CBSE Class 12 Biology Question Paper Set 3 (57/1/3) 2025: Free PDF

The 2025 Biology Set 3 paper was moderately challenging with a mix of conceptual and application-based questions.

• Sections on case-based, assertion-reason, and long answer questions tested higher-order thinking.
• Experts rated the difficulty as Balanced-Moderate with fair weightage across Human Health, Genetics, Ecology, and Biotechnology.
• Most students found MCQs and short answers to be easy-to-moderate in difficulty.

The marking scheme and answer key for Biology Set 3 are uniform across all sets, though the questions may vary.

• CBSE releases a single marking scheme covering all sets for Class 12 Biology.
• Stepwise marks and evaluation criteria are consistent to ensure fair assessment.
• Solutions follow the official CBSE rubrics and cover every possible variation.

The CBSE Class 12 Biology Set 3 (57/1/3) 2025 paper features a section-wise structure based on the latest syllabus:

• Section A: 16 MCQ/case-based (1 mark each)
• Section B: 5 Short Answer I (2 marks each)
• Section C: 7 Short Answer II (3 marks each)
• Section D: 2 Case-based/Data-based (4 marks each)
• Section E: 3 Long Answer (5 marks each)
• Total Marks: 70, all sections compulsory, some internal choices

The official CBSE Class 12 Biology answer key for Set 3 is released on the CBSE website after the exam.

• Check the 'Examination' or 'Latest Announcements' section of the CBSE official portal.
• Trusted education platforms also provide teacher-verified answer keys and stepwise marking schemes once released.
• Answer keys help in self-evaluation and understanding official marking rubrics.

The CBSE 12 Biology Set 3 (57/1/3) 2025 features a balanced mix of question types:

• MCQs and Case-based questions to test understanding and application
• Short Answer and Assertion-Reason items for concise conceptual responses
• Long Answer questions requiring detailed, stepwise explanations and diagrams
• Internal choices provided in select sections

CBSE Biology for Class 12 is generally moderate in difficulty with emphasis on conceptual clarity and application.

• Regular practice with previous year papers and sample question papers like Set 3 helps ease preparation.
• Focused study on Genetics, Physiology, Human Health, Ecology, and Biotechnology is key to scoring well.
• The paper tests a mix of factual recall, reasoning, and diagram-based answers.

Yes, CBSE publishes official solutions and marking schemes in both English and Hindi medium for Class 12 Biology Set 3.

• Hindi medium students can access both question papers and answer keys after the official release.
• Check educational websites frequently for the latest uploads in Hindi and English.

Absolutely! The CBSE Class 12 Biology Set 3 (57/1/3) 2025 is an excellent sample for pre-board practice.

• Mimics the actual board exam pattern and marking scheme
• Helps in time management and identifying strengths or weak areas
• Ideal for exact simulation of board exam conditions

To maximise your board exam preparation with CBSE 12 Biology Set 3 (57/1/3) 2025:

• Solve the paper under real exam timing (3 hours)
• Self-check answers using the official marking scheme
• Revise diagrams and focus on concise, stepwise explanations
• Compare with other sets to spot repeated themes
• Discuss doubts with teachers or peers for clarity

Yes, CBSE ensures all sets (Set 1, Set 2, Set 3) have comparable levels of difficulty.

• Question types and marks distribution remain similar
• The order and context of questions may vary, but total challenge is equal across sets
• Marking scheme is uniformly applied for fair evaluation

Yes, diagrams with proper labeling are essential in CBSE Class 12 Biology answers wherever applicable.

• Neat, accurate diagrams can earn stepwise marks
• Failure to draw or properly label may result in loss of marks
• Always use a pencil and provide titles for all biological diagrams