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
$(a) (i) Why CH₃ - NH₂ is a stronger base than (CH₃)₃N in aqueous solution? (2 \times 1) (ii) Write structural formulae of the compound A and B: CH₃CONH₂ —(NaOBr)\to A —(C₆H₅COCl / Base)\to B$
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· $Protection of amino group before nitration of aniline$