This page offers a comprehensive guide to the Class XII Chemistry syllabus and marking scheme, designed to help students excel in their CBSE board exams. Covering key topics in Physical, Organic, and Inorganic Chemistry, the syllabus is structured to provide a solid foundation in chemical concepts and practical applications. The page also explains the exam marking scheme, helping students understand the weightage of different units and how to plan their studies effectively. With this information, students can approach their Chemistry board exam with confidence and clarity.
Class XII Chemistry Syllabus and Marking Scheme
|
Class |
Subject Code |
Subject Name |
Theory Marks |
Time (h) |
Internal Assessments Marks |
Total Marks |
Group |
|
12 |
43 |
Chemistry |
70 |
3 |
30 |
100 |
Group A |
The Class 12 Chemistry syllabus is designed to cover essential concepts and skills needed for a strong academic foundation in chemistry. It aims to enhance your understanding of chemical principles and develop your analytical and problem-solving abilities. The syllabus is divided into various chapters, each focusing on specific topics and learning outcomes that will help you excel in your exams. By covering key areas in Physical, Organic, and Inorganic Chemistry, this syllabus prepares you for both board exams and future studies in scientific fields.
|
Class XII Chemistry Syllabus & Marking Scheme (2026-27) |
||||
|
Unit |
Unit name |
Chapters & Topics |
Marks |
Weightage |
|
Unit I |
Solutions |
Types of solutions, concentration expressions, solubility of gases, Raoult's law, colligative properties (relative lowering of vapour pressure, elevation of boiling point, depression of freezing point, osmotic pressure), molecular mass determination, abnormal molecular mass, Van't Hoff factor. |
7 |
10.00% |
|
Unit II |
Electrochemistry |
Redox reactions, EMF of a cell, Nernst equation, Gibbs energy and EMF, conductance, Kohlrausch’s law, electrolysis, dry cells, electrolytic and galvanic cells, lead accumulator, fuel cells, corrosion. |
9 |
12.86% |
|
Unit III |
Chemical Kinetics |
Rate of reaction, factors affecting rate (concentration, temperature, catalyst), order and molecularity, rate law, integrated rate equations (zero and first order), collision theory, activation energy, Arrhenius equation. |
7 |
10.00% |
|
Unit IV |
d and f Block Elements |
Transition metals - properties (metallic character, ionization enthalpy, oxidation states, magnetic properties), preparation and properties of K₂Cr₂O₇ and KMnO₄, lanthanoids (oxidation states, reactivity, lanthanoid contraction), actinoids comparison. |
7 |
10.00% |
|
Unit V |
Coordination Compounds |
Ligands, coordination number, IUPAC nomenclature, Werner's theory, VBT, CFT, stereoisomerism, importance in qualitative analysis, extraction of metals, and biological systems. |
7 |
10.00% |
|
Unit VI |
Haloalkanes and Haloarenes |
Nomenclature, C-X bond nature, optical rotation, substitution reactions, uses and environmental effects of halogen compounds like DDT, freons, etc. |
6 |
8.57% |
|
UnitVII |
Alcohols, Phenols, and Ethers |
Alcohols - nomenclature, preparation, properties, identification of primary, secondary, tertiary alcohols; Phenols - electrophilic substitution, uses; Ethers - preparation, properties, uses. |
6 |
8.57% |
|
Unit VIII |
Aldehydes, Ketones, and Carboxylic Acids |
Nomenclature, preparation, properties, nucleophilic addition, alpha hydrogen reactivity, uses of aldehydes and ketones; Carboxylic acids - nomenclature, preparation, properties, uses. |
8 |
11.43% |
|
Unit IX |
Amines and Diazonium Salts |
Nomenclature, preparation, properties, uses, classification of amines; preparation and reactions of diazonium salts, importance in synthetic chemistry. |
6 |
8.57% |
|
Unit X |
Biomolecules |
Carbohydrates - classification, monosaccharides, disaccharides, polysaccharides, importance; Proteins - structure (primary to quaternary), denaturation, enzymes; Vitamins - classification and functions; Nucleic acids - DNA, RNA. |
7 |
10.00% |
|
Chemistry Practical Syllabus (2026-27) |
||
|
S. No. |
Practical Area |
Details |
|
1 |
Surface Chemistry |
1. Preparation of lyophilic and lyophobic sols (e.g., starch, egg albumin, ferric hydroxide). 2. Dialysis of sols. 3. Study of emulsifying agents. |
|
2 |
Chemical Kinetics |
