Ionic Equilibria
Maharashtra Board · Class 12 · Chemistry
Complete topic list for Ionic Equilibria in Maharashtra Board Class 12 Chemistry. Key concepts, sub-topics, and what to focus on for board exams.
Topics in Ionic Equilibria
Types of Electrolytes and Degree of Dissociation
- Strong electrolytes: Complete ionization (HCl, NaOH, salts)
- Weak electrolytes: Partial ionization with equilibrium establishment
- Degree of dissociation (α) = moles dissociated / total moles
Theories of Acids and Bases
- Arrhenius Theory: Acids produce H⁺, bases produce OH⁻ in water
- Brønsted-Lowry Theory: Acids are proton donors, bases are proton acceptors
- Lewis Theory: Acids accept electron pairs, bases donate electron pairs
Ostwald's Dilution Law and Dissociation Constants
- Applies to weak electrolytes in equilibrium state
- Degree of dissociation increases with dilution
- Ka and Kb are equilibrium constants for weak acids and bases
Autoionization of Water and pH Scale
- Pure water undergoes self-ionization: 2H₂O ⇌ H₃O⁺ + OH⁻
- Ionic product of water: Kw = [H₃O⁺][OH⁻] = 1.0 × 10⁻¹⁴ at 25°C
- pH = -log₁₀[H⁺], pOH = -log₁₀[OH⁻]
Key Concepts
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What are the important topics in Ionic Equilibria for Maharashtra Board Class 12 Chemistry?
Ionic Equilibria covers several key topics that are frequently asked in Maharashtra Board Class 12 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
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