Chemistry | Class 9

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    Chapter 1 Introduction to Chemistry ( 35 videos)  (Practice Test)

      1.1: Historical Background of Chemistry (Practice Test)
      Chemistry
    1. Chemistry
      31442 views
      2. History of Chemistry, Chemistry and Society
    2. History of Chemistry, Chemistry and Society
      15398 views
      1.2: Branches of Chemistry (Practice Test)
      Physical Chemistry
    1. Physical Chemistry
      16102 views
      2. Organic and Inorganic Chemistry
    2. Organic and Inorganic Chemistry
      31175 views
      3. Biochemistry and Analytical Chemistry
    3. Biochemistry and Analytical Chemistry
      9451 views
      4. Industrial and Nuclear Chemistry
    4. Industrial and Nuclear Chemistry
      5939 views
      5. Environmental Chemistry and Polymeric Chemistry
    5. Environmental Chemistry and Polymeric Chemistry
      6312 views
      1.3: Basic Definitions (Practice Test)
      Element
    1. Element
      11039 views
      2. Compound
    2. Compound
      7437 views
      3. Mixture
    3. Mixture
      6368 views
      4. Atomic Number and Mass Number
    4. Atomic Number and Mass Number
      7401 views
      5. Relative Atomic Mass and Atomic Mass Unit
    5. Relative Atomic Mass and Atomic Mass Unit
      16670 views
      6. Calculating the Average Atomic Mass
    6. Calculating the Average Atomic Mass
      6716 views
      7. Empirical Formula
    7. Empirical Formula
      13953 views
      8. Empirical Formula-Covalent and Ionic Compound
    8. Empirical Formula-Covalent and Ionic Compound
      8479 views
      9. Molecular Formula
    9. Molecular Formula
      11052 views
      10. Molecular Mass
    10. Molecular Mass
      5563 views
      11. Formula Mass
    11. Formula Mass
      6501 views
      12. Determining Molar Mass and Empirical Formula of Compounds
    12. Determining Molar Mass and Empirical Formula of Compounds
      3091 views
      1.4: Chemical Species (Practice Test)
      Ions, Cations and Anions
    1. Ions, Cations and Anions
      4183 views
      2. Molecular Ion
    2. Molecular Ion
      8846 views
      3. Free Radical
    3. Free Radical
      4728 views
      4. Representative particles
    4. Representative particles
      3712 views
      5. Molecules and its Types
    5. Molecules and its Types
      3795 views
      1.5: Chemical Equation and Balancing of Chemical Equation (Practice Test)
      Chemical Equation and Writing of Chemical Equation
    1. Chemical Equation and Writing of Chemical Equation
      1466 views
      2. Balancing of Chemical Equation
    2. Balancing of Chemical Equation
      3606 views
      3. Balancing the Equations and Identifying Types of Reaction
    3. Balancing the Equations and Identifying Types of Reaction
      1013 views
      1.6: Mole and Avogadro's Number (Practice Test)
      Gram Atomic Mass, Gram Molecular Mass, Gram Formula Mass
    1. Gram Atomic Mass, Gram Molecular Mass, Gram Formula Mass
      6470 views
      2. Mole
    2. Mole
      32346 views
      3. Avogadro's Number
    3. Avogadro's Number
      18020 views
      4. Calculating Moles from Mass
    4. Calculating Moles from Mass
      11089 views
      5. Calculating Mass from Moles
    5. Calculating Mass from Moles
      7590 views
      6. Calculating Mass in Grams and Moles
    6. Calculating Mass in Grams and Moles
      7583 views
      7. Mole-Particle Calculations
    7. Mole-Particle Calculations
      6535 views
      8. More on Mole-Particle Calculations
    8. More on Mole-Particle Calculations
      3514 views

    Chapter 2 Atomic Structure ( 24 videos)  (Practice Test)

