Question

Lyophilic sols are more stable than lyophobic sols because

• A. the colloidal particles have positive charge
• B. the colloidal particles have no charge
• C. the colloidal particles are more solvated
• D. there are strong electrostatic repulsions between the negatively charged colloidal particles

Answer 1

Answer: (C)

The stability of lyophilic solsis a result of two factors, the presence of a charge and the solvation of colloidal particles. On the other hand, the stability of lyophobic solsis only because of the presence of a charge. Thus, thelyophilic solismore stable thanlyophobic soldue to the extensive solvation.