1: Matter in Our Surroundings
This chapter introduces the concept of matter, its physical nature, characteristics of particles, and the different states of matter with their interconversion processes.
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Introduction to Matter: English -
Physical Nature of Matter: English
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Introduction to Matter: Hindi
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Characteristics of Particles of Matter: Hindi
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Identifying properties of different states of matter.
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Not startedUnderstanding the factors affecting evaporation.
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Not started2: Is Matter Around Us Pure
This chapter differentiates between pure substances and mixtures, categorizes mixtures into solutions, suspensions, and colloids, and discusses various separation techniques.
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What is a Pure Substance? (Elements and Compounds): English
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Mixtures (Homogeneous and Heterogeneous): English
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Solutions (Properties of Solutions): English
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Suspensions and Colloids (Tyndall Effect): Hindi
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Separating the Components of a Mixture (Evaporation, Centrifugation, Decantation, Sublimation): Hindi
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Chromatography and Distillation: Hindi
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Classifying substances as pure or mixed.
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Not startedIdentifying appropriate separation techniques for different mixtures.
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Not started3: Atoms and Molecules
This chapter introduces the fundamental building blocks of matter – atoms and molecules, explaining laws of chemical combination, atomic and molecular mass, and the mole concept.
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Laws of Chemical Combination (Law of Conservation of Mass, Law of Constant Proportions): English
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Atoms (Dalton's Atomic Theory, Atomic Mass): English
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Molecules (Molecules of Elements and Compounds): English
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Laws of Chemical Combination (Law of Conservation of Mass, Law of Constant Proportions): Hindi
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Writing Chemical Formulae: Hindi
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Molecular Mass and Mole Concept: Hindi
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Writing correct chemical formulae for compounds.
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Not startedCalculating molecular mass and applying mole concept in numericals.
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Not started4: Structure of the Atom
This chapter explores the subatomic particles (electrons, protons, neutrons), various atomic models (Thomson, Rutherford, Bohr), and concepts of atomic number, mass number, isotopes, and isobars.
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Discovery of Electron, Proton and Neutron: English
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Thomson's Model of an Atom: English
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Rutherford's Model of an Atom: Hindi
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Bohr's Model of an Atom: Hindi
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Comparing different atomic models.
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Not startedDistinguishing between isotopes and isobars.
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