CBSE Class 10 Important Chapters 2026-27
Chapter-wise Guide, Important Topics & Key Concepts for Board Exams
Discover the most important chapters in CBSE Class 10 across all subjects for the 2026-27 board exams. Focus your preparation on high-yield topics.
CBSE Class 10 Mathematics Important Chapters 2026-27
| Chapter No. | Chapter Name | Importance Level | Key Topics |
|---|---|---|---|
| Ch 1 | Real Numbers | Medium | Euclid's division algorithm, HCF, LCM, irrational numbers |
| Ch 2 | Polynomials | High | Zeroes, relationship between zeroes and coefficients, division algorithm |
| Ch 3 | Pair of Linear Equations in Two Variables | High | Graphical solutions, algebraic methods, word problems |
| Ch 4 | Quadratic Equations | High | Factorisation, quadratic formula, nature of roots |
| Ch 5 | Arithmetic Progressions | High | nth term, sum of first n terms, applications |
| Ch 6 | Triangles | High | Similarity, criteria, Pythagoras theorem, applications |
| Ch 7 | Coordinate Geometry | Medium | Distance formula, section formula, area of triangle |
| Ch 8 | Introduction to Trigonometry | High | Trigonometric ratios, identities, complementary angles |
| Ch 9 | Some Applications of Trigonometry | Medium | Heights and distances, angle of elevation/depression |
| Ch 10 | Circles | High | Tangents to a circle, theorems, number of tangents |
| Ch 11 | Areas Related to Circles | Medium | Area of sector, segment, combination of figures |
| Ch 12 | Surface Areas and Volumes | High | Surface area and volume of combination of solids |
| Ch 13 | Statistics | Medium | Mean, median, mode, graphical representation |
| Ch 14 | Probability | Medium | Probability of events, theoretical probability |
Pro Tip: Focus heavily on Chapters 2, 3, 4, 5, 6, 8, 10, and 12. These chapters carry the highest weightage in board exams and form the foundation for higher classes.
CBSE Class 10 Science Important Chapters 2026-27
| Chapter No. | Chapter Name | Importance Level | Key Topics |
|---|---|---|---|
| Chemistry | |||
| Ch 1 | Chemical Reactions and Equations | High | Types of reactions, balancing equations, oxidation-reduction |
| Ch 2 | Acids, Bases and Salts | High | Properties, pH scale, indicators, salts and their uses |
| Ch 3 | Metals and Non-Metals | High | Properties, reactivity series, extraction of metals |
| Ch 4 | Carbon and Its Compounds | High | Bonding, homologous series, nomenclature, chemical properties |
| Biology | |||
| Ch 5 | Life Processes | High | Nutrition, respiration, transportation, excretion |
| Ch 6 | Control and Coordination | High | Nervous system, coordination in plants, endocrine system |
| Ch 7 | How Do Organisms Reproduce? | High | Asexual and sexual reproduction, reproductive health |
| Ch 8 | Heredity and Evolution | Medium | Mendelian genetics, evolution, speciation |
| Physics | |||
| Ch 9 | Light - Reflection and Refraction | High | Laws of reflection, spherical mirrors, lens formula |
| Ch 10 | Human Eye and Colourful World | Medium | Structure of eye, defects, dispersion of light |
| Ch 11 | Electricity | High | Ohm's law, resistance, series and parallel circuits, electric power |
| Ch 12 | Magnetic Effects of Electric Current | High | Magnetic field, electromagnetism, electric motor, generator |
| Ch 13 | Our Environment | Medium | Ecosystems, food chains, ozone layer, waste management |
Pro Tip: Prioritize Chemistry Chapters 1, 2, 3, 4; Biology Chapters 5, 6, 7; and Physics Chapters 9, 11, 12. These chapters carry the highest weightage and are frequently tested in board exams.
CBSE Class 10 English Important Chapters 2026-27
First Flight (Prose)
| High | A Letter to God |
| High | Nelson Mandela: Long Walk to Freedom |
| High | From the Diary of Anne Frank |
| High | The Proposal |
| Medium | Two Stories about Flying |
| Medium | Madam Rides the Bus |
Poetry & Supplementary
Poetry (First Flight)
| High | Dust of Snow |
| High | Fire and Ice |
| High | A Tiger in the Zoo |
| Medium | Amanda! |
Footprints Without Feet
| High | A Triumph of Surgery |
| High | The Thief's Story |
| High | Footprints Without Feet |
| High | The Necklace |
| Medium | The Midnight Visitor |
Pro Tip: For English, focus on prose chapters: "A Letter to God", "Nelson Mandela", "From the Diary of Anne Frank", and "The Proposal". For poetry: "Dust of Snow", "Fire and Ice", and "A Tiger in the Zoo". For supplementary: "A Triumph of Surgery", "The Thief's Story", "Footprints Without Feet", and "The Necklace".
