CBSE Class 12 Chemistry 2023-24 Syllabus, Exam Pattern, Sample Papers

Physics Wallah Academic Expert
May 01, 2024

CBSE Class 12 Chemistry 2023-24: CBSE has released the details for the CBSE class 12 chemistry 2023-24 exam. Chemistry is a highly important subject in the CBSE board exams. CBSE Class 12 Chemistry is meticulously designed to offer students a comprehensive understanding of the fundamental principles and concepts in chemistry, as well as their real-world applications. This subject equips students with the knowledge and competencies necessary for success in various competitive examinations and further studies in science. This article has all the information about the CBSE Class 12 Chemistry 2023-2024 exam.

CBSE Class 12 Chemistry 2023-24 Overview

CBSE Class 12 Chemistry 2023-24 is a pivotal subject, arming students with the requisite knowledge and abilities to comprehend the realm of chemistry and its practical utility. It establishes a sturdy academic foundation and serves as a gateway to diverse career prospects in science and technology. 

The CBSE Class 12 Chemistry syllabus’s practical component encompasses experiments and exercises intended to facilitate students' comprehension of the real-world applications of chemical principles and enhance their laboratory competencies.

Also Read: CBSE Sample Papers 2023-2024 Class 10 With Solutions

CBSE Class 12 Chemistry evaluation comprises both theoretical and practical assessments. The theoretical assessment usually features a combination of objective and subjective questions that gauge the students' grasp of concepts and problem-solving proficiency. The practical assessment, on the other hand, evaluates students' competence in conducting experiments, documenting observations, and formulating conclusions.

Recommended Books for Class 12 Board Exams:

Weightage of CBSE Class 12 Chemistry 2023-24 Chapter-Wise

In Chemistry, the theoretical part carries a weightage of 70 marks, while the practical part is responsible for the remaining 30 marks. The following table presents the CBSE Class 12 exam pattern for Chemistry chapters and the associated marking scheme. Check the table below for more information:

S.No. Chapter Name Marks
  Inorganic Chemistry 7
1 Solutions 9
2 Electrochemistry 7
3 Chemical Kinetics 7
4 d -and f-Block Elements 7
5 Coordination Compounds 6
  Organic Chemistry  
6 Haloalkanes and Haloarenes 6
7 Alcohols, Phenols and Ethers 6
8 Aldehydes, Ketones and Carboxylic Acids 8
9 Amines 6
10 Biomolecules 7
  Total 70

CBSE Class 12 Chemistry 2023-24 Syllabus

The CBSE Board has published the revised CBSE Class 12 Chemistry Syllabus for the academic year 2023-24, specifically aimed at students in the science stream. The CBSE 12th Chemistry Syllabus for 2023-24 can be accessed on the official website 

It is imperative for Class 12 students preparing for the annual board exams to review the CBSE Class 12 Chemistry Syllabus for the 2023-24 session, as it offers insights into the types of questions that may appear in the exam. This comprehensive syllabus includes a breakdown of all the units, topics, and their respective weightage in terms of marks. 

For the benefit of students, we have outlined the CBSE 12th Chemistry Syllabus for 2023-24, chapter by chapter. The CBSE Class 12 Chemistry Syllabus for 2023-24 serves as a valuable resource, aiding students in planning their study strategies. It assists them in identifying the topics that require greater focus to achieve higher marks. 

Also Read: CBSE Class 10 Pre Board Sample Papers 2023-24: Download Subject-Wise PDF

Students are encouraged to thoroughly cover all the topics and chapters listed below well in advance of the main examinations, allowing ample time for effective revision. Check the table below for more details:

