CLASS 10 SCIENCE NCERT QUESTIONS CH-1 CHEMICAL REACTIONS AND EQUATIONS CH-2 ACID, BASES AND SALT CH-3 METALS AND NON METALS CH-4 CARBON AND ITS COMPOUNDS CH-5 PERIODIC CLASSIFICATION OF ELEMENTS CH-6 LIFE PROCESSES CH-7 CONTROL AND COORDINATION CH-8 HOW DO ORGANISM REPRODUCE CH-9 HEREDITY AND EVOLUTION CH-10 LIGHT REFLECTION AND REFRACTION CH-11 HUMAN EYE AND COLOURFUL WORLD CH-12 ELECTRICITY CH-13 MAGNETIC EFFECT OF ELECTRIC CURRENT CH-14 SOURCES OF ENERGY CH-15 OUR ENVIRONMENT CH-16 MANAGEMENT OF NATURAL RESOURCES