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Amines — Concept Maps

Jammu & Kashmir Board · Class 12 · Chemistry

4 concept maps of Amines for Jammu & Kashmir Board Class 12 Chemistry, each also written out as a text outline.

49 questions80 flashcards5 formulas & key relations5 concepts

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A diagram showing ammonia (NH3) and how replacing one, two, or three hydrogen atoms with alkyl (R) or aryl (Ar) groups forms primary, secondary, and tertiary amines, respectively. Illustrates the gene
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4 Concept Maps

Amines — Complete Concept Map

Amines — Complete Concept Map

The map in words

  • Amines
    • Structure
      • sp3 Hybridised N
      • Pyramidal Shape
      • Lone Pair on N
      • Bond angle less than 109.5 deg
    • Classification
      • Primary 1 degree RNH2
      • Secondary 2 degree R2NH
      • Tertiary 3 degree R3N
      • Alkylamines
      • Arylamines
    • Nomenclature
      • Common name alkyl plus amine
      • IUPAC alkanamine
      • N dash locant for 2 degree 3 degree
      • Aniline accepted IUPAC
    • Preparation
      • Reduction of Nitro Compounds
      • Ammonolysis of Alkyl Halides
      • Reduction of Nitriles LiAlH4
      • Reduction of Amides LiAlH4
      • Gabriel Phthalimide Synthesis
      • Hoffmann Bromamide Degradation
    • Physical Properties
      • Lower amines are gases
      • Fishy odour
      • H bonding in 1 degree and 2 degree
      • BP order 1 degree greater than 2 degree greater than 3 degree
      • Solubility decreases with molar mass
    • Chemical Reactions
      • Basic Nature salts with acids
      • Alkylation
      • Acylation amides formed
      • Carbylamine Test primary only
      • Reaction with HNO2
      • Hinsberg Test
      • Electrophilic Substitution
    • Basicity
      • Alkylamines greater than NH3
      • Arylamines less than NH3
      • Aniline pKb 9.38
      • Factors I effect solvation steric
    • Diazonium Salts
      • Diazotisation 273 to 278 K
      • Sandmeyer Cl Br CN
      • Gattermann Cl Br
      • Balz Schiemann F only route
      • KI for Iodo
      • Hydrolysis for OH
      • Coupling Azo Dyes

Classification and Overview of Amines

Classification and Overview of Amines

The map in words

  • Amines
    • Structure
      • sp3 hybridised N
      • Pyramidal shape
      • Lone pair on N
    • Classification
      • Primary 1 degree
        • R-NH2
      • Secondary 2 degree
        • R2NH
      • Tertiary 3 degree
        • R3N
    • Preparation
      • Nitro compound reduction
      • Ammonolysis of alkyl halides
      • Nitrile reduction
      • Amide reduction
      • Gabriel synthesis
      • Hoffmann degradation
    • Physical Properties
      • BP order
        • Primary highest
        • Secondary
        • Tertiary lowest
      • Solubility in water
      • H-bonding
    • Chemical Reactions
      • Basic character
      • Alkylation
      • Acylation
      • Carbylamine test
      • Reaction with HNO2
      • Hinsberg test
      • Electrophilic substitution
    • Diazonium Salts
      • Diazotisation
      • Sandmeyer reaction
      • Balz-Schiemann
      • Coupling reaction
      • Azo dyes

Basicity of Amines in Aqueous Solution — The Three-Factor Analysis

Basicity of Amines in Aqueous Solution — The Three-Factor Analysis

The map in words

  • Amine in Aqueous Solution
    • Which factors operate?
      • Inductive Effect
        • More alkyl groups\nMore +I effect\nHigher electron density on N
          • Favours Tertiary Amine
            • Net Result in Water
              • Methylamines Order
                • Dimethylamine stronger\nthan Trimethylamine
                  • NOT simply Tertiary bigger than Primary
              • Ethylamines Order
                • Diethylamine stronger\nthan Triethylamine
      • Solvation Effect
        • More N-H bonds\nBetter H-bonding with water\nConjugate acid more stable
          • Favours Primary Amine
      • Steric Hindrance
        • Bulkier alkyl groups\nHinder water approach\nPoor solvation
          • Disfavours Tertiary Amine

Amines

Amines

The map in words

  • Amines
    • Definition and nature
    • Classification
    • Structure and geometry
    • Nomenclature
    • Methods of preparation
    • Basic character
    • Factors affecting basicity
    • Physical properties

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Frequently Asked Questions

What are the important topics in Amines for Jammu & Kashmir Board Class 12 Chemistry?
Key topics in Amines include Structure, Nature, and Classification of Amines, Nomenclature of Amines, Preparation of Amines, Physical Properties and Basicity. Study these first, then practise questions on each for the Jammu & Kashmir Board Class 12 board exam.
What do the concept maps for Amines show?
The 4 maps show how the ideas in Amines connect: Amines — Complete Concept Map; Classification and Overview of Amines. Each map is also written out as an outline on this page.
How should I revise Amines for the Jammu & Kashmir Board Class 12 board exam?
Learn the core ideas first, then work through the 49 practice questions on Amines. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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All Jammu & Kashmir Board Class 12 Chemistry Concept Maps

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