Which among the following is a classic example of a lyophobic colloid?

💡 Solution & Explanation

Gold sol is a classic example of a lyophobic colloid, characterized by a solvent-fearing nature where the dispersed phase has little affinity for the dispersion medium and requires stabilizing agents. In contrast, starch, proteins, and gelatin form lyophilic colloids that possess a strong affinity for water and generate stable dispersions easily. Lyophobic sols are irreversible in nature and easily precipitate upon the addition of small amounts of electrolytes.