CBSE Class 11 Chemistry Syllabus 2023-24 | Class 11th Chemistry Syllabus

Here we provide the latest CBSE Class 11 Chemistry Syllabus 2023 24. You can also Download the new and revised CBSE Chemistry syllabus class 11 PDF. The present revised syllabus of class 11 Chemistry has been designed in accordance with National Curriculum.

Framework 2005.

Chemistry is a scoring subject but needs a lot of practice and conceptual understanding of the topics. CBSE Chemistry syllabus class 11 helps you in understanding the important topics. We advise you to read the CBSE class 11 Chemistry syllabus 2023 24 carefully. Class 11th Chemistry syllabus also helps you in the preparation for competitive exams like IIT, AIEEE etc.

Class 11 Chemistry Syllabus 2023- 24 – Course Structure

Before you read the Class 11th chemistry syllabus you have to understand the course structure to complete the chemistry syllabus of class 11

S.No.	Unit	Marks
1.	Some Basic Concepts of Chemistry	7
2.	Structure of Atom	9
3.	Classification of Elements and Periodicity in Properties	6
4.	Chemical Bonding and Molecular Structure	7
5.	Chemical Thermodynamics	9
6.	Equilibrium	7
7.	Redox Reactions	4
8.	Organic Chemistry: Some Basic Principles and Techniques	11
9.	Hydrocarbons	10
	Total Marks	70

CBSE Syllabus of Class 11 Chemistry 2023 24

The detailed and chapter-wise Chemistry Class 11 Syllabus 2023 24 is given below:

Unit I: Some Basic Concepts of Chemistry

General Introduction: Importance and scope of Chemistry.
Nature of matter, laws of chemical combination,
Dalton’s atomic theory: the concept of elements, atoms, and molecules.
Atomic and molecular masses, mole concept and molar mass, percentage composition, empirical and molecular formula, chemical reactions, stoichiometry, and calculations based on stoichiometry.

Unit II: Structure of Atom

Discovery of Electron, Proton, Neutron, atomic number, isotopes, and isobars.
Thomson’s model and its limitations.
Rutherford’s model and its limitations,
Bohr’s model and its limitations,
Concept of shells and subshells,
Dual nature of matter and light, de Broglie’s relationship,
The Heisenberg uncertainty principle,
Concept of orbitals, quantum numbers, shapes of s, p, and d orbitals,
Rules for filling electrons in orbitals – Aufbau principle, Pauli’s exclusion principle, and Hund’s rule,
Electronic configuration of atoms, stability of half-filled and completely filled orbitals.

Unit III: Classification of Elements and Periodicity in Properties

Significance of classification, a brief history of the development of the periodic table, modern periodic law, and the present form of the periodic table,
Periodic trends in properties of elements -atomic radii, ionic radii, inert gas radii, Ionization enthalpy, electron gain enthalpy, electronegativity, valency.
Nomenclature of elements with atomic number greater than 100.

Unit IV: Chemical Bonding and Molecular Structure

Valence electrons, ionic bonds, covalent bonds, bond parameters,
Lewis’s structure,
The polar character of the covalent bond,
The covalent character of ionic bonds,
Valence bond theory,
Resonance,
The geometry of covalent molecules,
VSEPR theory,
Concept of hybridization involving s, p, and d orbitals, and shapes of some simple molecules,
Molecular orbital theory of homonuclear diatomic molecules (qualitative idea only),
Hydrogen bond.

Unit VI: Chemical Thermodynamics

Concepts of Systems and types of systems, surroundings, work, heat, energy, extensive and intensive properties, and state functions.
The first law of thermodynamics -internal energy and enthalpy, heat capacity and specific heat, measurement of ΔU and ΔH, Hess’s law of constant heat summation,
Enthalpy of bond dissociation, combustion, formation, atomization, sublimation, phase transition, ionization, solution, and dilution.
Second law of Thermodynamics (brief introduction) Introduction of entropy as a state function,
Gibb’s energy change for spontaneous and non-spontaneous processes, criteria for equilibrium.
Third law of thermodynamics (brief introduction).

Unit VII: Equilibrium

Equilibrium in physical and chemical processes, dynamic nature of equilibrium, law of mass action, the equilibrium constant, Factors affecting equilibrium – Le Chatelier’s principle,
Ionic equilibrium- ionization of acids and bases,
Strong and weak electrolytes, degree of ionization,
Ionization of polybasic acids, acid strength, the concept of pH, hydrolysis of salts (elementary idea), buffer solution,
Henderson Equation, solubility product, common ion effect (with illustrative examples).

Unit VIII: Redox Reactions

Concept of oxidation and reduction,
Redox reactions, oxidation number,
Balancing redox reactions, in terms of loss and gain of electrons and change in oxidation number,
Applications of redox reactions.

