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CBSE Class 12 Biology Previous Year Question with Detailed Solutions (2016-2025)
CBSE Class 12 Biology Previous Year Question Paper: 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 has released the CBSE Class 12 Biology Previous Year Question Paper. Students can get the CBSE Class 12 Biology question paper 2025 PDF download from this article or from the official website.
LiveCBSE Board Exam 2026 March 9 LIVE: Class 12 Maths paper 'well-structured and balanced'; analysis, answer keyMar 9, 2026 | 11:10 PM ISTRead More
The overall CBSE class 12th Maths exam 2026 can be considered balanced and moderately difficult. Students with a clear conceptual understanding and regular practice of NCERT and exemplar problems would have found the paper manageable. The question paper was a fair mix of knowledge, application, and analytical questions, reflecting the ongoing shift towards competency-based assessment in school education.
This Story also Contains
- How to Download CBSE 12th Biology PYQs from the Official Website?
- CBSE Class 12 Biology Previous Year Question Paper: Download 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?
- Benefits of Solving the CBSE Class 12 Biology Question Paper
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?
From the Official Website:
Follow the steps to download the previous years' question papers CBSE Class 12 for Biology from the official website.
- Step 1 - Visit the official website - https://www.cbse.gov.in/cbsenew/question-paper.html.
- Step 2 - On the home page, click on the 'Question Papers for Examination' tab. Click on it for the required year.
- Step 3 - Click on the link of any subject shown in the list, and it will lead to a CBSE Class 12 Biology previous year question paper class 12 PDF/ zip file.
- Step 4 - Download CBSE Class 12 Biology previous year question papers.
- Step 5 - Take a printout or save it on the device to practise with it.
- Step 6 - Students who do not have a ZIP file opener can use online tools to open the ZIP file and extract files in PDF format.
From the Careers360 Website:
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.
CBSE 12 Class Free Mock Test
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Attempt NowCBSE Class 12 Biology Previous Year Question Paper: Download PDF
Solving previous years' question papers for Class 12 Biology 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 Question Paper 2024 Biology
Students can download the question paper for CBSE Class 12 Biology question paper 2024 from the following table
CBSE Class 12 Biology Question Paper 2023
Students can download the CBSE 12th Biology question paper for 2023 using the link given below:
Previous Year Question Paper for Class 12 Biology 2022
Students can download the CBSE 12 Biology 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 previous year question paper for Class 12 Biology 2019 using the link given below:
CBSE Class 12 Question Paper 2018 Biology
Students can download the previous year question paper for Class 12 Biology 2018 using the link given below:
- CBSE Class 12 Biology Question Paper 2018
CBSE Class 12 Question Paper 2017 Biology
Students can download the previous year question paper for Class 12 Biology 2017 using the link given below:
CBSE Class 12 Question Paper 2016 Biology
Students can download the previous year question paper for Class 12 Biology 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 | 16 | |
VII | Genetics and Evolution | 20 |
VIII | Biology and Human Welfare | 12 |
IX | 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 12th Syllabus: Subjects & Chapters
Select your preferred subject to view the chapters
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.
- Students must 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.
Benefits of Solving the CBSE Class 12 Biology Question Paper
- Understand CBSE Class 12 Exam Pattern: Students must be familiar with question types, format, and marking scheme.
- Improve Time Management: Students must practice within time limits to improve speed and efficiency.
- Identify Key Topics: Students must identify the frequently asked topics for focused preparation.
- Boost Confidence: The aspirants must practice previous year question papers to reduce exam anxiety and build confidence.
- Assess Preparation: Students must help to evaluate strengths and weaknesses for targeted revision.
Also, Read:
Frequently Asked Questions (FAQs)
Q: How should student analyze their performance after solving a paper?
A:
Students must compare answers with the marking scheme, note mistakes, and revise weak areas.
Q: Do questions repeat in CBSE Class 12 Biology exams?
A:
Exact questions may not repeat in the CBSE Class 12 Biology Exam, but similar concepts and question patterns often recur.
Q: Where can I find the CBSE previous year question papers class 12 Biology?
A:
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.
Q: Is class 12 Biology difficult?
A:
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.
Q: How will CBSE class 12 Biology previous year question papers help me?
A:
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.
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