CBSE Class 12 Chemistry Syllabus 2023-24 (Latest) PDF Download

CBSE Class 12 Chemistry Syllabus for the academic year 2023 is available on this page for free download. So the Candidates who have been searching for the CBSE 12th Class Syllabus can get the subject-wise syllabus from this page. The Officials of the CBSE have released the CBSE 12th class Chemistry Revised Syllabus on its official web page.

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CBSE Class 12 Chemistry Syllabus PDF

Name of the BoardCentral Board of Secondary Education
ClassClass 12
CategoryCBSE Chemistry Syllabus

CBSE Class 12 Chemistry Revised Syllabus 2023

CBSE Class 12 Chemistry Syllabus 2023-2 PDF: The CBSE Class 12 Chemistry Syllabus PDF is available on this page for the academic Year 2023. The Officials of the Central Board of Secondary Education have released the Class 12 Chemistry Syllabus 2023 on its Official Portal @ the Students can able to download the CBSE Class 12 Chemistry Rationalized Curriculum Now from here. The Candidates can get the CBSE Class 12 Chemistry Syllabus from here. Click on the below-attached PDF links to Download the CBSE Syllabus 2023 for All Subjects of the Academic Year 2023. CBSE Chemistry syllabus was reduced due to the pandemic Situation. And the New CBSE syllabus is now available Online for Download and The Scheme of the CBSE Class 12 Chemistry Exam is also available Now.

CLASS XII (2023-24) (THEORY)

Time : 3 Hours                                                                                                                                                                       70 Marks

S.No.TitleNo. of PeriodsMarks
3Chemical Kinetics107
4d -and f -Block Elements127
5Coordination Compounds127
6Haloalkanes and Haloarenes106
7Alcohols, Phenols and Ethers106
8Aldehydes, Ketones and Carboxylic Acids108
 Total 70


Unit II: Solutions                                                                                                                                                                       10 Periods

Types of solutions, expression of concentration of solutions of solids in liquids, solubility of gases in liquids, solid solutions, Raoult’s law, colligative properties – relative lowering of vapour pressure, elevation of boiling point, depression of freezing point, osmotic pressure, determination of molecular masses using colligative properties, abnormal molecular mass, Van’t Hoff factor.

Unit III: Electrochemistry                                                                                                                                                                       12 Periods

Redox reactions, EMF of a cell, standard electrode potential, Nernst equation and its application to chemical cells, Relation between Gibbs energy change and EMF of a cell, conductance in electrolytic solutions, specific and molar conductivity, variations of conductivity with concentration, Kohlrausch’s Law, electrolysis and law of electrolysis (elementary idea), dry cell-electrolytic cells and Galvanic cells, lead accumulator, fuel cells, corrosion.

Unit IV: Chemical Kinetics                                                                                                                                                                       10 Periods

Rate of a reaction (Average and instantaneous), factors affecting rate of reaction: concentration, temperature, catalyst; order and molecularity of a reaction, rate law and specific rate constant, integrated rate equations and half-life (only for zero and first order reactions), concept of collision theory (elementary idea, no mathematical treatment), activation energy, Arrhenius equation

Unit VIII: d and f Block Elements                                                                                                                                                                       12 Periods

General introduction, electronic configuration, occurrence and characteristics of transition metals, general trends in properties of the first row transition metals – metallic character, ionization enthalpy, oxidation states, ionic radii, colour, catalytic property, magnetic properties, interstitial compounds, alloy formation, preparation and properties of K2Cr2O7 and KMnO4.

Lanthanoids – Electronic configuration, oxidation states, chemical reactivity and lanthanoid contraction and its consequences.

Actinoids – Electronic configuration, oxidation states and comparison with lanthanoids.

Unit IX: Coordination Compounds                                                                                                                                                                       12 Periods 

Coordination compounds – Introduction, ligands, coordination number, colour, magnetic properties and shapes, IUPAC nomenclature of mononuclear coordination compounds. Bonding, Werner’s theory, VBT, and CFT; structure and stereoisomerism, importance of coordination compounds (in qualitative analysis, extraction of metals and biological system).

Unit X: Haloalkanes and Haloarenes.                                                                                                                                                                       10 Periods

Haloalkanes: Nomenclature, nature of C–X bond, physical and chemical properties, optical rotation mechanism of substitution reactions.

Haloarenes: Nature of C–X bond, substitution reactions (Directive influence of halogen in monosubstituted compounds only).

Uses and environmental effects of – dichloromethane, trichloromethane, tetrachloromethane, iodoform, freons, DDT.

Unit XI: Alcohols, Phenols and Ethers                                                                                                                                                                      10 Periods

Alcohols: Nomenclature, methods of preparation, physical and chemical properties (of primary alcohols only), identification of primary, secondary and tertiary alcohols, mechanism of dehydration, uses with special reference to methanol and ethanol.

Phenols: Nomenclature, methods of preparation, physical and chemical properties, acidic nature of phenol, electrophillic substitution reactions, uses of phenols.

Ethers: Nomenclature, methods of preparation, physical and chemical properties, uses.

Unit XII: Aldehydes, Ketones and Carboxylic Acids                                                                                                                                                                       10 Periods

Aldehydes and Ketones: Nomenclature, nature of carbonyl group, methods of preparation, physical and chemical properties, mechanism of nucleophilic addition, reactivity of alpha hydrogen in aldehydes, uses.

Carboxylic Acids: Nomenclature, acidic nature, methods of preparation, physical and chemical properties; uses.

