Courses
Courses for Kids
Free study material
Offline Centres
More
Store Icon
Store

CBSE Class 12 Biology Question Paper Set 3 (57/2/3) 2025 – PDF, Answer Key & Solutions

ffImage
banner
widget title icon
Latest Updates

How to Use CBSE 12th Biology Set 3 Paper 2025 for Exam Preparation

Get the CBSE Class 12 Biology Question Paper Set 3 (Code 57/2/3) 2025 right here—your free, official CBSE question paper PDF for Biology. This is the authentic board exam paper as administered in schools across India, perfect for practicing the latest 2025 exam pattern and marking scheme.


CBSE conducts the Class 12 Biology board exam every March, with the 2025 paper based on updated syllabus and section-wise format. Students waiting for the 2026 boards can expect the official date sheet to release by December 2025, so early practice with real papers gives you an extra edge.


Use this official CBSE Biology paper to understand question trends, improve your answer speed, and build full confidence for the upcoming board exam. Practicing with real Biology board papers is the best way to strengthen concepts, manage time, and achieve a strong result.

How to Use CBSE 12th Biology Set 3 Paper 2025 for Exam Preparation

Vedantu provides official CBSE previous year question papers so students experience real exam formats and question trends as designed by the Board itself. These papers let you practice conceptual clarity, boost analytical thinking, and strengthen your application-based skills for CBSE’s marking approach—essential steps for building confidence before your Biology board exam.


ParameterDetails
ClassClass 12
SubjectBiology
Set NumberSet 3
Paper Code57/2/3
Exam Year2025
Total Marks80
Time Allowed3 Hours

Why Solving CBSE Class 12 Biology Question Paper Set 3 57/2/3 2025 is Important

Practicing with Vedantu’s previous year question papers trains you on the latest exam pattern, sharpens time management, and builds familiarity with recurring concepts and question formats. Regular use improves accuracy and helps develop an effective exam temperament—key for high performance in the CBSE Biology board exam.


How to Access CBSE Class 12 Biology Question Paper Set 3 57/2/3 2025 on Vedantu

To get authentic CBSE Biology previous year question papers, follow these simple steps:

  • Visit Vedantu’s website.
  • Open the “Previous Year Question Papers” section for CBSE Class 12.
  • Select Biology, Set 3, and 2025.
  • Click “Download PDF” to get the previous year question paper.

Question Paper Structure & Format — CBSE Class 12 Biology Question Paper Set 3 57/2/3 2025

This CBSE paper contains sections with internal choices and a mix of MCQs, short-answer, and long-answer questions, following the latest Board guidelines for diversified skill assessment.


SectionNo. of QuestionsMarks per QuestionTotal Marks
Section A616
Section B6212
Section C10330
Section D8432

Expert Tips for Attempting CBSE Class 12 Biology Question Paper Set 3 57/2/3 2025

Read through the Biology paper first, tackle assured-scoring questions before moving to challenging parts, and always monitor your time per section. Use Vedantu’s previous year question papers for realistic practice sessions and identify areas for quick revision in the final days.


Common Mistakes to Avoid in CBSE Class 12 Biology Question Paper Set 3 57/2/3 2025

Steer clear of overlooking keywords or diagrams, ignoring stepwise logic in long answers, and misallocating your writing time. Always present answers neatly, label diagrams carefully, and double-check every section for unanswered parts before submission.


FAQs on CBSE Class 12 Biology Question Paper Set 3 (57/2/3) 2025 – PDF, Answer Key & Solutions

1. Where can I download the CBSE Class 12 Biology Set 3 57/2/3 2025 paper?

The CBSE Class 12 Biology Set 3 57/2/3 2025 question paper is available for PDF download from official CBSE sources and trusted educational websites.

To access the paper:

  • Visit reputed portals offering CBSE Class 12 Biology Board Question Papers
  • Look for Set 3 (Code 57/2/3) 2025 PDF link with or without solutions
  • Practice with the downloaded paper under exam conditions for the best results

2. Was the 2025 Biology Set 3 paper considered easy, moderate, or tough?

The 2025 CBSE Biology Set 3 (57/2/3) paper was rated as Moderate by most students and teachers.

