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CBSE Board Exams 2027: Pattern, Syllabus & Free Practice

CBSE Board Examinations (Class 10 & 12)

The CBSE board exams 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 added more and more competency-based questions: case studies, source-based sets, assertion-reason questions and applied MCQs. These test whether you can use a concept, not just remember it.

This page explains the boards: the question pattern for Class 10 and 12, how the move to competency-based questions changes what you should practise, and the NCERT syllabus by subject. You can also start free key-concept notes, chapter-wise MCQs and board-pattern mock papers right now.

CBSE Boards exam pattern at a glance

Conducted by	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 have no negative marking. A wrong answer just scores zero, so attempt every question. The real change to prepare for is the format. About half the Class 10 paper (and a growing part of Class 12) is now competency-based, so answers learnt by heart are no longer enough. Case-based and assertion-reason questions reward students who have practised using each concept. Chapter-wise MCQ practice with worked explanations builds exactly that.

CBSE Boards syllabus & free chapter-wise practice

CBSE follows the NCERT syllabus. So the best way to prepare is to revise each chapter's key concepts, then practise board-style questions on it. 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 main board year here. Class 12 subject practice sits alongside the JEE and NEET tracks.

Class 10 — core subjects

Your first board year. In Maths, Science, Social Science and English, steady chapter-wise practice and lots of case-based questions work better than last-minute cramming.

Class 12 — Science stream

The board year that runs alongside JEE and NEET. The same NCERT chapters count for both, so board practice and entrance practice help each other. English Core is compulsory too.

Class 11 — the year before the board

It has no board exam of its own, which is exactly why students let it slip. Class 11 carries a large share of the Class 12 syllabus in Physics, Chemistry and Maths. English and Computer Science both carry straight on into the board year.

Foundation — Class 8 & 9

These years decide how hard the boards feel. Strong NCERT basics in Class 8 and 9 are the easiest 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.

Class 10 Mathematics

Class 10 Science

Class 10 Social Science

Class 12 Computer Science

Class 9 Mathematics

Class 9 Science

Class 9 English

Class 9 Social Science

Class 8 Mathematics

Class 8 Science

Class 8 Social Science

Class 8 English

How to prepare for CBSE board exams

The boards reward steady work more than last-minute pressure. The syllabus is NCERT, and half the paper is now competency-based. So the students who do best understand each chapter well enough to use it on a case they have never seen. Memorising model answers is not enough.

Revise a chapter's key concepts, then straight away practise its MCQs and case-based questions. Using what you know 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 on purpose. This is where marks are lost without you noticing.
Use full-length board-pattern mock papers to find your weak chapters before the exam. Then go back and practise those again.
Keep NCERT at the centre. Extra books add variety, but the board paper never goes outside the NCERT syllabus.

Competency-based, case study and assertion–reason questions

"Competency-based" simply means the question gives you a situation: a paragraph, a data table, a diagram, or two linked statements. Then it asks you to think with a concept, not just repeat it. About half the Class 10 paper and a growing part of Class 12 now work this way. You cannot cram for it. You prepare by practising many applied questions per chapter, until the thinking comes easily. That is the biggest change in how to study for CBSE boards today.

The two formats you will meet most are case study questions and assertion–reason questions. A case study (case-based) question gives you a short passage, data table or source, then asks a few questions that can only be answered by using a concept from the chapter. An assertion–reason question gives two statements, an Assertion (A) and a Reason (R), and asks whether each is true and whether R correctly explains A. On XamBaaz, every Class 10 Social Science chapter and several Class 9 Social Science chapters include these formats in their question bank, and the board-pattern mock papers mix them with regular MCQs, each with a worked explanation.

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 share of competency-based questions has been rising every year.

Is there negative marking in CBSE board exams?+

No. CBSE board papers have no negative marking. A wrong answer scores zero, so attempt every question, including all MCQs and assertion-reason questions.

Are competency-based questions harder?+

Not if you have practised using concepts. But they are hard on students who only learn by heart. A case-based or assertion-reason question tests whether you can use an idea in a new situation. So the fix is simple: practise lots of applied, chapter-wise questions instead of memorising answers.

What are assertion–reason and case study questions in CBSE?+

An assertion–reason question gives two statements, an Assertion (A) and a Reason (R). You decide whether each is true and whether R correctly explains A. A case study (case-based) question gives a short passage, table or source and asks questions you answer by applying a concept from the chapter. Both are part of the competency-based share of the CBSE paper.

Is NCERT enough for CBSE board exams?+

Yes. The CBSE board paper is set on the NCERT syllabus. A student who knows NCERT well and has practised board-pattern questions on it is well prepared. Extra books add variety to your practice, but you do not need them to score well.

How can I practise for CBSE boards for free?+

XamBaaz has free Key Concepts revision notes and chapter-wise NCERT MCQs for Class 8–12. It also has board-pattern mock papers with case-based and assertion-reason questions and no negative marking. It all works in a mobile browser, with nothing to 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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