ISC Class 11 Chemistry Syllabus

ISC Class 11 Chemistry Syllabus

ISC Class 11 Chemistry Syllabus is available for the students on the Extramarks website!

The ISC Chemistry Class 11 plays a vital role in preparing students for higher education and the academic year exam preparation. Therefore, students should know the syllabus right at the beginning of the academic session. To ensure that students get access to all the study materials on time, the ISC Class 11 Chemistry Syllabus has been shared along with the distribution of marks and examination pattern for the subject.

There are a total of 17 units in ISC Class 11 Chemistry Syllabus. Students will learn about the basic concepts of chemistry, the structure of atoms, and chemical bonding in Class 11. The syllabus includes some crucial concepts such as environmental chemistry, organic chemistry, classification of elements, and molecular structure. 

Students must check the Extramarks website regularly for the latest ICSE Class 11 Chemistry Syllabus updates. Further, they can visit our website for ISC & ICSE Syllabus for all subjects, sample papers and ICSE solutions. 

ISC Class 11 Chemistry Syllabus 2023-24 – Semester (1 & 2)

ISC Class 11 Chemistry Syllabus has divided the introduction into three sections, including Section A, Section B, and Section C. In the beginning, the students will get an introduction to basic chemistry. Further, they will get to learn complex concepts and theories. Such complex theories include Bohr’s atomic model and Rutherford’s nuclear model. 

The below table offers the Class 11 Chemistry Syllabus and the Units under each section:

Sections  Units
Section A  1. Some Basic Concepts of Chemistry
2. Atomic Structure
3. Periodic Table
4. Chemical Bonding
5. The Gaseous State
6. Surface Chemistry
7. Chemical Kinetics
8. Chemical Energetics
Section B  9. Study of Representative Elements: Group 1, 2, 13, 14, 15
10. Preparation, properties, and uses of Compounds of Groups 1, 2, 13, 14, 15
11. Redox Reactions
Section C 12. Introduction to Organic Chemistry
13. Isomerism
14. Types of Chemical Reactions and their Mechanisms
15. Aliphatic and Aromatic Hydrocarbons
16. Applications of Chemicals
17. Environmental Chemistry

Students may click on the respective topic under the ISC Class 11 Chemistry Syllabus to access the study material offered by Extramarks.

A brief of the ISC Class 11 Chemistry Syllabus is as under. 

ISC Class 11 Chemistry Syllabus Section A: 

  1. Some Basic Concepts of Chemistry
  • Precision and Accuracy
  • Dimensional Analysis
  • Atomic and Isotopic masses
  • The concept of atoms having fixed properties in the laws of chemical combination. 
  • Relative molecular mass and mole.
  • Chemical reactions on mass-mass, mass-volume, and volume-volume relationships. 
  1. Atomic Structure
  • Fundamental particles such as Electrons, Protons, and Neutrons
  • Rutherford’s nuclear model is based on the scattering experiment
  • Bohr’s atomic model
  • Hund’s rule of maximum multiplicity and nuclear structure. 
  1. Periodic Table
  • Atomic number as the basis for classification of the elements in the Periodic Table. 
  • Periodicity of elements.
  • The nuclear structure is the basis of periodicity. Ionization enthalpy, electron gain enthalpy, atomic volume, and electronegativity. 
  1. Chemical Bonding
  • Electrovalent Bond
  • Covalent Bond
  1. The Gaseous State
  • Kinetic theory, gas laws and equation of state
  • Non-ideal behaviour of gases and van der Waal’s equation
  • Dalton’s law, Avogadro’s constant, the mole, Graham’s law of diffusion. 
  1. Surface Chemistry
  • Adsorption
  • Colloidal state
  • Chromatography
  1. Chemical Kinetics
  • Rate of a chemical reaction
  • The basic idea of order
  • Molecularity of a reaction
  1. Chemical Energetics
  • The first law of Thermodynamics
  • The second law of thermodynamics
  • Third law of thermodynamics
  • Thermochemistry

ISC Class 11 Chemistry Syllabus Section B: 

  1. Study of Elements: Group 1, 2, 13, 14, 15
  • Occurrence, Physical State, Electronic Configuration, Atomic and Ionic radii. 
  • Common oxidation state, IonisationIonization enthalpy, and Distinctive behaviour of the first member of each group. 
  • Nature of oxides, hydroxides, and chlorides. 
  1. Preparation and uses of Compounds of respective Groups 1, 2, 13, 14, 15
  • Chemistry preparation, chemical properties, and benefits of the given compound. 
  • Biological importance of magnesium, sodium, calcium.
  1. Redox Reactions
  • Examples of Redox Reactions
  • Oxidation numbers, rules, and simple calculations of oxidation state
  • Balancing of redox reactions in the acidic and basic medium by oxidation number. 

