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CBSE Class 12 Biology Previous Year Question with Detailed Solutions (2016-2025)
Edited By Vishal kumar | Updated on Jul 07, 2025 06:18 PM IST | #CBSE Class 12th
Biology is one of the vital subjects of Class 12 and also the scoring one. This subject is quite important for various exams as well. So, it would be better to get familiar with the types of questions asked in CBSE previous years' question papers for Class 12 Biology, clear all concepts, and work on time management. The CBSE will release the 2026 question paper after conducting the class 12 board examination in 2026. Students can get the CBSE Class 12 Biology question paper 2025 PDF download from this article.
This Story also Contains
- How to Download CBSE 12th Biology PYQs from the Official Website?
- Steps to Download CBSE Class 12 Biology Previous Years' Question Papers
- Download CBSE Class 12 Biology Previous Year Question Paper PDF
- Chapter-wise Weightage for CBSE Class 12 Biology 2026
- Best Reference Books for CBSE Class 12 Biology 2026
- CBSE Class 12 Biology Question Paper Design 2026
- How to Prepare for the CBSE Class 12 Biology Exam 2026?
By familiarising themselves with the biology question papers, students get to know the chapters to concentrate on and how effectively time can be managed to complete the CBSE Class 12 biology question papers in the given duration. Read the entire article to know more about how to download CBSE's previous year's question papers for Class 12 Biology, along with the marking scheme, the best biology reference books for Class 12, and many more.
How to Download CBSE 12th Biology PYQs from the Official Website?
Follow the steps to download the previous years' question papers for Biology from the official website.
- Go to cbse.nic.in and open the official website of CBSE Board.
- Scroll down and click on ‘ Board Examinations’.
- Now select the previous years' question paper option, and it will lead to a new page.
- Now, click on the link of CBSE 12th class question papers of the respective year.
- Search for the Biology subject and click on the respective link.
- CBSE Class 12 Biology Previous Year Question Paper PDF will start to download in a ZIP file.
- Students who do not have a ZIP file opener can use online tools to open the ZIP file and extract files in PDF format.
Steps to Download CBSE Class 12 Biology Previous Years' Question Papers
Students can follow the steps given below to get the CBSE Class 12 Biology previous year question paper PDF download.
- Step 1 - Check the table given below for the links to download the CBSE Biology Class 12 previous years' question papers.
- Step 2 - By clicking on the link, you will be redirected to a new window of careers360.
- Step 3 -Sign in or fill in the login credentials to access the CBSE Class 12 Biology Question Paper PDF of the respective year.
- Step 4 - Click on the ‘download’ button and save the question papers for all years for future reference.
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Download EBookDownload CBSE Class 12 Biology Previous Year Question Paper PDF
Solving previous years' question papers would help students identify frequently asked topics, important concepts, and the typology of questions. Here, we have provided the CBSE Class 12 Biology Previous Year Question Paper PDF. Students can use the links given below to get the CBSE Class 12 Biology previous year question paper PDF download.
Cbse Class 12 Biology Question Paper 2025 PDF Download
Students can get the CBSE Class 12 Biology question paper 2025 PDF download for 3 sets from the links given in the table below:
| CBSE Class 12 Biology Question Paper 2025 (Code-XY1ZW) - Set 1 |
| CBSE Class 12 Biology Question Paper 2025 (Code-XY1ZW) - Set 2 |
| CBSE Class 12 Biology Question Paper 2025 (Code-XY1ZW) - Set 3 |
CBSE Class 12 Question Paper 2024 Biology
Students can download the question paper for 2024 from the following table
CBSE Class 12 Question Paper 2023 Biology
Students can download the question paper for 2023 using the link given below:
CBSE Class 12 Biology Question Paper 2022
Students can download the question paper for 2022 using the link given below:
CBSE Class 12 Question Paper 2020 Biology
Students can download the question paper for 2020 using the link given below:
CBSE Class 12 Question Paper 2019 Biology
Students can download the question paper for 2019 using the link given below:
CBSE Class 12 Question Paper 2018 Biology
Students can download the question paper for 2018 using the link given below:
CBSE Class 12 Question Paper 2017 Biology
Students can download the question paper for 2017 using the link given below:
CBSE Class 12 Question Paper 2016 Biology
Students can download the question paper for 2016 using the link given below:
Chapter-wise Weightage for CBSE Class 12 Biology 2026
The CBSE has released chapter-wise weightage for class 12 Biology for the academic year 2025-26. Students can go through the table given below to identify high-weightage chapters, and also to give more importance to chapters with more weightage.
| Unit | Title | Marks |
| VI | Reproduction | 16 |
| VII | Genetics and Evolution | 20 |
| VIII | Biology and Human Welfare | 12 |
| IX | Biotechnology and Its Applications | 12 |
| X | Ecology and Environment | 10 |
| Total | 70 | |
Best Reference Books for CBSE Class 12 Biology 2026
The following table provides the best reference books for the CBSE class 12 Biology exam. After going through the syllabus and NCERT textbooks, students can read any of these books as they prefer.
