Isomeric amines with molecular formula C8H11N give the following tests Isomer (P) Can be prepared by — JEE Mains Chemistry Past Papers Chemistry Question
Question
Isomeric amines with molecular formula C8H11N give the following tests Isomer (P) Can be prepared by Gabriel phthalimide synthesis Isomer (Q) Reacts with Hinesburg’s reagent to give solid insoluble in NaOH Isomer (R) Reacts with HONO followed by –naphthol in NaOH to give red dye. Isomers (P), (Q) and (R) respectively are P Q R
💡 Solution & Explanation
(P) Gabriel synthesis is used for the preparation of aliphatic primary amines. Aromatic primary amines cannot be prepared by this method. (Q) 2º amine react with Hinsberg's reagent to give solid insoluble in NaOH. (R) Aromatic amines react with nitrous acid at low temperatures (273-278 K) to form diazonium salts, which form red/orange dye with -Napthol. | JEE(Main) 2023 | DATE : 10-04-2023 (SHIFT-1) | PAPER-1 | OFFICIAL PAPER | CHEMISTRY PAGE # 2