CBSE Class 11 Chemistry Syllabus 2023-24
CBSE has released the Latest Updated Syllabus for the New Academic Session 2023-24 on March 31st, 2023, for class 11.
CBSE Board has released the latest Class 11 Chemistry syllabus which is to be strictly followed. Below please find our detailed analysis of Board Paper pattern, Unit-wise summary for the New Session 2023-24.
We have also updated Oswal Gurukul Books as per the Latest Paper Pattern prescribed by Board for each Subject Curriculum.
Students can directly access the CBSE Chemistry Syllabus for Class 11 of the academic year 2023-24 by clicking on the link below
PDF download links to the latest Class 11 Chemistry Syllabus for 2023-24 academic session
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- ▪ CBSE Class 11 Chemistry Syllabus 2023-24
- ▪ CBSE Class 11 Chemistry Latest Syllabus 2023-24
- ▪ CBSE Class 11 Chemistry Syllabus 2023-24: Unit-wise Summary
- ▪ Evaluation Scheme for Examination
- ▪ CBSE Class 11 Chemistry Question Paper Design 2023-24
- ▪ The Changes for Class 11 (2023-24) Year-end Board Examinations are as under:
- ▪ 2022-23 Reduced Syllabus
CBSE Class 11 Chemistry Latest Syllabus 2023-24
|S.No||Unit||No. of Periods||Marks|
|1||Some Basic Concepts of Chemistry||12||7|
|2||Structure of Atom||14||9|
|3||Classification of Elements and Periodicity in PropertiesBiology and Human Welfare||8||6|
|4||Chemical Bonding and Molecular Structure||14||7|
|8||Organic Chemistry: Some basic Principles and Techniques||14||11|
CBSE Class 11 Chemistry Syllabus 2023-24: Unit-wise Summary
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: 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 and 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, 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, brief history of the development of periodic table, modern periodic law and the present form of 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 bond, covalent bond, bond parameters, Lewis structure, polar character of covalent bond, covalent character of ionic bond, valence bond theory, resonance, 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 System and types of systems, surroundings, work, heat, energy, extensive and intensive properties, state functions.
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, 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 poly basic acids, acid strength, 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 hyper conjugation. 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
Alkanes - Nomenclature, isomerism, conformation (ethane only), physical properties, chemical reactions including free radical mechanism of halogenation, combustion and pyrolysis.
Alkenes - Nomenclature, 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, 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.
Introduction, IUPAC nomenclature, benzene: resonance, aromaticity, chemical properties: mechanism of electrophilic substitution. Nitration, sulphonation, halogenation, Friedel Craft's alkylation and acylation, directive influence of functional group in monosubstituted benzene. Carcinogenicity and toxicity.
Evaluation Scheme for Examination
|Evaluation Scheme for Examination||Marks|
|Content Based Experiment||06|
|Class record and viva||04|
CBSE Class 11 Chemistry Question Paper Design 2023-24
Remembering and Understanding:
Analysing, Evaluating and Creating:
The Changes for Class 11 (2023-24) Year-end Board Examinations are as under:
|Particulars||Academic Session 2022-23||Academic Session 2023-24|
|Composition of question paperyear-end examination/ Board Examination (Theory)||
2022-23 Reduced Syllabus
(for reference purposes only)
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