Lyophillic colloids are more stable than lyophobic colloids. Explain.

Explanation

The stability of lyophobic colloids towards coagulation is only due to one factor i.e., the presence of charge on colloidal particles. On the other hand, the stability of lyophillic colloids towards coagulation is due to two factors. One being the charge on colloidal particles and the other being the solvation of colloidal particles. Due to great affinity between dispersed phase and dispersion medium in case of lyophilic colloids the colloidal particles of these sols are highly solvated. This presents their coagulation on the addition of suitable electrolyte.