Focuses on symbols, valency, and chemical formulae.
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: Focuses on technical vocabulary, analytical thinking, and board exam preparation. Chapter List viraf j dalal class 9 chemistry book pdf download top
| Chapter No. | Chapter Name | Key Topics Covered | | :--- | :--- | :--- | | 1 | The Language of Chemistry | Symbols, Valency, Chemical Formulas, Equations | | 2 | Chemical Changes & Reactions | Types of reactions, Energy changes, Decomposition | | 3 | Water | Hydrated salts, Efflorescence, Deliquescence, Soft/Hard water | | 4 | Atomic Structure | Dalton’s theory, Subatomic particles, Isotopes | | 5 | The Periodic Table | Dobereiner’s triads, Mendeleev’s table, Modern periodic law | | 6 | Study of the First Element – Hydrogen | Preparation, properties, uses of hydrogen | | 7 | Study of Gas Laws | Boyle’s law, Charles’ law, Absolute zero | | 8 | Atmospheric Pollution | Greenhouse effect, Acid rain, Ozone depletion | Focuses on symbols, valency, and chemical formulae