CBSE · Class 11 · Chemistry · Chapter 7
Redox Reactions
Oxidation, reduction and balancing redox equations.
Start chapterLessons in this chapter
- 1Oxidation and Reduction Always Occur TogetherLearn to recognise paired chemical changes through oxygen, hydrogen, and the elements exchanged between substances.
- 2Electron Transfer and Competition for ElectronsExplain redox changes through electron transfer and use metal–ion reactions to compare reducing tendencies.
- 3Oxidation Numbers: Rules, Meaning, and LimitsUse oxidation numbers to track redox changes while distinguishing formal bookkeeping from real atomic charge.
- 4Recognising Redox Reaction PatternsIdentify the main redox reaction families and explain their patterns using oxidation states and relative reactivity.
- 5Balancing Redox Equations by Oxidation NumbersBalance electron-equivalent changes first, then conserve charge and atoms in acidic and basic solutions.
- 6Balancing Redox Equations by Half ReactionsBuild balanced oxidation and reduction halves, then combine them so every transferred electron is accounted for.
- 7Redox in Titrations and Electrochemical CellsConnect redox stoichiometry with colour endpoints, electrode reactions, and electrical energy.
- 8Chapter Summary and PracticeConnect the whole chapter by moving from observed changes to electron accounting, balanced equations, and useful applications.