      2.1: Discovery of Sub Atomic Particles of an Atom (Practice Test)
      Dalton's Atomic Theory
    1. Dalton's Atomic Theory
      11217 views
      2. Discovery of Electron (Cathode Rays)
    2. Discovery of Electron (Cathode Rays)
      57392 views
      3. Properties of Cathode Rays
    3. Properties of Cathode Rays
      19273 views
      4. Discovery of protron (positive rays)
    4. Discovery of protron (positive rays)
      76940 views
      5. Properties of Positive rays
    5. Properties of Positive rays
      11665 views
      6. Discovery of Neutron
    6. Discovery of Neutron
      26494 views
      7. Properties of Neutron
    7. Properties of Neutron
      8357 views
      8. Atomic Number and Mass Number
    8. Atomic Number and Mass Number
      7401 views
      2.2: Theories and Experiments Related to Atomic Structure (Practice Test)
      Rutherford's Atomic Model
    1. Rutherford's Atomic Model
      22654 views
      2. Advantages and Defects in Rutherford's Atomic Model
    2. Advantages and Defects in Rutherford's Atomic Model
      12554 views
      3. Bohr's Atomic Theory
    3. Bohr's Atomic Theory
      18709 views
      2.3: Modern Theories of Atomic Structure (Practice Test)
      Dual Nature of Matter
    1. Dual Nature of Matter
      6146 views
      2. More on Dual Nature of Matter
    2. More on Dual Nature of Matter
      1475 views
      3. Experimental Verification of Dual Nature of Matter
    3. Experimental Verification of Dual Nature of Matter
      2416 views
      4. Calculation of De-Broglie's Wavelength
    4. Calculation of De-Broglie's Wavelength
      2295 views
      2.4: Electronic Configuration (Practice Test)
      Electronic Configuration
    1. Electronic Configuration
      13322 views
      2. More on Electronic Configuration
    2. More on Electronic Configuration
      7168 views
      3. Give Name and Symbol for the Elements
    3. Give Name and Symbol for the Elements
      4090 views
      4. Electronic Configuration of Different Species
    4. Electronic Configuration of Different Species
      3186 views
      5. Distribution of Electrons in Shell
    5. Distribution of Electrons in Shell
      660 views
      6. More on Distribution of Electrons in Shell
    6. More on Distribution of Electrons in Shell
      133 views
      2.5: Isotopes and Their Common Application (Practice Test)
      Isotopes
    1. Isotopes
      11479 views
      2. Isotopes of Carbon, Chlorine and Uranium
    2. Isotopes of Carbon, Chlorine and Uranium
      4023 views
      3. Uses of Isotopes
    3. Uses of Isotopes
      10948 views

    Chapter 3 Periodic Table and Periodicity of Properties ( 19 videos)  (Practice Test)

      3.1: Perodic Table (Practice Test)
      Atom and its Structure
    1. Atom and its Structure
      12165 views
      2. Introduction to Periodic Law And Periodic Table
    2. Introduction to Periodic Law And Periodic Table
      14803 views
      3. Dobereiner's Triads Classification
    3. Dobereiner's Triads Classification
      14856 views
      4. Newland's Octaves Law
    4. Newland's Octaves Law
      12045 views
      5. Mendeleev's Periodic Table
    5. Mendeleev's Periodic Table
      12771 views
      6. Modern Periodic Table
    6. Modern Periodic Table
      15946 views
      7. Periods in Modern Periodic Table
    7. Periods in Modern Periodic Table
      11219 views
      8. Groups in Modern Periodic Table
    8. Groups in Modern Periodic Table
      14467 views
      9. Comparison between Mendeleev's and Modern Periodic Tables
    9. Comparison between Mendeleev's and Modern Periodic Tables
      3235 views
      3.2: Periodicity of Properties (Practice Test)
      Atomic Size and Atomic Radius
    1. Atomic Size and Atomic Radius
      14240 views
      2. Trend of Atomic Radius in Periodic Table
    2. Trend of Atomic Radius in Periodic Table
      27707 views
      3. Shielding Effect
    3. Shielding Effect
      16588 views
      4. Trend of Shielding Effect in Periodic Table
    4. Trend of Shielding Effect in Periodic Table
      5191 views
      5. Ionization Energy
    5. Ionization Energy
      10144 views
      6. Trend of Ionization Energy in Periodic Table
    6. Trend of Ionization Energy in Periodic Table
      14213 views
      7. Electron Affinity
    7. Electron Affinity
      8741 views
      8. Trend of Electron Affinity in Periodic Table
    8. Trend of Electron Affinity in Periodic Table
      5145 views
      9. Electronegativity
    9. Electronegativity
      5941 views
      10. Trend of Electronegativity in Periodic Table
    10. Trend of Electronegativity in Periodic Table
      3354 views

