CBSE Class 11 Syllabus 2026-27

About CBSE Class 11 Exam

CBSE Class 11 is a critical academic year — it is the foundation for Class 12 board exams and competitive entrance exams like JEE and NEET. The Class 11 exam is conducted internally (school-level) with marks counting toward the student's internal record, though CBSE does provide the official syllabus.

Class 11 exam structure: Annual exam (typically March). Theory exam (70–80 marks) + Internal Assessment/Practical (20–30 marks). Minimum passing marks: 33% in theory and overall. Subjects offered: Students choose electives based on their stream — Science (PCM or PCB), Commerce (Accountancy, Business Studies, Economics) or Humanities/Arts.

Physics Syllabus (Class 11)

Unit 1 — Physical World and Measurement: Physics scope and excitement; physical laws; units of measurement; significant figures; errors in measurement; dimensional analysis.

Unit 2 — Kinematics: Frame of reference; motion in a straight line; speed and velocity; uniform acceleration; relative velocity; motion in a plane; projectile motion; circular motion.

Unit 3 — Laws of Motion: Newton's first, second and third laws; conservation of momentum; equilibrium of a particle; friction; dynamics of uniform circular motion.

Unit 4 — Work, Energy and Power: Work done by a constant and variable force; kinetic and potential energy; work-energy theorem; power; conservation of energy; elastic and inelastic collisions.

Unit 5 — Motion of System of Particles and Rigid Body: Centre of mass; momentum of rigid body; moment of inertia; theorems of parallel and perpendicular axes; rolling motion.

Unit 6 — Gravitation: Kepler's laws; universal law of gravitation; gravitational potential energy; escape velocity; orbital velocity; geostationary satellites.

Unit 7 — Properties of Bulk Matter: Elastic behaviour; stress-strain relationship; Hooke's law; Young's modulus; viscosity; Stokes' law; surface tension; Bernoulli's theorem.

Unit 8 — Thermodynamics: Thermal equilibrium; Zeroth, First and Second laws; heat capacity; Carnot engine; reversible/irreversible processes.

Unit 9 — Behaviour of Perfect Gas and Kinetic Theory: Equation of state; kinetic theory of an ideal gas; degrees of freedom; mean free path.

Unit 10 — Oscillations and Waves: Periodic motion; SHM; free, forced and damped oscillations; wave motion; speed of wave; superposition principle; Doppler effect.

Chemistry Syllabus (Class 11)

Unit 1 — Some Basic Concepts of Chemistry: Importance of chemistry; nature of matter; SI units; dimensional analysis; significant figures; atomic and molecular masses; mole concept; empirical and molecular formulae; chemical equations and stoichiometry.

Unit 2 — Structure of Atom: Discovery of electron, proton and neutron; atomic models (Thomson, Rutherford, Bohr); quantum mechanical model; orbitals; quantum numbers; Aufbau principle; Pauli exclusion principle; Hund's rule; electronic configuration.

Unit 3 — Classification of Elements and Periodicity: History of periodic table; modern periodic law; classification into blocks (s, p, d, f); periodic trends (ionisation enthalpy, electronegativity, atomic radius).

Unit 4 — Chemical Bonding and Molecular Structure: Ionic bond; covalent bond; VSEPR theory; valence bond theory; hybridisation; molecular orbital theory; hydrogen bonding.

Unit 5 — States of Matter: Gas laws; ideal gas equation; kinetic molecular theory; liquid state; vapour pressure.

Unit 6 — Thermodynamics: System, surroundings and boundary; first law of thermodynamics; enthalpy; heat capacity; Hess's law; entropy; Gibbs energy and spontaneity.

Unit 7 — Equilibrium: Equilibrium in physical processes; Le Chatelier's principle; ionic equilibrium; ionisation of acids and bases; pH; buffer solutions; solubility product.

Unit 8 — Redox Reactions: Oxidation and reduction; oxidation number; balancing redox equations; electrochemical cells (basics).

Unit 9 — Hydrogen: Position in periodic table; isotopes; properties; hydrides; water; hydrogen peroxide.

Unit 10 — s-Block Elements: Alkali and alkaline earth metals; electronic configuration; properties; uses.

Unit 11 — Some p-Block Elements: Groups 13 and 14; boron, aluminium, carbon, silicon — preparation, properties, uses.

Unit 12 — Organic Chemistry — Some Basic Principles: Tetravalency; classification of organic compounds; IUPAC nomenclature; structural isomerism; purification techniques; qualitative analysis.

Unit 13 — Hydrocarbons: Alkanes, alkenes, alkynes — nomenclature, preparation, properties; arenes; Hückel's rule.

Unit 14 — Environmental Chemistry: Environmental pollution; air, water and soil pollution; strategies to control pollution; green chemistry.

Mathematics Syllabus (Class 11)

Unit 1 — Sets and Functions: Sets; relations and functions; trigonometric functions — values of trig functions, identities, graphs.

Unit 2 — Algebra: Principle of mathematical induction; complex numbers; quadratic equations; linear inequalities; permutations and combinations; binomial theorem; sequences and series (AP and GP).

Unit 3 — Coordinate Geometry: Straight lines (slope, forms, intersection); circles; conic sections (parabola, ellipse, hyperbola); introduction to 3D geometry.

Unit 4 — Calculus: Limits (definition, standard results); derivatives (from first principles; product, quotient, chain rules; derivatives of polynomial, trig, log functions).

Unit 5 — Mathematical Reasoning: Statements; connectives; truth tables; contradiction; converse; contrapositive.

Unit 6 — Statistics and Probability: Measures of dispersion (mean deviation, variance, standard deviation); probability (random experiment, sample space, events; addition rule; conditional probability).

Biology Syllabus (Class 11)

Unit 1 — Diversity in the Living World: Taxonomy; binomial nomenclature; five kingdom classification; plant kingdom (algae, bryophytes, pteridophytes, gymnosperms, angiosperms); animal kingdom.

Unit 2 — Structural Organisation in Plants and Animals: Morphology of flowering plants; anatomy; animal tissues; structural organisation in animals (cockroach, earthworm, frog).

Unit 3 — Cell: Structure and Function: Cell theory; prokaryotic and eukaryotic cells; cell organelles (nucleus, mitochondria, chloroplast, ER, Golgi, ribosomes, lysosomes); cell cycle and cell division (mitosis, meiosis); biomolecules (carbohydrates, proteins, lipids, nucleic acids).

Unit 4 — Plant Physiology: Transport in plants; mineral nutrition; photosynthesis (light reactions, dark reactions/Calvin cycle); respiration; plant growth and development.

Unit 5 — Human Physiology: Digestion and absorption; breathing and exchange of gases; body fluids and circulation; excretory products; locomotion and movement; neural control and coordination; chemical coordination (hormones).

Accountancy and Business Studies Syllabus (Commerce, Class 11)

Accountancy Part 1 — Financial Accounting: Introduction to accounting; theory base; recording of transactions (journal, ledger, trial balance); special purpose books; bank reconciliation statement; depreciation; provisions and reserves; bills of exchange.

Accountancy Part 2 — Financial Accounting: Financial statements (trading account, profit and loss account, balance sheet); adjustments in financial statements; accounts from incomplete records; introduction to computers and accounting software.

Business Studies: Nature and purpose of business; forms of business organisation (sole proprietorship, partnership, company, cooperative); small business and entrepreneurship; business services; emerging modes of business; social responsibility of business; sources of business finance; small business finance; internal trade and international business.