Bihar Board Class 12 Chemistry Syllabus
Bihar Board Class 12 Chemistry Syllabus

Bihar School Examination Board (BSEB) has prepared a detailed syllabus for Class 12 Chemistry for the board exam of 2021-22. The new syllabus aims to help students become better in understanding the concepts given in the curriculum of Chemistry. It is a given that students go through the syllabus and analyze it before they actually start studying the subject.

Moreover, a sound understanding, knowledge, and application of chapters and concepts given in Class 12 is important not only for the board exams but for further studies as well. Therefore, in this article, we will take a detailed look at the BSEB Class 12 Chemistry syllabus to better understand what all chapters are to be covered.

Chemistry is one of the most important yet challenging subjects in Class 12. The entire subject of 100 marks is divided into two papers — theory paper of 70 marks and practical of 30 marks. Basics of the subject studied in previous classes will help the students in building a strong base and understanding of the chapters in Class 12. Given below is the chapter and unit-wise distribution of the Class 12 Chemistry syllabus:



Theory Syllabus of Bihar Board Class 12 Chemistry



Sr. No


                    Sub- topics


Solid State-

Classification of solids, unit cell in 2 & 3        dimensional lattices, calculation of density, voids, point defects, electrical, and magnetic properties, Band theory of metals, conductors, semiconductors, insulators and n-p type semiconductors.



Types of solutions, concentration of solids in liquids, Raoult’s law etc    



Kohlrausch’s Law, lead accumulator, dry cell –electrolytic and galvanic cells, EMF, fuel cells, Nernst equation


Chemical Kinetics

Activation energy, rate law and specific rate constant, Arrhenius equation, concept of collision theory, etc.


Surface Chemistry

Mechanism of adsorption, adsorption isotherm, catalysis, macromolecular, multimolecular and
associated colloids, preparation & purification of colloids


General Principles and Processes of Isolation of Elements

Principles and methods of extraction, reduction electrolytic method and refining


p-Block Elements

Group 15 elements, Group 16 elements, Classification of oxides, Group 17 elements, Group 18 elements, etc.


d and f – Block Elements

Lanthanide, Actinoids, first row transition metals, interstitial compounds, alloy formation


Coordination Compounds

IUPAC nomenclature, Werner’s theory, coordination number, magnetic properties, VBT, CFT. isomerism,


Halogen Derivatives of Alkanes and Arenes

Haloalkanes, Haloarenes, stability of carbocations, d-l and R-S configurations.


Alcohols, Phenols and Ethers

Nomenclature, physical and chemical properties, methods of preparation, etc


Aldehydes, Ketones and Carboxylic Acids

Nomenclature, physical and chemical properties, methods of preparation, etc



Amines, Diazonium salts, Cyanides and isocyanides, etc



Carbohydrates, Proteins, Vitamins, Nucleic acids, etc



Classification, methods of polymerization, copolymerization, polythene, bakelite, nylon, polyesters, and rubber, Biodegradable, non-biodegradable polymers


Chemistry in Everyday Life

Chemicals in medicines, Chemicals in food, cleansing agents



Gist of the theory syllabus


From the above table, it can be said that the syllabus is quite comprehensive, and a few chapters are important to study in detail. Especially, chapters such as Electrochemistry, Surface Chemistry, P-block elements, and Amines should be given more time to study. The rest of the chapters also need attention as per the marks allotted. It is interesting to note here that many students in the previous years have said they find chemistry papers not too difficult but tricky.

Therefore, analyzing the syllabus repeatedly and solving previous year question papers is an intelligent approach to studying Chemistry. Also, the subject demands a fair amount of memorization, but the clarity of concepts is as much important.



Q1. How should I prepare for the Bihar Board Class 12 Chemistry Exam?

Ans. Students must be familiar with the exam syllabus, question paper pattern, and they should focus on crucial areas (refer to important questions, sample papers to get an idea), and stick to a study schedule to prepare for the exam. They must also devote a significant amount of time to revising and practicing numerical problems.



Q2. Will the syllabus be reduced for the academic session 2021-22 as well?

Ans: Keeping in mind the Covid-19 restrictions, the BSEB had reduced the syllabus for all the subjects by 25% for the year 2020-21 for the convenience of students. However, no such announcement has been made for the academic session 2021-22. Students are advised to keep visiting the official website of the Bihar Board – to stay updated.




Q3. From where should students prepare for Class 12 Chemistry Exam?

Ans: Students can solve the Class 12 questions from their Bihar Board state text books. They can also go through the last ten years’ question papers to familiarize themselves with the entire coursework. 


Q4. Why is it critical to know the exam’s syllabus ahead of time?

Ans. Knowing the syllabus ahead of time allows students to have a better understanding of the topics, leading to confidence during the exam. It also helps students to improve their time management skills.



Q5. Can students from the Bihar Board clear the IIT-JEE or NEET exam?

Ans. Yes, many BSEB students have achieved good results in JEE/ NEET in the past. If you prepare well for your target examination, you too can clear these prestigious competitive exams with flying colors. All the Best!



Q6. When will the practical exams be held?

Ans. The dates for internal assessment/practical exams will be declared by your school authorities. Students are advised to contact their school exam department for further information