ISC Class 11 Chemistry Syllabus Section C: 

  1. Introduction to Organic Chemistry
  • Nature of a carbon atom and catenation
  • Classification of an organic compound and homologous series
  • Estimation of carbon, hydrogen, nitrogen, and halogens. 
  1. Isomerism
  • Structural Isomerism: Definition, classification of isomerism.
  • Stereo Isomerism: Definition of geometric isomerism. 
  1. Types of Chemical Reactions 
  • Substitution, addition, and elimination reactions
  • Electrophiles and nucleophiles
  • Inductive electromeric effects and hyperconjugation
  • Free radicals and polar mechanisms. 
  1. Aliphatic and Aromatic Hydrocarbons
  • Alkanes: General methods of preparation and properties of alkanes. 
  • Alkenes: Preparation and properties of alkenes.
  • Alkynes: Methods of preparation and uses of ethyne.
  • Benzene: Coal tar as an essential source of the aromatic compound; properties and uses of benzene; resonance mode of benzene
  1. Applications of Chemicals
  • Medicine: Antipyretics, analgesics, tranquilisers, antiseptics, disinfectants, and antacids. 
  • Soaps and Detergents: Classification, structure, properties of soap and detergent. 
  1. Environmental Chemistry
  • Environmental pollution, atmospheric pollution, water pollution. 
  • Energy: Non-renewable and renewable energy such as diesel, petrol, LPG, and CNG. Future energy sources such as hydrogen, alcohol, fuel cells, and biofuels. 

ISC Class 11 Chemistry Paper Pattern

Students can refer to the latest ISC Class 11 Chemistry Syllabus on Extramarks. As the exams approach, it is essential to revise all the concepts and definitions. One paper of three hours duration is divided into two parts. 

Part 1 (20 Marks) is a compulsory section where the student has to attempt short answer questions. This section will test their knowledge, application, skills relating to elementary/fundamental aspects of chemistry. 

Part 2 (50 Marks) is divided into three subsections A, B, and C. The students can answer two out of three questions in Section A (each carries ten marks). In Section B, they can attempt two out of three questions, each carrying five marks. Further, in Section C, two of three questions each carry ten marks. Thus, there are a  total of six questions in part 2. It is essential to practice before the first-term exam. The student may refer to ISC Chemistry Class 11 Syllabus for more information. 

Students may access the below study material on Extramarks to help them prepare for the examination.

ICSE Important Questions 

ICSE Question Papers

ICSE Revision Notes

ICSE Sample Question Paper

ISC Class 11 Chemistry Syllabus & Study Materials 2023-24 

Students can refer to ISC Class 11 Mathematics Syllabus & Material on the Extramarks website. They can start their preparation for the first-term and competitive entrance exam. Further, the students will get an introduction to basic concepts of chemistry and organic chemistry in the syllabus. They will also witness some essential concepts such as the structure of atoms, the classification of elements, and chemical bonding. 

A detailed explanation of every topic has been provided. Various principles usually appear in the exam, such as Mendeleev’s periodic law, Pauli’s exclusion principle, and Hund’s rule of maximum multiplicity. Such complex principles are well elaborated for the student to understand better and remember. In addition, they can refer to sample question papers, revision notes, and ICSE question papers of the past year. 

The students can regularly visit the Extramarks website and check the latest update on ICSE Solutions and ISC & ICSE Syllabus. 

ISC Chemistry Class 11 Syllabus

Theory paper is of 3 hours duration and 70 marks. There are 14 units in the syllabus.

1. Some Basic Concepts of Chemistry

General introduction: Importance and scope of chemistry.

Study of matter. Understanding laws of chemical combination. Dalton’s atomic theory: concept of elements, atoms and molecules.

Isotopic (atomic) and molecular masses, mole concept and molar mass, percentage composition, empirical and molecular formula. Stoichiometry and calculations based on chemical reactions.

2. Structure of Atom

Discovery of fundamental particles electron, proton and neutron), atomic number, isotopes and isobars. Thomson’s model and its limitations. Rutherford’s experimental model and its limitations. Dual nature of matter and light. Bohr’s atomic model and its limitations (de Broglie’s equation, Heisenberg’s uncertainty principle), concept of shells, subshells, 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 of maximum multiplicity. Electronic configuration of atoms, stability of half- filled and completely filled orbitals.

3. Classification of Elements and Periodicity in Properties

Significance of classification; study of Mendeleev’s periodic law and its limitations; Modern Periodic Law and the present form of periodic table leading to periodic trends in properties of elements – atomic radii, ionic radii, valency, ionisation enthalpy, electron gain enthalpy, electronegativity. Nomenclature of elements with atomic number greater than 100.

4. Chemical Bonding and Molecular Structure

Valence electrons, ionic bond character, covalent bond of ionic bond, covalent bond, bond parameters, lewis structure, polar character of covalent bond, VSEPR theory, geometry of covalent molecules, valence bond theory, concept of hybridisation involving s, p and d orbitals and shapes of some simple molecules.

Coordinate bond. Molecular orbital theory of homonuclear diatomic molecules (qualitative idea only). Resonance and hydrogen bond.

