The CBSE exam class 12 is not just another board exam. It plays a direct role in your college admissions, entrance exams and your career. After training lakhs of students across India, one thing is very clear to us at Aakash.
You do not get marks in Class 12 only from studying everything. You get it from studying the right things.
The CBSE Class 12 syllabus 2025–26 is vast. So the time you have before the exam always feels short. This is why knowing the important chapters and scoring topics becomes crucial.
Let us see the chapters that can help you score better marks.
CBSE Class 12 Board Exam 2026: What Students Must Know
Before jumping into subjects, keep these in mind before you start preparing:
- All questions are set strictly from the CBSE class 12 syllabus 2025-26
- Your concept clarity is tested more than your memory
- Prepared students are always rewarded with marks
- Step-by-step answers written with correct terms and words get marks
Class 12 Physics Chapters
Physics can feel difficult for many students. But in board exams, clear answers matter more. So you need to focus on that instead of writing fast. Based on past papers and marking rules, you need to focus on these class 12 Physics chapters:
Important Topics You Need to Focus On
- Electrostatics
- Current Electricity
- Magnetic Effects of Current and Magnetism
- Electromagnetic Induction & AC
- Ray Optics and Wave Optics
- Semiconductor Electronics
- Atoms and Nuclei
- Electronic Devices
- Communication Systems
- Dual Nature of Radiation and Matter
Important Exam Tips You Can Follow
- Numerical questions are easy to solve when you use the correct formula
- Diagrams can give you quick marks, especially in Optics and Magnetism
- Correct units and final answers are as important as the steps used in them
Chemistry Class 12 Chapters
In Chemistry, the board exam paper is mostly based on the NCERT. You can find almost the same question patterns. Every reaction, condition and example is important. The following are very important Chemistry class 12 chapters you need to focus on:
Important Topics You Need to Focus On
- Solutions
- Electrochemistry
- Chemical Kinetics
- Coordination Compounds
- Haloalkanes and Haloarenes
- Alcohols, Phenols, and Ethers
- Biomolecules
- The d- and f-Block Elements
- Aldehydes, Ketones, and Carboxylic Acids
- Polymers
Important Exam Tips You Can Follow
- Write reactions and answers exactly as in the NCERT
- You need to learn the patterns and not just single facts
- Do not use shortcuts or other tricks
Class 12 Biology Chapters
You might take Biology lightly. But if studied well, it can really help you to increase your marks. These class 12 Biology chapters are always important:
Important Topics You Need to Focus On
- Reproduction in Organisms
- Principles of Inheritance and Variation
- Molecular Basis of Inheritance
- Biotechnology and Its Applications
- Ecosystem and Biodiversity
- Genetics and Evolution
- Biology and Human Welfare
- Ecology and Environment
- Human Health & Disease
- Evolution
Important Exam Tips You Can Follow
- Use keywords exactly as given and taught
- Keep your answers structured and neat
- Your diagrams should be clean and well-labelled
Class 12 Maths Chapters
Maths is not about solving many questions. It is about quickly understanding what kind of question you are answering. The following class 12 Maths chapters are the important ones you need to focus on:
Important Topics You Need to Focus On
- Algebra
- Calculus
- Relations and Functions
- Applications of Derivatives
- Differentiation
- Integrals and Applications of Integrals
- Matrices and Determinants
- Probability
- Linear Programming
Important Exam Tips You Can Follow
- Always practise standard question formats
- You need to write full steps, even for simple questions
- You can revise formulas daily from one sheet, as it can help you
- CBSE Class 12 Board Exam Details
- CBSE Class 12 Date Sheet 2026
- CBSE Class 12 Result Updates
- CBSE Class 12 Syllabus 2026 (All Subjects)
- CBSE Class 12 Biology Syllabus
- CBSE Class 12 Physics Syllabus
- CBSE Class 12 Chemistry Syllabus
- CBSE Class 12 Maths Syllabus
- CBSE Class 12 Sample Papers with Solutions
- CBSE Class 12 Biology Sample Question Papers
- CBSE Class 12 Chemistry Sample Question Papers
- CBSE Class 12 Maths Sample Question Papers
- CBSE Class 12 Previous Year Question Papers with Solutions
How Can You Prepare Smartly for the Last Few Months
At Aakash, we always tell students this one simple thing. Board exams need calm and planned preparation. They do not want you to panic and hurry.
What you should do:
- Start by revising the important chapters first
- Solve the previous year’s questions chapter by chapter
- Check your mistakes carefully and correct them
- Do not start new books in the last few months
This method helps you save time, reduce stress and focus only on what truly is important in your CBSE exam class 12.
Summing Up
The CBSE class 12 syllabus 2025-26 can feel difficult for you. But it becomes manageable and easier when you break it into small parts. You do not need to study more. You just need to study smarter.
Trust the process, focus on the important chapters, practise writing answers and you need to always be consistent. That is how board toppers are made.
FAQs
Q1. Where can I find the official CBSE Class 12 syllabus 2025-26?
You can download the official syllabus from the CBSE website. You can also get subject-wise syllabus PDFs from Aakash for easy revision.
Q2. Are NCERT books enough for the CBSE exam class 12?
Yes. NCERT books are the main source for all board questions. You need to focus on them the most, as they are the official books you need to strictly follow. You should only use other books for extra practice and not for final learning.
Q3. How important are previous year question papers for class 12 boards?
Very important. They help you understand question patterns, marking schemes and common mistakes. So focusing on them is important for your preparation.
