Question

The zig-zag random motion of colloidal particles in a dispersion medium is called:

• A. brownian motion
• B. tyndall effect
• C. electrophoresis
• D. electro-osmosis

Answer 1

The correct option is A brownian motion

Brownian motion: It is the zig-zag motion of colloidal particles in a dispersion medium.

Tyndall effect: It is the phenomenon of scattering of light due to colloidal particles.

Electrophoresis: It is a technique used in laboratories in order to separate macromolecules based on size.

Electro-osmosis: It is the motion of liquid induced by an applied potential across a porous material, capillary tube, membrane, micro-channel or any other fluid conduit.

Hence, option $A$ is correct.