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The CBSE Class 12 Biology exam 2025 will be conducted on March 25, 2025, from 10:30 am to 1:30 pm. After the final exams, one of the most anticipated resources is the CBSE class 12 Biology answer key 2025. It will allow the students to review their performance.
The Biology paper will be held for 100 marks, of which 70 marks will be allotted for theory and 30 for practical assessment. Moreover, following the CBSE class 12 board exams 2025, several academic institutes/ experts will publish the CBSE 12th Biology answer keys. The official answer key will be available later on its official website.
Students can review the CBSE Class 12 answer key 2025 for the Biology paper and confirm the authenticity of the answers before evaluating their performance. The answer key will help the candidates to calculate their scores.
The CBSE Biology exam for class 12 was held for 70 marks, and the question papers were divided into 5 sections. After successfully conducting the exams, the board will release the CBSE 12th Biology answer key 2025. If students find discrepancies in their answer key, they can immediately contact their school authorities.
Once available, we will update below the link to download the CBSE Answer Key 2025 for the class 12 Biology exam along with the question paper.
CBSE Class 12 Biology Answer Key 2025 (To be updated) | CBSE Class 12 Biology Question Paper 2025 (To be updated) |
Students who attended the Biology paper 2023 claimed that the paper was of moderate to tough level. The detailed CBSE class 12th Biology answer key for 2023 is below for the student's reference.
Refer to the table below to get the detailed CBSE class 12th Biology answer key PDFs for various sets.
Particulars | Download Link |
CBSE Class 12th Biology Answer Key 2023 | Click Here |
The CBSE class 12 Biology question papers were conducted for 3 hours in pen and paper mode. The question paper had 33 questions overall, Section A had 16 questions of 1 mark each, Section B had 5 questions of 2 mark each, Section C had 7 questions of 3 marks each, and Section D had 2 case-based questions of 4 marks each and lastly from section E had 3 questions of 5 marks each.
The review of the CBSE class 12 Biology question paper is below for the student's reference.
Particulars | Question Paper Analysis |
Difficulty Level: As Stated By Students | Moderate |
Types Of Questions | According to experts, the questions asked were balanced and simple. |
Questions were directly asked from the NCERT textbook. | |
Section C of the question paper was considered to be difficult by students | |
MCQs were the easiest part of the question paper | |
Exam Duration & Length of the Paper | Students had sufficient time to complete the paper. |
Read more: Passing Marks in CBSE Class 12th
Students can use the previous year's pattern and marking scheme to prepare for the upcoming board exams. Moreover, after completing the examination, the board will release the CBSE class 12 biology answer key. Below is the detailed question paper pattern for the student's reference.
Sections | Number of Questions | Marks | Type of Questions | Difficulty Level |
Section A | 16 | 1 x 16 | Multiple Choice Questions | Moderate |
Section B | 5 | 2 x 5 | Very Short Answer Questions | Moderate |
Section C | 7 | 3 x 7 | Short Answer Questions | Moderate |
Section D | 2 | 2 x 4 | Long Answer Questions | Moderate |
Section E | 3 | 5 x 3 | Case-Based Questions | Moderate |
Total | 33 | 70 | - | - |
Read more: Best Reference Books CBSE Class 12th
The CBSE class 12 Biology question paper analysis will guide the candidates to understand the difficulty level of the questions and paper pattern. The previous year Biology question paper had five sections and 33 questions in total. Moreover, the questions asked were direct from the NCERT solutions for Biology.
Get the detailed CBSE class 12 Biology question paper analysis for various years.
Question Paper | PDF Link |
CBSE Class 12 Biology Question Paper 2023 | Download |
CBSE Class 12 Biology Question Paper 2022 | Download |
CBSE Class 12 Biology Question Paper 2020 | Download |
CBSE Class 12 Biology Question Paper 2019 | Download |
Refer to the image below to get a detailed overview of the question types in the CBSE class 12 exam for Biology.
The CBSE class 12 Biology exams, as per the students and experts, were easy regarding difficulty level. All the questions were asked from the NCERT syllabus. Moreover, students could quickly obtain 90% in the class 12 Biology exam in 2022. Check out the section-wise paper analysis for the CBSE class 12 Biology 2022.
Section | No. of Questions | Marks Per Question | Type of Questions |
A | 6 | 2 | Concept-based questions |
B | 6 | 3 | Reasoning, HOTS, and application-based questions |
C | 1 | 5 | Case study |
As per the teachers and the subject experts, the questions asked in the CBSE class 12 Biology paper for 2021 were simple. The questions asked in the Biology paper 2021 were similar to those in the CBSE 12th sample paper.
The expert claimed that the Biology question paper was easy and straightforward. Below is the section-wise number of questions and the weightage of questions in the class 12 Biology paper 2022.
Section | Type of Question | Number of Questions | Weightage of Each Question |
---|---|---|---|
A | Multiple Choice Questions (MCQs) | 24 questions (Any 20 need to be attempted) | 0.7 |
B | Multiple Choice Questions (MCQs) | 24 questions (Any 20 need to be attempted) | 0.7 |
C | Multiple Choice Questions (MCQs) | 12 questions (Any 10 need to be attempted) | 0.7 |
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