Bihar Board Class 12 exams 2027 is expected to be conducted in February 2027. Students preparing for the Bihar Board Inter exams can check the Important Chapters for Bihar Board 12th Exams - Subjects-wise Chapters List and high weightage topics on this page.
Important Chapters for Bihar Board Class 12th Exams - Subjects-wise Chapters List
Important Chapters for Bihar Board Class 12th Exams - Chapters List for Maths, Physics, Chemistry, Biology, Arts and Commerce Papers: The Bihar Board Class 12 exam 2027 is a big stage for the students preparing for further studies and competitive exams. With the right strategy and focus on Important Chapters for Bihar Board Class 12th Exams (Science, Arts and Commerce Stream), students can perform well and secure desired marks in the final BSEB Class 12th board exams. The Bihar School Examination Board (BSEB) prescribed the BSEB Inter exam pattern that includes objective (MCQs) and subjective questions in all subjects, including Physics, Chemistry, Biology, Mathematics, History, Sociology, and Business Studies.
Most theory papers are held for 70 marks and practicals are conducted 30 marks, while other subject theory exams are conducted for 100 marks. In this article, we highlight Important and most-scoring chapters of Bihar Board Inter Maths, Biology, Physics, Chemistry, and core Arts & Commerce subjects based on the latest Bihar Board class 12 syllabus 2027 and BSEB Inter exam pattern.
The Bihar School Examination Board has already announced the Bihar Board Inter exam date 2027. The Bihar Board exam 2027 class 12 was conducted from February 2 to February 13, 2027.
- Important Chapters for Bihar Board Class 12th Exams - Chapters List & Weightage for Mathematics
- Important Chapters for Bihar Board Inter Exams - Chapters List & Weightage for Physics
- Important Chapters for Bihar Board Inter Exams - Chapters List & Weightage for Chemistry
- Important Chapters for Bihar Board Inter Exams - Chapters List & Weightage for Biology
- Important Chapters & Topics for Bihar Board Class 12th Exams- Exam Pattern for BSEB Class 12th Arts Subjects
- Important Chapters & Topics for Bihar Board Class 12th Exams- Exam Pattern for BSEB Class Inter Commerce Subjects
- Most Scoring Chapters and Topics in Bihar Board Class 12th Maths Subject
- Most Scoring Chapters and Topics in BSEB Class 12th Physics and Chemistry Subjects
- Most Scoring Chapters and Topics in Bihar Board 12th Commerce Subjects
- Most Important & Scoring Chapters in Bihar Board Class 12th Arts Subjects
Important Chapters for Bihar Board Class 12th Exams - Chapters List & Weightage for Mathematics
Students can check the BSEB Class 12th chapters/units for Maths in the table below:
| Unit |
Marking scheme |
|---|---|
| Relations and Functions |
10 |
| Algebra |
13 |
| Calculus |
40 |
| Vectors and 3 Dimensional Geometry |
18 |
| Linear Programming |
9 |
| Probability |
10 |
Also Read: Bihar Board 12th Model Papers 2026 (Available): Download BSEB Class 12 Sample Papers
Commonly asked questions
Bihar Board released the BSEB 12th Syllabus on its official website. Students preparing for the BSEB Intermediate exams 2027 can check the BSEB 12th Syllabus from the official website. Moreover, we have also provided a direct link to check the subject-wise syllabus on our separate syllabus page.
The Bihar School Examination Board (BSEB) has released the BSEB class 12 syllabus 2027. The board released the updated syllabus for the Bihar Board class 10 exams online on its website in June 2026. As it has been unannounced officially, the students can check the same online on the official website and on our separate BSEB 12th syllabus page.
After analyzing the class 12 syllabus of CBSE and other board, it iseasy to say the BSEB 12th syllabus is similar to other state board syllabus. Also, it can be considered moderate in difficulty.Bihar Board Inter syllabus covers all the topics as prescribed by the national textbooks. If students follow a study schedule then all the topics included in it can be easily covered and the students can score desired marks in the BSEB 12th exams.
Important Chapters for Bihar Board Inter Exams - Chapters List & Weightage for Physics
We have also provided the unit-wise marking scheme for Bihar Board class 12th Physics subject in the table below:
| Units |
Marking Scheme |
|---|---|
| Electrostatics |
08 |
| Current Electricity |
07 |
| Magnetic effect of Current and Magnetism |
08 |
| Electromagnetic Induction and Alternating Current |
08 |
| Optics |
04 |
| Dual Nature of Matter |
04 |
| Atoms and Nuclei |
06 |
| Electronic Devices |
07 |
| Communication Systems |
07 |
| Electromotive Waves |
03 |
Important Chapters for Bihar Board Inter Exams - Chapters List & Weightage for Chemistry
The students can check the unit-wise marking scheme for Bihar Board Inter Chemistry paper in the table below:
| Units |
Marking Scheme |
|---|---|
| Solid State |
04 |
| Solutions |
05 |
| Electrochemistry |
05 |
| Chemical Kinetics |
05 |
| Surface Chemistry |
04 |
| General Principles and Processes of Isolation of Elements |
03 |
| p-block Elements |
08 |
| d and f-block elements |
05 |
| Coordination Compounds |
03 |
| Haloalkanes and Haloarenes |
04 |
| Alcohols, Phenols, and Ethers |
04 |
| Aldehydes, Ketones, and Carboxylic Acids |
06 |
| Organic Compounds and containing Nitrogen |
04 |
| Biomolecules |
04 |
| Polymers |
03 |
| Chemistry in Everyday Life |
03 |
BSEB 12th aspirants in All India like these B.Tech colleges
Students like you from All India who showed interest in BSEB 12th also showed interest in these B.Tech colleges
Want better recommendations?
