Q. Which of the following mixture does not show positive deviation from the Raoult’s law?
A) Benzene + acetone
B) Acetone + ethanol
C) Acetone + chloroform
D) Water + ethanol
Explanation
(c)
The solution of acetone and chloroform shows negative deviation from Raoult’s law because acetone and chloroform make the hydrogen bond.
[image:2_image3.emf]
So
$\bigtriangleup H_{mix}\ \ and\ \ \bigtriangleup V_{mix}\ both\ are\ negative.$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.