CBSE Class 12 Chemistry — Amines
All previous year questions from Chapter: Amines
5 questions found
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2026(5 questions)
- 10
Aniline on direct nitration yields
1 mark· A· Direct nitration of aniline - 11
Which of the following amines has lowest pKb value?
1 mark· A· Basicity of aromatic amines (pKb) - 29
(a) (i) Why CH₃ – NH₂ is a stronger base than (CH₃)₃N in aqueous solution? (2 × 1) (ii) Write structural formulae of the compound A and B: CH₃CONH₂ —(NaOBr)→ A —(C₆H₅COCl / Base)→ B
2 marks· D· Basicity of Amines and Hofmann Bromamide Degradation - 30
(b) A compound 'X' with molecular formula C₃H₉N reacts with Hinsberg reagent to give a product insoluble in alkali. Identify 'X'. OR (b) How can you convert aniline to benzonitrile?
1 mark· D· Hinsberg Test / Aniline to Benzonitrile - 31
(c) Why is –NH₂ group of aniline acetylated before carrying out nitration?
1 mark· D· Protection of amino group before nitration of aniline