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Syllabus

Ionic Equilibrium — Syllabus

Telangana Open School (TOSS) · Class 12 · Chemistry

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

53 questions35 flashcards15 formulas & key relations5 concepts

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

Topics in Ionic Equilibrium

1

1. Concepts of Acids and Bases

  • Arrhenius concept: Acids produce H⁺ ions, bases produce OH⁻ ions in water.
  • Bronsted-Lowry concept: Acids are proton donors, bases are proton acceptors.
  • Lewis concept: Acids accept electron pairs, bases donate electron pairs.
2

2. Strength of Acids and Bases

  • Strong acids/bases ionize completely in water; weak ones partially ionize.
  • Ka (acid dissociation constant) measures strength of weak acids.
  • Kb (base dissociation constant) measures strength of weak bases.
3

3. Self-Ionization of Water and pH Scale

  • Water undergoes auto-ionization: H₂O + H₂O ⇌ H₃O⁺ + OH⁻.
  • Ionic product of water, Kw = [H₃O⁺][OH⁻] = 1.0 × 10⁻¹⁴ at 298 K.
  • pH = -log[H₃O⁺], pOH = -log[OH⁻], and pH + pOH = 14.
4

4. Common Ion Effect and Buffer Solutions

  • Common ion effect suppresses ionization of weak acids or bases when a salt with the same ion is added.
  • Buffer solutions resist pH change upon addition of small amounts of acid or base.
  • Acidic buffers: weak acid + its salt (e.g., CH₃COOH + CH₃COONa).

Key Concepts

Central concept: Ionic Equilibrium

Acid-Base ConceptsRelative Strength of Acids and BasesQuantitative Aspects of IonizationSelf-Ionisation of WaterCommon Ion EffectBuffer SolutionsSalt HydrolysisSolubility Equilibrium

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Frequently Asked Questions

What are the important topics in Ionic Equilibrium for Telangana Open School (TOSS) Class 12 Chemistry?
Key topics in Ionic Equilibrium include Concepts of Acids and Bases, Strength of Acids and Bases, Self-Ionization of Water and pH Scale, Common Ion Effect and Buffer Solutions. Study these first, then practise questions on each for the Telangana Open School (TOSS) Class 12 board exam.
How should I revise Ionic Equilibrium for the Telangana Open School (TOSS) Class 12 board exam?
Learn the core ideas first, then work through the 53 practice questions on Ionic Equilibrium. 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.

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All Telangana Open School (TOSS) Class 12 Chemistry Syllabus

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