CBSE Board Exams 2027: Pattern, Syllabus & Free Practice
CBSE Board Examinations (Class 10 & 12)
The CBSE board examinations for Class 10 and Class 12 are conducted by the Central Board of Secondary Education on the NCERT syllabus. Over the last few years CBSE has steadily shifted the papers towards competency-based questions — case studies, source-based sets, assertion-reason items and applied MCQs — that test whether you can use a concept, not just recall it.
This is a working reference for the boards: the question pattern for Class 10 and 12, how the competency shift changes what you should practise, and the NCERT syllabus by subject — with free key-concept notes, chapter-wise MCQs and board-pattern mock papers you can start right now.
CBSE Boards exam pattern at a glance
| Conducting body | Central Board of Secondary Education (CBSE) |
|---|---|
| Mode | Pen-and-paper, offline |
| Classes | Class 10 and Class 12 board exams |
| Basis | NCERT syllabus |
| Class 10 paper mix | ≈50% competency-based · 20% MCQ · 30% short/long answer |
| Class 12 paper mix | ≈30% competency-based · 20% MCQ · 50% short/long answer |
| Competency questions | Case-based, source-based, assertion-reason, applied MCQs |
| Negative marking | None |
CBSE board papers carry no negative marking — a wrong answer simply scores zero, so you should attempt every question. The real shift to prepare for is the format: with roughly half the Class 10 paper (and a growing share of Class 12) now competency-based, rote answers no longer suffice. Case-based and assertion-reason questions reward students who have practised applying each concept, which is exactly what chapter-wise MCQ practice with worked explanations builds.
CBSE Boards syllabus & free chapter-wise practice
CBSE follows the NCERT syllabus, so the most efficient preparation is to revise each chapter's key concepts and then drill it with board-style questions. Below, each subject links to free chapter-wise practice — every chapter opens with a Key Concepts revision card (overview, definitions, formulas, common traps) before the questions. Class 10 is the core board year here; Class 12 subject practice sits alongside the JEE and NEET tracks.
Class 10 — core subjects
The first board year. Maths, Science, Social Science and English all reward steady chapter-wise practice and case-based question drilling more than last-minute cramming.
Class 12 — Science stream
The board year that runs alongside JEE and NEET. The same NCERT chapters serve both, so board practice and entrance practice reinforce each other — and English Core is compulsory alongside them.
Class 11 — the year before the board
No board exam of its own, which is exactly why it slips. Class 11 carries a large share of the Class 12 syllabus in Physics, Chemistry and Maths, and English and Computer Science both continue straight into the board year.
Foundation — Class 8 & 9
The years that decide how hard the boards feel. A strong NCERT foundation in Class 8 and 9 is the cheapest way to a comfortable Class 10.
Every CBSE Boards chapter, free to practise
Each chapter opens with free Key Concepts notes, then NCERT-aligned MCQs with a worked explanation on every question.
- Chemical Reactions and Equations
- Acids, Bases and Salts
- Metals and Non-metals
- Carbon and Its Compounds
- Life Processes
- Control and Coordination
- How do Organisms Reproduce?
- Heredity
- Light — Reflection and Refraction
- The Human Eye and the Colourful World
- Electricity
- Magnetic Effects of Electric Current
- Our Environment
- The Rise of Nationalism in Europe
- Nationalism in India
- The Making of a Global World
- The Age of Industrialisation
- Print Culture and the Modern World
- Resources and Development
- Forest and Wildlife Resources
- Water Resources
- Agriculture
- Minerals and Energy Resources
- Manufacturing Industries
- Lifelines of National Economy
- Power Sharing
- Federalism
- Gender, Religion and Caste
- Political Parties
- Outcomes of Democracy
- Development
- Sectors of the Indian Economy
- Money and Credit
- Globalisation and the Indian Economy
- Consumer Rights
- Electric Charges and Fields
- Electrostatic Potential and Capacitance
- Current Electricity
- Moving Charges and Magnetism
- Magnetism and Matter
- Electromagnetic Induction
- Alternating Current
- Electromagnetic Waves
- Ray Optics and Optical Instruments
- Wave Optics
- Dual Nature of Radiation and Matter
- Atoms
- Nuclei
- Semiconductor Electronics
- Sexual Reproduction in Flowering Plants
- Human Reproduction
- Reproductive Health
- Principles of Inheritance and Variation
- Molecular Basis of Inheritance
- Evolution
- Human Health and Disease
- Microbes in Human Welfare
- Biotechnology: Principles and Processes
- Biotechnology and its Applications
- Organisms and Populations
- Ecosystem
- Biodiversity and Conservation
- The Last Lesson
- Lost Spring
- Deep Water
- The Rattrap
- Indigo
- Poets and Pancakes
- The Interview
- Going Places
- My Mother at Sixty-six
- Keeping Quiet
- A Thing of Beauty
- A Roadside Stand
- Aunt Jennifer's Tigers
- The Third Level
- The Tiger King
- Journey to the end of the Earth
- The Enemy
- On the Face of It
- Memories of Childhood
- Grammar and Usage
- Sentence Transformation
- Writing: Notice
- Writing: Invitation and Reply
- Writing: Letters
- Writing: Article and Report
- Reading Skills: Unseen Passages
- Orienting Yourself: The Use of Coordinates
- Introduction to Linear Polynomials
- The World of Numbers
- Exploring Algebraic Identities
- I'm Up and Down, and Round and Round
- Measuring Space: Perimeter and Area
- The Mathematics of Maybe: Introduction to Probability
