BSEB 12th Science Syllabus 2025: Download Subject-wise BSEB 12th Board Syllabus PDF

Bihar School Examination Board 12th 2026 ( BSEB 12th )

DeskCalelnderExam On - 2 May '26 - 11 May '26

This exam is conducted for courses given below:
Md Shahzad
Updated on Jul 24, 2023 17:52 IST

By Md Shahzad, Senior Executive - Content

The Bihar School Examination Board (BSEB) releases the BSEB 12th Science Syllabus 2024. The board will soon release the Bihar Board 12th Syllabus Sceince for the students preparing for the BSEB exams 2024. BSEB will release BSEB Syllabus Science 2024 for Class 12 on its official website. We also provide the same on this page. Usually, the chance of any change in the BSEB 12th syllabus 2024 for Scrince is very less. However, we will update the page in case of any changes made by the board. Students must go through the entire syllabus along with the marking scheme provided through the BSEB Class 12 Science exam pattern and study accordingly. The Bihar Board Class 12 Science stream Syllabus includes Physics, Chemistry, Biology, and English, among other subjects.

Students must complete the syllabus well in time so as to leave ample time towards the end for revision. They must keep making notes of all the important things to keep them handy for last-minute preparation. Since, Science stream includes numerical, theory as well as diagrams, students must devote equal time to all of these to not leave any aspect untouched and unprepared as the numericals and diagram questions can fetch you a lot of marks.

Students can refer to the Bihar 12th class syllabus provided below:

Table of contents
  • Bihar Board 12th Science Syllabus 2024 for Physics
  • BSEB 12th Science Syllabus 2024 for Chemistry
  • BSEB Class 12 Science Syllabus 2024 for Biology
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Bihar Board 12th Science Syllabus 2024 for Physics

Students must jot down all the important points and the formulas in a small notebook so as to keep them handy at all times. They must also note down all the derivations at one place and revise them regularly. Since Physics has a lot of symbols and notations, it is advised that they memorise them.

Also read: NCERT Solutions for Physics Class 11 preparation

Units

Important Topics and NCERT Solutions

Electrostatics

Electric Charges, Conservation of charge, Coulomb’s law-force between two point charges, forces between multiple charges, the electrical potential energy of a system of two point charges and of electric dipole in an electrostatic field, etc. NCERT Solutions on Static Electricity

Current Electricity

Ohm’s law, electrical resistance, V-I characteristics (linear and nonlinear), electrical energy and power, electrical resistivity and conductivity, Kirchhoff’s laws and simple applications. Wheatstone bridge, metre bridge, etc. NCERT Solutions on electric current

Magnetic effect of Current and Magnetism

Torque on a magnetic dipole (bar magnet) in a uniform magnetic field; bar magnet as an equivalent solenoid, Force on a moving charge in a uniform magnetic and electric fields, Earth’s magnetic field and magnetic elements, etc. NCERT Solutions on Magnetism and Matter

Electromagnetic Induction and Alternating Currents

Electromagnetic induction; Faraday’s law, induced emf and current; Lenz’s Law, peak and RMS value of alternating current/voltage; reactance and impedance, etc. NCERT Solutions on Electromagnetic Induction 

NCERT Solutions on Alternating Current

Electromagnetic Waves

Electromagnetic waves, their characteristics, their transverse nature, Electromagnetic spectrum, including elementary facts about their uses, etc. NCERT Solutions on Electromagnetic Waves

Optics

Refraction of light, total internal reflection and its applications, lensmaker’s formula. Magnification, power of a lens, Reflection of light, spherical mirrors, mirror formula, a combination of thin lenses in contact, etc. NCERT Solutions on Optics

Dual Nature of Matter

Matter waves-wave nature of particles, de Broglie relation, Photoelectric effect, Hertz and Lenard’s observations; Einstein’s photoelectric equation-particle nature of light, Davisson-Germer experiment, etc. NCERT Solution on Matter and Dual Nature

Atoms and Nuclei

Bohr model, energy levels, hydrogen spectrum, Composition and size of nucleus, Alpha-particle scattering experiment; Rutherford’s model of atom; atomic masses, isotopes, radioactive decay law, etc. NCERT Solutions on Atoms

NCERT Solutions on Nuclei

Electronic Devices

transistor as a switch, I-V characteristics of the transistor, transistor as an amplifier (common emitter configuration), the basic idea of analogue and digital signals, etc. NCERT Solution on Electronic Devices

Communication Systems

Propagation of electromagnetic waves in the atmosphere, amplitude modulation.

Production and detection of an amplitude-modulated wave, etc.

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BSEB 12th Science Syllabus 2024 for Chemistry

Chemistry involves a lot of chemical formulas, so one must not forget to revise them on a daily basis, along with practising ray diagrams and solving numerical.

Also read: NCERT Solutions Chemistry Class 11 Preparation

Units

Important Topics and NCERT Solutions

Unit 1: Solid State

Electrical and magnetic properties, Packing efficiency, voids, number of atoms per unit cell in a cubic unit cell, point defects, etc. NCERT Solutions on Solid state

Unit 2: Solutions

Osmotic pressure, determination of molecular masses using colligative properties, Elevation of boiling point, depression of freezing point, abnormal molecular mass, etc NCERT Solutions on Solutions

Unit 3: Electrochemistry

Kohlrausch’s Law, lead accumulator, Conductance in electrolytic solutions, specific, variations of conductivity with concentration, etc.  NCERT Solutions on Electrochemistry

Unit 4: Chemical Kinetics

Integrated rate equations and half-life, the concept of collision theory (elementary idea, no mathematical treatment), etc NCERT Solutions on Chemical Kinetics

