Match Column I with Column II: — Surface Chemistry Chemistry Question

💡 Solution & Explanation

(A) Silica gel acts as a desiccant by adsorbing water molecules onto its surface, hence it represents adsorption (Q). (B) Anhydrous CaCl₂ removes water by chemically associating with it throughout its entire volume to form a hydrate, which is an absorption process (P). (C) Surface phenomena are restricted strictly to the surface of a phase, which include adsorption (Q) and evaporation of a liquid (R). (D) Bulk phenomena happen uniformly throughout the body of a material, which encompass absorption (P) and the boiling of a liquid (S). Therefore, correct answer is A-Q, B-P, C-Q, C-R, D-P, D-S.