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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. Where can I download CBSE Class 10 Maths Set 1 2025 paper?

You can download the CBSE Class 10 Maths Question Paper Set 1 (2025) as a PDF from official CBSE resources or trusted exam-prep sites.

  • Look for the "Question Paper PDF (Set 1, 2025)" link on CBSE or top educational platforms.
  • Ensure you are downloading the Standard or Basic version as per your stream.
  • Solution PDFs are also available for detailed stepwise answers.
Primary keywords: CBSE class 10 maths 2025 set 1 question paper, pdf download.

2. Was the 2025 Set 1 paper easy or tough?

The 2025 CBSE Maths Set 1 (Standard) paper was overall moderate in difficulty.

  • Sections A and B had mostly direct, easy questions.
  • Sections C and D included moderate to tricky long-answer and application-based questions.
  • The Basic maths paper was noticeably easier, with fewer HOTS (Higher Order Thinking Skills) questions.
Most students found time management comfortable, but concept clarity was essential for scoring high.

3. What is the difference between Basic and Standard Maths question papers?

The main difference is the difficulty level and application type of questions.

  • Standard Maths: Suited for students planning to continue Maths in higher studies; features higher-order, application, and competency-based questions.
  • Basic Maths: For students not opting for Maths after Class 10; contains more fundamental and direct questions.
Both follow the same syllabus but differ in complexity and challenge.

4. How many total questions and marks were there in Set 1?

The CBSE Class 10 Maths Set 1 (2025) paper had 39 questions totalling 80 marks.

  • Section A: 20 Objective Questions (1 mark each)
  • Section B: 5 Short Answer I (2 marks each)
  • Section C: 6 Short Answer II (3 marks each)
  • Section D: 4 Long Answer (5 marks each)
  • Section E: 4 Case-based (2 marks each)

5. Where can I get the CBSE maths marking scheme and answer key for 2025?

You can access the CBSE Class 10 Maths 2025 Marking Scheme and answer key on official and leading educational sites.

  • Marking schemes provide stepwise marking for each question.
  • They include all accepted answers and explain how partial marks are awarded.
  • The answer key helps in accurate self-assessment and board exam preparation.

6. Is CBSE maths paper tough?

The CBSE Class 10 Maths paper varies in difficulty each year.

  • Most years, it is moderate and follows the official blueprint.
  • Standard Maths is tougher than Basic Maths.
  • Practicing previous year papers helps in understanding the question types and level.

7. What is included in the CBSE Class 10 Maths syllabus for board exams?

The CBSE Class 10 Maths syllabus (2025) includes Number Systems, Algebra, Geometry, Trigonometry, Mensuration, Statistics, and Probability.

  • All topics are assessed through objective, short, and long answer questions.
  • Both Basic and Standard papers follow the same syllabus; question complexity may differ.
  • Syllabus is as per the latest CBSE curriculum and follows NCERT guidelines.

8. Can I get step marking details for each question?

Yes, the official marking scheme for CBSE Class 10 Maths provides detailed step marking for each question.

  • Marks are awarded for every correct step, not just final answers.
  • Unit correctness and logical approach are also considered for partial marks.
  • Refer to the official marking scheme PDF or solutions for clarity.

9. Are all sets of CBSE Maths paper equally difficult?

CBSE ensures that all sets (Set 1, 2, 3) are standardized in difficulty.

  • Minor differences may occur, but moderation processes maintain fairness.
  • Each set covers the same syllabus and follows an identical pattern.

10. How should I use previous year papers for Class 10 Maths board exam preparation?

To maximize your CBSE Maths score, use previous year papers as follows:

  • Practice under real exam conditions and strictly timed sessions.
  • Check your answers with the official answer key or marking scheme.
  • Identify and revise weak chapters based on mistakes.
  • Solve all sets (Set 1, 2, 3) for exposure to various question types and difficulty levels.