To solve the given matching problem, we need to correctly associate reagents from Column II to the compounds in Column I based on their typical chemical reactions or tests in chemistry.
(A) Aniline: Aniline is a primary amine, and it reacts with the Hinsberg reagent (benzene sulfonyl chloride) to form a sulfonamide, which is a key characteristic test for primary amines. Thus, Aniline matches with (P) Hinsberg reagent.
(B) Benzaldehyde: Benzaldehyde is an aldehyde, and it gives a positive test with Tollen's reagent, which is used to distinguish aldehydes from ketones. The aldehyde is oxidized to a carboxylate ion, and a silver mirror is deposited. Therefore, Benzaldehyde matches with (Q) Tollen's reagent.
(C) Phenol: Phenol undergoes the Phthalein dye test, where it reacts with phthalic anhydride in the presence of a catalyst to form phenolphthalein, a common pH indicator. Hence, Phenol matches with (S) Phthalein dye test.
(D) Isopropanol: Isopropanol is a secondary alcohol, and it reacts with the Lucas reagent (concentrated hydrochloric acid and zinc chloride) to form a turbidity due to the formation of an insoluble alkyl chloride. Consequently, Isopropanol matches with (R) Lucas reagent.