This Class 11 Chemistry Index page contains all the topics that fall under each chapter of the class 11 chemistry syllabus as per the NCERT textbook. Students may follow the links on the subtopics to access free study material on the associated concepts (prepared by chemistry subject experts for CBSE students). Furthermore, an overview of all the chapters and topics in the CBSE class 11 chemistry textbooks can also prove useful while crafting a preparation strategy for the CBSE board examination and other competitive examinations.
Class 11 Chemistry Chapters
1. Some Basic Concepts Of Chemistry
2. 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
- 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
- Hund’s rule
- Electronic configuration of atoms
- Stability of half-filled and completely filled orbitals
3. Classification of Elements and Periodicity
- Significance and 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
- Electrons gain enthalpy
- Electronegativity
- Valency
- Nomenclature of elements with atomic number greater than 100
4. 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
- S, p and d orbitals and shapes of some simple molecules
- Molecular orbital theory
- Hydrogen bond
5. States Of Matter
- Three states of matter
- Intermolecular interactions
- Types of bonding
- Melting and boiling points
- Role of gas laws in elucidating the concept of the molecule
- Boyle’s law
- Charles law
- Gay Lussac’s law
- Avogadro’s law
- Ideal behaviour
- Empirical derivation of gas equation
- Ideal gas equation
- Deviation from ideal behaviour
- Liquefaction of gases
- Critical temperature
- Kinetic energy and molecular speeds (elementary idea)
- Liquid State – vapour pressure
- Viscosity and surface tension
6. Thermodynamics
- Concepts of System and types of systems, surroundings, work, heat, energy
- Extensive and intensive properties
- State functions
- First law of thermodynamics
- Internal energy
- Enthalpy
- Heat capacity
- Specific heat
- Measurement of ∆U and ∆H
- 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
- State function
- Gibb’s energy change for spontaneous and non- spontaneous processes
- Criteria for equilibrium
- Third law of thermodynamics (brief introduction).
7. 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).
8. Redox Reactions
9. Hydrogen
10. The s -Block Elements
- Group 1 and Group 2 Elements General introduction
- Electronic configuration
- Occurrence, anomalous properties of the first element of each group, diagonal relationship, Trends in the variation of properties (such as ionization enthalpy, atomic and ionic radii)
- Trends in chemical reactivity with oxygen, water, hydrogen and halogens, uses.
Preparation and Properties of Some Important Compounds:
11. The p -Block Elements
- General Introduction to p -Block Elements
- Group 13 Elements:
- Boron – physical and chemical properties
Some important compounds:
- Borax, Boric acid, Boron Hydrides, Aluminium: Reactions with acids and alkalis,
- Group 14 Elements:
- Carbon-catenation
- Allotropic forms
- Physical and chemical properties
- Uses of some important compounds: Oxides
Important compounds of Silicon and a few uses
12. Organic Chemistry- Some Basic Principles And Techniques
- General introduction
- Methods of purification
- Qualitative analysis
- 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
13. 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, 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.
Aromatic Hydrocarbons:
- Introduction, IUPAC nomenclature, benzene: resonance, aromaticity, chemical properties: mechanism of electrophilic substitution. Nitration, sulphonation, halogenation, Friedel Crafts alkylation and acylation, directive influence of functional group in monosubstituted benzene. Carcinogenicity and toxicity.
14. Environmental Chemistry
- Environmental pollution – air, water and soil pollution, chemical reactions in atmosphere, smog, major atmospheric pollutants, acid rain, ozone and its reactions, effects of depletion of ozone layer, greenhouse effect and global warming – pollution due to industrial wastes, green chemistry as an alternative tool for reducing pollution, strategies for control of environmental pollution.
The complete list of chapters and subtopics of the Class 11 NCERT textbook has been provided above. This page can help provide context and structure for learning the fundamental principles covered under the Class 11 CBSE chemistry syllabus, thereby empowering the students to develop from simple to relatively complex concepts in a systematic manner. The list of chapters and subtopics given above has been prepared in accordance with the current CBSE syllabus for class 11 chemistry. The content provided in the respective sub-topics has been designed by our expert chemistry professors for the benefit of all students. Click the links listed under each chapter to read more about all Class 11 topics in depth.
Chemistry is the science that tries to understand the properties of substances and the changes that substances undergo. Class 11 Chemistry concepts deal with the understanding of basic constituents of matter, atoms and molecules. Students must study these principles in detail in order to improve their expertise in the subject and to establish a strong foundation.
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