CBSE 12 Chemistry · U9
Amines
Structure, classification, nomenclature, preparation, physical properties and reactions of amines; diazonium salt preparation, reactions, and synthetic importance. Theory weightage: 6 marks.
Test yourself
A focused, distraction-free run through 25 multiple-choice questions. Hints if you need them; your score at the end.
Difficulty guide
The label describes the problem, not your ability.
1/5 - Foundational
Warm-up setup; checks one basic idea.
2/5 - Routine exam skill
Normal syllabus skill; usually one main rule or interpretation.
3/5 - Standard multi-step
Exam-style problem with multiple steps or a common trap.
4/5 - Hard exam skill
High-end exam problem; combines methods carefully.
5/5 - Challenge
Stretch problem beyond normal exam pressure.
Topic 9.1
Structure, Classification and Nomenclature
Classify amines, name aliphatic and aromatic amines, and connect the nitrogen lone pair with pyramidal structure and hydrogen bonding.
Topic 9.2
Preparation of Amines
Use reduction, ammonolysis, Gabriel synthesis and Hoffmann bromamide degradation with correct carbon counting and limitations.
Topic 9.3
Basicity and Physical Properties
Compare basic strength using inductive effect, resonance and solvation, and explain solubility and boiling-point trends.
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Topic 9.4
Chemical Reactions and Identification
Apply carbylamine, Hinsberg, acylation, electrophilic substitution and nitrous-acid reactions to distinguish and transform amines.
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Topic 9.5
Diazonium Salts and Aromatic Synthesis
Prepare benzene diazonium salts at low temperature and use replacement, coupling and deamination reactions for synthetic conversions.
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