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ISC Class 12 Chemistry Exam Pattern 2025-26 comprises a 70-mark theory paper and a 30-mark practical, making a total of 100 marks.
Each component will be hald for 3 hours. The Chemistry theory paper is divided into Physical Chemistry, Inorganic chemistry, and Organic chemistry. Other than that, the weightage of Inorganic chemistry is 14, of Organic chemistry, is 31, and of Physical chemistry it is 25 marks. Physical Chemistry will contain three chapters with the highest numeric application. Organic Chemistry will carry the greatest weightage among all units and is scoring. Inorganic Chemistry focuses on modern element chemistry and coordination compounds.
Students should cover all the topics and chapters in the
ISC class 12th Chemistry syllabus 2026
to score good marks in the final exam.
ISC Class 12 Chemistry Sample Paper 2025-26
is another resource that students may utilize to effectively review and gain more knowledge about the exam's structure and commonly asked questions. Practice the chemical equations and diagrams as well if you want to improve your theoretical scores. Students can go through the page below to learn more about ISC Class 12 Chemistry Exam Pattern 2025-26.
Also Check
ISC 12th Time Table 2026
ISC Class 12 Chemistry Exam Pattern 2025-26
To check ISC 12th Chemistry 2025 Blueprint 2025, students can review the table below.| Exam Category | Details | Marks |
| Paper I | Theory Paper | 70 Marks |
| Paper II | Practical | 15 Marks |
| Project Work | 15 Marks | |
| Practical File | ||
| Total | 100 Marks |
ISC Class 12 Chemistry Blueprint 2025-26
The ISC Class 12 Chemistry exam is divided into two papers.
- Theory Paper: It consists of 70 marks and 3 hours of time duration.
- Chemistry Practicals: It consists of practical (15 marks), project work (10 marks), and practical file (5 marks).
ISC class 12 Physical Chemistry Blueprint 2025-26
There are 3 chapters in Physical chemistry of 25 marks. Students can check details below.| Chapters | Marks |
|---|---|
| Solutions | 25 |
| Electrochemistry | |
| Chemical Kinetics |
ISC class 12 Inorganic Chemistry Blueprint 2025-26
The ISC Inorganic Chemistry class 12 consists of two chapters. Refer to the table below for the ISC class 12 Inorganic Chemistry exam pattern.
| Chapters | Topics | Marks |
| d and f Block Elements | d-Block: 3d, 4d and 5d series | 14 |
| f-Block: 4f and 5f series | ||
| Potassium permanganate | ||
| Potassium dichromate | ||
| Coordination Compounds | Definition of coordination compounds | |
| IUPAC nomenclature of mononuclear coordination compounds | ||
| Isomerism | ||
| Valence bond theory | ||
| Crystal field theory | ||
| Stability of coordination compounds | ||
| Importance and uses | ||
| Chemical properties |
ISC class 12 Organic Chemistry Blueprint 2025-26
The ISC class 12 Organic Chemistry consists of five chapters. The chapters and topics covered in the Organic Chemistry sections as per ISC 12th Chemistry exam pattern 2025 are given in the table below:| Chapters | Topics | Marks |
| Alcohols, Phenols, and Ethers | Physical and Chemical properties, Nomenclature, Preparation and Reaction of | 31 |
| Alcohols | ||
| Phenols | ||
| Aliphatic Ethers | ||
| Aryl ethers | ||
| Aldehydes, Ketones, and Carboxylic Acids | Physical and Chemical properties, Nomenclature, Preparation and Reaction of: | |
| Aldehydes and Ketones | ||
| Aromatic aldehyde (Benzaldehyde) | ||
| Carboxylic Acids | ||
| Organic compounds containing Nitrogen | Physical and Chemical properties, Nomenclature, Preparation and Reaction of: | |
| Aliphatic Amines | ||
| Aniline | ||
| Cyanides and Isocyanides | ||
| Diazonium salts | ||
| Biomolecules | Carbohydrates – Definition, Classification | |
| Monosaccharides, oligosaccharides, polysaccharides | ||
| Proteins | ||
| Vitamins | ||
| Nucleic Acids - DNA and RNA | ||
| Haloalkanes and Haloarenes | Physical and Chemical properties, Nomenclature, Preparation and Reaction of: | |
| Haloalkanes | ||
| Haloarenes | ||
| Structure of freons |
ISC Class 12 Chemistry Blueprint 2025-26 for Practical
There will be practical work (Paper II) for 15 Marks. Candidates will have to complete the suggested experiments.The ISC Class 12 Project Work and Practical file for Chemistry will carry 15 marks. For the project work (10 marks), a Visiting Examiner appointed locally and approved by the Council will assess. The candidate is to creatively execute one project/assignment on an aspect of Chemistry. Teachers may assign or students may select a topic of their choice.
Suggested Evaluation criteria for Project Work:
- Introduction / purpose
- Contents
- Analysis/ material aid (graph, data, structure, pie charts, histograms, diagrams, etc.)
- Presentation
- Bibliography
ISC Class 12 Chemistry Question Paper Blueprint 2025-26
The ISC Class 12 Chemistry Question Paper Blueprint 2025-26 is a structured five-section format, reflecting the official CISCE guidelines. The ISC Class 12 Chemistry question paper is of 3 hours duration and carries a total of 70 marks. Check out the ISC Class 12 Chemistry Question Paper Blueprint 2025-26 from the table below:| Section | Question Type | Number of Questions | Marks per Question | Total Marks |
|---|---|---|---|---|
| Section A | Objective/MCQs | 18 | 1 | 18 |
| Section B | Short Answer (2 marks) | Approx 9 | 2 | 18 |
| Section C | Short to Long Answer (3 marks) | Approx 7 | 3 | 21 |
| Section D | Long Answer (4 marks) | Approx 4 | 4 | 16 |
| Section E | Essay/Descriptive (5 marks) | 2 | 5 | 10 |
Students preparing for the ISC Class 12 exam students should also go through the ISC Class 12 Previous Year Question Paper , specimen papers, etc to score better in the exams.
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