This book has been revised strictly according to the latest syllabus as per the new CISCE, New Delhi, course structure and guidelines.Table of Contents1. Matter and Its Composition: Law of Conservation of Mass2. Study of Gas Laws3. Elements, Compounds and Mixtures4. The Language of Chemistry5. Physical and Chemical Changes6. Water7. Atomic Structure8. Periodic Table9. Study of the First Group Element: HydrogenGlossary