| Book Title | Author/Publisher | Key Features |
| Trueman’s Biology Vol I & II | M.P. Tyagi, J.P. Goyal (Trueman) | Detailed theory + ~14,000 MCQs + NEET-type questions |
| All in One Biology Class 12 | Arihant Experts | Chapter-wise theory, NCERT-based questions, and mind maps |
| Together With Biology | Rachna Sagar | NCERT-based theory + sample papers + MCQs |
| S. Chand’s Biology Class 12 | B.P. Pandey | In-depth explanation with diagrams & exercises |
| Oswaal Biology Question Bank | Oswaal Books | Most likely questions, previous year papers, model test papers |
CBSE Class 12 Biology Question Paper Design 2026
Students can go through the following table to get clarity about the question paper design for the academic year 2025-26.
| Competencies | Total |
| Demonstrate Knowledge and Understanding | 50% |
| Application of Knowledge / Concepts | 30% |
| Analyse, Evaluate and Create | 20% |
How to Prepare for the CBSE Class 12 Biology Exam 2026?
Students preparing for the CBSE Class 12 biology exam for 2026 should follow the preparation tips given below to score better marks.
The first thing is to make a proper study timetable and follow it strictly.
Students should also look into CBSE Class 12 Biology Preparation Tips 2026 for effective tips that could be used in their study plan.
Use the best class 12 biology reference books to get clarity on topics and help in practising them.
Start solving CBSE class 12 sample papers to get familiar with the typology of questions and the current marking scheme.
Students should also solve previous years' question papers to understand frequently asked topics and the exam pattern.
Dedicate time to clear all doubts and concepts, and revise theorems regularly.
Also, Read:
Frequently Asked Questions (FAQs)
1. Where can I find the CBSE previous year question papers class 12 Biology?
Students can download CBSE class 12 Biology previous years' question papers from the links provided in this article or the official website of CBSE class 12.
2. How will CBSE class 12 Biology previous year question papers help me?
From past exams it is observed that some questions are repeated from previous year papers. Also, practicing previous year papers can help in knowing a variety of questions that ultimately helps scoring good marks.
3. Is class 12 Biology difficult?
Class 12 Biology is not very difficult. Regular practice and solving CBSE previous year question papers class 12 Biology, along with sample papers, can help in clearing the concepts and scoring good marks in Biology.
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16 min ⋆ Jun 07, 2025 06:06 AM ISTQuestions related to CBSE Class 12th
Have a question related to CBSE Class 12th ?
Changing from the CBSE board to the Odisha CHSE in Class 12 is generally difficult and often not ideal due to differences in syllabi and examination structures. Most boards, including Odisha CHSE , do not recommend switching in the final year of schooling. It is crucial to consult both CBSE and Odisha CHSE authorities for specific policies, but making such a change earlier is advisable to prevent academic complications.
Manasvini Gupta 30 January,2025
Hello there! Thanks for reaching out to us at Careers360.
Ah, you're looking for CBSE quarterly question papers for mathematics, right? Those can be super helpful for exam prep.
Unfortunately, CBSE doesn't officially release quarterly papers - they mainly put out sample papers and previous years' board exam papers. But don't worry, there are still some good options to help you practice!
Have you checked out the CBSE sample papers on their official website? Those are usually pretty close to the actual exam format. You could also look into previous years' board exam papers - they're great for getting a feel for the types of questions that might come up.
If you're after more practice material, some textbook publishers release their own mock papers which can be useful too.
Let me know if you need any other tips for your math prep. Good luck with your studies!
Jefferson 25 September,2024
It's understandable to feel disheartened after facing a compartment exam, especially when you've invested significant effort. However, it's important to remember that setbacks are a part of life, and they can be opportunities for growth.
Possible steps:
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Re-evaluate Your Study Strategies:
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- Practice Regularly: Consistent practice is key to mastering chemistry.
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Consider Professional Help:
- Tutoring: A tutor can provide personalized guidance and support.
- Counseling: If you're feeling overwhelmed or unsure about your path, counseling can help.
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Explore Alternative Options:
- Retake the Exam: If you're confident in your ability to improve, consider retaking the chemistry compartment exam.
- Change Course: If you're not interested in pursuing chemistry further, explore other academic options that align with your interests.
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Focus on NEET 2025 Preparation:
- Stay Dedicated: Continue your NEET preparation with renewed determination.
- Utilize Resources: Make use of study materials, online courses, and mock tests.
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Seek Support:
- Talk to Friends and Family: Sharing your feelings can provide comfort and encouragement.
- Join Study Groups: Collaborating with peers can create a supportive learning environment.
Remember: This is a temporary setback. With the right approach and perseverance, you can overcome this challenge and achieve your goals.
I hope this information helps you.
Kanishka kaushikii 17 September,2024
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Yuvan 30 August,2024
hello mahima,
If you have uploaded screenshot of your 12th board result taken from CBSE official website,there won,t be a problem with that.If the screenshot that you have uploaded is clear and legible. It should display your name, roll number, marks obtained, and any other relevant details in a readable forma.ALSO, the screenshot clearly show it is from the official CBSE results portal.
hope this helps.
Ashvadha 12 July,2024
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