Difficulty insights:

  • MCQs and short answers: Mostly easy to moderate
  • Genetics and Ecology sections: Contained a few tough, application-based questions
  • Best scoring topics: Reproduction in Organisms, Ecosystem
This breakdown helps students focus their board prep on high-yield chapters and challenging concepts.

3. What is the latest syllabus and pattern followed for Biology Set 3 2025?

The CBSE Class 12 Biology Set 3 2025 paper follows the updated CBSE syllabus and new paper pattern.

Main features:

  • Sections A-E: MCQs, short answers, long answers, and case-based questions
  • Marks distribution: 70 marks for theory, 30 marks practical/internal
  • 2025 pattern: Emphasis on conceptual, assertion-reason, and application-based questions
Always check the official CBSE syllabus before preparing for the exam.

4. Is the marking scheme available for each section and question?

Yes, the CBSE Biology Set 3 2025 marking scheme provides stepwise marks for each question and section.

Details include:

  • MCQs: +1 mark per correct answer
  • Short and long answers: Marks split for key points, diagrams, correct format
  • Case-based/Assertion-Reason questions: Marks awarded for proper logic and explanation
  • Official marking schemes are released by CBSE and included in reliable solution PDFs

5. Where to download official answer key for Biology 57/2/3?

You can download the official answer key and marking scheme for CBSE Biology Set 3 57/2/3 from the CBSE website and educational resources specializing in CBSE Board exams.

Follow these steps:

  • Visit the trusted platform's Biology question paper section
  • Find the 'Set 3 (57/2/3) Answer Key' or 'Solutions PDF' link
  • Use the answer key for stepwise self-assessment and revision

6. Is Biology Set 3 paper tough?

The CBSE Biology Set 3 paper is generally considered moderate, with certain questions in Genetics and Biotechnology considered tougher or more application-based.

Breakdown:

  • MCQs & basic theory: Usually direct and easier
  • Case-based and assertion-reason questions: Can be challenging
  • Application & diagram-based: Require conceptual clarity
Regular practice with past papers is key to mastering all difficulty levels.

7. Does CBSE release official solution keys or only unofficial ones?

CBSE officially releases marking schemes but does not always provide full solution keys for every paper.

For Set 3 57/2/3, you can find:

  • Marking scheme: Released on the CBSE website - shows mark allocation
  • Expert & community solutions: Educational websites like Vedantu provide detailed stepwise answers
Use official marking schemes combined with trusted expert solutions for best results.

8. Are questions in Set 3 57/2/3 repeated in other sets or years?

Exact questions from CBSE Biology Set 3 (57/2/3) are unique to each board year, but similar topics or formats often reappear.

You may notice:

  • Recurrent topics like Human Physiology or Genetics
  • Similar question patterns between Set 1, Set 2, and Set 3
  • Important conceptual MCQs repeating across years
Practicing all sets improves familiarity with common board question trends.

9. Is the 2025 Biology Set 3 PDF available in Hindi medium?

CBSE usually releases Class 12 Biology question papers in both English and Hindi medium.

For Hindi medium students:

  • Check download options for "Hindi" or "Bilingual" versions
  • Review the official CBSE portal or major educational platforms
  • Ensure you are selecting Set 3 (57/2/3) 2025 Hindi if needed

10. How to use CBSE Class 12 Biology Set 3 57/2/3 2025 for exam preparation?

Practicing with the CBSE Biology Set 3 2025 paper helps build confidence and improve scores.

Best strategies:

  • Solve the paper within 3 hours to mimic real exam conditions
  • Attempt all questions before checking solutions
  • Self-assess using the marking scheme and answer key
  • Analyze which chapters or questions took most time
  • After Set 3, try Set 1 and Set 2 papers for full practice coverage
This improves time management, identifies weak areas, and aligns your answers with official CBSE marking policies.