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Bihar Board 12th Biology Answer Key 2026 (Feb 2) - Download Set-Wise PDF
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The Bihar School Examination Board (BSEB) conducted the Class 12 Biology theory exam on Monday, February 2, 2026. The Bihar Board Class 12 biology exam ended at 12:45 pm. The board released the official Bihar Board 12th biology 2026 answer key after all examinations on February 28, 2026. Students can download the Bihar Board Class 12 answer key for all sets (A, B, C, D, E, F, G, H, I, and J).
BSEB Class 12 Answer Key: Download Link
This Story also Contains
- Important Dates for BSEB 12th Biology Answer Key 2026
- How to Download the Official Bihar Board 12th Biology Answer Key?
- Objection with Bihar Board Class 12 Biology Answer Key
- Bihar Board 12th Biology Exam Pattern 2026
Many institutes and subject experts released the unofficial BSEB Class 12 biology answer key after the exam. Students can use the MCQ answers to estimate their scores before the official BSEB 12th results are declared. If there is any discrepancy in the official BSEB 12th Biology answer key, candidates are also allowed to raise objections till March 6, 2026.
Bihar Board 12th Biology Answer Key (Set A to J): Check Answers Here
Set Wise Unofficial BSEB 12th Biology Answer Key 2026
| Set | Answer Key Link |
|---|---|
BSEB Class 12 Biology answer key link for Set A | |
BSEB Class 12 Biology answer key link for Set B | |
BSEB Class 12 Biology answer key link for Set C | Available soon |
BSEB Class 12 Biology answer key link for Set D | |
BSEB Class 12 Biology answer key link for Set E | |
BSEB Class 12 Biology answer key link for Set F | |
BSEB Class 12 Biology answer key link for Set G | Available soon |
BSEB Class 12 Biology answer key link for Set H | Available soon |
BSEB Class 12 Biology answer key link for Set I | |
BSEB Class 12 Biology answer key link for Set J |
Important Dates for BSEB 12th Biology Answer Key 2026
Students can prepare using the recently released official BSEB 12th model papers and Bihar Board inter previous year solutions to understand the marking scheme and expected answers. Students can download the 2026 Bihar Board Class 12 Biology answer key for the latest exam for sets A-J in PDF format.
| Event | Date |
|---|---|
Bihar Board 12th Biology exam date | February 2, 2026 (9:30 AM - 12:45 PM) |
Unofficial BSEB 12th Biology answer key | February 2, 2026 (Afternoon) |
Official Bihar Board Class 12 Biology Answer Key | February 28, 2026 |
Bihar Board 12th objection window date | Till March 6, 2026 |
Last week of March 2026 |
How to Download the Official Bihar Board 12th Biology Answer Key?
The official BSEB Class 12 biology answer key PDF can be downloaded from the Bihar Board’s website. Follow these steps to get the official Bihar Board 12th Biology answer key PDF from the BSEB portal:
Visit the official website: biharboardonline.bihar.gov.in.
Look for the link "Register objection regarding answer key (Inter exam 2026)".
Enter the roll code and roll number.
Select 'Biology' from the subject list.
The Bihar Board 12th answer key for all sets (Sets A to J) will appear in PDF format.
Objection with Bihar Board Class 12 Biology Answer Key
BSEB 12th Biology answer keys have been released on the board’s portal (e.g., objection.biharboardonline.com) on February 28, 2026. Students can raise objections against the Bihar Board 12th provisional answer key till March 6, 2026. After checking and fixing any errors reported by students, the board will issue the final version of the Class 12 Bihar Board Biology answer key.
Also, check
Bihar Board Class 12th Question Paper's 2025
Prepare smartly with BSEB 12th Question Papers 2025. Understand the exam pattern, marking scheme, and important questions.
Download NowBihar Board 12th Biology Exam Pattern 2026
The Bihar Board 12th Bio exam consists of 100 marks (70 Theory + 30 Practical). The theory paper is divided into two sections:
Section A (MCQs): It contains 70 objective questions; students must answer any 35. Each carries 1 mark.
Section B (Subjective): It includes short and long-answer questions totalling 35 marks.
Frequently Asked Questions (FAQs)
Q: What is the Bihar Board 12th Biology Answer Key 2026?
A:
The Bihar School Examination Board (BSEB) releases the answer key for the Class 12 Biology exam to help students check and match their answers after the exam. Students can use it to estimate their score before the official BSEB 12th result comes out.
Q: What does the Bihar Board biology answer key 2026 include?
A:
The Bihar Board Class 12 Biology answer key provides objective (MCQ) answers for each set of the Biology question paper. It will cover only the objective section. The BSEB 12th biology subjective answers are evaluated by examiners later.
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Questions related to Bihar Board 12th
On Question asked by student community
Have a question related to Bihar Board 12th ?
Hi Rupam Kumari,
You can get the Bihar board Class 12 Hindi answer key by visiting the Careers360 website.
Dear Student,
Please download Bihar Board 12th Biology Question Paper 2026 PDF
Dear Student,
Please check Bihar Board 12th Chemistry Question Paper 2026 PDF (Feb 7) with Solutions
Hi,
You can check Bihar Class 12 Board English 2023 Question Paper by visiting the Careers360 page.
The Bihar Board Class 12th exam centre list will be released soon on the official website at secondary.biharboardonline.com. You can get the details of your centre from the BSEB 12th admit card 2026 as well. It includes the exam centre name, centre code, and other important details as well.
Applications for Admissions are open.
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