueous solution of potassium iodide, the
A) Freezing point is raised
B) Freezing point is lowered
C) Freezing point does not change
D) Boiling point does not change
Explanation
(b)
$HgI_{2}$ although insoluble in water but shows complex formation with KI and therefore, freezing point decreases
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.