Question

Which of the best describes the Brownian motion?

• A. When seen under microscope, the colloidal particles in a colloid are seen to be moving in a random fashion.
• B. When seen under microscope, the colloidal particles in a colloid are seen to be moving in a fixed fashion.
• C. When seen under microscope, the colloidal particles in a mixture are seen to be moving in a fixed fashion.
• D. When seen under microscope, the colloidal particles in a mixture are seen to be moving in a random fashion.

Answer 1

The correct option is A

When seen under microscope, the colloidal particles in a colloid are seen to be moving in a random fashion.

Brownian motion is the erratic random movement of microscopic particles in a fluid, as a result of continuous bombardment from molecules of the surrounding medium.When seen under microscope, the colloidal particles in a colloid are seen to be moving in a random fashion.