Question

Which of the following is a correct statement?

• A. Brownian motion destabilises sols.
• B. Any amount of dispersed phase can be added to emulsion without destabilising it.
• C. Mixing two oppositely charged sols in equal amount neutralises charges and stabilises colloids.
• D. Presence of equal and similar charges on colloidal particles provides stability to the colloidal solution.

Answer 1

Answer: (D)

Presence of equal and similar charges on colloidal particles provides stability to the colloidal solution.

Answer 2

The correct statement is “Presence of equal and similar charges on colloidal particles provides stability to the colloidal solution.”

This statement reflects the principle of electrostatic stabilization in colloidal systems, where the presence of similar charges on colloidal particles leads to electrostatic repulsion, preventing them from coalescing or aggregating.

So, the correct option is (D).