Chemistry | Class 9

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    Chapter 1 Fundamentals of Chemistry (44 videos) (Practice Test)

      1.1: Branches 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
      3. Physical Chemistry
    3. Physical Chemistry
      16102 views
      4. Organic and Inorganic Chemistry
    4. Organic and Inorganic Chemistry
      31175 views
      5. Biochemistry and Analytical Chemistry
    5. Biochemistry and Analytical Chemistry
      9451 views
      6. Industrial and Nuclear Chemistry
    6. Industrial and Nuclear Chemistry
      5939 views
      7. Environmental Chemistry and Polymeric Chemistry
    7. 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. Occurrence of Element
    4. Occurrence of Element
      4212 views
      5. Symbols of Element
    5. Symbols of Element
      655 views
      6. Compound
    6. Compound
      7437 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. Separating Solids Using a Magnet
    10. Separating Solids Using a Magnet
      128 views
      11. Atomic Number and Mass Number
    11. Atomic Number and Mass Number
      7401 views
      12. Relative Atomic Mass and Atomic Mass Unit
    12. Relative Atomic Mass and Atomic Mass Unit
      16670 views
      13. Average Atomic Masses
    13. Average Atomic Masses
      4441 views
      14. Calculating the Average Atomic Mass
    14. Calculating the Average Atomic Mass
      6716 views
      15. Chemical Formula
    15. Chemical Formula
      5891 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. Chemical Formulae of Ionic Compounds
    18. Chemical Formulae of Ionic Compounds
      118 views
      19. Molecular Mass
    19. Molecular Mass
      5563 views
      20. Formula Mass
    20. Formula Mass
      6501 views
      21. Determining Molar Mass and Empirical Formula of Compounds
    21. Determining Molar Mass and Empirical Formula of Compounds
      3091 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: Avogadros Number and Mole (Practice Test)
      Avogadro's Number
    1. Avogadro's Number
      18020 views
      2. Mole
    2. Mole
      32346 views
      3. Gram Atomic Mass, Gram Molecular Mass, Gram Formula Mass
    3. Gram Atomic Mass, Gram Molecular Mass, Gram Formula Mass
      6470 views
      1.5: Chemical Calculations (Practice Test)
      Mole-Mass Calculations
    1. Mole-Mass Calculations
      10808 views
      2. Mole-Particle Calculations
    2. Mole-Particle Calculations
      6535 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. Calculating Mass in Grams of a Single Atom
    6. Calculating Mass in Grams of a Single Atom
      6457 views
      7. Calculating Number of Ions in the Compounds
    7. Calculating Number of Ions in the Compounds
      6764 views
      8. Calculating Number of Particles from Mass
    8. Calculating Number of Particles from Mass
      4824 views
      9. Calculating Mass and Moles of an Element from a Compound
    9. Calculating Mass and Moles of an Element from a Compound
      7020 views

    Chapter 2 Structure of Atom (14 videos) (Practice Test)

      2.1: Theories and Experiments Related to Atomic Structure (Practice Test)
      Dalton's Atomic Theory
    1. Dalton's Atomic Theory
      11217 views
      2. Rutherford's Atomic Model
    2. Rutherford's Atomic Model
      22654 views
      3. Advantages and Defects in Rutherford's Atomic Model
    3. Advantages and Defects in Rutherford's Atomic Model
      12554 views
      4. Bohr's Atomic Theory
    4. Bohr's Atomic Theory
      18709 views
      5. Proton, Neutron and Electron
    5. Proton, Neutron and Electron
      1837 views
      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. Distribution of Electrons in Shell
    3. Distribution of Electrons in Shell
      660 views
      4. More on Distribution of Electrons in Shell
    4. More on Distribution of Electrons in Shell
      133 views
      5. Give Name and Symbol for the Elements
    5. Give Name and Symbol for the Elements
      4090 views
      6. Electronic Configuration of Different Species
    6. 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 (15 videos) (Practice Test)

      3.1: Modern Perodic Table (Practice Test)
      Introduction to Periodic Law And Periodic Table
    1. Introduction to Periodic Law And Periodic Table
      14803 views
      2. Modern Periodic Table
    2. Modern Periodic Table
      15946 views
      3. Periods in Modern Periodic Table
    3. Periods in Modern Periodic Table
      11219 views
      4. Groups in Modern Periodic Table
    4. 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. Covalent Radii
    3. Covalent Radii
      4. Ionization Energy
    4. Ionization Energy
      10144 views
      5. Trend of Ionization Energy in Periodic Table
    5. Trend of Ionization Energy in Periodic Table
      14213 views
      6. Electron Affinity
    6. Electron Affinity
      8741 views
      7. Trend of Electron Affinity in Periodic Table
    7. Trend of Electron Affinity in Periodic Table
      5145 views
      8. Shielding Effect
    8. Shielding Effect
      16588 views
      9. Trend of Shielding Effect in Periodic Table
    9. Trend of Shielding Effect in Periodic Table
      5191 views
      10. Electronegativity
    10. Electronegativity
      5941 views
      11. Trend of Electronegativity in Periodic Table
    11. Trend of Electronegativity in Periodic Table
      3354 views

