Q. Van’t hoff factor of $Ca(NO_{3})_{2}$ is
A) Benzoic acid is an organic solute
B) Benzoic acid has higher molar mass than benzene
C) Benzoic acid gets associated in benzene
D) Benzoic acid gets dissociated in benzene
Explanation
(c)
Benzoic acid in benzene exists as a dimer. So, number of molecules decreases and hence, osmotic pressure decreases.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.