NCERT Solutions — Class 9 & 10 Science, Maths, Social Science
Free NCERT concept explanations and solutions for CBSE students. Step-by-step answers, key formulas, and frequently asked board exam questions for Class 9 and Class 10.
Available NCERT Topics
- What is Oxidation? — Class 10 Science
- Photosynthesis Explained — Class 9 Science
- How to Solve Quadratic Equations — Class 10 Mathematics
- Ohm's Law and Resistance — Class 10 Science
- What Are Irrational Numbers? — Class 9 Mathematics
- Sum of AP Formula — Class 10 Mathematics
- States of Matter — Class 9 Science
- Mixtures and Solutions — Class 9 Science
- Dalton's Atomic Theory — Class 9 Science
- Bohr Model of Atom — Class 9 Science
- Cell Structure and Functions — Class 9 Science
- Plant and Animal Tissues — Class 9 Science
- Newton's Laws of Motion — Class 9 Science
- Universal Law of Gravitation — Class 9 Science
- Work, Power and Energy — Class 9 Science
- Properties and Reflection of Sound — Class 9 Science
- pH Scale and Indicators — Class 10 Science
- Properties of Metals and Non-Metals — Class 10 Science
- Carbon Compounds and Functional Groups — Class 10 Science
- Mirror Formula and Lens Formula — Class 10 Science
- Zeroes of Polynomials — Class 9 Mathematics
- Cartesian System — Class 9 Mathematics
- Angle Sum Property and Parallel Lines — Class 9 Mathematics
- Congruence of Triangles — Class 9 Mathematics
- Area of Triangle Using Heron's Formula — Class 9 Mathematics
- Mean, Median and Mode — Class 9 Mathematics
- Chord Properties and Theorems — Class 9 Mathematics
- Angles Subtended by Arcs and Chords — Class 9 Mathematics
- Euclid's Division Algorithm — Class 10 Mathematics
- Fundamental Theorem of Arithmetic — Class 10 Mathematics
- Zeroes and Coefficients — Class 10 Mathematics
- Construction of Tangents to a Circle — Class 10 Mathematics
- Substitution and Elimination Method — Class 10 Mathematics
- Similarity of Triangles — Class 10 Mathematics
- Trigonometric Ratios — Class 10 Mathematics
- Basic Probability Concepts — Class 10 Mathematics
- The French Revolution — Class 9 Social Science
- Socialism in Europe and the Russian Revolution — Class 9 Social Science
- Physical Features of India — Class 9 Social Science
- Climate of India — Class 9 Social Science
- The Rise of Nationalism in Europe — Class 10 Social Science
- Resources and Development — Class 10 Social Science
- Power Sharing — Class 10 Social Science
- Development — Concepts and Indicators — Class 10 Social Science
- India — Size and Location — Class 9 Social Science
- Indian Nationalist Movement — Class 10 Social Science
- Rise of Nazism in Germany — Class 9 Social Science
- Nationalism in India — Class 9 Social Science
- Classification of Organisms — Class 9 Science
- SI Units and Dimensional Analysis — Class 11 Physics
- Equations of Motion — Class 11 Physics
- Newton's Three Laws of Motion — Class 11 Physics
- Work-Energy Theorem — Class 11 Physics
- Universal Law of Gravitation and Kepler's Laws — Class 11 Physics
- Mole Concept and Molar Mass — Class 11 Chemistry
- Quantum Numbers and Electronic Configuration — Class 11 Chemistry
- Types of Chemical Bonds — Class 11 Chemistry
- Ideal Gas Law and Gas Laws — Class 11 Chemistry
- First Law of Thermodynamics and Enthalpy — Class 11 Chemistry
- Cell Organelles and Their Functions — Class 11 Biology
- Proteins, Enzymes and their Properties — Class 11 Biology
- Mechanism of Breathing — Class 11 Biology
- Types of Sets and Set Operations — Class 11 Mathematics
- Trigonometric Ratios, Identities and Equations — Class 11 Mathematics
- Arithmetic Progression and Geometric Progression — Class 11 Mathematics
- Concept of Limits and Derivatives — Class 11 Mathematics
- Accounting Concepts and Conventions — Class 11 Accountancy
- Journal Entries and Ledger — Class 11 Accountancy
- Sole Proprietorship and Partnership — Class 11 Business Studies
- Types of Companies and Public Enterprises — Class 11 Business Studies
- Coulomb's Law and Electric Field — Class 12 Physics
- Kirchhoff's Laws and Circuit Analysis — Class 12 Physics
- Faraday's Laws of Electromagnetic Induction — Class 12 Physics
- Photoelectric Effect — Class 12 Physics
- Concentration Terms, Molarity and Colligative Properties — Class 12 Chemistry
- Electrochemical Cells and Nernst Equation — Class 12 Chemistry
- Rate of Reaction and Rate Laws — Class 12 Chemistry
- Human Reproductive System and Gametogenesis — Class 12 Biology
- Mendel's Laws of Inheritance — Class 12 Biology
- Microbes, Antibiotics and Biotechnology Applications — Class 12 Biology
