CISCE ICSE Class 9 Chemistry Syllabus - Free PDF Download
CISCE Syllabus 2025-26 ICSE Class 9: The CISCE ICSE Class 9 Chemistry Syllabus for the examination year 2025-26 has been released by the Council for the Indian School Certificate Examinations, CISCE. The board will hold the final examination at the end of the year following the annual assessment scheme, which has led to the release of the syllabus. The 2025-26 CISCE ICSE Class 9 Chemistry Board Exam will entirely be based on the most recent syllabus. Therefore, students must thoroughly understand the new CISCE syllabus to prepare for their annual exam properly.
The detailed CISCE ICSE Class 9 Chemistry Syllabus for 2025-26 is below.
Academic year:
CISCE ICSE Class 9 Chemistry Revised Syllabus
CISCE ICSE Class 9 Chemistry and their Unit wise marks distribution
CISCE ICSE Class 9 Chemistry Course Structure 2025-26 With Marking Scheme
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Syllabus
1 The Language of Chemistry
- Matter (Substance)
- Experiment 1
- Experiment 2
- Experiment 3
- Experiment 4
- Substance (Matter)
- Physical Nature of matter
- Chemical properties
- Molecules
- Molecule
- Properties of molecule
- Pure Substances
- Pure substance
- Characteristics of Pure substance
- Examples of Pure Substance
- Elements
- Experiment
- Elements
- Classification of Molecules
- Symbols Used to Represent Atoms of Different Elements
- Periodic Properties
- Valency
- Valency Rules and Formula Formation
- Valency and Electronic Configuration
- Types and Trends in Valency
- Methods to Determine the Valency of an Element
- Valency
- Variable Valency
- Ions (Radicals) and Its Types
- Radicals
- Formation of Radicals
- Types of Radicals
- Chemical Formula or Molecular Formula
- Chemical formulae of compounds : A recapitulation
- Naming Chemical Compounds
- To Calculate the Valency from the Formula
- Chemical Equation
- Introduction
- Writing a Chemical Equation
- Experiment
- Balancing Chemical Equation
- Introduction
- Steps to Balance a Chemical Equation (Hit-and-Trial Method)
- Atomic Mass
- Introduction of Atomic Mass
- Properties of Mass Number
- Determination of Relative Atomic Mass
- Molecular Mass
- Percentage Composition, Empirical and Molecular Formula
- Percentage composition
- Chemical formula
1) Empirical formula
2) Molecular formula - Steps involved in determining the empirical formula
- Steps for determination of the molecular formula of a compound
- Empirical Formula of a Compound
- Hydrogen
- Hydrogen
- Discovery of Hydrogen
- Occurrence of Hydrogen
2 Chemical Changes and Reactions
- Chemical Reaction
- Introduction
- Types of Chemical Reaction
- Experiment
- Conditions Necessary for Chemical Reactions
- How will you know that a chemical change has taken place?
- Close contact
- Attraction in the physical state of the reactants (through the solution)
- Heat energy
- Light energy
- Electricity
- Pressure
- Catalysts: Positive catalyst and Negative catalyst
- Types of Chemical Change or Chemical Reaction
- Direct Combination (or Synthesis) Reaction
- Introduction
- Experiment
- Decomposition Reactions
- Introduction
- Experiment
- Single Displacement Reactions
- Introduction
- Experiment
- Double Displacement Reaction
- Introduction
- Experiment
- Direct Combination (or Synthesis) Reaction
- Energy Change in Chemical Reactions
- Endothermic Reactions
- Exothermic Reactions
- Experiment
3 Water
- Water: Our Lifeline
- Introduction
- Importance of Water for Sustaining Life
- Physical Properties of Water
- Physical Properties of Water:
- Nature
- Boiling point
- The freezing point of water or melting point of ice
- Density
- Anomalous expansion of water
- Latent heat of fusion of ice
- Latent heat of vaporization of water
- Specific heat capacity
- Chemical Properties of Water
- Chemical properties
- Dissociation of water
- Amphoteric nature
- Oxidising and reducing nature
- Hydrolytic reactions
- Formation of hydrates with metal salts
- Water - a Universal Solvent
- Universal Solvent
- Experiment: To show that ordinary tap water contains dissolved solids.
