Carboxylic Acid & Amines - NEET Previous Year Questions with Complete Solutions

Basicity of amines is the single most frequently tested subtopic. Questions specifically test the basicity order change between gas phase and aqueous solution, and the effect of electron-withdrawing vs. electron-donating groups on aromatic amine basicity. The Carbylamine test and Gabriel synthesis also appear repeatedly

Yes, NCERT is sufficient for at least 80–85% of NEET questions from these chapters. All named reactions, definitions, and distinction tests in NEET are directly traceable to NCERT Class 12 Chemistry Chapters 12 and 13. After completing NCERT, solve PYQs to check gaps — you rarely need additional material beyond that

On average, 4–5 questions appear from these two chapters combined in NEET every year. The count has been rising — from 3 questions in 2016 to 5 in both 2023 and 2024. Both chapters consistently appear, making them high-priority topics for NEET Chemistry preparation.

Solve PYQs chapter-wise, not year-wise. After each attempt, categorise your mistakes into concept gaps, reaction recall errors, or careless mistakes and target each differently. Aim to solve at least the last 9 years of questions (2016–2024) and review every solution — even for questions you answered correctly, to understand the reasoning path

Yes. Diazonium salt reactions — specifically Sandmeyer, Gattermann, and Balz–Schiemann reactions — have appeared in NEET 2021, 2022, and 2023. These reactions fall under the Amines chapter and are tested both individually and as part of multi-step conversion questions. Do not skip this section during revision

The Carbylamine test identifies primary amines only. When a primary amine is heated with chloroform and alcoholic KOH, it produces an isocyanide (carbylamine) with a characteristic foul smell. Secondary and tertiary amines do not give this test. It is one of the most frequently asked "distinguishing test" questions in NEET Chemistry.