26 public questions tagged with this topic.
Aniline ( C₆H₅NH₂ ) reacts with Br₂ in water to form 2, 4, 6-tribromoaniline due to the strong activating effect of the -NH₂ group, leading to trisubstitution.
Ref: NCERT Chemistry Textbook - Latest Edition for Academic Session 2026-27 (Rationalized Textbook for Class XI and XII)Topic: Mole concept, atomic structure, chemical formulas like H₂O, CO₂, CH₃CH₂NH₂ and periodic trends.
Resonance in aniline delocalizes the nitrogen lone pair into the benzene ring, reducing basicity compared to aliphatic amines, as per the PDF.
Ref: NCERT Class 12 Chemistry > Chapter 13: Amines > Topic: Reaction with Nitrous Acid and Diazonium Salts - Part 1
Aniline (C₆H₅NH₂) with Br₂ in acetic acid (less reactive medium) forms p-bromoaniline predominantly due to the ortho-para directing effect of −NH₂, as per the PDF.
Ref: NCERT Class 12 Chemistry > Chapter 13: Amines > Topic: Chemical Reactions - Carbylamine Reaction and General Reactions
Aniline (C₆H₅NH₂, 6C) forms 2,4,6-tribromoaniline (C₆H₂Br₃NH₂), retaining 6 carbon atoms, as per the PDF’s chemical properties.
Ref: NCERT Class 12 Chemistry > Chapter 13: Amines > Topic: Chemical Reactions - Carbylamine Reaction and General Reactions
Aniline (C₆H₅NH₂) with H₂SO₄ at high temperature forms p-aminobenzene sulphonic acid (sulphanilic acid), as per the PDF’s chemical properties.
Ref: NCERT Class 12 Chemistry > Chapter 13: Amines > Topic: Chemical Reactions - Carbylamine Reaction and General Reactions
Acetic anhydride ((CH₃CO)₂O) acetylates aniline to acetanilide, reducing reactivity of the −NH₂ group, as per the PDF’s chemical properties.
Ref: NCERT Class 12 Chemistry > Chapter 13: Amines > Topic: Chemical Reactions - Alkylation, Acylation and Electrophilic Substitution
Aniline (C₆H₅NH₂) with H₂SO₄ at high temperature forms p-aminobenzene sulphonic acid (sulphanilic acid), as per the PDF’s chemical properties.
Ref: NCERT Class 12 Chemistry > Chapter 13: Amines > Topic: Chemical Reactions - Alkylation, Acylation and Electrophilic Substitution
Aniline’s nitrogen forms a salt with AlCl₃ (Lewis acid catalyst), acquiring a positive charge and deactivating the ring for electrophilic substitution.
Ref: NCERT Class 12 Chemistry > Chapter 13: Amines > Topic: Chemical Reactions - Alkylation, Acylation and Electrophilic Substitution
Acetyl chloride (CH₃COCl) acetylates aniline to form acetanilide (C₆H₅NHCOCH₃), as per the PDF’s chemical properties.
Ref: NCERT Class 12 Chemistry > Chapter 13: Amines > Topic: Chemical Reactions - Alkylation, Acylation and Electrophilic Substitution
Aniline forms anilinium hydrogensulphate, which rearranges on heating to p-aminobenzene sulphonic acid (sulphanilic acid).
Ref: NCERT Class 12 Chemistry > Chapter 13: Amines > Topic: Chemical Reactions - Alkylation, Acylation and Electrophilic Substitution
The −NH₂ group’s resonance effect donates electrons to the ring, activating ortho and para positions, as per the PDF’s chemical properties.
Ref: NCERT Class 12 Chemistry > Chapter 13: Amines > Topic: Physical Properties, Basic Character and Solubility
Aniline (C₆H₅NH₂) undergoes electrophilic substitution with excess bromine water, forming 2,4,6-tribromoaniline due to the strong activating effect of the −NH₂ group.
Ref: NCERT Class 12 Chemistry > Chapter 13: Amines > Topic: Physical Properties, Basic Character and Solubility
