CBSE Class 12 Chemistry Syllabus 2023-24 | Free PDF Download

CBSE Class 12 Chemistry Syllabus are released by Central Board of Secondary Education (CBSE). For a better preparation, students must thoroughly go through the latest syllabus and marking scheme. Otherwise, students may be confused, from which part or chapter they should start first. A PDF of the Class 12 Chemistry Syllabus is given below. So, directly download it and utilize for better study strategy. Students must always know, which chapters are more important and which chapter contain maximum marks. So, they will have the better idea to prepare for a better study plan.Class 12 Board are a crucial step for all the students as it decide the future and the selection of colleges or universities also depends on Class 12 Board exam. So, it should taking very seriously and need a properly study plan strategy. That’s why always focus on the latest syllabus and marking scheme for a better plan. You can also download the latest CBSE class 12 Chemistry syllabus from the CBSE official website – cbse.gov.in.A direct link to download CBSE Class 12 Chemistry Syllabus PDF is also provided below for the students.

CBSE Class 12 Chemistry Course Structure 2023-24

Class 12 Chemistry syllabus has many parts so its important to know the subject-wise weightage for better preparation. Here’s the course structure with mark weightage for your better preparation.

Units	Topic	No. of Periods	Marks
1	Solutions	10	7
2	Electrochemistry	12	9
3	Chemical Kinetics	10	7
4	d -and f -Block Elements	12	7
5	Coordination Compounds	12	7
6	Haloalkanes and Haloarenes	10	6
7	Alcohols, Phenols and Ethers	10	6
8	Aldehydes, Ketones and Carboxylic Acids	10	8
9	Amines	10	6
10	Biomolecules	12	7
	TOTAL		70

CBSE Class 12 Chemistry Syllabus 2023-24

Here’s a detailed structure of CBSE Class 12 Chemistry syllabus 2023-24:

Unit 2: Solutions

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 3: Electrochemistry

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 4: Chemical Kinetics

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 8: d and f Block Elements

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 9: Coordination Compounds

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, the importance of coordination compounds (in qualitative analysis, extraction of metals and biological system).

Unit 10: Haloalkanes and Haloarenes

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 11: Alcohols, Phenols and Ethers

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, electrophilic substitution reactions, uses of phenols.Ethers: Nomenclature, methods of preparation, physical and chemical properties, uses.

Unit 12: Aldehydes, Ketones and Carboxylic Acids

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 13: Amines

Amines: Nomenclature, classification, structure, methods of preparation, physical and chemical properties, uses, identification of primary, secondary and tertiary aminesDiazonium salts: Preparation, chemical reactions and importance in synthetic organic chemistry.

Unit 14: Biomolecules

Carbohydrates – Classification (aldoses and ketoses), monosaccharides (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.

CBSE Class 12 Chemistry Question Paper Design 2023-24

Domain	Marks	Percentage
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 generalisations. 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

1. 1. No chapter wise weightage. Care to be taken to cover all the chapters.

1. 1. Suitable internal variations may be made for generating various templates. Choice:

• • There will be no overall choice in the question paper.

• • However, 33% internal choices will be given in all the sections.

CBSE Class 12 Chemistry Practical Question Paper 2023-24

Evaluation Scheme for Examination	Marks
Volumetric Analysis	08
Salt Analysis	08
Content Based Experiment	06
Project Work	04
Class record and viva	04
Total	30

Here’s a detailed practical syllabus of CBSE Class 12 Chemistry:Micro-chemical methods are available for several of the practical experiments. Wherever possible, such techniques should be used.

A. Surface Chemistry

(a) Preparation of one lyophilic and one lyophobic solLyophilic sol – starch, egg albumin and gumLyophobic sol – aluminium hydroxide, ferric hydroxide, arsenous sulphide.(b) Dialysis of sol-prepared in (a) above.(c) Study of the role of emulsifying agents in stabilizing the emulsion of different oils.

B. Chemical Kinetics

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

C. Thermochemistry

Any one of the following experimentsi) Enthalpy of dissolution of Copper Sulphate or Potassium Nitrate.ii) Enthalpy of neutralization of strong acid (HCI) and strong base (NaOH).iii) Determination of enthaply change during interaction (Hydrogen bond formation) between Acetone and Chloroform.

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. 1. i) Separation of pigments from extracts of leaves and flowers by paper chromatography and determination of Rf values.

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

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

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

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

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

i) Oxalic acid,ii) 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+, NH4+Anions: (CO3)2-, S2-, (SO3)2-, (NO2)-, (SO4)2-, Cℓ-, Br-, I-, PO3-4, (C2O4)2-, CH3COO-,NO3-(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 ripening.

• • Study of quantity of casein present in different samples of milk.

• • Preparation of soybean milk and its comparison with the natural milk with respect to curd formation, effect of temperature, etc.

• • Study of the effect of Potassium Bisulphate as food preservative under various conditions (temperature, concentration, time, etc.)

• • Study of digestion of starch by salivary amylase and effect of pH and temperature on it.

• • Comparative study of the rate of fermentation of following materials: wheat flour, gram flour, potato juice, carrot juice, etc.

• • 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.

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