CBSE Class 12 Chemistry 2023-24 Syllabus

Unit No. Syllabus
Unit II: Solutions (10 Periods) Topics in this unit include various types of solutions, the representation of concentration for solutions containing solids in liquids, the solubility of gases in liquids, solid solutions, Raoult's law, colligative properties encompassing the relative reduction of vapour pressure, the increase in boiling point, the decrease in freezing point, osmotic pressure, the calculation of molecular masses through colligative properties, unusual molecular mass situations, and the Van't Hoff factor.
Unit III: Electrochemistry (12 Periods) This unit explores subjects such as redox reactions, the electromotive force (EMF) of a cell, standard electrode potential, the Nernst equation and its application to chemical cells, the correlation between changes in Gibbs energy and cell EMF, conductance in electrolytic solutions, specific and molar conductivity, variations in conductivity concerning concentration, Kohlrausch's Law, electrolysis, the principles of electrolysis (with a basic understanding), dry cells, electrolytic cells, galvanic cells, lead-acid batteries, fuel cells, and the phenomenon of corrosion.
Unit IV: Chemical Kinetics (10 Periods) This section delves into the rate of reactions, encompassing both average and instantaneous rates, and the factors influencing reaction rates, including concentration, temperature, and catalysts. It also addresses concepts such as the order and molecularity of reactions, rate laws, specific rate constants, integrated rate equations, and half-life (limited to zero and first-order reactions). Additionally, it introduces the basics of collision theory without mathematical treatment, the concept of activation energy, and the Arrhenius equation.
Unit VIII: d and f Block Elements (12 Periods) This unit provides an overview of d and f block elements, including their electronic configurations, occurrences, and characteristics. It covers general trends in properties, such as metallic character, ionisation enthalpy, oxidation states, ionic radii, colour, catalytic properties, magnetic properties, interstitial compounds, alloy formation, and the preparation and characteristics of K2Cr2O7 and KMnO4. Furthermore, it explores the lanthanides, focusing on electronic configurations, oxidation states, chemical reactivity, and the lanthanoid contraction. It also compares actinides with lanthanide, examining electronic configurations and oxidation states.
Unit IX: Coordination Compounds (12 Periods) This unit introduces coordination compounds, including topics like ligands, coordination numbers, colour, magnetic properties, shapes, IUPAC nomenclature for mononuclear coordination compounds, bonding theories such as Werner's theory, VBT, and CFT. It also covers structure and stereoisomerism and emphasises the significance of coordination compounds in qualitative analysis, metal extraction, and biological systems.
Unit X: Haloalkanes and Haloarenes (10 Periods) In this section, we explore haloalkanes and haloarenes, discussing nomenclature, the nature of the C–X bond, physical and chemical properties, optical rotation, and substitution mechanisms. We also examine the directive influence of halogens in monosubstituted compounds and their uses and environmental effects. Specifically, we consider dichloromethane, trichloromethane, tetrachloromethane, iodoform, freons, and DDT.
Unit XI: Alcohols, Phenols, and Ethers (10 Periods) This unit covers alcohols, phenols, and ethers, detailing their nomenclature, preparation methods, physical and chemical properties (primarily focusing on primary alcohols), and the identification of primary, secondary, and tertiary alcohols. We explore the mechanisms of dehydration and emphasise the applications of methanol and ethanol. Additionally, we address phenols, covering their nomenclature, preparation, properties, acidic nature, electrophilic substitution reactions, and uses. Lastly, we delve into ethers, discussing their nomenclature, preparation, properties, and practical applications.
Unit XII: Aldehydes, Ketones, and Carboxylic Acids (10 Periods) In this unit, we delve into aldehydes, ketones, and carboxylic acids, covering their nomenclature, the characteristics of the carbonyl group, preparation methods, physical and chemical properties, mechanisms of nucleophilic addition, and the reactivity of alpha hydrogens in aldehydes. We also highlight their various applications. Furthermore, we explore carboxylic acids, including their nomenclature, acidic properties, preparation methods, physical and chemical characteristics, and practical uses.
Unit XIII: Amines (10 Periods) The topic of amines encompasses their nomenclature, classification, structure, preparation methods, physical and chemical properties, practical applications, and the differentiation of primary, secondary, and tertiary amines. Additionally, we explore diazonium salts, covering their preparation, chemical reactions, and their significance in synthetic organic chemistry.
Unit XIV: Biomolecules (12 Periods) This unit focuses on biomolecules, beginning with carbohydrates. We discuss their classification, including aldoses and ketoses, and delve into monosaccharides such as glucose and fructose. We also explore D-L configurations and oligosaccharides (e.g., sucrose, lactose, maltose) and polysaccharides (e.g., starch, cellulose, glycogen), emphasising the importance of carbohydrates. The unit then shifts to proteins, introducing amino acids, peptide bonds, polypeptides, and the structural hierarchy of proteins, including primary, secondary, tertiary, and quaternary structures (with a qualitative overview). We also touch on protein denaturation and enzymes. Additionally, the unit briefly mentions hormones (excluding structural details) and explores vitamins, their classification, and functions. Finally, we address nucleic acids, specifically DNA and RNA.

