JKBOSE Class 11 Chemistry Syllabus 2026-27: Units, Chapters, Marks & Practicals

Particular

Details

Board

Jammu and Kashmir Board of School Education (JKBOSE)

Class

11th

Subject

Chemistry

Academic Year

2026-27

Maximum Marks

100

Theory

70 Marks

Practicals

30 Marks

Exam Duration

3 Hours

Total Units

9

Prescribed Book

A Textbook of Chemistry for Class XI, NCERT

Unit

Chapter

Marks

Unit I

Some Basic Concepts of Chemistry

7

Unit II

Structure of Atom

9

Unit III

Classification of Elements and Periodicity in Properties

6

Unit IV

Chemical Bonding and Molecular Structure

7

Unit V

Thermodynamics

9

Unit VI

Equilibrium

7

Unit VII

Redox Reactions

4

Unit VIII

Organic Chemistry – Basic Principles and Techniques

11

Unit IX

Hydrocarbons

10

Total

Theory

70

Chemistry Syllabus Page

Unit I: Some Basic Concepts of Chemistry

Unit II: Structure of Atom

Unit III: Classification of Elements and Periodicity in Properties

Unit IV: Chemical Bonding and Molecular Structure

Unit V: Thermodynamics

Unit VI: Equilibrium

Unit VII: Redox Reactions

Unit VIII: Organic Chemistry – Basic Principles and Techniques

Unit IX: Hydrocarbons

Alkanes

Alkenes

Alkynes

Aromatic hydrocarbons

Unit

Topics Covered

Unit I – Some Basic Concepts of Chemistry

General Introduction to Chemistry, Importance of studying Chemistry, Particulate nature of matter, Laws of chemical combination, Dalton's Atomic Theory, Elements, atoms and molecules, Atomic and molecular masses, Mole concept and molar mass, Percentage composition, Empirical and molecular formula, Chemical reactions, Stoichiometry, 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, Shells and sub-shells, Dual nature of matter and light, de Broglie's relationship, Heisenberg's uncertainty principle, Concept of orbitals, Quantum numbers, Shapes of s, p and d orbitals, Aufbau's principle, Pauli's exclusion principle, Hund's rule, Electronic configuration of atoms, Stability of half-filled and filled orbitals

Unit III – Classification of Elements and Periodicity in Properties

Significance of classification, History of the development of the periodic table, Modern periodic law, Present form of the periodic table, Atomic radii, Ionic radii, Inert gas radii, Ionisation enthalpy, Electron gain enthalpy, Electronegativity, Valency, Periodic trends in properties of elements

Unit IV – Chemical Bonding and Molecular Structure

Valence electrons, Ionic bond, Covalent bond, Bond parameters, Lewis structures, Polar character of covalent bonds, Valence bond theory, Resonance, Geometry of covalent molecules, VSEPR theory, Hybridisation involving s, p and d orbitals, Shapes of simple molecules, Molecular orbital theory of homonuclear molecules, Hydrogen bonding

Unit V – Thermodynamics

System and surroundings, Types of systems, Work and heat, Intensive and extensive properties, State functions, First Law of Thermodynamics, Internal energy, Enthalpy, Heat capacity, Specific heat, Molar heat capacity, Measurement of ΔE and ΔH, Hess's law of constant heat summation, Enthalpy of bond dissociation, Enthalpy of combustion, Enthalpy of formation, Enthalpy of atomization, Enthalpy of sublimation, Enthalpy of phase transition, Enthalpy of ionization, Enthalpy of dilution, Entropy as a state function, Free energy change, Spontaneous and non-spontaneous processes, Criteria for equilibrium

Unit VI – 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, Ionisation of acids and bases, Strong and weak electrolytes, Degree of ionisation, Concept of pH, Hydrolysis of salts, Buffer solutions, Solubility product, Common ion effect

Unit VII – Redox Reactions

Oxidation and reduction, Redox reactions, Oxidation number, Balancing of redox chemical equations, Applications of redox reactions

Unit VIII – Organic Chemistry: Basic Principles and Techniques

General introduction to organic chemistry, Methods of purification, Qualitative analysis, Quantitative analysis, Classification of organic compounds, IUPAC nomenclature, Inductive effect, Electromeric effect, Resonance, Hyperconjugation, Homolytic and heterolytic fission, Free radicals, Electrophiles, Nucleophiles, Carbocations, Carbanions, Types of organic reactions

Unit IX – Hydrocarbons

Alkanes: Nomenclature, Isomerism, Conformations of ethane, Physical properties, Halogenation, Combustion, Pyrolysis, Free radical mechanism of halogenation. Alkenes: Nomenclature, Structure of double bond, Structure of ethene, Geometrical isomerism, Methods of preparation, Physical properties, Addition reactions, Addition of hydrogen, Addition of halogens, Addition of water, Addition of hydrogen halides, Markovnikov's addition, Peroxide effect, Ozonolysis, Oxidation, Electrophilic addition mechanism. Alkynes: Nomenclature, Structure of triple bond, Structure of ethyne, Physical properties, Methods of preparation, Acidic character of alkynes, Addition of hydrogen, Addition of halogens, Addition of hydrogen halides, Addition of water. Aromatic Hydrocarbons: Introduction to aromatic hydrocarbons, IUPAC nomenclature, Benzene structure and resonance, Aromaticity, Chemical properties, Electrophilic substitution, Nitration, Sulphonation, Halogenation, Friedel-Crafts alkylation, Friedel-Crafts acylation, Directive influence of functional groups in monosubstituted benzene

Section

Question Type

Questions

Marks

Section A

Objective Type/MCQs

10

10

Section B

Very Short Answer Type

9

18

Section C

Short Answer Type

9

27

Section D

Long Answer Type

3

15

Total

—

—

70

Practical Component

Marks

External

20

Internal

10

Total

30