Bihar Board 12th Chemistry Deleted Syllabus 2024-25 Check Chapter Wise Deleted Syllabus
Table of Contents
The BSEB (Bihar School Examination Board) is the authority that determines the syllabus for 12th-grade students in the state. The decision of the Bihar Board 12th Chemistry Deleted Syllabus will help in reducing academic stress in students’ lives. The syllabus reduction can be considered as an educational reform and it will help in streamlining the curriculum. Thus, students preparing for the Bihar Board 12th Exam 2026 should be aware of the Bihar Board 12th Chemistry Deleted Syllabus.
The Bihar Board 12th Deleted Syllabus will help the students focus more on the fundamental topics. Thus, one can create an effective preparation strategy with the reduced syllabus. Furthermore, it will give extra time to prepare for competitive exams like JEE and NEET. Many redundant topics and sub-topics have been deleted from the Bihar Board Chemistry syllabus. Even some overly advanced portions and repetitive concepts have been eliminated for the simplification of the syllabus. Hence, the decision to decrease the syllabus will reduce the workload of students. Detailed mechanisms, low-weightage topics, and lengthy derivations will hold low value this time.
This article discusses all the aspects of the Bihar Board 12th Chemistry Deleted Syllabus. Hence, science stream students must check out the information discussed in upcoming paragraphs.
Bihar Board 12th Chemistry Deleted Syllabus 2026 - Chapter Wise
Keeping the Bihar Board 12th Chemistry Deleted Syllabus in mind will help in avoiding unnecessary preparation. The students will get a chance to focus on scoring topics and a lot of time will be saved in the process. Here is an idea about the chapter-wise deleted topics in the subject of Chemistry -
|
Chapters |
Deleted Topics |
|
Solid State |
Electrical properties Band theory of metals and conductors |
|
Solutions |
Abnormal molar mass Van’t Hoff factor |
|
Electrochemistry |
Fuel Cells and Corrosion |
|
Chemical Kinetics |
Concept of collision theory |
|
Surface Chemistry |
Entire chapter is deleted |
|
General Principles and Processes of Isolation of Elements |
Entire chapter is deleted |
|
The p-Block Element |
Chemical properties of sulphur dioxide Structure of oxoacids of Phosphorus |
|
The d-Block and f-Block Elements |
Color of ions Variation of ionic sizes Comparison of Lanthanoids and Actinoids |
|
Haloalkanes and Haloarenes |
Stereochemistry of SN1 and SN2 reactions |
|
Alcohols, Phenols, and Ethers |
Preparation of phenols from diazonium salts |
|
Amines |
Basicity comparison Hinsberg test |
|
Biomolecules |
Vitamins (classification and functions) Enzymes (only mechanism) |
Also Read: Bihar Board 12th Admit Card
Bihar Board 12th Chemistry Syllabus 2026 PDF
Knowing the Bihar Board 12th Chemistry Deleted Syllabus will help in creating a smart preparation strategy. Students should always follow the updated syllabus pattern while drafting a study plan. The table below provides the PDF for the Bihar Board 12th Chemistry syllabus -
Also Read: Bihar Board 12th Preparation Tips
Bihar Board 12th Chemistry Question Paper Pattern 2026
To prepare for the Bihar Board Chemistry exam in the right way, a student must know the exact exam pattern. The question paper will have two sections named A and B. Section A will consist of objective-type questions and the total weightage will be 35 marks. Section B will comprise short-answer-type and long-answer-type questions and the combined weightage of this section will also be 35 marks. Hence, the total paper will be of 70 marks. The table below specifies the exact Bihar Board 12th Chemistry Question Paper Pattern 2026 -
|
Section |
Number of Questions |
Marks Allotted |
|
|
Section A |
35 questions need to be answered out of 70 questions (objective-type questions) |
35 x 1 = 35 |
|
|
Section B
|
10 questions need to be answered out of 20 (short-answer-type questions) |
10 x 2 = 20 |
|
|
3 questions need to be answered out of 6 (long-answer-type questions) |
3 x 5 = 15 |
||
|
Total Marks |
70 |
||
Also Read: Bihar Board 12th Sample Papers
Bihar Board 12th Chemistry Topics Weightage 2026
Once the students know the Bihar Board 12th Chemistry topics’ weightage, they can prepare a rational study plan. More importance should be given to those topics that have the maximum weightage. Here is the topic-wise weightage table for Bihar Board 12th Chemistry -
|
Topics |
Weightage |
|
Solid State & Solutions |
14% |
|
Electrochemistry & Chemical Kinetics |
16% |
|
p-Block, d and f-Block Elements |
18% |
|
Coordination Compounds |
5% |
|
Haloalkanes and Haloarenes |
8% |
|
Alcohols, Phenols, and Ethers |
8% |
|
Aldehydes, Ketones, and Carboxylic Acids |
9% |
|
Organic Compounds Containing Nitrogen |
7% |
|
Biomolecules, Polymers, Chemistry in Everyday Life |
15% |
Students must realize that these percentages are estimated values based on the findings of the syllabus pattern. For exact knowledge, one must visit the designated websites of the board at biharboardonline.bihar.gov.in and seniorsecondary.biharboardonline.com.
Also Read: Bihar Board 12th Previous Year Question Papers
Benefits of the Bihar Board 12th Chemistry Deleted Syllabus 2026
There are many advantages of the Bihar Board 12th Chemistry Deleted Syllabus. Some of the prime benefits of the reduced syllabus have been listed below –
-
The Bihar Board 12th Chemistry Deleted Syllabus will significantly reduce the academic burden.
-
Fewer topics will help in promoting core learning. Students will get more time to understand fundamental concepts.
-
The saved time can be utilized for the preparation of other competitive exams like JEE and NEET.
-
While preparing from the Chemistry sample papers and previous years’ papers, students can skip the questions from the deleted syllabus.
-
A reduced syllabus will help in making a ration study plan and students will be able to finish off the entire syllabus on time.
-
More attention can be paid to the highest weightage topics. It will improve the scores in the final exam.
-
Teachers will also get some extra time because of the reduced syllabus. They will get a chance to explain the fundamental topics in chemistry in an in-depth manner.
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