- Predicting What Comes Next?: Exploring Sequences and Progressions
- Linear Equations in Two Variables
- Introduction to Euclid's Geometry
- Lines and Angles
- Triangles
- Quadrilaterals
- Surface Areas and Volumes
- Statistics
- How I Taught My Grandmother to Read
- The Pot Maker
- Winds of Change
- Vitamin-M
- The World of Limitless Possibilities
- Twin Melodies
- Carrier of Words
- Follow That Dream
- Grammar: Sequence of Tenses
- Grammar: Modal Auxiliaries
- Grammar: Reported Speech
- Grammar: Conditional Clauses (Type 1)
- Grammar: Subject-Verb Concord
- Grammar: Determiners
- Grammar: Clauses (Noun & Relative)
- Writing: Notice & Informal Invitation
- Writing: Letter to the Editor & Formal E-mail
- Writing: Factual Description & Magazine Article
- Writing: Descriptive & Narrative Essay
- Reading Skills: Unseen Passages
- Understanding Social Science
- Shaping of the Earth's Surface
- Atmosphere and Climate
- Early Humans and Beginning of Civilisation
- State and Society (upto 1000 CE)
- Democracy
- Elections
- Building Blocks in Economics
- The Price Puzzle: What Drives the Market
- Oceans and Life
- Life on Earth
- Resistance and Resilience (1000–1700 CE)
- India and the World-I (1900 BCE–1200 CE)
- Authority
- From Ideas to Startups
- Smart Ways to Manage Your Finances
- Exploring the Investigative World of Science
- The Invisible Living World: Beyond Our Naked Eye
- Health: The Ultimate Treasure
- Electricity: Magnetic and Heating Effects
- Exploring Forces
- Pressure, Winds, Storms and Cyclones
- Particulate Nature of Matter
- Nature of Matter: Elements, Compounds and Mixtures
- The Amazing World of Solutes, Solvents and Solutions
- Light: Mirrors and Lenses
- Keeping Time with the Skies
- How Nature Works in Harmony
- Our Home: Earth, a Unique Life-Sustaining Planet
- The Wit that Won Hearts
- A Concrete Example
- Wisdom Paves the Way
- A Tale of Valour: Major Somnath Sharma and the Battle of Badgam
- Somebody's Mother
- Verghese Kurien: I Too Had a Dream
- The Case of the Fifth Word
- The Magic Brush of Dreams
- Spectacular Wonders
- The Cherry Tree
- Harvest Hymn
- Waiting for the Rain
- Feathered Friend
- Magnifying Glass
- Bibha Chowdhuri: The Beam of Light that Lit the Path for Women in Indian Science
- Grammar: Tenses
- Grammar: Active and Passive Voice
- Writing Skills
How to prepare for CBSE board exams
The boards reward consistency over intensity. Because the syllabus is NCERT and the paper is now half competency-based, the students who do best are the ones who understand each chapter well enough to apply it to an unseen case — not the ones who memorised model answers.
- Revise a chapter's key concepts, then immediately practise its MCQs and case-based questions — application is the skill the new pattern tests.
- There is no negative marking, so attempt every question; leave nothing blank.
- Practise assertion-reason and source-based questions deliberately — they are where marks are quietly lost.
- Use full-length board-pattern mock papers to find weak chapters before the exam, then go back and re-drill those.
- Keep NCERT central; supplementary books add breadth but the board paper never leaves the NCERT syllabus.
What the competency-based shift means for you
"Competency-based" simply means the question gives you a situation — a paragraph, a data table, a diagram, or two linked statements — and asks you to reason with a concept rather than reproduce it. Roughly half the Class 10 paper and a growing share of Class 12 now work this way. You cannot cram for it; you prepare by practising a lot of applied questions per chapter so the reasoning becomes automatic. That is the single biggest change in how to study for CBSE boards today.
CBSE Boards — frequently asked questions
What is the CBSE Class 10 board exam pattern for 2027?+
About 50% of the Class 10 paper is competency-based (case-based, source-based, assertion-reason and applied MCQs), around 20% is objective MCQs, and roughly 30% is short and long constructed-response answers. There is no negative marking, and the paper follows the NCERT syllabus.
What is the CBSE Class 12 board exam pattern?+
The Class 12 paper is roughly 30% competency-based questions, 20% MCQs and 50% short and long descriptive answers, on the NCERT syllabus, with no negative marking. The competency share has been rising year on year.
Is there negative marking in CBSE board exams?+
No. CBSE board papers have no negative marking — a wrong answer scores zero — so you should attempt every question, including all MCQs and assertion-reason items.
Are competency-based questions harder?+
They are not harder if you have practised applying concepts, but they are unforgiving of rote learning. A case-based or assertion-reason question tests whether you can use an idea in a new situation, so the fix is simply to practise a lot of applied, chapter-wise questions rather than memorising answers.
Is NCERT enough for CBSE board exams?+
Yes — the CBSE board paper is set on the NCERT syllabus, so a student who has mastered NCERT and practised board-pattern questions on it is well prepared. Supplementary books add practice variety but are not required to score well.
How can I practise for CBSE boards for free?+
XamBaaz offers free Key Concepts revision notes and chapter-wise NCERT MCQs for Class 8–12, plus board-pattern mock papers with case-based and assertion-reason questions and no negative marking — all in a mobile browser with no download.
Start free CBSE Boards practice
Free chapter-wise NCERT MCQs with worked explanations, plus full-length board exam mock papers. No download — it runs in any browser.
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