Question

Choose the correct reason(s) for the stability of the lyophobic colloidal particles.
A. Preferntial adsorption of ions on their surface from the solution.
B. Preferntial adsorption of solvent on their surface from the solution.
C. Attraction between difference particle having opposite charges on their surface.
D. Potential difference between the fixed layer and the diffused layer of opposite charges around the colloidal particles.

Answer 1

Correct Answer - A::D
a. due to prefential of common ions
b. False
False (due to repulsion not due to attraction)
The layer of oppositely charged particles around any colloidal particles will decrease the potential energy of system as a whole.