CBSE Class 12 Chemistry Sample Paper 2025-26 With Marking Scheme OUT, Download PDF & Know How to Use

Aug 17 2025 12:13AM, Jatin Chaudhary

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CBSE 12th Chemistry Sample Paper: The Central Board of Secondary Education (CBSE) has released the Class 12 Chemistry Sample Paper 2025-26 on its official website – cbseacademic.nic.in. This sample paper helps students understand the exam pattern, chapter-wise marks distribution, and level of difficulty as per the latest CBSE syllabus. It includes different types of questions, such as very short, short, and long answer questions, similar to those in the actual board exam. A detailed marking scheme is also provided to guide students on the right way to present answers. This makes the sample paper a very useful resource for Class 12 students who want to score well in Chemistry. In this article, we will cover everything about the CBSE Class 12 Chemistry Sample Paper – how to download it, its structure, and how it can help in exam preparation.

CBSE Class 12 Chemistry Sample Papers and Marking Scheme PDF

CBSE has released the Class 12 Chemistry Sample Paper 2025-26 along with the marking scheme on its official website. The board has kept the paper pattern the same as last year (2024-25). The sample paper includes 33 compulsory questions divided into five sections- A, B, C, D, and E. Section A has MCQs (Q1-12) and Assertion-Reason questions (Q13-16), each of 1 mark. Section B contains Very Short Answer questions (Q17-21) worth 2 marks each, while Section C includes Short Answer questions (Q22-28) carrying 3 marks each. Section D features Case Study-based questions (Q29-30) of 4 marks each, and Section E has Long Answer questions (Q31-33) worth 5 marks each. There is no overall choice in the paper, but internal choices are given in some questions across Sections B to E. Students can use the direct links below to download the CBSE Class 12 Chemistry Sample Paper and Marking Scheme.

CBSE Class 12 Chemistry Sample Paper 2025-26

CBSE Class 12 Chemistry Marking Scheme 2025-26

CBSE Class 12 Chemistry Paper Format 2025-26

The CBSE Class 12 Chemistry question paper is structured into different sections based on difficulty level and types of questions. The exam is divided into five sections and contains 33 questions. All questions are compulsory, with no overall choice. However, internal choices are available within specific sections. The details CBSE Class 12 Chemistry Board Exam Pattern are given below:

Section Number of Ques Marks/Qs Marks Type of Ques Internal Choice
Section A
(Q.1- Q.16)
16 1 16 MCQs, A&R No
Section B
(Q.17- Q.21)
5 2 10 VSA 1
Section C
(Q.22- Q.28)
7 3 21 SA 0
Section D
(Q.29- Q.30)
2 4 8 Case Study-based In sub-parts
Section E
(Q.31- Q.33)
3 5 15 LA 3
Total 33 - 70    

Benefits of Solving CBSE Class 12 Chemistry Sample Paper

Solving the CBSE Class 12 Chemistry Sample Paper is one of the most effective ways to boost your board exam preparation. It not only helps students get familiar with the latest exam pattern but also builds confidence through regular practice. By attempting the sample paper in a time-bound manner, students can improve their problem-solving speed, accuracy, and time management skills. It also helps in identifying weak areas and understanding the right approach to writing answers, as per the marking scheme provided by CBSE. It offers several other benefits, some of which are listed below:

  • Understand Latest Exam Pattern: You get familiar with the new structure, question types (MCQs, case-based, numerical), and expected difficulty.
  • Time Management Practice: Attempting the full paper under timed conditions improves speed and time allocation for each section.
  • Identify Weak Areas: By reviewing mistakes, students can spot which topics need extra revision or conceptual clarity.
  • Improve Accuracy & Confidence: Repeated practice in the numerical and physical chemistry sections improves problem-solving speed, accuracy and boosts confidence before the final exam.
  • Learn the Right Answer Format: The official marking scheme teaches how to present answers to score maximum marks.

How to Use the CBSE 12th Chemistry Sample Paper Effectively?

