Covers the fundamental physical properties of compounds, their basic chemical character, and how solubility varies with structure and conditions.
Secondary amines like (CH₃)₂NH form sulphonamides with no acidic hydrogen, making them insoluble in alkali, unlike primary amine products.
Ref: NCERT Class 12 Chemistry > Chapter 13: Amines > Topic: Physical Properties, Basic Character and Solubility
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
In triethylamine ((CH₃CH₂)₃N), nitrogen has three sigma bonds to carbon and one lone pair, indicating sp3 hybridization, as per the PDF’s structure.
Ref: NCERT Class 12 Chemistry > Chapter 13: Amines > Topic: Physical Properties, Basic Character and Solubility
Diethylamine ((CH₃CH₂)₂NH), a secondary amine, has one hydrogen atom directly attached to nitrogen, as per the PDF’s structure.
Ref: NCERT Class 12 Chemistry > Chapter 13: Amines > Topic: Physical Properties, Basic Character and Solubility
In CH₃CH₂NHCH₃, nitrogen has three sigma bonds (two C, one H) and one lone pair, as per the PDF’s structure.
Ref: NCERT Class 12 Chemistry > Chapter 13: Amines > Topic: Physical Properties, Basic Character and Solubility
In trimethylamine ((CH₃)₃N), nitrogen has three sigma bonds to carbon and one lone pair, as per the PDF’s structure section.
Ref: NCERT Class 12 Chemistry > Chapter 13: Amines > Topic: Physical Properties, Basic Character and Solubility
Aniline (C₆H₅NH₂) undergoes electrophilic substitution with Br₂ in water, forming 2,4,6-tribromoaniline and decolorizing bromine, as per the PDF.
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
Aniline (C₆H₅NH₂) with excess Br₂ in water forms 2,4,6-tribromoaniline due to the strong activation by −NH₂, as per the PDF.
Ref: NCERT Class 12 Chemistry > Chapter 13: Amines > Topic: Physical Properties, Basic Character and Solubility
Aniline (C₆H₅NH₂) forms sulphanilic acid (H₂NC₆H₄SO₃H) with a benzene ring when reacted with H₂SO₄ at high temperature, as per the PDF.
Ref: NCERT Class 12 Chemistry > Chapter 13: Amines > Topic: Physical Properties, Basic Character and Solubility
Acetic anhydride ((CH₃CO)₂O) reacts with aniline to form acetanilide by acetylating the −NH₂ group, as described in the PDF’s chemical properties.
Ref: NCERT Class 12 Chemistry > Chapter 13: Amines > Topic: Physical Properties, Basic Character and Solubility
Ethylamine (CH₃CH₂NH₂, 2C) reacts with acetyl chloride (CH₃COCl, 2C) to form N-ethylacetamide (CH₃CONHCH₂CH₃, 4C), as per the PDF.
Ref: NCERT Class 12 Chemistry > Chapter 13: Amines > Topic: Physical Properties, Basic Character and Solubility
