Chemistry | Class 9

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    Chapter 1 Introduction of Chemistry ( 43 videos)  (Practice Test)

      1.1: Branches of Chemistry (Practice Test)
      Chemistry
    1. Chemistry
      31442 views
      2. Physical Chemistry
    2. Physical Chemistry
      16102 views
      3. Organic and Inorganic Chemistry
    3. Organic and Inorganic Chemistry
      31175 views
      4. Biochemistry and Analytical Chemistry
    4. Biochemistry and Analytical Chemistry
      9451 views
      5. Industrial and Nuclear Chemistry
    5. Industrial and Nuclear Chemistry
      5939 views
      6. Environmental Chemistry and Polymeric Chemistry
    6. Environmental Chemistry and Polymeric Chemistry
      6312 views
      1.2: Basic Definitions (Practice Test)
      Matter
    1. Matter
      7257 views
      2. Substance
    2. Substance
      6859 views
      3. Element
    3. Element
      11039 views
      4. Symbols of Element
    4. Symbols of Element
      655 views
      5. Compound
    5. Compound
      7437 views
      6. Chemical Formula
    6. Chemical Formula
      5891 views
      7. Naming Compounds
    7. Naming Compounds
      96 views
      8. Mixture
    8. Mixture
      6368 views
      9. Comparison of Mixture and Compound
    9. Comparison of Mixture and Compound
      4233 views
      10. Atoms - The Building Blocks of Matter
    10. Atoms - The Building Blocks of Matter
      1037 views
      11. Atomic Number and Mass Number
    11. Atomic Number and Mass Number
      7401 views
      12. Give Name and Symbol for the Elements
    12. Give Name and Symbol for the Elements
      4090 views
      13. Relative Atomic Mass and Atomic Mass Unit
    13. Relative Atomic Mass and Atomic Mass Unit
      16670 views
      14. Average Atomic Masses
    14. Average Atomic Masses
      4441 views
      15. Calculating the Average Atomic Mass
    15. Calculating the Average Atomic Mass
      6716 views
      16. Empirical Formula
    16. Empirical Formula
      13953 views
      17. Empirical Formula-Covalent and Ionic Compound
    17. Empirical Formula-Covalent and Ionic Compound
      8479 views
      18. Molecular Formula
    18. Molecular Formula
      11052 views
      19. Determining Molar Mass and Empirical Formula of Compounds
    19. Determining Molar Mass and Empirical Formula of Compounds
      3091 views
      20. Chemical Formulae of Ionic Compounds
    20. Chemical Formulae of Ionic Compounds
      118 views
      21. Molecular Mass
    21. Molecular Mass
      5563 views
      22. Formula Mass
    22. Formula Mass
      6501 views
      1.3: 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. Molecules and its Types
    4. Molecules and its Types
      3795 views
      1.4: Mole and the Avogadro's Number (Practice Test)
      Mole
    1. Mole
      32346 views
      2. Avogadro's Number
    2. Avogadro's Number
      18020 views
      3. Calculating Moles from Mass
    3. Calculating Moles from Mass
      11089 views
      4. Calculating Mass from Moles
    4. Calculating Mass from Moles
      7590 views
      5. Calculating Mass in Grams and Moles
    5. Calculating Mass in Grams and Moles
      7583 views
      6. Mole-Mass Calculations
    6. Mole-Mass Calculations
      10808 views
      7. Mole-Particle Calculations
    7. Mole-Particle Calculations
      6535 views
      8. Calculating Mass in Grams of a Single Atom
    8. Calculating Mass in Grams of a Single Atom
      6457 views
      9. Calculating Number of Ions in the Compounds
    9. Calculating Number of Ions in the Compounds
      6764 views
      10. Calculating Number of Particles from Mass
    10. Calculating Number of Particles from Mass
      4824 views
      11. Calculating Mass and Moles of an Element from a Compound
    11. Calculating Mass and Moles of an Element from a Compound
      7020 views

    Chapter 2 Structure of Atoms ( 18 videos)  (Practice Test)