5. States of Matter: Gases and Liquids

States of matter and their characteristic properties to establish the concept of the molecule. Boyle’s law, Charles law, Gay Lussac’s law, Avogadro’s law, Avogadro’s number, ideal behaviour of gases and derivation of ideal gas equation. Kinetic Theory of gases, kinetic energy and molecular speeds (elementary idea).

Deviation from ideal behaviour, van der Waal’s equation, liquefaction of gases, critical temperature. Liquid state – vapour pressure, viscosity and surface tension (qualitative idea only, no mathematical derivations).

6. Chemical Thermodynamics

(i) Introduction, concepts, types of system, surroundings, extensive, intensive properties and state functions.

(ii) First Law of Thermodynamics and its significance, work, heat, internal energy, enthalpy (∆U or ∆E and ∆H), heat capacity and specific heat. Hess’s law of constant heat summation, enthalpy of bond dissociation, combustion, formation, atomisation, sublimation, phase transition, ionisation, solution and dilution.

(iii) Second Law of Thermodynamics and its significance, spontaneity of a chemical change; Entropy, Free Energy. Inadequacy of First Law and need for Second Law; Ideas about reversible (recapitulation), spontaneous and non-spontaneous processes.

(iv) Third Law of Thermodynamics – statement only.

7. Equilibrium

(i) Chemical Equilibrium

Introduction of physical and chemical equilibrium and its characteristics

Dynamic nature of equilibrium, law of mass action, equilibrium constant and factors affecting equilibrium. Le Chatelier’s principle and its applications.

(ii) Ionic equilibrium

Introduction, electrolyte (strong and weak), non-electrolyte, ionisation, degree of ionisation of polybasic acids, acid strength, concept of pH, pH indicators, buffer solution, common ion effect (with illustrative examples). Henderson equation, hydrolysis of salts, solubility and solubility product.

8. Redox Reactions

Concept of oxidation and reduction, redox reactions, oxidation number, change in oxidation number, balancing redox reactions (in terms of loss and gain of electrons). Applications of redox in various types of chemical reactions.

9. Hydrogen

Hydrogen and its compounds: hydrides, water, heavy water, hydrogen peroxide.

10. s-Block Elements

(Alkali and Alkaline Earth Metals)

(i) Group 1 and 2 elements

(ii) Preparation and properties of some important compounds.

11. Some p-Block Elements

(i) Group 13 Elements

(ii) Preparation and properties of some important compounds, borax, boric acid, boron hydrides, aluminium: Reactions with acids and alkalies. Lewis acid character of boron halides; amphoteric nature of aluminium, alums.

(iii) Group 14 Elements

(iv) Some important compounds; oxides of carbon and silicon, silicon carbide, silicon tetra chloride, silicones, silicates and zeolites.

12. Organic Chemistry – Some Basic Principles and Techniques

General introduction, classification and IUPAC nomenclature of organic compounds and isomerism.

Methods of purification, qualitative and quantitative analysis. Electron displacement in a covalent bond: inductive effect, electromeric effect, resonance and hyperconjugation.

Homolytic and heterolytic bond fission of a covalent bond: free radicals, carbocations, carbanions, electrophiles and nucleophiles, types of organic reactions.

13. Hydrocarbons

Classification of Hydrocarbons

I. Aliphatic Hydrocarbons

(i) Alkanes – Nomenclature, isomerism, conformation (methane and ethane), physical properties, chemical properties including free radical mechanism of halogenation, combustion and pyrolysis.

(ii) Alkenes – Nomenclature, structure of double bond (ethene), isomerism; methods of preparation; physical properties, chemical properties; addition of hydrogen, halogen, water, hydrogen halides (Markownikoff’s addition and peroxide effect), ozonolysis, oxidation, mechanism of electrophilic addition.

(iii) Alkynes – Nomenclature, structure of triple bond (ethyne), methods of preparation; physical properties,  chemical properties: acidic character of alkynes, addition reactions – hydrogen, halogens, hydrogen halides and water.

II. 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

Types of environmental pollution (air, water and soil pollution); various types of pollutants: smog, acid rain; 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.

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FAQs (Frequently Asked Questions)

1. How many sections are present in ISC Class 11 Chemistry Syllabus?

There are three sections in ISC Class 11 Chemistry Syllabus, namely Section A, Section B, Section C. The students learn basic concepts of chemistry, organic chemistry, and environmental chemistry. 

2. What are the benefits of studying from ISC Class 11 Chemistry Syllabus?

The students get to learn physical chemistry, inorganic chemistry, and organic chemistry. The ISC Class 11 Chemistry Syllabus has a detailed explanation of the complex concepts and theories. Further, the students can benefit from the ICSE solutions for better preparation. 

3. How to prepare for the first-term ISC board exam?

Students can refer to ISC Class 11 Chemistry Syllabus on the Extramarks website. It is available for the students with easily accessible links. The syllabus covers all essential topics and subtopics that appear in the first-term ISC board exam.