Class 12 Chemistry is a very important subject for science students in which along with theory, understanding of Numerical and Chemical Reactions is also necessary. To organize the exam preparation, Punjab Textbook Board has released 12th Class Chemistry Pairing Scheme 2025-26. This scheme is the same for all Punjab boards and the paper is arranged according to the same scheme. In this article, you are being provided with chapter-wise marks distribution, complete guidelines for short and long questions, and the complete scheme of the paper.
12th Class Chemistry Paper Pattern 2025-26
| Section | Details |
|---|---|
| Total Marks | 85 |
| Objective (MCQs) | 17 |
| Subjective | 68 |
| Paper Duration | 3 Hours |
MCQs Chapter-wise Distribution 2025-26
| Chapter | MCQs |
|---|---|
| Chapter 1 to 4 | 8 |
| Chapter 5 to 8 | 5 |
| Chapter 9 to 16 | 4 |
| Total | 17 |
Short Questions Distribution 2025-26
| Section | Total Questions | Marks for Attempt | Important Chapters |
|---|---|---|---|
| Section A | 12 | 16 | 1–4 |
| Section B | 12 | 16 | 5–8 |
| Section C | 12 | 16 | 9–16 |
Long Questions Scheme 2025-26
| Question Number | Chapters | How Many | Of How Many to Do | Marks |
|---|---|---|---|---|
| Q1 | Unit 1–4 | 2 | 1 out of 2 | 8 |
| Q2 | Unit 5–8 | 2 | 1 out of 2 | 8 |
| Q3 | Unit 9–16 | 2 | 1 out of 2 | 8 |
Note: Each question will be of 8 marks which will include Part A + Part B.
Chapter wise important topics
| Chapter | Important Topics | Importance |
|---|---|---|
| Solutions | Ideal & Non-Ideal Solutions, Raoult’s Law | Must |
| Electrochemistry | Redox Reactions, Nernst Equation | Long Question |
| Chemical Kinetics | Order & Molecularity, Rate Equation | Short + Long |
| Thermochemistry | Enthalpy Changes | MCQs |
| S & P Block Elements | Sulfur & Nitrogen Compounds | MCQs |
| Transition Elements | Complex Compounds | Theoretical |
| Aldehydes & Ketones | Nucleophilic Addition Reactions | Long Expected |
| Carboxylic Acids | Acidity Factors | Short |
| Macromolecules | Polymers | MCQs |
| Biochemistry | Proteins, Carbohydrates | Short Expected |
| Environmental Chemistry | Water Treatment | Theory Question |
Important preparation tips
• Have a complete grasp of important formulas and reactions
• Always write with mechanism and structures diagrams
• Previous year board papers are a must
• For MCQs, remember important points from each chapter carefully
12th Class Chemistry Pairing Scheme 2025-26 PDF Download
FAQs
- Is this scheme the same in all Punjab boards?
Yes, the same scheme is followed in all boards. - Are numericals mandatory?
Yes, numericals are expected from Electrochemistry and Chemical Kinetics. - Is Organic Chemistry more important?
Yes, almost every year, a mandatory Long Question comes from here. - Will the paper be complete according to this scheme?
If you prepare according to this scheme, 90% of the paper will come from here.
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