- Importance of dissolved salts in water.
- Air dissolved in water.
- Experiment: To show that tap water contains dissolved gases (air).
- Importance of air dissolved in water.
- Solutions as 'Mixtures' of Solids in Water
- Homogeneous mixture
- Solution
- Solute
- Solvent
- Binary solution
- Ternary solutions
- Quaternary solutions
- Homogeneous solution
- Solid solution
- True solution
- Characteristics of a true solution
- Components of Solutions
- Different Types of Solutions
- Different Types of Solutions:
- Supersaturated solution
- Unsaturated solution
- Saturated solution
- Aqueous solution
- Non-aqueous solution
- Dilute solution
- Concentrated solution
- Saturated Solutions
- What is a Saturated Solution?
- How to Prepare a Saturated Solution?
- Factors affecting the Point of Saturation
- Effect of cooling and heating of Saturation
- Everyday Examples of Saturated Solution
- Concentration of a Solution
- Reactions in solutions
- Mass percentage
- Mole fraction
- Molarity
- Molality
- Volume percentage
- Solubility
- Solubility
- Factors affecting solubility
- Nature of the solute and solvent
- Effect of Temperature
- Effect of Pressure
- Solubility curves can be used
- Determination of the solubility of a solute at a particular temperature
- Effect of pressure and temperature on solubility of gases in water (liquids)
- Crystals and Crystallisation
- Crystals
- Crystallisation
- Experiment: To prepare large crystals of copper sulphate.
- Hydrated and Anhydrous Substances
- Efflorescence, Hygroscopic, and Deliquescence Substances
- Efflorescence
- Deliquescence
- Hygroscopy
- Drying and Dehydrous Substances
- Classification of water: Soft and Hard Water
- Soft and Hard water
- Types of Hard water
- Temporary Hardness
- Permanent Hardness
- Causes of Hardness
- Advantage and Disadvantage of Hard Water
- Removal of Hardness of Water
- Softening of water
- Removal of temporary hardness
a) By boiling
b) Clark's method - Removal of permanent hardness
a) By washing soda method
b) lon-exchange/Permutit method
c) Calgon method
d) Synthetic resins method
⇒ Ion exchange resins are of two types
i) Cation exchange resins
ii) Anion exchange resins
- Degree of hardness of water
- Salts
- Introduction of Salts
- Family of Salts
- pH Value of a Salt
- Prevention of Water Pollution
4 Atomic Structure and Chemical Bonding
- Chemical Bond
- Introduction
- Kossel-Lewis Approach to Chemical Bonds
- Lewis Dot Structure
- History of Atom
- Dalton’s Atomic Theory
- Introduction
- Dalton’s Atomic Theory
- Merits and Demerits
- Activity
- Elements
- Experiment
- Elements
- Atoms: Building Blocks of Matter
- Introduction of Atom
- Discovery of Charged Particles and the Structure of an Atom
- Discovery of Charged Particles in Matter
- Cathode Ray Tube (CRT) experiment
- Electrons (e)
- Electrons
- Discovery of Electrons
- Properties of Cathode rays
- Charge to Mass Ratio of Electron
- Charge on the Electron
- Protons (p)
- Protons
- Discovery of Protons
- Properties of Anode rays
- Nucleus
- Discovery of Nucleus
- Deflection of α-particle by a gold leaf
- Neutrons (n)
- Neutrons
- Discovery of Neutrons
- Properties of Neutrons
- J. J. Thomson’s Atomic Model
- Discovery of Electrons
- Thomson’s Plum Pudding Model of the Atom
- Merits and Demerits
- Lord Rutherford’s Atomic model
- Introduction
- Rutherford’s Nuclear atomic model
- Merits and Demerits
- Neils Bohr’s Model of an Atom
- Introduction
