Based on the CISCE ICSE Chemistry syllabus
ICSE Class 9 Chemistry: Syllabus, Topics & Sample Practice
Understand the eight official CISCE Chemistry sections for Class 9, how the 80 + 20 paper and practical assessment work, and work through a stepped demonstration question — calm, structured foundations for the ICSE Chemistry course.
Key Curriculum Facts
- 80 marks
- Theory Paper
- 2-hour written paper
- 20 marks
- Internal Assessment
- Practical work & file
- Own paper
- Examined As
- Separate from Physics & Biology
Why Class 9 Chemistry Is the Foundation Year
ICSE Chemistry is a two-year course across Classes 9 and 10. Class 9 introduces the language of chemistry, atomic structure and bonding, the periodic table, the chemistry of water and hydrogen, and the gas laws — the groundwork for the Class 10 board paper.
The CISCE Class 9 syllabus is organised into eight sections. Writing and balancing equations confidently, understanding bonding, and handling simple gas-law calculations here makes the board year far smoother.
This page shows EduMagik's stepped reasoning approach with a worked demonstration question: a clue first, then a full step-by-step solution, so the concept is understood rather than just answered.
The Eight CISCE Chemistry Sections (ICSE Class 9)
The official CISCE Class 9 syllabus is organised into eight sections — grouped here by theme
Foundations of Chemistry
-
Ch 1
The Language of Chemistry
Symbols of elements, valency and the formulae of radicals and compounds; balancing simple chemical equations; and relative atomic and molecular masses with the calculation of percentage composition of a compound.
-
Ch 2
Chemical Changes and Reactions
Types of chemical change — direct combination, decomposition, displacement and double decomposition, each with suitable equations; and energy changes in reactions, including exothermic and endothermic examples.
Atomic Structure & Periodicity
-
Ch 4
Atomic Structure and Chemical Bonding
Structure of the atom, mass number and atomic number, isotopes and the octet rule; and electrovalent and covalent bonding with the orbit (electron-dot) structures of compounds such as NaCl, MgCl₂, hydrogen, chlorine, ammonia and methane.
-
Ch 5
The Periodic Table
Dobereiner's triads, Newland's law of octaves and Mendeleev's contributions; the Modern Periodic Law based on atomic number; and the Modern Periodic Table (groups 1–18 and periods 1–7) with reference to alkali metals, alkaline earth metals and halogens.
Water & Gas Laws
-
Ch 3
Water
Water as a universal solvent and the effect of temperature on solubility; hydrated and anhydrous substances and water of crystallisation; efflorescence, deliquescence and hygroscopy; and soft and hard water with the removal of hardness.
-
Ch 7
Study of Gas Laws
The behaviour of gases under changes of temperature and pressure; Boyle's Law and Charles' Law with simple calculations; absolute zero and the Kelvin scale; and the gas equation P₁V₁/T₁ = P₂V₂/T₂ and standard temperature and pressure.
Hydrogen & the Environment
-
Ch 6
Study of the First Element — Hydrogen
The position of hydrogen in the periodic table; its preparation from water, dilute acids and alkalis using the activity series; laboratory preparation and collection; industrial manufacture by the Bosch process; and oxidation and reduction reactions.
-
Ch 8
Atmospheric Pollution
Acid rain — its composition, causes and impact on soil chemistry and water bodies; global warming and the greenhouse gases responsible; and the formation and depletion of the ozone layer.
A gas occupies 200 cm³ at a pressure of 1 atm. At constant temperature, what volume will it occupy when the pressure is increased to 2 atm?
Reasoning Clue & Solution
Temperature is constant, so Boyle's Law applies: P₁V₁ = P₂V₂. What happens to volume when pressure doubles?
The EduMagik 3-Step Hint Ladder
Point to the Law
Names the relationship to reach for (e.g. "Use Boyle’s Law") without giving the answer.
Guided Reasoning Prompt
Prompts the key idea (e.g. "What happens to volume when pressure doubles at constant temperature?").
Complete Worked Solution
Shows the full step-by-step working and explains why the answer is correct.
How to Revise Class 9 Chemistry
Simple, high-impact ways to build strong foundations
Practise Writing and Balancing Equations
The language of chemistry underpins everything — confident symbols, formulae and balanced equations make every later topic easier.
Draw Electron-Dot Structures
Sketching the bonding in NaCl, water, ammonia and methane turns abstract bonding rules into something you can see and remember.
Keep a Tidy Practical File
Internal assessment is 20 marks; careful observations in experiments on heat, salts and hard water genuinely lift the overall grade.
Frequently Asked Questions
What are the main topics in ICSE Class 9 Chemistry?
The CISCE Class 9 syllabus is organised into eight sections: The Language of Chemistry; Chemical Changes and Reactions; Water; Atomic Structure and Chemical Bonding; The Periodic Table; Study of the First Element — Hydrogen; Study of Gas Laws; and Atmospheric Pollution. Always confirm the current syllabus with CISCE or your school.
How is ICSE Class 9 Chemistry assessed?
By one 2-hour written theory paper of 80 marks, plus 20 marks of internal assessment for practical work (experiments and a practical file) — totalling 100.
Is Class 9 Chemistry a separate paper in ICSE?
Yes. Within the Science group, Chemistry is examined as its own paper, separate from Physics and Biology, each with its own 80 + 20 scheme.
How does Class 9 Chemistry connect to the Class 10 board exam?
ICSE Chemistry is a two-year course assessed at the end of Class 10. Class 9 introduces atomic structure, bonding, the periodic table, hydrogen and the gas laws — the foundations that Class 10 topics such as the mole concept, electrolysis and organic chemistry build on.
Related Learning Paths
Ready to Support Your Child's Learning?
Join EduMagik and explore the curriculum with calm, structured guidance.
Join EduMagik Free