Chemical Reactions and Equations • रासायनिक अभिक्रियाएँ एवं समीकरण
Types of chemical reactions, combination, decomposition, displacement, double displacement, redox, balancing equations, corrosion, and rancidity.
Complete Chapter Notes, NCERT Solutions, Important Questions & MCQs in Hindi & English Medium
| Unit / इकाई | Unit Title (विषय) | Chapters (अध्याय) | Marks (अंक) |
|---|---|---|---|
| Unit I |
Chemical Substances - Nature and Behaviour रासायनिक पदार्थ - प्रकृति एवं व्यवहार | Ch 1 - 4 | 25 Marks |
| Unit II |
World of Living सजीव जगत (जीव विज्ञान) | Ch 5 - 8 | 25 Marks |
| Unit III |
Natural Phenomena प्राकृतिक घटनाएँ (प्रकाशिकी) | Ch 9 - 10 | 12 Marks |
| Unit IV |
Effects of Current विद्युत का प्रभाव | Ch 11 - 12 | 13 Marks |
| Unit V |
Natural Resources प्राकृतिक संसाधन (पर्यावरण) | Ch 13 | 5 Marks |
| Total Theory Examination / सैद्धांतिक परीक्षा | 80 Marks | ||
| Internal Assessment (Practicals & Periodic Tests) / आंतरिक मूल्यांकन | 20 Marks | ||
Select any chapter to access Detailed Notes, Revision Sheets, Step-Marked NCERT Solutions, and Interactive MCQs.
Types of chemical reactions, combination, decomposition, displacement, double displacement, redox, balancing equations, corrosion, and rancidity.
Indicators, pH scale, chemical properties of acids & bases, salts preparation (Baking Soda, Bleaching Powder, Plaster of Paris).
Physical and chemical properties, reactivity series, formation of ionic compounds, metallurgy and corrosion prevention.
Covalent bonding, versatile nature of carbon, homologous series, functional groups, chemical properties, soaps and detergents.
Nutrition (autotrophic & heterotrophic), respiration (aerobic & anaerobic), human transportation system, and excretion.
Nervous system, structure of neuron, reflex arc, human brain, plant hormones (tropisms), and endocrine glands.
Asexual reproduction modes, sexual reproduction in flowering plants, human male and female reproductive systems, reproductive health.
Mendel’s laws of inheritance, monohybrid and dihybrid crosses, sex determination in human beings.
Spherical mirrors, ray diagrams, mirror formula, refractive index, lenses, lens formula, magnification, and power of lens.
Structure of human eye, defects of vision (myopia, hypermetropia, presbyopia), dispersion of light, atmospheric refraction, scattering of light (Tyndall effect).
Electric current, potential difference, Ohm’s law, factors affecting resistance, series and parallel combinations, Joule’s heating law, electric power.
Magnetic field lines, field due to current-carrying conductor, solenoid, Fleming’s Left-Hand Rule, electric motor principle, electromagnetic induction, domestic circuits.
Ecosystem, food chains and food webs, 10% energy transfer law, biomagnification, ozone layer depletion, and solid waste management.