- Bohr’s stable orbit atomic model
- Merits and Demerits
- Structure of an Atom
- Atomic Number (Z), Mass Number (A), and Number of Neutrons (n)
- Atomic number or Nuclear charge
- Nucleons
- Mass number
- Relationship between atomic number and mass number
- Representation of element
- Number of Neutrons (n)
- Atomic Mass
- Introduction of Atomic Mass
- Properties of Mass Number
- Determination of Relative Atomic Mass
- Electronic Configuration of Atom
- Periodic Properties
- Valency
- Valency Rules and Formula Formation
- Valency and Electronic Configuration
- Types and Trends in Valency
- Methods to Determine the Valency of an Element
- Valency
- Reason for Chemical Activity of an Atom
- Isotopes
- Introduction of Isotopes
- Applications of Isotopes
- Isobars
- Introduction
- Example of Isobars
- Characteristics of Isobars
- Ionic or Electrovalent Bond
- Ionic bond or Electrovalent bond
- Mechanism of formation of ionic bond
- Lattice enthalpy
- Factors affecting the formation of an ionic bond
i) Low ionization enthalpy
ii) High negative electron gain enthalpy
iii) Large lattice enthalpy - Characteristics of ionic or electrovalent compounds
- Difference between ionic bond and covalent bond
- Covalent character in ionic bond
- Fajan's rules
- The Covalent Bond
- Introduction of Covalent Bond
- Formation of Covalent Bonds
- Properties of Covalent Compounds
- Types of Covalent Bond
- Types of Covalent Bond
- Single Covalent Bond
- Double Covalent Bond
- Triple Bond
- Formation of Covalent Bond
- Formation of Covalent Bond:
- Hydrogen molecule (Non-polar compound)
- Chlorine molecule (Non-polar compound)
- Oxygen molecule (non-polar compound)
- Nitrogen molecule (Non-polar compound)
- Hydrogen chloride (polar compound)
- Water molecule (polar compound)
- Ammonia molecule (polar compound)
- Carbon tetrachloride molecule (Non-polar compound)
- Methane molecule (Non-polar compound)
5 The Periodic Table
- History of Periodic Table: Early Attempts at the Classification of Elements
- Dobereiner’s Triads
- Introduction
- Limitations
- Newland's Law of Octaves
- Introduction
- Limitations
- Mendeleev’s Periodic Table
- Introduction
- Structure and Property
- Merits and Demerits of Mendeleev’s Periodic Table
- Merits
- Demerits
- Modern Periodic Law
- The Modern Periodic Table
- Structure of the Modern Periodic Table
- Advantage and Disadvantage of Modern Periodic Table
- Periodic Properties
- Introduction
- Periodic Trends
- Shells (Orbits)
- Valency
- Valency Rules and Formula Formation
- Valency and Electronic Configuration
- Types and Trends in Valency
- Methods to Determine the Valency of an Element
- Properties of Elements
- Atomic Radius Or Atomic Size
- Introduction
- Periodic Trends in Atomic Size
- Metallic and Non-metallic Characters
- Study of Specific Groups in Periodic Table
- Group I (Alkali Metals)
- Group II (Alkaline Earth Metals)
- Group VIIA Or Group 17 (The Halogens)
- Group Zero or 18 Group (Noble Gases)
- Uses of Periodic Table
- Types of Element: Metals
- Introduction
- General Properties of Metals
- Experiment
6 Study of the First Element - Hydrogen
- Position of Hydrogen in Periodic Table
- Similarities Between Hydrogen and Alkali Metals
- Similarities Between Hydrogen and Halogens
- Hydrogen
- Hydrogen
- Discovery of Hydrogen
- Occurrence of Hydrogen
- Preparation of Hydrogen
- Application of Activity Series in the Preparation of Hydrogen
- Displacement of hydrogen from dilute acids
