CBSE Board Exams 2026: These Are the Most Important Topics for Class 10 & 12

When you are well aware of which chapters and topics are the most important, it is easier to prepare to the CBSE Board Exams 2026. In Class 10 or Class 12, no matter what you are studying, you always have to start with knowing what to study first and how to revise correctly.

The blog will make you realize the most significant issues in both CBSE classes 10 and 12, as well as tips to be used on a daily basis. 

We are also going to tell you how such tools as a CBSE question bank class 12, a sample question paper CBSE class 12, the best question bank to class 10, and a sample paper book of class 10 can make you revise better in board exams.

⭐ Why Knowing Important Topics Helps You Score More?

The syllabus appears lengthy and students are usually confused. But the fact is, there are some basic chapters of every subject on which the questions are posed time and again.

When you are familiar with these chapters early, you can:

• Revise smarter

• Practice more

• Improve speed

• Score higher in exams

🔥 Important Topics for CBSE Class 10 (2026 Board Exam)

The following is a list of the most important topics in Class 10 subjects in a simple chapter-wise list.

CBSE Class 10 Maths – Most Important Topics

Maths becomes easier when you master high-weightage topics first.

Key Topics:

• Real Numbers

• Polynomials

• Pair of Linear Equations

• Triangles

• Circles

• Trigonometry

• Statistics & Probability

CBSE Class 10 Science – Important Topics for Quick Scoring

Science has three sections: Physics, Chemistry, and Biology.

Most Scoring Topics:

Tip: Many students use the best question bank for class 10 to practice these chapters again and again. This builds speed and accuracy.

CBSE Class 10 Social Science – Key Chapters

How CBSE Class 10 Students Should Revise?

• Learn concepts from NCERT first

• Write answers in your own words

• Solve daily questions

• Practice from a sample paper book of class 10 to see your preparation level

🔥 Important Topics for CBSE Class 12 (2026 Board Exam)

Class 12 is very important because your board marks will help in college admissions. Here are the most important subjects with topics you should revise again and again.

CBSE Class 12 Maths – Topics You MUST Master

• Relations & Functions

• Inverse Trigonometry

• Matrices & Determinants

• Continuity & Differentiability

• Integrals

• Applications of Derivatives

• Probability

Students also revise using a CBSE question bank class 12 to get more confidence while solving different question types.

CBSE Class 12 Physics – Important Topics

Physics looks tough, but these topics have the highest weightage:

• Electrostatics

• Current Electricity

• Moving Charges

• Magnetism

• Electromagnetic Induction

• Ray Optics

• Communication System

CBSE Class 12 Chemistry – Must-Study Topics

Physical Chemistry:

• Mole Concept

• Electrochemistry

• Solutions

• Chemical Kinetics

Organic Chemistry:

• Haloalkanes & Haloarenes

• Alcohols, Phenols, Ethers

• Aldehydes & Ketones

• Amines

Inorganic Chemistry:

• p-Block Elements

• d-Block Elements

• Coordination Compounds

Many students practice these topics using a sample question paper CBSE class 12 to understand the question patterns.

CBSE Class 12 Biology – Key Topics to Score High

• Reproduction in Organisms

• Sexual Reproduction in Flowering Plants

• Genetics & Evolution

• Biotechnology

• Human Health & Diseases

• Ecology

FAQs

Q1. Which topics should I study first for CBSE Board Exams 2026?

Always start with the chapters that are repeated every year. For Class 10, begin with Maths (Trigonometry, Polynomials), Science (Light, Life Processes), and Social Science (Nationalism in India).
For Class 12, start with your subject’s highest-weightage topics such as Integrals, Organic Chemistry, Electrostatics, and Genetics.

Q2. How do I know which topics are important?

Important topics are usually the ones that:

• Are asked every year

• Have more marks weightage

• Are present in multiple sample papers

• Are part of long answers or diagrams

Using tools like a CBSE question bank class 12 or the best question bank for class 10 will help you identify all the repeated topics easily.

Q3. How can I finish my revision faster?

Follow this 3-step method:

1. Learn concepts from NCERT

2. Practice similar questions

3. Solve a sample question paper CBSE class 12 or a sample paper book of class 10

This will help you complete revisions faster without confusion.

Q4. Why should I practice question banks and sample papers?

Because they help you:

• Understand real exam patterns

• Improve writing speed

• Learn how to frame answers

• Check your preparation level

These practice books also include many solved examples that help you revise quickly.

⭐ Tips to Score High in CBSE Board Exams 2026

The following are little but effective habits that can help you to improve your marks:

• Study 2 chapters a day

• Make small notes of formulas

• Revise diagrams twice a week

• Write long answers.

• Time oneself to solve papers.

• Do weekly revision tests

Note: It is better to be consistent than to study too long.

🎯 Final Words

CBSE Board Exams 2026 can be made easier by first concentrating on the key areas and then revising on a regular basis. Both Class 10 and Class 12 students are expected to have a balanced schedule of learning, practicing and answering questions.

Such tools as a CBSE question bank class 12, a sample question paper CBSE class 12, the best question bank for class 10, and a sample paper book of class 10 can help you realize the patterns of the questions and become faster.

Calm yourself, study wisely and keep on revising. You will certainly score high!