CBSE Class 12 Chemistry 2023-24 Practical Syllabus

Here is the practical syllabus for CBSE class 12 chemistry 2023-24:

Activity Marks
Volumetric Analysis 8
Salt Analysis 8
Content-Based Experiment 6
Project Work 4
Class Record and VIVA 4
Total 30

Also Read: NEET Chemistry Syllabus 2024

Surface Chemistry

  • Creation of a lyophilic and a lyophobic sol:

    • Lyophilic sol examples include starch, egg albumin, and gum.

    • Lyophobic sol examples are aluminium hydroxide, ferric hydroxide, and arsenic sulphide.

  • Dialysis of the sols created.

  • Examination of the role of emulsifying agents in stabilising oil emulsions.

Chemical Kinetics

  • Investigation of how concentration and temperature impact the reaction rate between Sodium Thiosulfate and Hydrochloric acid.

  • Assessment of reaction rates for one of the following:

    • Iodide ion reaction with Hydrogen Peroxide at room temperature using varying Iodide ion concentrations.

    • Reaction between Potassium Iodate (KIO₃) and Sodium Sulphite (Na₂SO₃) using starch solution as an indicator (clock reaction).


  • Choice of one experiment from the following:

    • Determining the enthalpy of dissolution of Copper Sulphate or Potassium Nitrate.

    • Determining the enthalpy of neutralisation of hydrochloric acid (HCl) and sodium hydroxide (NaOH).

    • Determining the enthalpy change during the interaction (hydrogen bond formation) between Acetone and Chloroform.


  • Exploration of cell potential variation in Zn/Zn²⁺|| Cu²⁺/Cu with changes in the concentration of electrolytes (CuSO₄ or ZnSO₄) at room temperature.


  • Separation of pigments from leaf and flower extracts using paper chromatography and calculating Rf values.

  • Separation of constituents in an inorganic mixture containing two cations with substantial differences in Rf values.

Preparation of Inorganic Compounds

  • Preparation of a double salt of Ferrous Ammonium Sulphate or Potash Alum.

  • Preparation of Potassium Ferric Oxalate.

Preparation of Organic Compounds

  • Preparation of one of the following compounds:

    • Acetanilide.

    • Di-benzalAcetone.

    • p-Nitroacetanilide.

    • Aniline yellow.

    • 2-Naphthol Aniline dye.

  • Testing for functional groups in organic compounds, including unsaturation, alcoholic, phenolic, aldehydic, ketonic, carboxylic, and amino (primary) groups.

  • Characteristic tests for carbohydrates, fats, and proteins in pure samples and detecting them in provided food items.

Determination of Concentration/Molarity

  • Determining the concentration/molarity of KMnO4 solution by titrating it against a standard solution of:

    • Oxalic acid.

    • Ferrous Ammonium Sulphate.

Qualitative Analysis

  • Identifying one cation and one anion in a given salt:

    • Cations – Pb²⁺, Cu²⁺, As³⁺, Al³⁺, Fe³⁺, Mn²⁺, Zn²⁺, Ni²⁺, Ca²⁺, Sr²⁺, Ba²⁺, Mg²⁺, NH⁴⁺.

    • Anions – (CO₃)²⁻, S²⁻, (SO₃)²⁻, (NO₂)⁻, (SO₄)²⁻, Cl⁻, Br⁻, I⁻, (PO₄)³⁻, (C₂O₄)²⁻, CH₃COO⁻, NO³⁻.

CBSE Class 12 Chemistry 2023-24 Project

  • Investigation of the presence of oxalate ions in guava fruit at various ripening stages.

  • Determination of casein content in different milk samples.

  • Preparation of soyabean milk and comparison with natural milk concerning curd formation and the impact of temperature.

  • Study of the effectiveness of Potassium Bisulfate as a food preservative under different conditions (temperature, concentration, time, etc.).

  • Investigation of starch digestion by salivary amylase and the effects of pH and temperature.

