Question

The Brownian motion is due to

• A. temperature fluctuation within the liquid phase
• B. attraction and repulsion between charges on the colloidal particles
• C. impact of molecules of the dispersion medium on the colloidal particles
• D. convective currents

Answer 1

Answer: (C)

Molecules of dispersion medium collide with colloidal particles and cause them to move in a zig-zag way