    Chapter 4 Structure of Molecules (24 videos) (Practice Test)

      4.1: Why Do Atoms Form Chemical Bond? (Practice Test)
      Why do Atoms Form Chemical Bonds?
    1. Why do Atoms Form Chemical Bonds?
      14190 views
      2. Valence Bond Theory
    2. Valence Bond Theory
      25465 views
      3. More on Valence Bond Theory
    3. More on Valence Bond Theory
      8712 views
      4.2: Chemical Bond (Practice Test)
      Chemical Bond
    1. Chemical Bond
      10646 views
      4.3: Types of 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. Shapes of Molecules
    11. Shapes of Molecules
      6733 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 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 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 (30 videos) (Practice Test)

      5.1: Typical Properties of Gases (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. Shape and Volume of Gases
    3. Shape and Volume of Gases
      5044 views
      4. Diffusion and Effusion in Gases
    4. Diffusion and Effusion in Gases
      14761 views
      5. Pressure and Standard Atmospheric Pressure
    5. Pressure and Standard Atmospheric Pressure
      10827 views
      6. Conversion of Units
    6. Conversion of Units
      1748 views
      7. Compressibility, Mobility and Density of Gases
    7. 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. Calculation of Volume of a Gas from Gas Laws
    5. Calculation of Volume of a Gas from Gas Laws
      1141 views
      6. Calculate Pressure from Gas Laws
    6. Calculate Pressure from Gas Laws
      894 views
      5.3: Typical Properties of Liquids (Practice Test)
      Shape and Volume of Liquids
    1. Shape and Volume of Liquids
      3996 views
      2. Evaporation in Liquids and its Uses
    2. Evaporation in Liquids and its Uses
      7079 views
      3. Vapour Pressure of Liquids
    3. Vapour Pressure of Liquids
      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
      7. Compressibility and Ease of Flow of Liquids
    7. Compressibility and Ease of Flow of Liquids
      3178 views
      5.4: Typical Properties of Solids (Practice Test)
      Shape and Volume of Solids
    1. Shape and Volume of Solids
      2576 views
      2. Rigidity and Melting Point of Solids
    2. Rigidity and Melting Point of Solids
      3147 views
      3. Density in Solids
    3. Density in Solids
      2487 views
      5.5: Types of Solids (Practice Test)
      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
      3. Diamond
    3. Diamond
      4029 views
      4. Graphite
    4. Graphite
      2309 views
      5. Bucky Balls
    5. Bucky Balls
      5460 views

    Chapter 6 Solutions (26 videos) (Practice Test)

      6.1: Solutions, Aqueous Solution, Solute and Solvent (Practice Test)
      Introduction to Solutions
    1. Introduction to Solutions
      9101 views
      6.2: Saturated, Unsaturated and Super-saturated Solutions (Practice Test)
      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 of Solution (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. Calculating Molarity of a Solution
    8. Calculating Molarity of a Solution
      3022 views
      9. Calculating Molality of a Solution
    9. Calculating Molality of a Solution
      1075 views
      10. Dilution of Solution
    10. Dilution of Solution
      659 views
      11. Calculations of Dilution of Solution
    11. Calculations of Dilution of Solution
      1896 views
      12. Calculation of Volume from Neutralisation Reactions
    12. Calculation of Volume from Neutralisation Reactions
      905 views
      6.5: Solubility (Practice Test)
      Introduction to Solubility
    1. Introduction to Solubility
      8696 views
      2. Solubility and Nature of Solvent
    2. Solubility and Nature of Solvent
      2006 views
      3. Solubility and Nature of Solute
    3. Solubility and Nature of Solute
      2618 views
      4. Solubility and Solute-Solvent Interactions
    4. Solubility and Solute-Solvent Interactions
      8133 views
      5. Solution Formation by Hydrogen Bonding
    5. Solution Formation by Hydrogen Bonding
      427 views
      6. The Effect of Pressure
    6. The Effect of Pressure
      1702 views
      7. The Effect of Temperature
    7. The Effect of Temperature
      5003 views
      6.6: Comparison of Solution, Suspension and Colloids (Practice Test)
      Colloids
    1. Colloids
      2997 views
      2. Types of Colloids
    2. Types of Colloids
      3364 views
      3. Suspensions
    3. Suspensions
      1073 views
      4. Comparison of Solution, Suspension and Colloid
    4. Comparison of Solution, Suspension and Colloid
      5716 views

    Chapter 7 Electrochemistry (31 videos) (Practice Test)

