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CBSE Class 12 Biology Previous Year Question with Detailed Solutions (2016-2025)

CBSE Class 12 Biology Previous Year Question with Detailed Solutions (2016-2025)

Edited By Vishal kumar | Updated on Aug 14, 2025 06:26 PM IST | #CBSE Class 12th

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.

This Story also Contains
  1. How to Download CBSE 12th Biology PYQs from the Official Website?
  2. CBSE Class 12 Biology Previous Year Question Paper: Download PDF
  3. Chapter-wise Weightage for CBSE Class 12 Biology 2026
  4. Best Reference Books for CBSE Class 12 Biology 2026
  5. CBSE Class 12 Biology Question Paper Design 2026
  6. How to Prepare for the CBSE Class 12 Biology Exam 2026?
  7. Benefits of Solving the CBSE Class 12 Biology Question Paper
CBSE Class 12 Biology Previous Year Question with Detailed Solutions (2016-2025)
CBSE Biology Question Papers

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.
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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.
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CBSE 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 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

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.

  1. The first thing is to make a proper study timetable and follow it strictly.
  2. Students should also look into CBSE Class 12 Biology Preparation Tips 2026 for effective tips that could be used in their study plan.
  3. Use the best class 12 biology reference books to get clarity on topics and help in practising them.
  4. Students must start solving CBSE class 12 sample papers to get familiar with the typology of questions and the current marking scheme.
  5. Students should also solve previous years' question papers to understand frequently asked topics and the exam pattern.
  6. Dedicate time to clear all doubts and concepts, and revise theorems regularly.

Benefits of Solving the CBSE Class 12 Biology Question Paper

  1. Understand CBSE Class 12 Exam Pattern: Students must be familiar with question types, format, and marking scheme.
  2. Improve Time Management: Students must practice within time limits to improve speed and efficiency.
  3. Identify Key Topics: Students must identify the frequently asked topics for focused preparation.
  4. Boost Confidence: The aspirants must practice previous year question papers to reduce exam anxiety and build confidence.
  5. Assess Preparation: Students must help to evaluate strengths and weaknesses for targeted revision.

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.

4. Do questions repeat in CBSE Class 12 Biology exams?

Exact questions may not repeat in the CBSE Class 12 Biology Exam, but similar concepts and question patterns often recur.

5. How should student analyze their performance after solving a paper?

Students must compare answers with the marking scheme, note mistakes, and revise weak areas.

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Questions related to CBSE Class 12th

Have a question related to CBSE Class 12th ?
Can I change my board from CBSE to CHSE Odisha in 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.

Read Complete Answer
Manasvini Gupta 30 January,2025
quartely question paper for mathematics cbse

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!

Read Complete Answer
Jefferson 25 September,2024
i have taken admission in clg after my campartment exam in chemistry along with the neet 2025 preperation but unfortunately i again got campartment after doing all this preparation i got 15 marks only now I can't able to think what should I do next.

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:

  1. Re-evaluate Your Study Strategies:

    • Identify Weak Areas: Pinpoint the specific topics or concepts that caused difficulties.
    • Seek Clarification: Reach out to teachers, tutors, or online resources for additional explanations.
    • Practice Regularly: Consistent practice is key to mastering chemistry.

  2. 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.

  3. 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.

  4. 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.

  5. 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.







Read Complete Answer
Kanishka kaushikii 17 September,2024
i scored 84 percent in cbse 2 years ago.Am i eligible for medhavi scholarship if give 12th again after 2 drop years and will got 75+ in mpboard

Hi,

Qualifications:
Age: As of the last registration date, you must be between the ages of 16 and 40.
Qualification: You must have graduated from an accredited board or at least passed the tenth grade. Higher qualifications are also accepted, such as a diploma, postgraduate degree, graduation, or 11th or 12th grade.
How to Apply:
Get the Medhavi app by visiting the Google Play Store.
Register: In the app, create an account.
Examine Notification: Examine the comprehensive notification on the scholarship examination.
Sign up to Take the Test: Finish the app's registration process.
Examine: The Medhavi app allows you to take the exam from the comfort of your home.
Get Results: In just two days, the results are made public.
Verification of Documents: Provide the required paperwork and bank account information for validation.
Get Scholarship: Following a successful verification process, the scholarship will be given. You need to have at least passed the 10th grade/matriculation scholarship amount will be transferred directly to your bank account.

Scholarship Details:

Type A: For candidates scoring 60% or above in the exam.

Type B: For candidates scoring between 50% and 60%.

Type C: For candidates scoring between 40% and 50%.

Cash Scholarship:

Scholarships can range from Rs. 2,000 to Rs. 18,000 per month, depending on the marks obtained and the type of scholarship exam (SAKSHAM, SWABHIMAN, SAMADHAN, etc.).

Since you already have a 12th grade qualification with 84%, you meet the qualification criteria and are eligible to apply for the Medhavi Scholarship exam. Make sure to prepare well for the exam to maximize your chances of receiving a higher scholarship.

Hope you find this useful!

Read Complete Answer
Yuvan 30 August,2024
i upload 12th board result screenshot in ncweb form from the cbse site so it is valid

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.

Read Complete Answer
Ashvadha 12 July,2024
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