CBSE Class 12 Biology Set 1 (57/5/1) Question Paper 2025: PDF, Answer Key & Solutions

The CBSE Class 12 Biology Set 1 (57/5/1) 2025 is the official board exam paper for Biology, reflecting the latest CBSE syllabus and exam pattern for 2024�25.

• Covers all core NCERT Biology chapters for Class 12.
• Provides a real-exam experience with objective, short, and long answer questions.
• Useful for students preparing for boards and NEET.

The difficulty level of the CBSE Class 12 Biology board paper Set 1 (57/5/1) 2025 was rated as moderate by most teachers and students.

• MCQs and diagram-based questions were student-friendly.
• Some case-based questions required deeper application of concepts.
• Majority of questions followed standard NCERT syllabus trends.

Set 1 in CBSE Biology refers to a distinct version of the official board exam, identified by paper code 57/5/1.

• Carries the same syllabus coverage and marking scheme as other sets.
• Questions are sequenced differently to ensure fairness and curb malpractices.
• Practicing Set 1 offers accurate insight into CBSE exam structure for 2025.

The CBSE Class 12 Biology Set 1 (57/5/1) 2025 question paper comprised 33 questions divided into 5 sections:

• Section A: MCQs & Assertion Reason (16)
• Section B: Short Answer I (5)
• Section C: Short Answer II (7)
• Section D: Case/Source-based (2)
• Section E: Long Answer/Diagram-based (3)

You can download the CBSE Class 12 Biology Set 1 57/5/1 2025 question paper and its solutions in PDF format from this page or after release on the official CBSE website.

• PDF includes original Board paper with answer key.
• Ideal for pre-board and last-minute practice.

The 2025 CBSE Biology Set 1 paper was considered moderate by experts.

• Contains straightforward MCQs and case-based reasoning for better assessment.
• Diagrams and assertion-reason questions tested core NCERT concepts.

The difference between Set 1 (57/5/1) and Set 2 (57/1/2) in CBSE Biology lies in question sequencing only.

• Both sets follow the same syllabus, structure, and marking scheme.
• Ensures fairness and prevents malpractices during exams.

Yes, the CBSE Class 12 Biology 2025 solutions PDF includes step-wise marking as per the official marking scheme.

• Each answer is broken down for easy self-evaluation.
• Teachers and students can use it to understand how marks are awarded in the Board exam.

NEET aspirants can use the CBSE Class 12 Biology Question Paper Set 1 2025 to strengthen core NCERT concepts and practice high-weightage topics.

• Chapter coverage and question types are closely aligned with NEET’s Biology syllabus.
• Practicing Board papers helps in time management and topic revision.

Yes, Set 1, Set 2, and Set 3 in CBSE Class 12 Biology maintain a comparable difficulty and syllabus coverage.

• All sets assess similar skills and concepts using different question orders.
• Ideal for comprehensive practice before the Board exam.

Yes, the CBSE Class 12 Biology 2025 board paper is also released in Hindi medium for eligible schools and students.

• Questions and terminology mirror English papers with same code.
• Hindi medium students can download their version after the exam.

To maximise your results using the CBSE Set 1 2025 Biology paper:

• Attempt under real exam conditions (3 hours, no breaks).
• Use the official answer key for checking and learn marking schemes.
• Review solutions for diagram accuracy and answer structure.
• Repeat with other sets (Set 2/Set 3) for trend analysis.

This page provides verified CBSE Class 12 Biology resources with over 10 years of curated exam expertise.

• All content is cross-checked with CBSE official notifications and academic experts.
• Answer keys and marking schemes are validated by experienced subject teachers.