📘 Dev Classes | Class 11th Chemistry | CBSE Board | Session 2025-26

Chemistry for Class 11th is divided into Physical Chemistry, Inorganic Chemistry, and Organic Chemistry. This syllabus will build a strong foundation for your board exams and competitive exams like JEE/NEET.

📖 Detailed Syllabus

🔬 Unit I: Some Basic Concepts of Chemistry

• Importance and scope of Chemistry

• Laws of chemical combination

• Dalton’s atomic theory

• Atomic and molecular masses, mole concept, molar mass

• Percentage composition, empirical and molecular formulae

• Stoichiometry and stoichiometric calculations

🧪 Unit II: Structure of Atom

• Discovery of subatomic particles (electron, proton, neutron)

• Thomson’s and Rutherford’s atomic models

• Bohr’s model and its limitations

• Dual nature of matter and radiation

• de Broglie’s relation, Heisenberg uncertainty principle

• Quantum mechanical model of atom: orbitals, quantum numbers, shapes of s, p, and d orbitals

• Aufbau principle, Pauli exclusion principle, Hund’s rule

⚛️ Unit III: Classification of Elements and Periodicity in Properties

• Modern periodic law and long form of periodic table

• Periodic trends: atomic radius, ionization enthalpy, electron gain enthalpy, electronegativity, valency

🔗 Unit IV: Chemical Bonding and Molecular Structure

• Ionic bond, covalent bond, coordinate bond

• Bond parameters: bond length, bond angle, bond enthalpy

• VSEPR theory and shapes of simple molecules

• Valence bond theory (VBT)

• Hybridization: sp, sp², sp³, sp³d, sp³d²

• Molecular orbital theory (qualitative idea)

• Hydrogen bonding

🧪 Unit V: States of Matter – Gases and Liquids

• Three states of matter

• Gas laws: Boyle’s law, Charles’s law, Gay Lussac’s law, Avogadro’s law

• Ideal gas equation

• Dalton’s law of partial pressure

• Kinetic theory of gases

• Real gases and deviation from ideal behaviour, van der Waals equation

• Liquefaction of gases, critical temperature, surface tension, viscosity

🌡️ Unit VI: Thermodynamics

• System and surroundings, types of systems

• Extensive and intensive properties

• First law of thermodynamics, internal energy, work and heat

• Enthalpy, enthalpy change for various processes

• Hess’s law of constant heat summation

• Spontaneity: Gibbs free energy

• Second law of thermodynamics

⚖️ Unit VII: Equilibrium

• Equilibrium in physical and chemical processes

• Law of mass action, equilibrium constant

• Le Chatelier’s principle

• Ionic equilibrium: ionization of acids and bases, pH scale, buffer solutions

• Solubility product, common ion effect

🔋 Unit VIII: Redox Reactions

• Concept of oxidation and reduction

• Redox reactions, oxidation number

• Balancing redox reactions

• Applications of redox reactions

⚗️ Unit IX: Hydrogen

• Position of hydrogen in the periodic table

• Isotopes of hydrogen

• Preparation, properties, and uses of hydrogen

• Hydrides: ionic, covalent, and interstitial

• Water: structure, physical and chemical properties

• Hydrogen peroxide: preparation, properties, structure, and uses

🧩 Unit X: s-Block Elements (Alkali and Alkaline Earth Metals)

• Group 1 elements: electronic configuration, general characteristics, properties, and uses

• Group 2 elements: same aspects

• General trends in the properties of compounds like oxides, hydroxides, carbonates, and salts

💎 Unit XI: Some p-Block Elements

• General introduction to p-block elements

• Group 13 elements (Boron family): properties, uses, borax, boric acid, diborane

• Group 14 elements (Carbon family): allotropes of carbon, important compounds like CO₂, silicon and its compounds

🧬 Unit XII: Organic Chemistry – Some Basic Principles and Techniques

• General introduction and classification of organic compounds

• IUPAC nomenclature

• Isomerism

• Electronic effects: inductive, resonance, hyperconjugation

• Types of organic reactions: substitution, addition, elimination, rearrangement

• Purification and qualitative analysis of organic compounds

🧪 Unit XIII: Hydrocarbons

• Alkanes: preparation, properties, and reactions

• Alkenes: preparation, properties, Markovnikov’s rule, peroxide effect

• Alkynes: preparation and properties

• Aromatic hydrocarbons: benzene – structure, aromaticity, electrophilic substitution reactions

🌿 Unit XIV: Environmental Chemistry

• Environmental pollution: air, water, soil

• Greenhouse effect and global warming

• Acid rain, ozone depletion

• Green chemistry as an alternative tool for pollution control

🧪 Practical Work (Experiments & Activities)

Includes:

• Basic laboratory techniques

• Preparation of solutions and crystals

• Qualitative analysis: detection of elements like nitrogen, sulphur, halogens

• Identification of functional groups

• Volumetric analysis

• Chemical equilibrium experiments

✅ Note:
At Dev Classes, each topic is taught with:

• NCERT theory & solved examples

• Reaction mechanisms, derivations, and numerical problems

• Regular practice worksheets & tests

• Doubt-solving classes & personalized guidance

Start your journey to mastering Class 11th Chemistry with Dev Classes — your success starts here! 🧪✨