Q. Van’t hoff factor of $Ca(NO_{3})_{2}$ is
A) One
B) Two
C) Three
D) four
Explanation
(c)
$Ca(NO_{3})_{2} \leftrightharpoons \ \ \ Ca^{2 +} + 2NO_{3}^{-}$
It furnishes 3 ions per formula unit.
So, its van’t Hoff factor is 3.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.