Unit XIII: Amines                                                                                                                                                                       10 Periods

Amines: Nomenclature, classification, structure, methods of preparation, physical and chemical properties, uses, identification of primary, secondary and tertiary amines.

Diazonium salts: Preparation, chemical reactions and importance in synthetic organic chemistry.

Unit XIV: Biomolecules                                                                                                                                                                       12 Periods

Carbohydrates – Classification (aldoses and ketoses), monosaccahrides (glucose and fructose), D-L configuration oligosaccharides (sucrose, lactose, maltose), polysaccharides (starch, cellulose, glycogen); Importance of carbohydrates.

Proteins –Elementary idea of – amino acids, peptide bond, polypeptides, proteins, structure of proteins

– primary, secondary, tertiary structure and quaternary structures (qualitative idea only), denaturation of proteins; enzymes. Hormones – Elementary idea excluding structure.

Vitamins – Classification and functions.

Nucleic Acids: DNA and RNA.


Evaluation Scheme for ExaminationMarks
Volumetric Analysis08
Salt Analysis08
Content Based Experiment06
Project Work04
Class record and viva04

 PRACTICAL SYLLABUS                                                                                                                                      60Periods

Micro-chemical methods are available for several of the practical experiments. Wherever possible, such techniques should be used.

A.  Surface Chemistry

  • Preparation of one lyophilic and one lyophobic sol Lyophilic sol – starch, egg albumin and gum

Lyophobic sol – aluminium hydroxide, ferric hydroxide, arsenous sulphide.

  • Dialysis of sol-prepared in (a) above.
  • Study of the role of emulsifying agents in stabilizing the emulsion of different

B.  Chemical Kinetics

  • Effect of concentration and temperature on the rate of reaction between Sodium Thiosulphate and Hydrochloric acid.
  • Study of reaction rates of any one of the following:
    • Reaction of Iodide ion with Hydrogen Peroxide at room temperature using different concentration of Iodide
    • Reaction between Potassium Iodate, (KIO3) and Sodium Sulphite: (Na2SO3) using starch solution as indicator (clock reaction).

C.  Thermochemistry

Any one of the following experiments

  1. Enthalpy of dissolution of Copper Sulphate or Potassium Nitrate.
  2. Enthalpy of neutralization of strong acid (HCI) and strong base (NaOH).
  • Determination of enthaply change during interaction (Hydrogen bond formation) between Acetone and

D.  Electrochemistry

Variation of cell potential in Zn/Zn2+|| Cu2+/Cu with change in concentration of electrolytes (CuSO4 or ZnSO4) at room temperature.

E.  Chromatography

  1. Separation of pigments from extracts of leaves and flowers by paper chromatography and determination of Rf
  2. Separation of constituents present in an inorganic mixture containing two cations only (constituents having large difference in Rf values to be provided).

F.      Preparation of Inorganic Compounds

Preparation of double salt of Ferrous Ammonium Sulphate or Potash Alum. Preparation of Potassium Ferric Oxalate.

G.     Preparation of Organic Compounds

Preparation of any one of the following compounds

  1. i) Acetanilide ii) Di -benzalAcetone iii) p-Nitroacetanilide iv) Aniline yellow or 2 – Naphthol

H.     Tests for the functional groups present in organic compounds:

Unsaturation, alcoholic, phenolic, aldehydic, ketonic, carboxylic and amino (Primary) groups.

  1. Characteristic tests of carbohydrates, fats and proteins in pure samples and their detection in given

J.      Determination of concentration/ molarity of KMnO4 solution by titrating it against a standard solution of:

  1. Oxalic acid,
  2. Ferrous Ammonium Sulphate

(Students will be required to prepare standard solutions by weighing themselves). K.

Qualitative analysis

Determination of one cation and one anion in a given salt.

Cation : Pb2+, Cu2+ As3+, Aℓ3+, Fe3+, Mn2+, Zn2+, Cu2+, Ni2+, Ca2+, Sr2+, Ba2+, Mg2+, NH +

Anions: (CO3)2-, S2-, (SO3)2-, (NO2), (SO4)2-, Cℓ, Br, I, PO3- , (C2O4)2-, CH3COO,NO

(Note: Insoluble salts excluded) PROJECT

Scientific investigations involving laboratory testing and collecting information from other sources A

few suggested Projects.

  • Study of the presence of oxalate ions in guava fruit at different stages of
  • Study of quantity of casein present in different samples of
  • Preparation of soybean milk and its comparison with the natural milk with respect to curd formation, effect of temperature,
  • Study of the effect of Potassium Bisulphate as food preservative under various conditions (temperature, concentration, time, )
  • Study of digestion of starch by salivary amylase and effect of pH and temperature on
  • Comparative study of the rate of fermentation of following materials: wheat flour, gram flour, potato juice, carrot juice,
  • Extraction of essential oils present in Saunf (aniseed), Ajwain (carum), Illaichi (cardamom).
  • Study of common food adulterants in fat, oil, butter, sugar, turmeric power, chilli powder and pepper. Note: Any other investigatory project, which involves about 10 periods of work, can be chosen with the approval of the teacher

Practical Examination for Visually Impaired Students of Classes XI and XII Evaluation Scheme

Time Allowed: Two hours                                                                                                                                   Max. Marks:3

Identification/Familiarity with the apparatus5 marks
Written test (based on given/prescribed practicals)10 marks
Practical Record5 marks
Viva10 marks
Total30 marks

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