- Displacement of hydrogen from alkalis
- Laboratory Preparation of Hydrogen
- Manufacture of Hydrogen
- Manufacture of Hydrogen
- Bosch process
- By electrolysis of water
- Physical Properties of Hydrogen
- Chemical Properties of Hydrogen
- Uses of Hydrogen
- Oxidation, Reduction and Redox Reactions
- Oxidation
- Reduction
- Redox Reactions (Reduction + Oxidation)
- Oxidising & Reducing Agents
7 Study of Gas Laws
- Gases and Its Characteristics
- Gases
- Behaviour and characteristic properties of gases
- Composition of gases
- Gases have neither a fixed volume nor a fixed shape
- Gases exert pressure in all directions
- Gases are highly compressible
- Gases are highly expansible
- Gases have low density
- Gases have a natural tendency to mix with one another (diffusion)
- Gases can be liquefied
- Molecular Motion : Relationship of Temperature, Pressure and Volume
- The Gas Laws
- The Gas Laws
- Standard variables for gas laws
- The volume (V)
- The pressure (P)
- The temperature (T)
- Fundamental Laws of Gases
- Pressure and Volume Relationship or Bolye's Law
- Boyle's law
- Mathematical expression of Boyle's law
- Graphical verification of Boyle's law
- Explanation of Boyle's law in terms of molecular motion (kinetic theory).
- Significance of Boyle's Law
- Experiment of Pressure and Volume relationship in gases
- Temperature - Volume Relationship or Charles's Law
- Charle's Law
- Mathematical expression of Charles's Law
- Graphical representation of Charle's law
- Significance of Charle's Law
- Pressure and Volume Relationship or Bolye's Law
- Absolute Zero
- The Temperature and a Thermometer
- Introduction
- Experiment: 1
- Experiment: 2
- Scales of Thermometers
- Fahrenheit scale
- Celsius temperature scale
- Kelvin scale (Absolute scale)
- Relationship between the three scales of temperature
- Conversion of Temperature from celsius scale to kelvin scale and vice-versa
- Gas Equation
- Standard Temperature Pressure (S.T.P.)
- The Effect of Moisture and Pressure
8 Atmospheric Pollution
- Atmospheric Pollution
- Environmental Issues
- Air Pollution and Its Causes
- Air Pollution
- Causes of Air Pollution
- Reasons of Air Pollution
- Ozone Layer: The Protective Shell
- Air Pollution and Its Causes
- Effects of Air Pollution
- Air Pollutants and its Effects
- Effect of Air Pollution on Plants and Animals
- Depletion of the Ozone Layer
- Greenhouse Effect and Global Warming
- Acid Rain and its impact
- Effects of Acid Rain
- Prevention of Air Pollution
- Gaseous Pollutants and Their Effects
- Acid Rain
- Acid rain
- Effects of Acid rain
- Causes of Acid Rain
- Green House Effect
- Green House Effect
- Green House gases
- Advantage of Green House Effect
- Global Warming
- Global Warming
- Causes of Global warming
- Effect of Global Warming
- Preventive Measures of Global Warming
- Ozone
- Ozone
- Function of ozone in the atmosphere
- Harmful effects of ozone
- Ozone Layer Depletion
- Depletion of Ozone Layer
- Chemicals responsible for the destruction of the ozone layer
9 Elements, Compounds and Mixtures
- Differences Between Elements, Compounds, and Mixtures
- Types of Mixtures
- Types of Mixtures
- Experiment 1
- Experiment 2
- Mixture
- Introduction
- Separation of Unwanted Substances from Mixtures
- Activity
- Separation of Mixtures
- Use of Solvent and Filtration
- Heat and change of physical state
- Concept of Evaporation
- Factors Affecting Evaporation
- How does Evaporation cause cooling?
