Q. Which of the following is not a method of preparation of colloidal solution?
A) Electrical dispersion
B) Peptization
C) Coagulation
D) Mechanical dispersion
Explanation
(c)
Colloidal solution is prepared by electrical dispersion, peptization and mechanical dispersion. It is not prepared by coagulation because coagulation is the phenomenon of the precipitation of colloidal solution by the addition of the electrolyte.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.