Class IX Chemistry

7 sections • 97 lectures •

Matter In our Surroundings: Introduction		min
Physical Nature of Matter	preview	min
Characteristics of Particles of Matter		min
Types of Matter		min
The Effect of Temperature	preview	min
The Effect of Pressure	preview	min
Did You Know?		min
Summary		min

Is Matter around us Pure-I: Introduction	preview	min
Classification of Matter	preview	min
Compounds and Phase		min
Homogeneous Materials & Mixtures		min
Solutions		min
Heterogeneous Mixtures		min
Element		min
Compounds		min
Differences Between Elements and Compounds		min
Mixtures		min
Heterogeneous & Homogeneous Mixture		min
Differences Between Compounds and Mixtures		min
Activity		min
Solution		min
Types of Solutions		min
Properties of a Solution		min
Suspension		min
Colloids		min
Tyndall Effect		min
Separation of Mixtures & Two Immiscible Liquids		min
Separation of Two Immiscible		min
Sublimation		min
Crystallisation		min
Physical Change		min
Chemical Change		min
Summary		min

	Is Matter around us Pure-II: Introduction		min
	Classification of Mixture		min
	Pure Substances and Mixtures		min
	Differences Between Pure Substances and Mixtures		min
	Types of Mixtures		min
	True Solution and its Properties		min
	Colloidal Solution		min
	Properties of Colloidal Solutions		min
	Suspension and its Properties		min
	Tyndall Effect		min
	Concentration of a Solution		min
	Separating the Components of a Mixture		min
	Evaporation		min
	Centrifugation		min
	Decantation Using Separating Funnel		min
	Did You Know?		min
	Summary		min

	Is Matter Around Us Pure-III: Introduction		min
	Sublimation		min
	Chromatography		min
	Distillation		min
	Fractional Distillation		min
	Separation of Components of Air		min
	Purification of Solids by Crystallisation		min
	Types of Pure Substances		min
	Did You Know?		min
	Summary		min

	Atoms and Molecules-I: Introduction		min
	Laws of Chemical Combination		min
	Law of Conservation of Mass		min
	Law of Constant Proportions		min
	Dalton’s Atomic Theory		min
	Atoms		min
	Symbols of Atoms of Different Elements		min
	Molecules		min
	Molecules of Compounds		min
	Did You Know?		min
	Summary		min

	Atoms and Molecules-II: Introduction		min
	Ion		min
	Writing Chemical Formulae-I		min
	Writing Chemical Formulae-II		min
	Formulae of Simple Compounds		min
	Molecular Mass and Mole Concept		min
	Summary		min
	Did You Know?		min

	Structure of the Atom: Introduction		min
	Atom		min
	Isotopes		min
	Thomson’s Model of an Atom		min
	Rutherford’s Scattering Experiment		min
	Rutherford’s Atomic Model		min
	Drawback of Rutherford’s Nuclear Model of an Atom		min
	Bohr’s Model of an Atom		min
	Electron Distribution in Various Shells		min
	Valency		min
	Atomic Number		min
	Mass Number		min
	Structure of the Hydrogen and Oxygen Atom		min
	Isotopes		min
	Isobars		min
	Did You Know?		min
	Summary		min