CBSE 11 Chemistry · U7
Redox Reactions
CBSE Class 11 Chemistry Unit VII: classical oxidation and reduction, electron-transfer view, oxidation number, oxidising and reducing agents, balancing redox reactions and electrode processes.
Test yourself
A focused, distraction-free run through 50 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 7.1
Oxidation, Reduction and Electron Transfer
Classical oxidation/reduction ideas, electron-loss/electron-gain model and paired redox changes
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Topic 7.2
Oxidation Number Rules and Redox Agents
Oxidation-number assignment, changes in oxidation state and identification of oxidants/reductants
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Topic 7.3
Types of Redox Reactions
Combination, decomposition, displacement and disproportionation reactions with oxidant/reductant roles
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Topic 7.4
Balancing Redox Reactions
Oxidation-number method and half-reaction method in acidic and basic media
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Topic 7.5
Redox Reactions and Electrode Processes
Oxidation and reduction at electrodes, anode/cathode roles, simple galvanic-cell interpretation and electrode half-reactions
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