1. Effect of concentration/temperature on reaction rate (e.g., Sodium Thiosulphate & Hydrochloric Acid). 2. Study rates for iodide or potassium iodate reactions. |
|
3 |
Thermochemistry |
1. Enthalpy of dissolution (e.g., Copper Sulphate). 2. Enthalpy of neutralization (e.g., HCl and NaOH). 3. Hydrogen bond formation (e.g., Acetone & Chloroform). |
|
4 |
Electrochemistry |
Study variation of cell potential in Zn/Zn²âº |
|
5 |
Chromatography |
1. Separation of pigments (e.g., leaves, flowers). 2. Separation of inorganic mixture cations by paper chromatography. |
|
6 |
Preparation of Inorganic Compounds |
1. Preparation of double salt (e.g., Ferrous Ammonium Sulphate). 2. Preparation of Potassium Ferric Oxalate. |
|
7 |
Preparation of Organic Compounds |
Synthesis of compounds such as Acetanilide, Di-benzalacetone, or Aniline yellow. |
|
8 |
Tests for Organic Functional Groups |
Identification of functional groups (e.g., aldehyde, ketone, alcohol, amine) in organic compounds. |
|
9 |
Foodstuff Analysis |
Tests for carbohydrates, fats, and proteins in pure samples and foodstuffs. |
|
10 |
Volumetric Analysis |
Determination of KMnOâ‚„ concentration by titration against Oxalic Acid or Ferrous Ammonium Sulphate. |
|
11 |
Qualitative Analysis |
Determination of one cation (e.g., Pb²âº, Cu²âº) and one anion (e.g., SOâ‚„²â», Clâ») in a given salt. |
Whether you're aiming for high scores in the board exams or preparing for competitive exams, knowing the weightage of each chapter and understanding the paper pattern will allow you to focus on important topics and manage your study time wisely. The marking scheme provides a breadkdown of the marks allocated to each chapter.
|
Class XII Chemistry Marking Scheme & Chapter-wise Weightage (2026-27) |
|||
|
Unit |
Title |
Marks |
Weightage |
|
I |
Solutions |
7 |
10.00% |
|
II |
Electrochemistry |
9 |
12.86% |
|
III |
Chemical Kinetics |
7 |
10.00% |
|
IV |
d- and f-Block Elements |
7 |
10.00% |
|
V |
Coordination Compounds |
7 |
10.00% |
|
VI |
Haloalkanes and Haloarenes |
6 |
8.57% |
|
VII |
Alcohols, Phenols and Ethers |
6 |
8.57% |
|
VIII |
Aldehydes, Ketones and Carboxylic Acids |
8 |
11.43% |
|
IX |
Amines |
6 |
8.57% |
|
X |
Biomolecules |
7 |
10.00% |
|
Total |
70 |
100.00% |
|
The exam pattern for Class 12 Chemistry includes a mix of objective, subjective, and analytical questions. Understanding the exam pattern helps students focus on the structure of the exam, including the types of questions, marks distribution, and time allocation. Here’s an overview of the question format and total marks.
|
Class XII Chemistry Exam Pattern (2026-27) |
|||
|
Type of Questions |
No. of Questions |
Marks Per Question |
Total Marks |
|
MCQ |
16 |
1 |
16 |
|
Very short answer type |
5 |
2 |
10 |
|
short answer type |
7 |
3 |
21 |
|
case based questions |
2 |
4 |
8 |
|
long answer type |
3 |
5 |
15 |
|
Total |
33 |
70 |
|
|
Internal Assessment |
30 |
||
|
Grand Total |
100 |
||
|
Evaluation Scheme for Practical Examination |
Marks |
|
Volumetric Analysis |
8 |
|
Salt Analysis |
8 |
|
Content Based Experiment |
6 |
|
Project Work |
4 |
|
Class record and viva |
4 |
|
Total |
30 |
Here is the latest paper design of class 12th Chemistry subject.
|
Class XII Chemistry Paper Design & Weightage (2026-27) |
|||
|
Competency |
Description |
Total Marks |
Weightage % |
|
Remembering and Understanding |
Exhibit memory of previously learned material by recalling facts, terms, basic concepts and answers. Demonstrate understanding of facts and ideas by organizing, comparing, translating, interpreting, giving descriptions and stating main ideas. |
28 |
40 |
|
Applying |
Solve problems to new situations by applying acquired knowledge, facts, techniques and rules in a different way. |
21 |
30 |
|
Analysing, Evaluating and Creating |
Examine and break information into parts by identifying motives or causes. Make inferences and find evidence to support generalizations. Present and defend opinions by making judgments about information, validity of ideas or quality of work based on a set of criteria. Compile information together in a different way by combining elements in a new pattern or proposing alternative solutions. |
21 |
30 |
|
Total |
70 |
100 |
|
The following chapter list represents the current mapped curriculum for academic session 2026-27.
