CBSE – Class 9 Chemistry Syllabus

Based on the NCERT and CBSE guidelines:

Chapters:

1. Matter in Our Surroundings

   • States of matter, interconversion, evaporation, condensation, boiling, sublimation, latent heat

2. Is Matter Around Us Pure?

   • Elements, compounds, mixtures, physical vs chemical changes, methods of separation like centrifugation and chromatography 

3. Atoms and Molecules

   • Laws of chemical combination, Dalton’s theory, molecules, mole concept, chemical formulae 

4. Structure of the Atom

   • Atomic models, subatomic particles, isotopes, isobars, electronic configuration 

Practicals (Internal Assessment – 20 marks): 

• Prepare solutions, suspensions, and colloids; distinguish based on transparency, filtration, stability.

• Differentiate mixture vs compound (e.g., iron & sulfur).

• Classify reactions as physical or chemical (e.g., magnesium burning, zinc + acid).

Class 9 Chemistry Course – CBSE Board (2025)

Unit 1: Matter in Our Surroundings

• Definition and characteristics of matter

• States of matter: solid, liquid, gas

• Interconversion of states of matter (melting, boiling, condensation, sublimation)

• Latent heat, effect of temperature & pressure

• Daily life applications

Unit 2: Is Matter Around Us Pure?

• Elements, compounds, and mixtures

• Homogeneous & heterogeneous mixtures

• Types of solutions – true solution, suspension, colloid

• Physical & chemical changes

• Separation techniques: filtration, distillation, chromatography, centrifugation

Unit 3: Atoms and Molecules

• Laws of chemical combination

• Dalton’s atomic theory

• Atomic and molecular mass

• Mole concept & Avogadro’s number

• Writing and balancing chemical equations

Unit 4: Structure of the Atom

• Discovery of subatomic particles (electron, proton, neutron)

• Thomson’s, Rutherford’s, and Bohr’s atomic models

• Isotopes and isobars

• Electronic configuration of first 20 elements

• Applications of isotopes in daily life

Practical Work (Experiments)

• Prepare true solution, suspension & colloid and compare properties

• Verify law of conservation of mass

• Distinguish between mixture & compound (iron + sulfur)

• Perform simple reactions (burning magnesium, zinc + acid, etc.)

• Verify the Law of Conservation of Mass in a chemical reaction.