Unit 5: Surface Chemistry

Brownian movement, electrophoresis, Lyophobic multimolecular and macromolecular colloids; properties of colloids; Tyndall effect, coagulation, emulsion-types of emulsions, etc NCERT Soluion on Surface Chemistry

Unit 6: General Principles and Processes of Isolation of Elements

Occurrence and principles of extraction of aluminium, copper, zinc and iron, Principles and methods of extraction – concentration, oxidation, reduction – electrolytic method and refining; etc

Unit 7: p-block Elements

Halides PCl3, Ozone, Sulphur-allotropic forms; Phosphorus – allotropic forms, Preparation properties and uses of sulphur-dioxide, etc. NCERT Solutions on p block elements

Unit 8: d and f-block elements

Magnetic properties, interstitial compounds, Metallic character, ionization enthalpy, preparation and properties of K2Cr2O7 and KMnO4, etc NCERT Solutions on d & f Block Elements

Unit 9: Coordination Compounds

IUPAC nomenclature of mononuclear coordination compounds. Bonding, Introduction, ligands, coordination number, Werner’s theory, VBT, and CFT; structure and stereoisomerism, etc NCERT Solutions on Coordination Compounds

Unit 10: Haloalkanes and Haloarenes

Nomenclature, nature of C-X bond, physical and chemical properties, substitution reactions, etc NCERT Solutions on Haloalkanes and Haloarenes

Unit 11: Alcohols, Phenols, and Ethers

Mechanism of dehydration, physical and chemical properties, uses, uses with special reference to methanol and ethanol, etc NCERT Solutions on Alcohols, Phenols, and Ethers

Unit 12: Aldehydes, Ketones, and Carboxylic Acids

Nomenclature, nature of carbonyl group, methods of preparation, physical, uses, methods of preparation, etc NCERT Solutions on Aldehydes, Ketones, and Carboxylic Acids

Unit 13: Amines (Organic Compounds and containing Nitrogen)

Classification, structure, methods of preparation, secondary and tertiary amines, etc NCERT Solutions on Amines

Unit 14: Biomolecules

Monosaccharides (glucose and fructose), polysaccharides (starch, cellulose, glycogen) importance, etc NCERT Solutions on Biomolecules

Unit 15: Polymers

Biodegradable and non-biodegradable polymers, etc, Some important polymers: natural and bakelite, rubber, etc NCERT Solutions on Polymers

Unit 16: Chemistry in Everyday Life

Tranquillizers antiseptics, disinfectants, antacids, antihistamines, artificial sweetening agents, etc

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BSEB Class 12 Science Syllabus 2024 for Biology

For Biology, students must practice diagrams daily. Life cycles are very essential as they form part of the long-answer questions. Given below is the Bihar Board Class 12 Biology Syllabus:

Unit

Important Topics

Unit 1: Sexual Reproduction

Pollination and fertilization in flowering plants

Development of seed and fruit

Human Reproduction, pregnancy and parturition

Unit 2: Genetics and Evolution

Chromosome theory of inheritance, Deviations from Mendelism ratio, Sex determination in human beings: XX, XY, Linkage and crossing over, etc

Unit 3: Biology & human welfare

Microbes in household food processing, industrial production, sewage treatment and energy generation, Cancer and AIDS

Unit 4: Biotechnology and its Applications

Recombinant DNA technology

Applications in Health, Biosafety issues

Unit 5: Ecology and Environment

Organisms and Populations

Ecosystem, and Environmental Issues

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BSEB 12th Exam

Student Forum

chatAnything you would want to ask experts?
Write here...

Answered 22 hours ago

The Bihar School Education Board (BSEB), Patna,  released the Bihar Board Class 12th Compartment Exam Date 2026 on April 13, 2026. As per the announced date, Bihar Board Intermediate compartment exams 2026 will be conducted from May 2 to 11, 2026

M

Md Shahzad

Contributor-Level 10

Answered a month ago

The students who complete the Bihar Board 12th syllabus before the final paper can easily secure marks above 80%. Many students are scoring more than 80 per cent marks in the state in recent years. 

M

Md Shahzad

Contributor-Level 10

Answered a month ago

Maths is considered the most difficult paper in BSEB class 12 exams. Over the past years, the level of Maths paper in BSEB class 12 is moderate to difficult.

M

Md Shahzad

Contributor-Level 10

Answered a month ago

After the release of BSEB Inter Result 2026, students should firsty collect the original mark sheet from their respective schools. Thereafter, they can apply for admission to various professional and undergraduate courses in different universities and colleges across the state as well as in India. S

...Read more

M

Md Shahzad

Contributor-Level 10

Answered a month ago

Yes, the students are notified as soon as the Bihar Board class 12th result is out. The board releases a notification on its handles on social media. The students need to follow the BSEB in social media platforms to get notified about the exam and result related updates. We also provide the latest u

...Read more

M

Md Shahzad

Contributor-Level 10

Answered a month ago

A good marks in BSEB Class 12th exam is generally considered to amore than 75 percet. Students who score above 90 per cent may be included in the list of top performers. 

M

Md Shahzad

Contributor-Level 10

Answered a month ago

Yes, at least a day before the final result, the board announces an exact Bihar Board 12th class result 2026 date and time. As soon as it gets revealed, we will update the same on this page. However, every year, the board releases the BSEB Inter result 2026 in the fourth week of March.

M

Md Shahzad

Contributor-Level 10

Answered a month ago

In the year 2025,  Priya Jaiswal from Bagaha became the topper in Bihar Board 12th Topper List 2025 Science and also across the streams. She secured the 96.8% marks (484/500).

M

Md Shahzad

Contributor-Level 10

Answered a month ago

Yes, every year, the board released the BSEB class 10th result after the Bihar Board 12th result. In 2026, the board announced the BSEB Matric result on March 29, 2026.

M

Md Shahzad

Contributor-Level 10

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