Unit XII: Organic Chemistry -Some Basic Principles and Techniques

General introduction,
Methods of purification,
Qualitative and quantitative analysis,
Classification and IUPAC nomenclature of organic compounds.
Electronic displacements in a covalent bond: inductive effect, electromeric effect, resonance, and hyperconjugation.
Homolytic and heterolytic fission of a covalent bond: free radicals, carbocations, carbanions, electrophiles and nucleophiles, types of organic reactions.

Unit XIII: Hydrocarbons

Classification of Hydrocarbons

Aliphatic Hydrocarbons:

Alkanes – Nomenclature, isomerism, conformation (ethane only), physical properties, chemical reactions including free radical mechanism of halogenation, combustion, and pyrolysis.
Alkenes – Nomenclature, the structure of double bond (ethene), geometrical isomerism, physical properties, methods of preparation, chemical reactions: addition of hydrogen, halogen, water, hydrogen halides (Markovnikov’s addition and peroxide effect), ozonolysis, oxidation, mechanism of electrophilic addition.
Alkynes – Nomenclature, the structure of triple bond (ethyne), physical properties, methods of preparation, chemical reactions: acidic character of alkynes, addition reaction of – hydrogen, halogens, hydrogen halides, and water.

Aromatic Hydrocarbons:

Introduction,
IUPAC nomenclature,
Benzene: resonance, aromaticity,
Chemical properties: mechanism of electrophilic substitution.
Nitration,
Sulphonation,
Halogenation,
Friedel Craft’s alkylation and acylation,
Directive influence of the functional group in monosubstituted benzene.
Carcinogenicity and toxicity.

Practicals Marks for Class 11 Chemistry

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

Practical Syllabus for Class 11 Chemistry

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

A. Basic Laboratory Techniques

Cutting glass tube and glass rod
Bending a glass tube
Drawing out a glass jet
Boring a cork

B. Characterization and Purification of Chemical Substances

Determination of the melting point of an organic compound.
Determination of boiling point of an organic compound.
Crystallization of impure sample of any one of the following: Alum, Copper Sulphate, Benzoic Acid.

C. Experiments based on pH

Any one of the following experiments:

Determination of pH of some solutions obtained from fruit juices, solutions of known and varied concentrations of acids, bases, and salts using pH paper or universal indicator.
Comparing the pH of solutions of strong and weak acids of the same concentration. Study the pH change in the titration of a strong base using a universal indicator.

2. Study the pH change by common ion in the case of weak acids and weak bases.

D. Chemical Equilibrium One of the following experiments:

Study the shift in equilibrium between ferric ions and thiocyanate ions by increasing/decreasing the concentration of either of the ions.
Study the shift in equilibrium between [Co(H2O)6] 2+ and chloride ions by changing the concentration of either of the ions.

E. Quantitative Estimation

Using a mechanical balance/electronic balance.
Preparation of standard solution of Oxalic acid.
Determination of strength of a given solution of Sodium hydroxide by titrating it against a standard solution of Oxalic acid. Preparation of standard solution of Sodium carbonate.
Determination of strength of a given solution of hydrochloric acid by titrating it against standard Sodium Carbonate solution.

F. 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)
Detection of -Nitrogen, Sulphur, and Chlorine in organic compounds.

G. PROJECTS

Scientific investigations involve laboratory testing and collecting information from other sources.

A few suggested Projects:

Checking the bacterial contamination in drinking water by testing sulfide ion
Study of the methods of purification of water
Testing the hardness, presence of Iron, Fluoride, Chloride, etc., depending upon the regional variation in drinking water, and study of causes of the presence of these ions above the permissible limit (if any).
Investigation of the foaming capacity of different washing soaps and the effect of the addition of Sodium carbonate on it
Study the acidity of different samples of tea leaves.
Determination of the rate of evaporation of different liquids.
Study the effect of acids and bases on the tensile strength of fibres.
Study of acidity of fruit and vegetable juices.

Prescribe Books to Cover Class 11 Chemistry Syllabus

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

Click Here to Download Class 11 Chemistry NCERT Books.

Objectives of Class 11 Chemistry Syllabus CBSE

The curriculum of Chemistry at the Senior Secondary Stage aims to:

promote understanding of basic facts and concepts in chemistry while retaining the excitement of chemistry.
Make students capable of studying chemistry in academic and professional courses (such as medicine, engineering, and technology) at the tertiary level.
Expose the students to various emerging areas of chemistry and apprise them of their relevance in future studies and their application in different chemical sciences and technology spheres.
Equip students with various health, nutrition, environment, population, weather, industries and agriculture challenges.
Develop problem-solving skills in students.
Expose the students to industry processes and their technological applications.
apprise students of the interface of chemistry with other disciplines of science such as physics, biology, geology, engineering etc.
Acquaint students with different aspects of chemistry used in daily life.
Develop an interest in students to study chemistry as a discipline.
Integrate life skills and values in the context of chemistry

CBSE Class 11 Chemistry Syllabus 2023-24 | Class 11th Chemistry Syllabus