- Matrix Multiplication, Transpose and Inverse — Class 12 Mathematics
- Integration by Parts and Integration Techniques — Class 12 Mathematics
- Bayes' Theorem and Conditional Probability — Class 12 Mathematics
- Issue of Shares and Journal Entries — Class 12 Accountancy
- Ratio Analysis and Cash Flow Statement — Class 12 Accountancy
- Fayol's Principles and Taylor's Scientific Management — Class 12 Business Studies
- Laws of Thermodynamics — Class 11 Physics
- Moment of Inertia — Class 11 Physics
- Simple Harmonic Motion — Class 11 Physics
- Ohm's Law and Resistance — Class 11 Physics
- Chemical Equilibrium — Class 11 Chemistry
- Oxidation and Reduction — Class 11 Chemistry
- Alkanes, Alkenes and Alkynes — Class 11 Chemistry
- Group 15, 16, and 17 Elements — Class 11 Chemistry
- Process of Digestion — Class 11 Biology
- Nervous System — Class 11 Biology
- Plant Growth Regulators — Class 11 Biology
- Ecosystems and Ecological Relationships — Class 11 Biology
- Fundamental Counting Principles — Class 11 Mathematics
- Binomial Expansion — Class 11 Mathematics
- Equation of a Line — Class 11 Mathematics
- Circles, Parabolas, Ellipses and Hyperbolas — Class 11 Mathematics
- Methods of Depreciation — Class 11 Accountancy
- Types of Cash Book — Class 11 Accountancy
- Preparation of BRS — Class 11 Accountancy
- Goodwill and Admission of a Partner — Class 12 Accountancy
- Retirement and Death of a Partner — Class 12 Accountancy
- Dissolution of Partnership Firm — Class 12 Accountancy
- Partnership Accounts — Fundamentals — Class 12 Accountancy
- Marketing Mix — 4 Ps of Marketing — Class 12 Business Studies
- Velocity and Acceleration — Class 9 Science
- Conservation of Natural Resources — Class 9 Science
- Diseases and Health — Class 9 Science
- Graphical Method — Class 9 Mathematics
- Properties of Parallelogram — Class 9 Mathematics
- Cuboid and Cylinder — Class 9 Mathematics
- Basic Probability — Class 9 Mathematics
- Types of Natural Vegetation in India — Class 9 Social Science
- Population of India — Class 9 Social Science
- Fundamental Rights in India — Class 9 Social Science
- Economic Activities and Farming in Palampur — Class 9 Social Science
- Nutrition and Respiration — Class 10 Science
- Nervous System and Hormones — Class 10 Science
- Sexual and Asexual Reproduction — Class 10 Science
- Mendel's Laws of Inheritance — Class 10 Science
- Electromagnetic Induction — Class 10 Science
- Food Chains and Ecosystems — Class 10 Science
- Distance and Section Formula — Class 10 Mathematics
- Area of Sector and Segment — Class 10 Mathematics
- Mean, Median, and Mode of Grouped Data — Class 10 Mathematics
- Combination of Solids — Class 10 Mathematics
- Types of Farming and Major Crops in India — Class 10 Social Science
- Federal System of Government — Class 10 Social Science
- Primary, Secondary, and Tertiary Sectors — Class 10 Social Science
- Money, Credit, and Banking — Class 10 Social Science
- Reflection, Refraction, and Mirror/Lens Formula — Class 12 Physics
- Lens Formula, Magnification, and Power of Lenses — Class 12 Physics
- Interference, Diffraction, and Polarisation of Light — Class 12 Physics
- P-N Junction Diode, Rectifiers, and Transistors — Class 12 Physics
- Logic Gates and Boolean Algebra — Class 12 Physics
- Bohr's Model of the Atom and Hydrogen Spectrum — Class 12 Physics
- Radioactivity, Nuclear Decay, and Nuclear Reactions — Class 12 Physics
- Ligands, Complex Ions, Bonding, and Nomenclature — Class 12 Chemistry
- Carbohydrates, Proteins, Enzymes, and Vitamins — Class 12 Chemistry
- Nucleic Acids, DNA Structure, and Enzyme Kinetics — Class 12 Chemistry
- Adsorption, Catalysis, and Colloids — Class 12 Chemistry
- Recombinant DNA Technology, Restriction Enzymes, and Cloning — Class 12 Biology
- Applications in Medicine, Agriculture, and Diagnostics — Class 12 Biology
- Population Ecology, Growth Models, and Species Interactions — Class 12 Biology
- Energy Flow, Food Chains, and Nutrient Cycling — Class 12 Biology
- Biodiversity Patterns, Threats, and Conservation Strategies — Class 12 Biology
- Forest Society and Colonialism — Class 9 Social Science
- Pastoralists in the Modern World — Class 9 Social Science
- People as Resource — Class 9 Social Science
- Poverty as a Challenge — Class 9 Social Science
- Print Culture and the Modern World — Class 10 Social Science
- The Age of Industrialisation — Class 10 Social Science
- Political Parties — Class 10 Social Science
- Outcomes of Democracy — Class 10 Social Science
- Globalisation and the Indian Economy — Class 10 Social Science
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