Question

Which of the following factors contribute towards higher stability of lyophilic colloid?

• A. Charge on their particles
• B. Attractive forces between particles
• C. Small size of their particles
• D. High solvation due to a layer of dispersion medium

Answer 1

The correct option is D High solvation due to a layer of dispersion medium

There are two factors which are responsible for the stability of lyophilic sols-

These factors are the charge and solvation of the colloidal particles. When these two factors are removed, a lyophilic sol can be coagulated. This is done:

• by adding an electrolyte
  
• by adding a suitable solvent

Hence, high solvation due to a layer of the dispersion medium is a factor contributing to the stability of lyophilic colloids and hence option D is right.