    Chapter 4 Structure of Molecules ( 22 videos)  (Practice Test)

      4.1: Why do Atoms Form Chemical Bonds?
      Why do Atoms Form Chemical Bonds?
    1. Why do Atoms Form Chemical Bonds?
      14190 views
      4.2: Formation of Chemical Bond
      Chemical Bond
    1. Chemical Bond
      10646 views
      4.3: Types of Chemical Bond (Practice Test)
      Ionic Bond
    1. Ionic Bond
      12605 views
      2. More on Ionic Bond
    2. More on Ionic Bond
      2401 views
      3. Covalent Bond
    3. Covalent Bond
      9028 views
      4. Types of Covalent Bonds
    4. Types of Covalent Bonds
      6542 views
      5. Single Covalent Bond
    5. Single Covalent Bond
      5587 views
      6. Double Covalent Bond
    6. Double Covalent Bond
      4669 views
      7. Triple Covalent Bond
    7. Triple Covalent Bond
      4585 views
      8. Dative Covalent Bond or Co-ordinate Covalent Bond
    8. Dative Covalent Bond or Co-ordinate Covalent Bond
      11277 views
      9. Polar Covalent Bond
    9. Polar Covalent Bond
      7010 views
      10. Non polar Covalent Bond
    10. Non polar Covalent Bond
      5689 views
      11. Metallic Bond
    11. Metallic Bond
      9117 views
      12. Classify Bonds as Ionic or Covalent
    12. Classify Bonds as Ionic or Covalent
      1966 views
      13. Drawing Lewis Dot and Cross Structures
    13. Drawing Lewis Dot and Cross Structures
      2489 views
      4.4: Intermolecular Forces (Practice Test)
      Intermolecular Forces
    1. Intermolecular Forces
      13002 views
      2. Dipole-Dipole Forces
    2. Dipole-Dipole Forces
      22680 views
      3. Hydrogen Bonding
    3. Hydrogen Bonding
      16302 views
      4.5: Nature of Bonding and Properties (Practice Test)
      Properties of Ionic Compounds
    1. Properties of Ionic Compounds
      6118 views
      2. Properties of Covalent Compounds
    2. Properties of Covalent Compounds
      4346 views
      3. Properties of Co-ordinate Covalent Compounds
    3. Properties of Co-ordinate Covalent Compounds
      2308 views
      4. Properties of Metals
    4. Properties of Metals
      4009 views

    Chapter 5 Physical States of Matter ( 25 videos)  (Practice Test)

      5.1: Gaseous State and Typical Properties (Practice Test)
      Common States of Matter (Solid, Liquid, Gas, Plasma)
    1. Common States of Matter (Solid, Liquid, Gas, Plasma)
      5774 views
      2. Interconversion of Three States of Matter
    2. Interconversion of Three States of Matter
      1901 views
      3. Diffusion and Effusion in Gases
    3. Diffusion and Effusion in Gases
      14761 views
      4. Pressure and Standard Atmospheric Pressure
    4. Pressure and Standard Atmospheric Pressure
      10827 views
      5. Compressibility, Mobility and Density of Gases
    5. Compressibility, Mobility and Density of Gases
      5546 views
      5.2: Laws Related to Gases (Practice Test)
      Boyle's Law of Gases
    1. Boyle's Law of Gases
      10840 views
      2. Experimental Verification of Boyle's Law
    2. Experimental Verification of Boyle's Law
      9591 views
      3. Charles's Law
    3. Charles's Law
      11010 views
      4. Experimental Verification of Charles' Law
    4. Experimental Verification of Charles' Law
      6915 views
      5. Intermolecular Forces
    5. Intermolecular Forces
      13002 views
      6. Conversion of Units
    6. Conversion of Units
      1748 views
      7. Calculation of Volume of a Gas from Gas Laws
    7. Calculation of Volume of a Gas from Gas Laws
      1141 views
      8. Calculate Pressure from Gas Laws
    8. Calculate Pressure from Gas Laws
      894 views
      5.3: Liquid State (Practice Test)
      Evaporation in Liquids and its Uses
    1. Evaporation in Liquids and its Uses
      7079 views
      2. Evaporation
    2. Evaporation
      4143 views
      3. Vapour Pressure
    3. Vapour Pressure
      8063 views
      4. Boiling Points of Liquids
    4. Boiling Points of Liquids
      7380 views
      5. Density and Freezing Points of Liquids
    5. Density and Freezing Points of Liquids
      1354 views
      6. Diffusion in Liquids
    6. Diffusion in Liquids
      3260 views
      5.4: Solid State (Practice Test)
      Rigidity and Melting Point of Solids
    1. Rigidity and Melting Point of Solids
      3147 views
      2. Density in Solids
    2. Density in Solids
      2487 views
      5.5: Types of Solids
      Amorphous Solids
    1. Amorphous Solids
      8167 views
      2. Crystalline Solids
    2. Crystalline Solids
      9069 views
      5.6: Allotropy
      Concept of Allotropy
    1. Concept of Allotropy
      7697 views
      5.7: Plasma State
      Plasma
    1. Plasma
      3727 views