      2.1: Theories and Experiments Related to Atomic Structure (Practice Test)
      Atom and its Structure
    1. Atom and its Structure
      12165 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 Proton
    4. Discovery of Proton
      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. Rutherford's Atomic Model
    8. Rutherford's Atomic Model
      22654 views
      9. Advantages and Defects in Rutherford's Atomic Model
    9. Advantages and Defects in Rutherford's Atomic Model
      12554 views
      10. Bohr's Atomic Theory
    10. Bohr's Atomic Theory
      18709 views
      11. Defects of Bohr's Atomic Model
    11. Defects of Bohr's Atomic Model
      11060 views
      12. More Recent Structure of Atom
    12. More Recent Structure of Atom
      2.2: Electronic Configuration (Practice Test)
      Electronic Configuration
    1. Electronic Configuration
      13322 views
      2. More on Electronic Configuration
    2. More on Electronic Configuration
      7168 views
      3. Electronic Configuration of Different Species
    3. Electronic Configuration of Different Species
      3186 views
      2.3: Isotopes (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 ( 18 videos)  (Practice Test)

      3.1: The Perodic Table (Practice Test)
      Introduction to Periodic Law And Periodic Table
    1. Introduction to Periodic Law And Periodic Table
      14803 views
      2. Dobereiner's Triads Classification
    2. Dobereiner's Triads Classification
      14856 views
      3. Newland's Octaves Law
    3. Newland's Octaves Law
      12045 views
      4. Mendeleev's Periodic Table
    4. Mendeleev's Periodic Table
      12771 views
      5. Modern Periodic Table
    5. Modern Periodic Table
      15946 views
      6. Periods in Modern Periodic Table
    6. Periods in Modern Periodic Table
      11219 views
      7. Groups in Modern Periodic Table
    7. Groups in Modern Periodic Table
      14467 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. Ionization Energy
    3. Ionization Energy
      10144 views
      4. Trend of Ionization Energy in Periodic Table
    4. Trend of Ionization Energy in Periodic Table
      14213 views
      5. Electron Affinity
    5. Electron Affinity
      8741 views
      6. Trend of Electron Affinity in Periodic Table
    6. Trend of Electron Affinity in Periodic Table
      5145 views
      7. Shielding Effect
    7. Shielding Effect
      16588 views
      8. Trend of Shielding Effect in Periodic Table
    8. Trend of Shielding Effect in Periodic Table
      5191 views
      9. Electronegativity
    9. Electronegativity
      5941 views
      10. Trend of Electronegativity in Periodic Table
    10. Trend of Electronegativity in Periodic Table
      3354 views
      11. Electronegativity Difference and Percentage Ionic Character
    11. Electronegativity Difference and Percentage Ionic Character

    Chapter 4 Structure of Molecules ( 21 videos)  (Practice Test)

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

    Chapter 5 Physical States of Matter ( 27 videos)  (Practice Test)

      5.1: The Gaseous State (Practice Test)
      Common States of Matter (Solid, Liquid, Gas, Plasma)
    1. Common States of Matter (Solid, Liquid, Gas, Plasma)
      5774 views
      2. Shape and Volume of Gases
    2. Shape and Volume of Gases
      5044 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. Conversion of Units
    5. Conversion of Units
      1748 views
      6. Compressibility, Mobility and Density of Gases
    6. 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. Graphical Explanation of Boyle's Law
    3. Graphical Explanation of Boyle's Law
      15727 views
      4. Charles's Law
    4. Charles's Law
      11010 views
      5. Experimental Verification of Charles' Law
    5. Experimental Verification of Charles' Law
      6915 views
      6. Graphical Explanation of Charles' Law
    6. Graphical Explanation of Charles' Law
      11236 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: The Liquid State (Practice Test)
      Shape and Volume of Liquids
    1. Shape and Volume of Liquids
      3996 views
      2. Compressibility and Ease of Flow of Liquids
    2. Compressibility and Ease of Flow of Liquids
      3178 views
      3. Evaporation in Liquids and its Uses
    3. Evaporation in Liquids and its Uses
      7079 views
      4. Vapour Pressure of Liquids
    4. Vapour Pressure of Liquids
      8063 views
      5. Boiling Points of Liquids
    5. Boiling Points of Liquids
      7380 views
      6. Diffusion in Liquids
    6. Diffusion in Liquids
      3260 views
      7. Density and Freezing Points of Liquids
    7. Density and Freezing Points of Liquids
      1354 views
      5.4: The 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 (Practice Test)
      Concept of Allotropy
    1. Concept of Allotropy
      7697 views
      2. Allotropy and Allotropic Forms of Carbon
    2. Allotropy and Allotropic Forms of Carbon
      5677 views

    Chapter 6 Solutions ( 21 videos)  (Practice Test)

