Question

What causes Brownian motion in colloids?

A. molecules of the dispersion medium colliding with dispersed phase particles
B. coagulation of particles of the dispersed phase
C. erratic flashes of light
D. There is no Brownian motion in colloids.

Answer 1

Hey there!

Your answer is option A.

"Molecules of the dispersion medium colliding with dispersed phase particles" is what causes Brownian motion in colloids.

Hope this helps you.
Have a great day!

Answer 2

The correct answer is option A.

Step-by-step explanation:

Brownian motion is a random motion of particles present in the fluid such as air or liquid.This motion of the particles is due to collision with fast moving molecules in a fluid.

In colloids , molecules of dispersed phase are in motion due to the fast motion of dispersion medium's particle which imparts motion to these particles of dispersed phase by means of collision.