    Chapter 6 Solutions ( 21 videos)  (Practice Test)

      6.1: Solution, Aqueous Solution, Solute and Solvent (Practice Test)
      Introduction to Solutions
    1. Introduction to Solutions
      9101 views
      6.2: Saturated, Unsaturated, Supersaturated Solutions and Dilution of Solution (Practice Test)
      Types of Solutions on the Basis of Concentration
    1. Types of Solutions on the Basis of Concentration
      6379 views
      2. Crystallization
    2. Crystallization
      2675 views
      6.3: Types of Solutions (Practice Test)
      Types of Solutions on the Basis of Physical States
    1. Types of Solutions on the Basis of Physical States
      7216 views
      6.4: Concentration Units (Practice Test)
      Concentration Units
    1. Concentration Units
      4906 views
      2. Percentage Mass/Mass
    2. Percentage Mass/Mass
      6518 views
      3. Percentage Mass/Volume
    3. Percentage Mass/Volume
      5106 views
      4. Percentage Volume/Mass
    4. Percentage Volume/Mass
      3978 views
      5. Percentage Volume/Volume
    5. Percentage Volume/Volume
      3822 views
      6. Molarity and Preparation of Molar Solution
    6. Molarity and Preparation of Molar Solution
      7927 views
      7. Determining Molarity from Percentage by Mass of Solution
    7. Determining Molarity from Percentage by Mass of Solution
      2469 views
      8. Dilution of Solution
    8. Dilution of Solution
      659 views
      9. Calculations of Dilution of Solution
    9. Calculations of Dilution of Solution
      1896 views
      6.5: Solubility (Practice Test)
      Introduction to Solubility
    1. Introduction to Solubility
      8696 views
      2. Solubility and Solute-Solvent Interactions
    2. Solubility and Solute-Solvent Interactions
      8133 views
      3. Solubility and Nature of Solute
    3. Solubility and Nature of Solute
      2618 views
      4. Solubility and Nature of Solvent
    4. Solubility and Nature of Solvent
      2006 views
      5. The Effect of Temperature
    5. The Effect of Temperature
      5003 views
      6.6: Comparison of Solution, Suspension and Colloids (Practice Test)
      Comparison of Solution, Suspension and Colloid
    1. Comparison of Solution, Suspension and Colloid
      5716 views
      2. Colloids
    2. Colloids
      2997 views
      3. Suspensions
    3. Suspensions
      1073 views

    Chapter 7 Electrochemistry ( 25 videos)  (Practice Test)

