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CBSE Class 12 Biology Question Paper Set 1 (57/2/1) 2025: PDF, Answer Key & Analysis

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2025 Biology Board Paper Pattern, Solutions & Difficulty Level

Get ready to level up your board prep with the CBSE Class 12 Biology Question Paper Set 1 (57/2/1) 2025. The official CBSE question paper PDF is available here for free to help you practice just like the real exam. The next CBSE Biology board exam is expected in March 2026.


This set was conducted by CBSE for Class 12 students in the 2025 session. The Biology board exam date sheet for 2026 will likely be released around December 2025, so practicing the authentic paper now gives you a head start on understanding the question format and section-wise marks.


Make the most of this trusted resource—solve the entire official CBSE paper, check how the real exam is structured, and boost your speed and confidence for the upcoming Biology board exam. Practice smart and give yourself a strong edge in 2026!

2025 Biology Board Paper Pattern, Solutions & Difficulty Level

CBSE previous year question papers are an essential Vedantu resource to master the real board exam environment. Practicing with the official Biology board paper sharpens your ability to interpret questions as per CBSE, which evaluates students on conceptual clarity, analytical approach, and ability to apply Biology principles in various contexts. Using these authentic papers helps Class 12 aspirants strengthen core topics and adapt to the board’s latest exam trends.


ParameterDetails
ClassClass 12
SubjectBiology
Set NumberSet 1
Paper Code57/2/1
Exam Year2025
Total Marks80
Time Allowed3 Hours

Why Solving CBSE Class 12 Biology Question Paper Set 1 (57/2/1) 2025 is Important

Attempting previous year question papers boosts your familiarity with the exact CBSE Biology exam pattern, improves time management, and highlights recurring concepts and frequently tested topics. By practicing with authentic Vedantu resources, you build precision, accuracy, and exam temperament needed to excel in the Class 12 board exam.


How to Access CBSE Class 12 Biology Question Paper Set 1 (57/2/1) 2025 on Vedantu

Simply follow these steps to download the official CBSE Biology previous year paper on Vedantu.

  • Visit Vedantu’s website.
  • Open the “Previous Year Question Papers” section for CBSE Biology.
  • Select Class 12, Biology, Set 1 (Paper Code: 57/2/1), and Year 2025.
  • Click “Download PDF” to get the previous year question paper.

Question Paper Structure & Format — CBSE Class 12 Biology Question Paper Set 1 (57/2/1) 2025

The CBSE Class 12 Biology paper typically includes sections with varied question types—MCQs, short and long answers, as well as internal choices—mirroring current exam trends for comprehensive concept 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 1 (57/2/1) 2025

Begin by quickly scanning the entire paper to identify easier questions and sections. Secure assured marks first, manage your time section-wise, and allocate 10–15 minutes at the end for review to minimize mistakes. Regular practice on Vedantu’s previous year Biology question papers will help you strengthen your strategy and confidence.


Common Mistakes to Avoid in CBSE Class 12 Biology Question Paper Set 1 (57/2/1) 2025

Avoid misreading questions or missing critical data, skipping key steps or diagrams, and uneven time allocation across sections. Ensure a neat presentation with proper labelling and unit correctness for each answer to maximise your score and meet CBSE’s evaluation standards.


FAQs on CBSE Class 12 Biology Question Paper Set 1 (57/2/1) 2025: PDF, Answer Key & Analysis

1. What is the CBSE Class 12 Biology Question Paper Set 1 (57-2-1) 2025?

The CBSE Class 12 Biology Question Paper Set 1 (57-2-1) 2025 refers to a specific version of the official Biology exam paper issued for the 2025 academic session in accordance with the CBSE curriculum. This set includes all required sections, question types, and marking schemes designed to assess students' understanding of the syllabus topics for Class 12 Biology.

2. How can I download the CBSE Class 12 Biology Question Paper Set 1 (57-2-1) 2025 with solutions on Vedantu?

To download the CBSE Class 12 Biology Question Paper Set 1 (57-2-1) 2025 with solutions, visit Vedantu. Sign in or create a free account and navigate to the Class 12 Biology section. Locate the specific paper set for 2025 and click on the download option to access the PDF with expertly solved answers. All resources on Vedantu are curated as per the latest CBSE guidelines and are tailored for exam success.

3. What are the benefits of practicing with the CBSE Class 12 Biology Question Paper Set 1 (57-2-1) 2025?

Practicing with the CBSE Class 12 Biology Question Paper Set 1 (57-2-1) 2025 offers several exam-oriented advantages:

  • Familiarizes students with the most recent CBSE exam patterns
  • Improves time management skills
  • Helps identify recurring question types and critical concepts
  • Boosts confidence for the final Biology board examination

4. Which important chapters are usually covered in the CBSE Class 12 Biology Question Paper Set 1 (57-2-1) 2025?

The CBSE Class 12 Biology Question Paper Set 1 (57-2-1) 2025 typically includes questions from key chapters of the Class 12 Biology syllabus, such as:

  • Reproduction
  • Genetics and Evolution
  • Biology and Human Welfare
  • Biotechnology and its Applications
  • Ecology and Environment

5. How are answer keys for CBSE Class 12 Biology Question Paper Set 1 (57-2-1) 2025 prepared on Vedantu?

Answer keys for the CBSE Class 12 Biology Question Paper Set 1 (57-2-1) 2025 are diligently created by Vedantu's expert educators. These solutions are based on the official CBSE marking scheme, ensuring step-by-step explanations, diagram accuracy, and adherence to the latest syllabus, which helps students understand the rationale behind correct answers.

6. Can solving the CBSE Class 12 Biology Question Paper Set 1 (57-2-1) 2025 help improve my marks?

Yes, regularly solving the CBSE Class 12 Biology Question Paper Set 1 (57-2-1) 2025 can significantly enhance your exam performance. By working on the actual types of questions likely to appear, you can master answering strategies, avoid common pitfalls, and gain confidence, all of which are key to scoring higher marks in your CBSE Class 12 Biology board exam.

7. What is the marking scheme used in CBSE Class 12 Biology Question Paper Set 1 (57-2-1) 2025?

CBSE Class 12 Biology Question Paper Set 1 (57-2-1) 2025 follows the standard CBSE marking scheme, which typically includes different mark weightages for varied question types such as:

  • Very short answer (1 mark each)
  • Short answer (2 and 3 marks each)
  • Long answer (5 marks each)

Each section tests application, knowledge, and analytical skills, and answers are evaluated based on correctness, presentation, and scientific accuracy.

8. How does Vedantu ensure the accuracy of solutions for CBSE Class 12 Biology Question Paper Set 1 (57-2-1) 2025?

As an academic platform dedicated to reliable support, Vedantu ensures that all solutions for the CBSE Class 12 Biology Question Paper Set 1 (57-2-1) 2025 undergo stringent quality checks. Unlike generic resources, solutions are cross-verified by experienced subject matter experts, aligned to the CBSE syllabus, and updated as per official blueprint changes. This rigorous process ensures students receive accurate, error-free explanations crucial for exam preparation.