These chapters belong to earlier NCERT editions and are retained for historical reference and students using older books.
Understanding the Class 12 Chemistry syllabus and marking scheme is vital for students aiming to perform well in their CBSE board exams. Here’s why:
Focused Study Approach: The syllabus provides a detailed outline of all the topics to be covered, helping you focus on the essential concepts in Physical, Organic, and Inorganic Chemistry. The marking scheme gives you clarity on which chapters carry more weight, enabling you to prioritize high-scoring topics like Electrochemistry, Chemical Kinetics, and Organic Reactions.
Efficient Time Management: Knowing the marks distribution across different units allows you to allocate study time efficiently. You can spend more time on high-weightage units while still covering the entire syllabus, ensuring balanced preparation.
Clarity on Exam Structure: The marking scheme reveals the types of questions that will appear in the exam, including objective, short-answer, and long-answer questions. Familiarity with the exam pattern reduces uncertainty and helps you practice according to the expected question format.
Informed Revision Planning: With knowledge of the syllabus and marking scheme, you can create a more effective revision plan. You’ll know which areas require more in-depth study and which ones can be revised quickly, ensuring that you’re fully prepared for the exam.
Boosted Confidence: Being aware of what to study and how it will be evaluated in the exam helps reduce anxiety. With a well-structured study plan based on the syllabus and marking scheme, you can approach the exam with greater confidence and clarity.
In summary, knowing the syllabus and marking scheme helps you prepare strategically, manage your time effectively, and approach your Class 12 Chemistry exam with the right focus.
Class 12 Chemistry demands a balanced approach to both theoretical concepts and numerical problems. Here are some essential tips to help you prepare effectively:
Thoroughly Study the NCERT Textbook: The NCERT Chemistry textbook is your primary resource for board exam preparation. Read each chapter carefully and make sure you understand all the fundamental concepts. Many questions in the exam are directly based on NCERT content, so mastering this textbook is essential.
Understand Concepts, Not Just Facts: Chemistry involves understanding processes, reactions, and principles. Avoid rote memorization and instead focus on understanding the reasoning behind chemical reactions, mechanisms, and equations. This is especially important for topics like Organic Chemistry and Thermodynamics.
Create a Study Plan: Divide the syllabus into smaller sections and allocate study time based on the importance of each unit according to the marking scheme. Ensure your study plan covers all topics, including Physical, Organic, and Inorganic Chemistry, with enough time for revision.
Practice Numerical Problems Regularly: Physical Chemistry contains many numerical problems that require consistent practice. Focus on chapters like Electrochemistry, Chemical Kinetics, and Thermodynamics, and solve a variety of problems to build speed and accuracy.
Master Organic Chemistry Reactions: Organic Chemistry is one of the most challenging sections due to the numerous reactions and mechanisms. Make concise notes of important reactions, reagents, and conditions, and practice drawing mechanisms to retain them better.
Solve Previous Years’ Papers: Solving past board exam papers and sample papers helps you get familiar with the question pattern and improves time management. Aim to solve at least 5–10 years of previous question papers to gain confidence and identify common question trends.
Focus on Diagrams and Equations: Chemistry exams often include questions that require well-labeled diagrams and balanced chemical equations. Practice drawing accurate diagrams, such as molecular structures or electrochemical cells, and ensure you can write balanced equations for reactions.
Regular Revision: Consistent revision is key to retaining all the information you’ve learned. Use summary notes or flashcards for quick revision, especially for topics with complex reactions or formulas. Allocate enough time for final revisions before the exam.
Prepare for Practicals: Don’t neglect the practical part of the syllabus, as it carries significant marks. Review your lab manual, practice experiments, and understand the principles behind them. Ensure you can write neat and accurate lab records, as they contribute to your overall score.
Stay Calm and Confident: Preparing for Class 12 Chemistry can be overwhelming, but maintaining a calm and positive mindset is crucial. Practice relaxation techniques, take breaks when needed, and stay consistent with your study schedule to avoid burnout.
By following these preparation strategies, you can tackle the Class 12 Chemistry syllabus with confidence and perform well in your board exams.
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