      7.1: Oxidation and Reduction Reactions (Practice Test)
      Introduction to Electrochemistry
    1. Introduction to Electrochemistry
      14155 views
      2. Oxidation and Reduction in Terms of Loss and Gain of Electron
    2. Oxidation and Reduction in Terms of Loss and Gain of Electron
      9230 views
      3. Oxidation and Reduction in Terms of Loss and Gain of Oxygen
    3. Oxidation and Reduction in Terms of Loss and Gain of Oxygen
      4533 views
      4. Oxidation and Reduction in Terms of Loss and Gain of Hydrogen
    4. Oxidation and Reduction in Terms of Loss and Gain of Hydrogen
      3301 views
      7.2: Electrochemical Cells (Practice Test)
      Concepts of Electrolytes
    1. Concepts of Electrolytes
      7997 views
      2. Electrolytic cells
    2. Electrolytic cells
      7932 views
      3. Construction of an Electrolytic cell
    3. Construction of an Electrolytic cell
      3889 views
      4. Working of Electrolytic cell
    4. Working of Electrolytic cell
      4206 views
      5. Faraday's First Law of Electrolysis
    5. Faraday's First Law of Electrolysis
      14980 views
      6. Faraday's Second Law of Electrolysis
    6. Faraday's Second Law of Electrolysis
      10440 views
      7. Dry Cell
    7. Dry Cell
      3751 views
      8. Lead-Storage Battery
    8. Lead-Storage Battery
      7002 views
      9. Comparison of Electrolytic and Galvanic cell
    9. Comparison of Electrolytic and Galvanic cell
      1141 views
      10. Intoduction to Alloys
    10. Intoduction to Alloys
      1331 views
      11. Bronze
    11. Bronze
      238 views
      12. Brass
    12. Brass
      163 views
      13. Nichrome
    13. Nichrome
      1029 views
      7.7: Corrosion and its Prevention (Practice Test)
      Rusting of Iron
    1. Rusting of Iron
      17285 views
      2. Prevention of Corrosion
    2. Prevention of Corrosion
      5034 views
      3. Electroplating
    3. Electroplating
      2269 views
      4. Electroplating of Tin
    4. Electroplating of Tin
      4100 views
      5. Tin Coating
    5. Tin Coating
      2704 views
      6. Electroplating of Zinc
    6. Electroplating of Zinc
      3164 views
      7. Zinc Coating
    7. Zinc Coating
      1880 views
      8. Chrome Plating
    8. Chrome Plating
      10734 views

    Chapter 8 Chemical Reactivity ( 19 videos)  (Practice Test)

      8.1: Metals (Practice Test)
      Introduction to Chemical Reactivity
    1. Introduction to Chemical Reactivity
      471 views
      2. Metal and its Physical Properties
    2. Metal and its Physical Properties
      4237 views
      3. Chemical Properties of Metals
    3. Chemical Properties of Metals
      1769 views
      4. Electropositive Character of Metals
    4. Electropositive Character of Metals
      5090 views
      5. Electropositivity and Ionization Energy
    5. Electropositivity and Ionization Energy
      2950 views
      6. Physical Properties of Alkali and Alkaline Earth Metals
    6. Physical Properties of Alkali and Alkaline Earth Metals
      7228 views
      7. Chemical Properties of Alkali and Alkaline Earth Metals
    7. Chemical Properties of Alkali and Alkaline Earth Metals
      6355 views
      8. Uses of Sodium
    8. Uses of Sodium
      2954 views
      9. Uses of Calcium and Magnesium
    9. Uses of Calcium and Magnesium
      2460 views
      10. Inertness of Noble Metals
    10. Inertness of Noble Metals
      3384 views
      8.2: Non-metals (Practice Test)
      Physical Properties of Non Metals
    1. Physical Properties of Non Metals
      1691 views
      2. Chemical Properties of Non Metals
    2. Chemical Properties of Non Metals
      2766 views
      3. Comparison of Reactivity of the Halogens
    3. Comparison of Reactivity of the Halogens
      1529 views
      4. Oxidizing Properties of Halogens
    4. Oxidizing Properties of Halogens
      1894 views
      5. Reaction of Non Metals with Hydrogen
    5. Reaction of Non Metals with Hydrogen
      1336 views
      6. Reaction of Non Metals with Water
    6. Reaction of Non Metals with Water
      1520 views
      7. Reaction of Non Metals with Methane
    7. Reaction of Non Metals with Methane
      726 views
      8. Reaction of Non Metals with Sodium Hydroxide
    8. Reaction of Non Metals with Sodium Hydroxide
      728 views
      9. Significance of Non-Metals
    9. Significance of Non-Metals
      1188 views