CBSE Class 10 Hindi Important Chapters 2026-27
Kshitij (गद्य)
| High | सूरदास - उत्साह, अट नहीं रही |
| High | तुलसीदास - राम-लक्ष्मण-परशुराम संवाद |
| High | जयशंकर प्रसाद - आत्मकथ्य |
| High | नागार्जुन - यह दंतुरित मुस्कान |
| Medium | प्रेमचंद - नाना साहब की पुत्री |
Sparsh & Grammar
Sparsh (गद्य & कविता)
| High | कबीर - साखी |
| High | मीराबाई - पद |
| High | तुलसीदास - पद |
| Medium | शिवप्रसाद मिश्र 'रुद्र' - प्रेमचंद |
व्याकरण
| High | संधि, समास, अलंकार |
| High | वाक्य, मुहावरे |
Pro Tip: For Hindi, focus on Kshitij: "सूरदास - उत्साह", "तुलसीदास - राम-लक्ष्मण-परशुराम संवाद", "जयशंकर प्रसाद - आत्मकथ्य", and "नागार्जुन - यह दंतुरित मुस्कान". For Sparsh: कबीर की साखी, मीराबाई के पद, and तुलसीदास के पद. Focus on grammar: संधि, समास, अलंकार, and मुहावरे.
Chapters with High Weightage 2026-27
| Subject | High Weightage Chapters | Weightage (%) | Priority |
|---|---|---|---|
| Mathematics | Polynomials, Linear Equations, Quadratic Equations, Arithmetic Progressions | 30% | Critical |
| Triangles, Circles, Trigonometry, Surface Areas & Volumes | 40% | Critical | |
| Science | Chemical Reactions, Acids & Bases, Metals & Non-metals, Carbon Compounds | 30% | Critical |
| Life Processes, Control & Coordination, Reproduction | 30% | Critical | |
| Light, Electricity, Magnetic Effects | 40% | Critical | |
| Social Science | Nationalism in Europe, Nationalism in India | 15% | Critical |
| Resources & Development, Agriculture, Power Sharing, Federalism, Development, Sectors of Economy | 45% | Critical | |
| English | A Letter to God, Nelson Mandela, From the Diary of Anne Frank, Dust of Snow, Fire and Ice, A Triumph of Surgery, The Necklace | 40% | Critical |
| Hindi | सूरदास - उत्साह, तुलसीदास - राम-लक्ष्मण-परशुराम संवाद, कबीर - साखी, मीराबाई - पद, संधि, समास | 40% | Critical |
Final Tip: Prioritize these high-weightage chapters first. Master them thoroughly before moving to other chapters. This strategy will help you score well even with limited preparation time for the 2026-27 board exams.
Frequently Asked Questions
The most important chapters in CBSE Class 10 Mathematics are Polynomials, Quadratic Equations, Arithmetic Progressions, Triangles, Circles, Introduction to Trigonometry, and Surface Areas and Volumes. These chapters carry the highest weightage in board exams.
Important chapters in CBSE Class 10 Science include Chemical Reactions, Acids Bases and Salts, Metals and Non-metals, Carbon and Its Compounds, Life Processes, Control and Coordination, Light: Reflection and Refraction, Electricity, and Magnetic Effects of Electric Current. These chapters are frequently tested in board exams.
Start with high-weightage chapters first. In Mathematics, focus on Algebra and Geometry chapters. In Science, focus on Physics (Light, Electricity) and Chemistry (Chemical Reactions, Carbon Compounds). In Social Science, focus on History (Nationalism) and Civics & Economics (Power Sharing, Development, Sectors of Economy).
While all chapters are important, some chapters carry higher weightage than others. It's recommended to focus more on high-weightage chapters first, but don't completely ignore the others. A balanced approach is best for overall performance in the 2026-27 board exams.
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CBSE Class 10 Social Science Important Chapters 2026-27
History
Geography
Civics
Economics