Case: Read the passage and answer the following questions
A colloid is a heterogeneous system in which one substance is dispersed (dispersed phase) as very fine particles in another substance called a dispersion medium. The essential difference between a solution and a colloid is that of particle size. Colloids are classified based on the following criteria: (i) Physical state of the dispersed phase and dispersion medium (ii) Nature of interaction between the dispersed phase and dispersion medium (iii) Type of particles of the dispersed phase.
Why lyophilic colloids are stable?
Answer & explanation
Correct answer: option 3
The stability of lyophilic sols is due to the presence of a charge and the solvation of colloidal particles. This provides a layer of dispersion medium.