There is a 90% more chance of getting best college recommendations by sharing preferences.
- Chat with our counselor
- Get your personalised list of colleges & exams matching your preferences
Important Chapters for Bihar Board Inter Exams - Chapters List & Weightage for Biology
The space below table mentions the unit-wise marking scheme for BSEB class 12 Biology paper along with the important chapters:
| Unit |
Marks Weightage |
Important Chapters |
|---|---|---|
| Reproduction |
6 Marks |
Sexual Reproduction in Flowering Plants, Human Reproduction, Reproductive Health |
| Genetics & Evolution |
18 Marks |
Principles of Inheritance and Variation, Molecular Basis of Inheritance, Evolution |
| Biology & Human Welfare |
18 Marks |
Human Health and Disease, Microbes in Human Welfare, Strategies for Enhancement in Food Production |
| Biotechnology & Its Applications |
18 Marks |
Biotechnology: Principles and Processes, Biotechnology and Its Applications |
| Ecology & Environment |
10 Marks |
Organisms and Populations, Ecosystem, Biodiversity and Conservation, Environmental Issues |
Important Chapters for Bihar Board Class 10th Exams - Subjects-wise Chapters List
Important Chapters & Topics for Bihar Board Class 12th Exams- Exam Pattern for BSEB Class 12th Arts Subjects
In the table below, the students can check the exam pattern for Arts papers:
| Subjects |
Full Marks |
Theory |
|---|---|---|
| History |
100 |
100 |
| Political Science |
100 |
100 |
| Psychology |
100 |
70 |
| Geography |
100 |
70 |
Also Read: Important Chapters for Bihar Board Class 10th Exams - Subjects-wise Chapters List
Important Chapters & Topics for Bihar Board Class 12th Exams- Exam Pattern for BSEB Class Inter Commerce Subjects
We have also provided the exam pattern for the BSEB class 12 commerce subjects in the table below:
| Subjects |
Full Marks |
Theory |
|---|---|---|
| Accountancy |
100 |
100 |
| Business Studies |
100 |
100 |
| Economics |
100 |
100 |
| Entrepreneurship |
100 |
70 |
Most Scoring Chapters and Topics in Bihar Board Class 12th Maths Subject
Mathematics is the most important and one of the toughest subject in BSEB Inter exams. These are the most important and scoring chapters in Bihar Board class 12th Maths subjects:
| Unit |
Important Chapters / Topics |
|---|---|
| Relations & Functions |
Relations, Types of Functions, Inverse Functions |
| Algebra |
Matrices, Determinants |
| Calculus |
Continuity & Differentiability, Applications of Derivatives, Integrals, Differential Equations |
| Vectors |
Vector Algebra, Scalar & Vector Products |
| Three-Dimensional Geometry |
Direction Cosines, Direction Ratios, Equation of Line & Plane |
| Linear Programming |
Graphical Method, Feasible Region, Optimal Solution |
| Probability |
Conditional Probability, Bayes’ Theorem |
| Statistics |
Mean, Variance, Standard Deviation |
Most Scoring Chapters and Topics in BSEB Class 12th Physics and Chemistry Subjects
The students can find the most important chapters/topics of Bihar Board Class 12 Chemistry and Physics papers in the table below:
| Subject |
Important Chapters / Units |
|---|---|
| Physics |
Electrostatics & Current Electricity; Magnetism & Electromagnetic Induction; Optics; Atoms & Nuclei; Electronic Devices |
| Chemistry |
Electrochemistry; Chemical Kinetics; Organic Chemistry (Alcohols, Phenols, Aldehydes); Coordination Compounds; Biomolecules |
Most Scoring Chapters and Topics in Bihar Board 12th Commerce Subjects
The students can check the most scoring chapters/topics of Bihar Board Inter Commerce topics in the table below:
| Subject |
Important Chapters / Units |
|---|---|
| Accountancy |
Partnership Accounts (Admission, Retirement, Dissolution); Company Accounts (Share Capital, Debentures); Financial Statements; Ratio Analysis; Cash Flow Statement |
| Business Studies |
Principles of Management; Business Environment; Marketing Management; Financial Management |
| Economics |
Consumer Behaviour & Production; Market Structures; National Income & Money Banking; Government Budget; Open Economy |
| Mathematics / Entrepreneurship |
Calculus Basics; Probability; Business Mathematics; Small Business & Entrepreneurship |
Most Important & Scoring Chapters in Bihar Board Class 12th Arts Subjects
We have mentioned the most scoring chapters/units of Bihar Board Class 12 Arts topics in the table below:
| Subject |
Important Chapters / Units |
|---|---|
| History |
Ancient Civilisations; Medieval India; Modern Indian History; Cultural & Social History |
| Geography |
Human Geography; Resources & Development; Transport & Communication; Map Work |
| Political Science |
Cold War & Post-Cold War Era; International Organisations; Contemporary South Asia; Globalisation |
| Psychology |
Developmental Psychology; Human Behaviour; Learning & Intelligence |
| Sociology |
Social Institutions; Culture & Society; Social Change |
| Languages (English/Hindi) |
Reading Comprehension; Writing Skills; Grammar; Prose & Poetry |
The students are advised to cover all the Important Chapters for the Bihar Board Class 12th Subjects as mentioned above. Apart from this, they should also practice the BSEB Intermediate model papers 2027 and previous years' Bihar Board Class 12th Exam Question Papers.
News & Updates
Student Forum
Anything you would want to ask experts?
Shahzad carries over 9 years of editorial experience in various domains of the education sector, including but not limited to Boards, Engineering, Medical, MBA, and many more. He has been helping students by providi
Read Full Bio