  • Comparative analysis of the fermentation rate of materials such as wheat flour, gram flour, potato juice, carrot juice, etc.

  • Extraction of essential oils from aniseed, carum, and cardamom.

  • Study of common food adulterants in fat, oil, butter, sugar, turmeric powder, chilli powder, and pepper.

Also Read: ICSE Class 10 Date Sheet 2024

CBSE Class 12 Chemistry 2023-24 Deleted Syllabus

The CBSE board has published the most recent syllabus for senior secondary students studying Chemistry, along with other Science stream subjects on their official academic website. In the aftermath of the pandemic, the syllabus has been updated for various subjects, with the intention of reverting to the traditional annual board examination format. Below, you will find the CBSE Class 12 Chemistry Revised Syllabus for the 2023-24 academic year, presented in a tabular format that lists the omitted topics unit by unit and chapter by chapter.

SL.No Unit Deleted Topic
1 Unit IV: Surface Chemistry (whole chapter deleted)
2 Unit V: General Principles and Processes of Isolation of Elements (whole chapter deleted)
3 Unit VI: p -Block Elements (whole chapter deleted)
4 Unit XIII: Biomolecules (whole chapter deleted)
5 Unit XIV: Polymers (whole chapter deleted)
6 Unit XII: Organic compounds containing Nitrogen

Renamed to Amines (Unit 9)

Cyanides and Isocyanides

List of Deleted Topics from CBSE Chemistry for Class 12

Sl.No. Chapter Page No. Dropped Topics/Chapters
1 Unit 1: The Solid State 1–34 Full Chapter
2 Unit 5: Surface Chemistry 123–148 Full Chapter
3 Unit 6: General Principles and Processes of Isolation of Elements 149–169 Full Chapter
4 Unit 7: The p-Block Elements 170–214 Full Chapter
  Chemistry Part 2    
5 Unit 15: Polymers 433–446 Full Chapter
6 Unit 16: Chemistry in Everyday Life 447–463 Full Chapter

CBSE Class 12 Chemistry 2023-2024 Sample Paper

The CBSE Class 12 Chemistry sample papers serve as a valuable resource for students, offering them a preliminary understanding of the final examination. These chemistry questions, designed in line with the CBSE Class 12 Syllabus, encompass a range of difficulty levels, ensuring comprehensive coverage. Our subject matter experts have thoughtfully solved the Class 12 CBSE Chemistry Sample Question Paper with Solutions, making it easily comprehensible for students. Check the table below for more details:

CBSE Class 12 Chemistry 2023-2024 Sample Paper

Sl.No CBSE Class 12 Chemistry 2023-2024 Sample Paper Download Links
1 CBSE Class 12 Chemistry 2023-2024 Sample Paper Set 1
2 CBSE Class 12 Chemistry 2023-2024 Sample Paper Set 2
3 CBSE Class 12 Chemistry 2023-2024 Sample Paper Set 3
4 CBSE Class 12 Chemistry 2023-2024 Sample Paper Set 4

CBSE Class 12 Chemistry 2023-24 Admit Card Steps to Download

The Central Board of Secondary Education (CBSE) is expected to release the admit cards for the Class 12 Chemistry examination in the 2023-24 academic session in February 2024. The admit card is a crucial document that students must carry to the exam venue and contains important information about the student and the exam, such as the student's name, roll number, date of birth, exam date, exam time, exam centre, and subject code.

To obtain the CBSE Class 12 Chemistry admit card for the 2023-24 academic session, students can follow these steps:

  1. Visit the official CBSE website.

  2. Click on the link labelled "CBSE Class 12 Admit Card Download 2024."

  3. The 'Authentication details' page will appear.

  4. Enter your school code and centre number.

  5. Click the 'Submit' button.

  6. You will be directed to a page where you can enter your roll number.

  7. Enter your roll number and click the 'Submit' button.

  8. Your admit card will be displayed on the screen.

  9. Proceed to download and print a copy of your admit card for future reference.

Please note that the CBSE Class 12 Chemistry admit card for the 2023-24 academic session will not be sent to students via postal services. Therefore, students must obtain their admit cards exclusively from the official CBSE website.