      6.1: Solutions (Practice Test)
      Introduction to Solutions
    1. Introduction to Solutions
      9101 views
      6.2: Saturated, Unsaturated and Supersaturated Solutions
      Types of Solutions on the Basis of Concentration
    1. Types of Solutions on the Basis of Concentration
      6379 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
      6.5: Dilution of Solutions (Practice Test)
      Dilution of Solution
    1. Dilution of Solution
      659 views
      2. Calculating Molarity of a Solution
    2. Calculating Molarity of a Solution
      3022 views
      3. Calculating Molality of a Solution
    3. Calculating Molality of a Solution
      1075 views
      4. Calculations of Dilution of Solution
    4. Calculations of Dilution of Solution
      1896 views
      5. Calculation of Volume from Neutralisation Reactions
    5. Calculation of Volume from Neutralisation Reactions
      905 views
      6.6: 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. The Effect of Temperature
    3. The Effect of Temperature
      5003 views
      6.7: Comparison of Solution, Suspensions and Colloids (Practice Test)
      Colloids
    1. Colloids
      2997 views
      2. Suspensions
    2. Suspensions
      1073 views
      3. Comparison of Solution, Suspension and Colloid
    3. Comparison of Solution, Suspension and Colloid
      5716 views

    Chapter 7 Electrochemistry ( 30 videos)  (Practice Test)

      7.1: Oxidation and Reduction (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: Oxidation Number/State and Rules for Assigning Oxidation Numbers
      Oxidation State and Rules for Assigning Oxidation State
    1. Oxidation State and Rules for Assigning Oxidation State
      10259 views
      2. Finding out the Oxidation Numbers
    2. Finding out the Oxidation Numbers
      9889 views
      7.3: Oxidizing and Reducing Agents
      Oxidizing and Reducing Agents
    1. Oxidizing and Reducing Agents
      6716 views
      7.4: The Oxidation-Reduction Reactions (Redox Reaction)
      Oxidation and Reduction Reactions
    1. Oxidation and Reduction Reactions
      7915 views
      2. Identifying Substances Which are Oxidized or Reduced
    2. Identifying Substances Which are Oxidized or Reduced
      9238 views
      3. Identifying Oxidizing and Reducing Agents from the Reactions
    3. Identifying Oxidizing and Reducing Agents from the Reactions
      10754 views
      7.5: The Electrochemical Cell (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. Galvanic Cell and its construction
    5. Galvanic Cell and its construction
      16981 views
      6. Working of the Cell
    6. Working of the Cell
      5637 views
      7. Comparison of Electrolytic and Galvanic cell
    7. Comparison of Electrolytic and Galvanic cell
      1141 views
      7.6: Electrochemical Industries (Practice Test)
      Dry Cell
    1. Dry Cell
      3751 views
      2. Lead-Storage Battery
    2. Lead-Storage Battery
      7002 views
      3. Electrolysis of Sodium Chloride
    3. Electrolysis of Sodium Chloride
      18966 views
      4. Manufacture of NaOH from Brine
    4. Manufacture of NaOH from Brine
      22474 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. Zinc Coating
    3. Zinc Coating
      1880 views
      4. Tin Coating
    4. Tin Coating
      2704 views
      7.8: The Electroplating Process (Practice Test)
      Electroplating
    1. Electroplating
      2269 views
      2. Electroplating of Tin
    2. Electroplating of Tin
      4100 views
      3. Electroplating of Zinc
    3. Electroplating of Zinc
      3164 views
      4. Silver Plating
    4. Silver Plating
      4221 views
      5. Chrome Plating
    5. Chrome Plating
      10734 views

    Chapter 8 Chemical Reactivity ( 12 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. Electropositive Character of Metals
    3. Electropositive Character of Metals
      5090 views
      4. Physical Properties of Alkali and Alkaline Earth Metals
    4. Physical Properties of Alkali and Alkaline Earth Metals
      7228 views
      5. Chemical Properties of Alkali and Alkaline Earth Metals
    5. Chemical Properties of Alkali and Alkaline Earth Metals
      6355 views
      6. Inertness of Noble Metals
    6. 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. Electronegative Character
    2. Electronegative Character
      942 views
      3. Comparison of Reactivity of the Halogens
    3. Comparison of Reactivity of the Halogens
      1529 views
      4. Reaction of Non Metals with Hydrogen
    4. Reaction of Non Metals with Hydrogen
      1336 views
      5. Reaction of Non Metals with Water
    5. Reaction of Non Metals with Water
      1520 views
      6. Reaction of Non Metals with Sodium Hydroxide
    6. Reaction of Non Metals with Sodium Hydroxide
      728 views