Q. Colour of colloids depend on which of the factors?
A) Size
B) Mass
C) Charge
D) Nature
Explanation
(a)
Colour of colloidal solution depends upon particle size. As the particles size increases, the colour of gold sol changes from red to blue and finally to golden.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.