Q. Which one of the statements given below concerning properties of solutions, describes a colligative effect?
A) Vapour pressure of pure water decreases by the addition of nitric acid
B) Boiling point of pure water decreases by the addition of ethanol
C) Boiling point of pure benzene increases by the addition of toluene
D) Vapour pressure of pure benzene decreases by the addition of naphthalene
Explanation
(a)
Due to addition of nitric acid in water, the vapour pressure of pure water decreases
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.