- Concept of Evaporation
- Methods of Separation
- Simple Distillation Method
- Distillation Method
- Experiment 1
- Experiment 2
- Simple Distillation Method
- Distillation Method
- Experiment 1
- Experiment 2
- Chromatography Method
- Introduction
- Experiment
- Centrifugation Method
- Centrifugation and Its Working
- Principle and Applications of Centrifugation
- Experiment
- Solvent Extraction (Using a Separating Funnel Method)
- Introduction to Separation Using a Separating Funnel
- Experiment
- Simple Distillation Method
12 Matter and Its Composition: Law of Conservation of Mass
- Heat and change of physical state
- Introduction
- Effect of Change of Temperature
- Effect of Change of Pressure
- Heat Required to Change State
- Inter-particle Space and Interparticle Attraction and Collision
- Laws of Chemical Combination
- Law of Conservation of Mass
13 Practical Work
- Laboratory Preparation of Hydrogen
- Laboratory Preparation of Oxygen
- Laboratory Preparation of Carbon Dioxide
- Laboratory Preparation of Chlorine
- Laboratory Preparation of Hydrogen Chloride Gas
- Preparation of hydrogen chloride gas from common salt.
- Purification of HCI gas
- Laboratory Preparation of Sulphur Dioxide
- Laboratory Preparation of Hydrogen Sulphide
- Laboratory Preparation of Ammonia Gas
- Preparation of ammonia from ammonium chloride and calcium hydroxide.
- Preparation of ammonia from magnesium nitride.
- Laboratory Preparation of Water Vapour
- Laboratory Preparation of Nitrogen Dioxide
- Action of Heat on a Given Substance
- Action of heat on Copper carbonate (Green solid)
- Action of heat on Zinc carbonate (White solid)
- Action of heat on Washing soda (White crystals)
- Action of heat on Copper sulphate (Blue crystals)
- Action of heat on Zinc nitrate (White solid)
- Action of heat on Copper nitrate (Green solid)
- Action of heat on Lead nitrate (White solid)
- Action of heat on Ammonium chloride (White solid)
- Action of heat on Iodine Violet solid
- Action of heat on Ammonium dichromate (Orange solid)
- Action of Dilute Sulphuric Acid on a Given Substance
- The action of dilute sulphuric acid on magnesium.
- The action of dilute sulphuric acid on Zinc.
- The action of dilute sulphuric acid on Sodium carbonate
- The action of dilute sulphuric acid on Sodium bicarbonate.
- The action of dilute sulphuric acid on Iron(II) sulfide
- The action of dilute sulphuric acid on sodium sulfate
- The action of dilute sulphuric acid on Potassium sulfite
- Dry Test
- Recognition of Substances by Colour
- Recognition of Substances by Odour
- Recognition of Substances by Physical State
- Table of solubility of salts and bases in water
- Recognition of Substances by Action of Heat
- Identification of solids by the action of heat:
- Ammonium salt
- PbO2, Pb3O4, HgO, KNO3, NaNO3
- Carbonate and bicarbonate (except K2CO3 and Na2CO3)
- Hydrated salt
- Sulphite or sulphate
- Lead compounds decompose to give lead monoxide; PbO
- Zinc compounds decompose on heating to give zinc oxide
- Copper compound decomposes to give black copper oxide CuO.
- Some naturally occurring acids:
- Acetic acid
- Citric acid
- Butyric acid
- Hydrochloric acid
- Formic acid
- Lactic acid
- Malic acid
- Oleic acid
- Stearic acid
- Tartaric acid
- Uric acid
- Flame Test
- Classification of water: Soft and Hard Water
- Soft and Hard water
- Types of Hard water
- Temporary Hardness
- Permanent Hardness
- Simple Experiments Based on Hard Water and Soft Water
- Differentiating hard water from soft water.
- Differentiating between temporary and permanent hard water.
- Soap and detergents
- Comparing the effects of soaps and detergents on hard water.
- Water Pollution and Its Causes
- Water Pollution
- Types of Water Pollutants
- Causes of Water Pollution
- Reasons of Water Pollution
- Water Quality
- Strength of Acidic or Basic Solutions
- pH Scale
- Importance of pH in Everyday Life
- Prevention of Water Pollution