Simply downloading the sample paper isn't enough-using it the right way is key to scoring well in the board exam. To get the maximum benefit, students should treat the sample paper like the actual exam and follow a proper strategy while solving it. Here are some smart ways to use the CBSE Class 12 Chemistry Sample Paper effectively for better preparation and performance.

  • Print the paper and solve it in one sitting of 3 hours, like a real exam.
  • Set a timer and maintain strict exam-like discipline.
  • Avoid looking at the marking scheme while solving.
  • After finishing, evaluate using the official solution key.
  • Highlight mistakes and note down weak topics for revision.
  • Repeat this every 10-15 days to track your improvement.

CBSE Class 12 Chemistry Board Exam Preparation Strategy

Scoring well in the CBSE Class 12 Chemistry board exam requires a clear study plan and consistent practice. A well-structured preparation strategy helps students manage time, cover the entire syllabus, and focus on important topics. Below are some effective tips and strategies that can guide students to prepare smartly and confidently for the Chemistry board exam.

  • Go through the CBSE syllabus carefully and focus more on chapters with higher weightage.
  • Focus on NCERT textbooks and examples.
  • Prepare short notes, flowcharts, and tables for quick revision of formulas, reactions, and mechanisms.
  • Solve numerical problems from Physical Chemistry and practice writing reactions, equations, and mechanisms from Organic and Inorganic Chemistry.
  • Write balanced chemical equations, underline key terms, and present answers neatly.
  • Study Chemistry daily in short sessions instead of last-minute cramming.
  • Practice previous year board questions and sample papers side by side.
  • Give extra time to units like Electrochemistry, Chemical Kinetics, d & f-Block Elements, Coordination Compounds, Haloalkanes and Haloarenes, Alcohols, Phenols and Ethers, and Aldehydes.
  • Solve miscellaneous exercises from the NCERT after every chapter.
  • Make a formula sheet for last-minute revision.

CBSE Class 12 Chemistry Syllabus 2025-26

The Central Board of Secondary Education (CBSE) has released the Chemistry Syllabus for Class 12 Science streams for the 2025-26 academic year. This Chemistry Syllabus outlines the course structure, chapters, and topics that students will need to study in the subject. The CBSE Class 12 Chemistry syllabus covers a wide range of topics, including Electrochemistry, Chemical Kinetics, d & f-Block Elements, Coordination Compounds, Haloalkanes and Haloarenes, Alcohols, Phenols and Ethers, Aldehydes, Ketones and Carboxylic Acids, Amines and Biomolecules. It is divided into units with specific weightage, helping students plan their preparation effectively. The unit-wise chapters and weightage are provided below:

Unit No. Unit Name Marks
I Solutions 7
II Electrochemistry 9
III Chemical Kinetics 7
IV d and f -Block Elements 7
V Coordination Compounds 7
VI Haloalkanes and Haloarenes 6
VII Alcohols, Phenols and Ethers 6
VIII Aldehydes, Ketones and Carboxylic Acids 8
XI Amines 6
X Biomolecules 7
  Total 70
  Practical 30

Check the latest and detailed CBSE Class 12 Chemistry Syllabus 2025-26; Check Latest Unit-wise Weightage, Download PDF.

CBSE Class 12 Chemistry Exam Pattern 2025

CBSE has released the exam pattern and marking scheme for the 2025-26 academic year. The board followed the same exam pattern and marking scheme as in 2024-25. The CBSE Class 12 Chemistry board exam consisted of a theory paper of 70 marks and a Practical of 30 marks. The question paper was divided into five different sections:

Section Question Type Number of Questions Marks
A Multiple Choice Questions & Assertion and Reason Questions (1 mark) 16 16
B Very Short Answer (2 mark) 5 10
C Short Answer (3 marks) 7 21
D Case Study-Based Questions (4 marks) 2 8
E Long Answer (5 marks) 3 15
Total 33 70

Check the latest and detailed CBSE Class 12th Chemistry Exam Pattern 2025-26 with Marking Scheme.