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Amines NEET UG Practice Paper Chemistry (PYQs) Part 18

NEET UG – Chemistry Practice Paper – Part 18 | Topic: Amines

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NEET UG Chemistry Practice Paper Part 18 on Amines with 30 MCQs, instant scoring, explanations, and PYQ-based questions for NEET 2026 preparation.

Total Questions: 30 | Total Marks: 120

Q1. Basicity order in aqueous solution is:




Secondary amines are most basic in aqueous solution.

Q2. Which test distinguishes primary amine?




Only primary amines give carbylamine test.

Q3. Aniline is less basic than methylamine because:




Lone pair delocalized in benzene ring.

Q4. Hinsberg reagent is used to distinguish:




Differentiates 1°, 2°, 3° amines.

Q5. Diazotisation occurs with:




Forms diazonium salt.

Q6. Which compound forms diazonium salt stable at 0–5°C?




Aromatic diazonium salts are stable.

Q7. Which reaction converts amide to amine?




One carbon less amine formed.

Q8. Basicity of amines depends on:




Multiple factors influence basicity.

Q9. Which amine gives alcohol on reaction with nitrous acid?




Forms unstable diazonium intermediate.

Q10. Aniline undergoes bromination to give:




Strongly activating −NH₂ group.

Q11. Which amine is most basic in gas phase?




+I effect dominates in gas phase.

Q12. Which compound undergoes Sandmeyer reaction?




Diazonium group replaced.

Q13. Which amine forms nitrosoamine?




Secondary amines form nitrosoamines.

✅ Conclusion – Part 18 (Amines)

The Amines chapter is one of the most concept-driven sections of Organic Chemistry for NEET. It connects reaction mechanisms, basicity trends, resonance effects, and important name reactions like Hoffmann bromamide and Sandmeyer reaction. Mastery of amines strengthens understanding of substitution reactions and aromatic chemistry.

Part 18 helps students clearly understand basicity order in different phases, resonance effects in aniline, diazotisation reactions, and distinguishing tests like Carbylamine and Hinsberg. NEET frequently asks comparison-based questions from this chapter, and small conceptual errors can lead to wrong answers.

By solving this paper, students improve reaction prediction skills, gain clarity in nitrogen chemistry, and build confidence in aromatic substitution reactions involving amines. The structured 30-question format strengthens exam temperament, speed, and accuracy.

Overall, mastering Amines ensures stronger Organic Chemistry performance and reduces errors in mechanism-based questions—making this chapter a reliable scoring area in NEET.

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