Sign in
Profile
Signout
Bihar Board 12th Chemistry Model Paper 2025-26
Bihar Board 12th Chemistry Model Paper 2025-26: Here is a Chemistry Model Paper with Solutions for students preparing for the Bihar Board (BSEB) Class 12th examination in 2026.
By practicing with this model paper, you can score good marks in the board exam. This model paper is designed according to the latest exam pattern and syllabus of the Bihar Board.
Step-by-step solutions are provided for all questions to make it easier for students to understand. You can download the Bihar Board 12th Chemistry Model Paper 2025-26 with Solutions in PDF format for free from the links given below.
Bihar Board 12th Chemistry Model Paper 2025-26: PDF Download Links
Bihar Board 12th Chemistry Model Paper 2025-26: Exam Pattern (Official)
The official pattern for the Bihar Board 12th Chemistry exam is as follows:
| विवरण (Details) | जानकारी (Information) |
|---|---|
| Board | BSEB (Bihar Board) |
| Class | 12th (Intermediate) |
| Subject | Chemistry (रसायन शास्त्र) |
| Subject Code | 118 |
| Full Marks | 70 |
| Total Questions | 96 |
| Exam Duration | 3 Hours 15 Minutes |
| Paper Type | Objective + Subjective |
| Sections | Section A + Section B |
| Passing Marks | 33% |
| Negative Marking | No |
Bihar Board 12th Chemistry Model Paper 2025-26: Question Paper Pattern (Official)
| Section | Question Type | Total Questions | Attempt | Marks Each | Total Marks |
|---|---|---|---|---|---|
| Section A | Objective (MCQ) | 70 | 35 | 1 Mark | 35 Marks |
| Section B | Short Answer | 20 | 10 | 2 Marks | 20 Marks |
| Section B | Long Answer | 6 | 3 | 5 Marks | 15 Marks |
| Total | - | 96 | 48 | - | 70 Marks |
Section A: Objective Questions (OMR Based) – Official Pattern
| Details | Information |
|---|---|
| Question Type | Objective (MCQ) |
| Total Questions | 70 |
| Questions to Attempt | 35 |
| Marks per Question | 1 Mark |
| Total Marks | 35 Marks |
| Answer Sheet | OMR Sheet |
| Pen to Use | Blue/Black Ball Pen |
| Evaluation | First 35 answers evaluated if more attempted |
Important Instructions for Section A:
- Section "A" contains 70 objective questions, out of which answering any 35 questions is compulsory.
- If a candidate answers more than 35 questions, only the first 35 answers will be evaluated.
- Each question carries 1 mark.
- Darken the correct option given in the OMR answer sheet using a black/blue ballpoint pen.
- The use of any type of whitener/liquid/blade/fingernails, etc., on the OMR answer sheet is prohibited; otherwise, the examination result will be invalidated.
Section B: Subjective Questions – Official Pattern
| Question Type | Total Questions | Attempt | Marks Each | Total Marks |
|---|---|---|---|---|
| Short Answer (2 Marks) | 20 | 10 | 2 Marks | 20 Marks |
| Long Answer (5 Marks) | 6 | 3 | 5 Marks | 15 Marks |
| Total | 26 | 13 | - | 35 Marks |
Important Instructions for Section B:
- Section 'B' contains 20 short answer questions. Each question carries 2 marks, and answering any 10 of these questions is compulsory.
- In addition, this section contains 6 long answer questions, each carrying 5 marks, and answering any 3 of these questions is compulsory.
Bihar Board 12th Chemistry 2025-26: Marks Distribution
| Part | Marks | Percentage |
|---|---|---|
| Objective (Section A) | 35 Marks | 50% |
| Subjective (Section B) | 35 Marks | 50% |
| Total Theory | 70 Marks | 100% |
Complete Marks Distribution:
| Component | Marks |
|---|---|
| Theory (Written Exam) | 70 Marks |
| Practical | 30 Marks |
| Grand Total | 100 Marks |
Bihar Board 12th Chemistry 2025-26: Chapter-wise Weightage
| Chapter | Expected Weightage |
|---|---|
| Solid State (ठोस अवस्था) | 4-5 Marks |
| Solutions (विलयन) | 5-6 Marks |
| Electrochemistry (वैद्युत रसायन) | 6-7 Marks |
| Chemical Kinetics (रासायनिक बलगतिकी) | 5-6 Marks |
| Surface Chemistry (पृष्ठ रसायन) | 3-4 Marks |
| General Principles and Processes of Isolation of Elements (तत्वों के निष्कर्षण के सिद्धांत एवं प्रक्रम) | 4-5 Marks |
| p-Block Elements (p-ब्लॉक तत्व) | 6-7 Marks |
| d and f Block Elements (d और f ब्लॉक तत्व) | 5-6 Marks |
| Coordination Compounds (उपसहसंयोजन यौगिक) | 5-6 Marks |
| Haloalkanes and Haloarenes (हैलोएल्केन तथा हैलोएरीन) | 4-5 Marks |
| Alcohols, Phenols and Ethers (एल्कोहल, फीनॉल एवं ईथर) | 4-5 Marks |
| Aldehydes, Ketones and Carboxylic Acids (एल्डिहाइड, कीटोन एवं कार्बोक्सिलिक अम्ल) | 5-6 Marks |
| Amines (एमीन) | 4-5 Marks |
| Biomolecules (जैव अणु) | 3-4 Marks |
| Polymers (बहुलक) | 2-3 Marks |
| Chemistry in Everyday Life (दैनिक जीवन में रसायन) | 2-3 Marks |
Bihar Board 12th Chemistry 2025-26: Marking Scheme
| Question Type | Marks | Marking Method |
|---|---|---|
| Objective (MCQ) | 1 Mark | Correct answer = 1 mark |
| Short Answer (2 Marks) | 2 Marks | Step-wise marking |
| Long Answer (5 Marks) | 5 Marks | Step-wise marking with diagrams |
Detailed Marking Criteria:
| Question Type | Marking Criteria |
|---|---|
| MCQ (1 Mark) | Full marks for the correct answer. |
| Short Answer (2 Marks) | Formula - 0.5 points, Process - 1 point, Correct answer - 0.5 points |
| Long Answer (5 Marks) | Definition/Formula - 1 mark, Diagram - 1 mark, Explanation - 2 marks, Conclusion - 1 mark |
Important Tips for Exam Preparation (परीक्षा की तैयारी के लिए महत्वपूर्ण टिप्स)
- Read the NCERT textbook thoroughly.
- Practice with model papers regularly.
- Solve previous year's questions.
- Memorize chemical equations and reactions.
- Pay special attention to name reactions in Organic Chemistry.
- Practice numerical problems.
- Manage your time effectively
Home
Quiz
Short News
Web Story
Get latest Exam Updates 