CBSE Class 12 Chemistry 2023-24 Preparation Tips

Preparing for CBSE Class 12 Chemistry can be a challenging task, but with the right strategies and focus, you can excel in the subject. Here are some highly specific and relevant tips to help you prepare effectively for your CBSE Class 12 Chemistry exams:

  1. Understand the Syllabus: Begin your preparation by thoroughly understanding the CBSE Class 12 Chemistry syllabus. This will give you a clear idea of what topics you need to cover.

  2. Organise Your Study Material: Organise your textbooks, notes, and reference materials in a systematic manner. Ensure you have easy access to important formulas, diagrams, and reactions.

  3. Master the Basics: Chemistry is built on fundamental concepts. Make sure you have a strong grasp of concepts like the periodic table, chemical bonding, stoichiometry, and atomic structure. These are the foundation of more complex topics.

  4. Practice Regularly: Chemistry requires regular practice. Solve a wide variety of problems, especially numerical and chemical equations. This will help you become comfortable with the application of concepts.

  5. Study In-Depth: Don't just memorise. Understand the underlying principles. For example, when studying organic chemistry, understand reaction mechanisms and how different functional groups interact.

  6. Use Mnemonics and Visual Aids: Chemistry involves a lot of information, including chemical reactions, formulas, and nomenclature. Mnemonics and visual aids like charts and diagrams can help you remember complex information easily.

  7. Balancing Chemical Equations: Practise balancing chemical equations until you can do it quickly and accurately. This skill is fundamental and comes up in many topics, including stoichiometry and chemical kinetics.

  8. Chemical Nomenclature: Pay special attention to chemical nomenclature, which involves naming compounds and understanding their formulas. Practise this regularly to avoid confusion during exams.

  9. Electrochemistry: Understand the concepts of electrochemistry thoroughly, including cell potential, electrolysis, and the Nernst equation. These are often challenging topics for students.

  10. Spectroscopy and Analytical Chemistry: Be sure to practise problems related to spectroscopy, chromatography, and other analytical techniques. These are significant parts of the CBSE Class 12 Chemistry syllabus.

  11. Environmental Chemistry: Environmental chemistry is a relevant and often overlooked topic. Study the concepts related to environmental pollution, greenhouse gases, and their impact on the environment.

  12. Chemical Kinetics: This topic deals with reaction rates and mechanisms. Understand the factors affecting reaction rates and practice solving problems related to kinetics.

  13. Reference Books: While NCERT textbooks are essential, you can also refer to supplementary textbooks like Pradeep's Chemistry, OP Tandon, and P. Bahadur for additional practice and explanations.

  14. Previous Year Question Papers: Solve previous year question papers and sample papers to get a feel for the exam pattern. This will also help you identify important topics and trends.

CBSE Class 12 Chemistry 2023-24 FAQs

Q1: What is the CBSE Class 12 Chemistry syllabus for 2023-24?

Ans: The CBSE Class 12 Chemistry syllabus for 2023-24 has 10 units and covers a wide range of topics, including solutions, electrochemistry, chemical kinetics, d- and f-block elements, coordination compounds, haloalkanes and haloarenes, alcohols, phenols and ethers, aldehydes, ketones and carboxylic acids, amines, and biomolecules.

Q2: What should I do if I am struggling in CBSE Class 12 Chemistry?

Ans: If you are struggling in CBSE Class 12 Chemistry, don't hesitate to seek help from your teacher, a tutor, or a classmate. You can also find many helpful resources online. The most important thing is to not give up and keep practising until you understand the concepts and can solve the problems.

Q3. What are the important tips for preparing for the CBSE Class 12 Chemistry exam?

Ans: Start early, revise regularly, understand concepts thoroughly, solve previous year question papers and sample papers, practice answering questions in the correct format, and take care of your health.

Q4. What are the best books for CBSE Class 12 Chemistry?

Ans: NCERT Chemistry Class 12 textbooks, NCERT Chemistry Exemplar Class 12, OP Tandon's Inorganic Chemistry Class 12, Physical Chemistry by P. Bahadur, and Organic Chemistry by OP Tandon.

Q5. What are the passing marks for CBSE Class 12 Chemistry?

Ans: The passing marks for CBSE Class 12 Chemistry are 33% for each of the theory and practical exams. However, students are advised to aim for higher marks in order to secure good grades and college admissions.

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