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CBSE Class 12 Biology Answer Key 2025 - Download Solutions PDF Here (All Sets)

CBSE Class 12 Biology Answer Key 2025 - Download Solutions PDF Here (All Sets)

Edited By Manasvini Gupta | Updated on Mar 25, 2025 05:14 PM IST | #CBSE Class 12th
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CBSE Class 12th  Exam Date : 27 Mar' 2025 - 27 Mar' 2025
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The Board conducted the CBSE Class 12 Biology board exam from 10:30 a.m. to 1:30 p.m. Several online educational platforms released the unofficial CBSE 12th Biology exam answer key PDF. Students who would like to calculate their scores and get an initial assessment of their performance should make use of this CBSE 12th Bio paper answer key PDF.

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CBSE Class 12 Biology Answer Key 2025 - Download Solutions PDF Here (All Sets)
CBSE Class 12 Biology Answer Key 2025 - Download Solutions PDF Here (All Sets)
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Students will be required to score 33% separately in practical as well as theory papers to pass the CBSE Class 12 exams 2025.

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It should be noted that CBSE does not publish official CBSE 12th answer key on its official website, cbse.gov.in. Students have to rely upon unofficial sources such as, Educational YouTube channels, various coaching institutes websites to download the CBSE Class 12 Biology answer key.

In this article, students can find the direct download link to CBSE Class 12 Biology answer key 2025 PDF which is to be added based on its availability soon after the conclusion of exam. Students can also check the CBSE 12 Biology Question Paper here.

Download CBSE 12th Biology Exam Answer Key 2025 PDF

In the following table, we have mentioned details of the CBSE 12th bio exam highlights related to its answer key release date and time. The direct links to download the CBSE 12th biology answer key have also been placed and have been activated.

CBSE Class 12 Biology SET-3 Section A Answer Key 2025

Questions no.

Answer key

1-

D

2-

D

3-

B

4-

B

5-

D

6-

B

7-

D

8-

C

9-

B

10-

B

11-

D

12-

A

13-

A

14-

C

15-

A

16-

C

CBSE Board 12th Biology Answer Key 2025 PDF

Particulars

Date and Details

CBSE 12th Biology exam date

March 25, 2025 (10:30 a.m. to 1:30 p.m.)

CBSE Class 12 Biology answer key release date

After completion of the exam

CBSE 12th Biology answer key PDF for Set 1

PDF link to be updated soon

CBSE Class 12 Biology answer key link for Set 2

Click Here

CBSE Class 12 Biology answer key link for Set 3

Click Here

Download CBSE 12th Answer Keys 2025 for Other Subjects Here

How to Calculate Scores Based on CBSE 12th Biology Exam Pattern 2025?

Background wave

Having knowledge of the CBSE 12th marks allocation and marking scheme for the CBSE 12th board exam of Biology helps calculate the scores. Students must first download the CBSE Class 12 Biology answer key 2025 PDF and assign themselves marks as per the paper pattern and marking scheme mentioned in the table below:

CBSE 12th Biology Exam Paper Pattern and Marking Criteria 2025

Type of Questions

No. of Questions

Marks

1 Mark

16

16

2 Marks

5

10

3 Marks

7

21

4 Marks

2

8

5 Marks

3

15

Total

33

70

Frequently Asked Questions (FAQs)

1. How reliable is the unofficial CBSE 12th Biology answer key PDF 2025?

The Biology exam answer key for the CBSE 12th exam is prepared by various subject experts and educators. Hence, the chances of errors are minimal. However, students must wait for the CBSE 12th results 2025 to accurately determine their scores. 

2. When can I expect the CBSE 12th Biology answer key to be available?

The CBSE 12th Bio exam will conclude on March 25, 2025, at 1:30 p.m. Students can expect the answer key to be available around 3 p.m. onwards. Various educational portals may release answer keys for all sets even sooner. The direct link to the answer key will be provided in the article above as soon as it is available.

3. Is there any negative marking in the CBSE 12th Bio exam?

No, there is no negative marking. 

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Questions 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.

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!

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.







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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.

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