Q. Which is not correct?

A) Every solid substance can be brought in colloidal state
B) Every solid substance can be made to behave like a lyophobic colloid
C) Addition of electrolytes coagulates the sol
D) Colloidal particles carry charges
Explanation

(b)
A solid may be lyophilic or lyophobic.

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.