      7.1: Oxidation and Reduction (Practice Test)
      Introduction to Electrochemistry
    1. Introduction to Electrochemistry
      14155 views
      2. Oxidation and Reduction Reactions
    2. Oxidation and Reduction Reactions
      7915 views
      3. Oxidation and Reduction in Terms of Loss and Gain of Electron
    3. Oxidation and Reduction in Terms of Loss and Gain of Electron
      9230 views
      4. Oxidation and Reduction in Terms of Loss and Gain of Oxygen
    4. Oxidation and Reduction in Terms of Loss and Gain of Oxygen
      4533 views
      5. Oxidation and Reduction in Terms of Loss and Gain of Hydrogen
    5. Oxidation and Reduction in Terms of Loss and Gain of Hydrogen
      3301 views
      7.2: Oxidation States and Rules for Assigning Oxidation States (Practice Test)
      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 (Practice Test)
      Oxidizing and Reducing Agents
    1. Oxidizing and Reducing Agents
      6716 views
      7.4: Oxidation Reduction Reactions (Practice Test)
      Oxidation and Reduction in Terms of Loss and Gain of Electron
    1. Oxidation and Reduction in Terms of Loss and Gain of Electron
      9230 views
      2. Oxidation and Reduction in Terms of Loss and Gain of Oxygen
    2. Oxidation and Reduction in Terms of Loss and Gain of Oxygen
      4533 views
      3. Oxidation and Reduction in Terms of Loss and Gain of Hydrogen
    3. Oxidation and Reduction in Terms of Loss and Gain of Hydrogen
      3301 views
      4. Identifying Substances Which are Oxidized or Reduced
    4. Identifying Substances Which are Oxidized or Reduced
      9238 views
      5. Identifying Oxidizing and Reducing Agents from the Reactions
    5. Identifying Oxidizing and Reducing Agents from the Reactions
      10754 views
      7.5: Electrochemical Cell (Practice Test)
      Introduction to Electrolysis
    1. Introduction to Electrolysis
      4837 views
      2. Concepts of Electrolytes
    2. Concepts of Electrolytes
      7997 views
      3. Electrolytic cells
    3. Electrolytic cells
      7932 views
      4. Construction of an Electrolytic cell
    4. Construction of an Electrolytic cell
      3889 views
      5. Working of Electrolytic cell
    5. Working of Electrolytic cell
      4206 views
      6. Electrolytic purification
    6. Electrolytic purification
      565 views
      7. Galvanic Cell and its construction
    7. Galvanic Cell and its construction
      16981 views
      8. Working of the Cell
    8. Working of the Cell
      5637 views
      9. Comparison of Electrolytic and Galvanic cell
    9. Comparison of Electrolytic and Galvanic cell
      1141 views
      10. Dry Cell
    10. Dry Cell
      3751 views
      7.6: Electrochemical Industries (Practice Test)
      Industrial Applications of Electrolysis
    1. Industrial Applications of Electrolysis
      2604 views
      2. Electrolysis of Sodium Chloride
    2. Electrolysis of Sodium Chloride
      18966 views
      3. Manufacture of NaOH from Brine
    3. 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. Electroplating
    3. Electroplating
      2269 views
      4. Electroplating of Tin
    4. Electroplating of Tin
      4100 views
      5. Electroplating of Zinc
    5. Electroplating of Zinc
      3164 views

    Chapter 8 Chemical Reactivity (25 videos) (Practice Test)

      8.1: Metals (Practice Test)
      Metal and its Physical Properties
    1. Metal and its Physical Properties
      4237 views
      2. Electropositive Character of Metals
    2. Electropositive Character of Metals
      5090 views
      3. Physical Properties of Alkali and Alkaline Earth Metals
    3. Physical Properties of Alkali and Alkaline Earth Metals
      7228 views
      4. Chemical Properties of Alkali and Alkaline Earth Metals
    4. Chemical Properties of Alkali and Alkaline Earth Metals
      6355 views
      5. Electropositivity and Ionization Energy
    5. Electropositivity and Ionization Energy
      2950 views
      6. Sodium
    6. Sodium
      405 views
      7. Chemical Properties of Sodium
    7. Chemical Properties of Sodium
      935 views
      8. Uses of Sodium
    8. Uses of Sodium
      2954 views
      9. Magnesium and Calcium
    9. Magnesium and Calcium
      421 views
      10. Chemical Properties of Magnesium and Calcium
    10. Chemical Properties of Magnesium and Calcium
      770 views
      11. Uses of Calcium and Magnesium
    11. Uses of Calcium and Magnesium
      2460 views
      12. Soft and Hard Metals
    12. Soft and Hard Metals
      1143 views
      13. Inertness of Noble Metals
    13. 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. Physical Differences Between Metals and Non-Metals
    3. Physical Differences Between Metals and Non-Metals
      1432 views
      4. Chemical Differences Between Metals and Non-Metals
    4. Chemical Differences Between Metals and Non-Metals
      1082 views
      5. Electronegative Character
    5. Electronegative Character
      942 views
      6. Occurrence of Halogens
    6. Occurrence of Halogens
      1303 views
      7. The Halogens
    7. The Halogens
      1194 views
      8. Comparison of Reactivity of the Halogens
    8. Comparison of Reactivity of the Halogens
      1529 views
      9. Reaction of Non Metals with Hydrogen
    9. Reaction of Non Metals with Hydrogen
      1336 views
      10. Reaction of Halogens with Oxygen
    10. Reaction of Halogens with Oxygen
      683 views
      11. Reaction of Chlorine with Non-Metals
    11. Reaction of Chlorine with Non-Metals
      861 views
      12. Reaction of Halogens with Other Compounds
    12. Reaction of Halogens with Other Compounds
      312 views