The stability and physical characteristics of colloidal dispersions depend heavily on phase interact — Surface Chemistry Chemistry Question

💡 Solution & Explanation

Statement A is true; lyophilic sols are physically reversible. Statement B is true; lyophobic sols lack affinity and need stabilizers to prevent immediate precipitation. Statement C is backwards; lyophobic sols are easily coagulated by electrolytes, whereas lyophilic sols are robust and require large amounts of electrolyte plus a dehydrating agent to coagulate. Statement D correctly identifies solvation as the primary stability mechanism for lyophilic sols.