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Syllabus

Electro Chemistry — Syllabus

Telangana Open School (TOSS) · Class 12 · Chemistry

What Electro Chemistry covers in Telangana Open School (TOSS) Class 12 Chemistry: 4 topics, for the 2026-27 session.

45 questions30 flashcards6 formulas & key relations5 concepts

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4 Topics · Telangana Open School (TOSS) Class 12 Chemistry · 2026-27

Topics in Electro Chemistry

1

1. Oxidation and Reduction (Redox Reactions)

  • Oxidation is the loss of electrons; reduction is the gain of electrons.
  • Oxidation and reduction always occur together in a redox reaction.
  • The species that loses electrons is oxidized and acts as a reducing agent (reductant).
2

2. Oxidation Number and Rules

  • Oxidation number is the apparent charge on an atom in a compound or ion.
  • It helps identify oxidation and reduction in polyatomic species.
  • Rules help assign oxidation numbers systematically.
3

3. Balancing Redox Reactions

  • Two methods: Oxidation Number Method and Ion-Electron (Half-Reaction) Method.
  • Both ensure conservation of mass and charge.
  • Ion-electron method is preferred in acidic or basic media.
4

4. Electrolytic Conduction and Conductivity

  • Electrolytes conduct electricity in aqueous or molten state due to ion movement.
  • Conductance (L) = 1/R; measured in siemens (S).
  • Conductivity (κ) = 1/ρ; unit S cm⁻¹.

Key Concepts

Central concept: Electro Chemistry

Oxidation and ReductionOxidation NumberBalancing Redox ReactionsElectrolytic ConductionConductance and ConductivityMolar ConductivityElectrochemical CellsElectrode Potential

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Frequently Asked Questions

What are the important topics in Electro Chemistry for Telangana Open School (TOSS) Class 12 Chemistry?
Key topics in Electro Chemistry include Oxidation and Reduction (Redox Reactions), Oxidation Number and Rules, Balancing Redox Reactions, Electrolytic Conduction and Conductivity. Study these first, then practise questions on each for the Telangana Open School (TOSS) Class 12 board exam.
How should I revise Electro Chemistry for the Telangana Open School (TOSS) Class 12 board exam?
Learn the core ideas first, then work through the 45 practice questions on Electro Chemistry. 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.

More resources for Electro Chemistry

All Telangana Open School (TOSS) Class 12 Chemistry Syllabus

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