CBSE 12 Chemistry · U6
Haloalkanes and Haloarenes
Classification, nomenclature, nature of the C-X bond, preparation, physical and chemical properties, nucleophilic substitution, haloarene reactions, and polyhalogen compounds. 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 6.1
Classification, Nomenclature and the C-X Bond
Classify haloalkanes and haloarenes, name them, and reason from the nature of the carbon-halogen bond.
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Topic 6.2
Preparation of Haloalkanes and Haloarenes
Select reagents and conditions for preparing haloalkanes and haloarenes without mixing up named reactions.
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Topic 6.3
Substitution, Elimination and Stereochemistry
Distinguish substitution and elimination conditions, ambident nucleophile products, and SN1/SN2 stereochemical outcomes.
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Topic 6.4
Haloarene Reactions and Organometallic Routes
Explain haloarene substitution patterns, harsh nucleophilic substitution conditions, and carbon-carbon bond forming reactions of halides.
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Topic 6.5
Polyhalogen Compounds and Environmental Aspects
Use reactions, storage facts and environmental evidence to reason about chloroform, iodoform, carbon tetrachloride, freons and DDT.
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