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Class 12 Chemistry Syllabus 2022-23

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Class 12 Chemistry Syllabus 2022-23 PDF

CBSE Class 12 Chemistry Syllabus PDF 2022-23

Chemistry Class 12 Theory Syllabus 2022-23- Unit-wise

S.No. Title No. of Periods Marks
1 Solutions  15 7
2 Electrochemistry 18 9
3 Chemical Kinetics 15 7
4 d -and f -Block Elements  18 7
5 Coordination Compounds 18 7
6 Haloalkanes and Haloarenes 15 6
7 Alcohols, Phenols and Ethers 14 6
8 Aldehydes, Ketones and Carboxylic Acids 15 8
9 Amines 14 6
10 Biomolecules 18 7
Total 160 70

Unit II: 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 III: 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 IV: 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 VIII: 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 IX: 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 X: 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 XI: 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 XII: 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 XIII: Amines 

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

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 Practical Syllabus

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

CBSE Class 12 Chemistry Practical Syllabus 2022-23- Topicwise

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

A.Surface Chemistry

(a) Preparation of one lyophilic and one lyophobic sol
Lyophilic sol – starch, egg albumin and gum
Lyophobic 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 concentrations of Iodide ions.
(ii) Reaction between Potassium Iodate, (KIO3) and Sodium Sulphite: (Na2SO3)
using starch solution as an indicator (clock reaction).

C.Thermochemistry

Any one of the following experiments
(a) Enthalpy of dissolution of Copper Sulphate or Potassium Nitrate.
(b) Enthalpy of neutralization of strong acid (HCI) and strong base (NaOH).
(c) 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

(a) Separation of pigments from extracts of leaves and flowers by paper
chromatography and determination of Rf values.
(b) 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
i) Acetanilide ii) Di -benzal Acetone iii) p-Nitroacetanilide iv) Aniline yellow or 2 –
Naphthol Aniline dye.

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:

(a) Oxalic acid,
(b) Ferrous Ammonium Sulphate(Students will be required to prepare standard solutions by
weighing themselves)

K.Qualitative analysis

Determination of one anion and one cation in a given salt
Cation: 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-

(Note: Insoluble salts excluded)

INVESTIGATORY 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 the quantity of casein present in different samples of milk.
• Preparation of soybean milk and its comparison with natural milk with respect to curd
formation, the effect of temperature, etc.
• Study of the effect of Potassium Bisulphate as a 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 the 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.

 

General Guidelines for CBSE Chemistry Practical Examination 2023

• The practical examination will be of two hours duration.
• A separate list of ten experiments is included here.
• The written examination in practicals for these students will be conducted at the
time of the practical examination of all other students.
• The written test will be of 30 minutes duration.
• The question paper given to the students should be legibly typed. It should contain
a total of 15 practical skill-based very short answer type questions. A student would
be required to answer any 10 questions.
• A writer may be allowed to such students as per CBSE examination rules.
• All questions included in the question papers should be related to the listed
practical. Every question should require about two minutes to be answered.
• These students are also required to maintain a practical file. A student is expected
to record at least five of the listed experiments as per the specific instructions for
each subject. These practicals should be duly checked and signed by the internal
examiner.
• The format of writing any experiment in the practical file should include aim,
apparatus required, simple theory, procedure, related practical skills, precautions
etc.
• Questions may be generated jointly by the external/internal examiners and used
for assessment.
• The viva questions may include questions based on basic theory/principle/concept, apparatus/materials/ chemicals required, procedure, precautions, sources of error etc.

1. Items for Identification/Familiarity of the apparatus for assessment in practical
(All experiments)

Beaker, glass rod, tripod stand, wire gauze, Bunsen burner, Whatman filter paper,
gas jar, capillary tube, pestle and mortar, test tubes, tongs, test tube holder, test
tube stand, burette, pipette, conical flask, standard flask, clamp stand, funnel, filter
paper
Hands-on Assessment
• Identification/familiarity with the apparatus
• Odour detection in qualitative analysis

2. List of Practicals

The experiments have been divided into two sections:
Section A and Section B.
The experiments mentioned in Section B are mandatory.

SECTION- A
A . Surface Chemistry
1 Preparation of one lyophilic and one lyophobic sol – starch, egg albumin and gum
2 Preparation of one lyophobic sol– Ferric hydroxide
B .Chromatography
Separation of pigments from extracts of leaves and flowers by paper
chromatography and determination of Rf values (distance values may be provided).
C. Tests for the functional groups present in organic compounds:
(1) Alcoholic and Carboxylic groups.
(2) Aldehydic and Ketonic
D . Characteristic tests of carbohydrates and proteins in the given foodstuffs.
E. Preparation of Inorganic Compounds- Potash Alum

SECTION-B (Mandatory)

F. Quantitative analysis
(1) (a) Preparation of the standard solution of Oxalic acid of a given volume
(b) Determination of molarity of KMnO4 solution by titrating it against a
standard solution of Oxalic acid.
(2) The above exercise [F 1 (a) and (b)] to be conducted using Ferrous ammonium
sulphate (Mohr’s salt)
G. Qualitative analysis:
(1) Determination of one cation and one anion
in a given salt. Cation –NH4+
Anions – CO3²- , S²-, SO32-, Cl-, CH3COO-
(Note: Insoluble salts excluded)
Note: The above practical may be carried out in an experiential manner rather than
recording observations.

Question Paper Design Given in CBSE Class 12 Chemistry Syllabus 2022-23

S.No Domains Marks %  
1 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
2 Applying:

Solve problems to new situations by applying acquired knowledge, facts, techniques and rules in a different way.

21 30
3 Analyzing, 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, the 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

Prescribed Books for CBSE Class 12 Chemistry Syllabus 2023

1. Chemistry Part -I, Class-XII, Published by NCERT.
2. Chemistry Part -II, Class-XII, Published by NCERT.
3. Laboratory Manual of Chemistry, Class XI Published by NCERT
4. Other related books and manuals of NCERT including multimedia and online
sources

CBSE Class 12 Chemistry Syllabus 2022-23: FAQs

Q. Will CBSE conduct CBSE Class 12 Exam 2023 annually?
Yes, CBSE has recently announced that from the next session CBSE will conduct annual board exams.
Q. Where I can get CBSE Class 12 Chemistry Syllabus 2023?
You can get CBSE Class 12 Chemistry Syllabus 2023 from this page. To get the syllabus of other subjects the students can visit the official website of Adda247 School.

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