Academic Session 2026-27

Tamil Nadu Board Class 11 Science Syllabus 2026-27

Complete TNBSE Class 11 Physics, Chemistry & Biology Syllabus

Physics • Chemistry • Biology/Mathematics • English • Tamil
Detailed subject-wise curriculum for Science stream as per TNBSE guidelines.

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6 Subjects PCM & PCB Options Tamil & English Medium Updated Syllabus

Physics Chemistry Biology Mathematics English Tamil

Physics Syllabus 2026-27

Tamil Nadu Board Class 11 Physics syllabus covers fundamental concepts of mechanics, thermodynamics, waves, optics, and modern physics. Students develop analytical skills essential for engineering and research.

Unit	Topics	Marks
Mechanics	Physical World and Measurement - Units, Dimensions, Errors Motion in a Straight Line - Kinematics Motion in a Plane - Vectors, Projectile Motion Laws of Motion - Newton's Laws, Friction, Circular Motion Work, Energy and Power - Work-Energy Theorem, Conservation Laws System of Particles and Rotational Motion - Centre of Mass, Torque Gravitation - Universal Law, Kepler's Laws, Satellite Motion	25
Thermodynamics	Thermal Properties of Matter - Heat, Temperature, Expansion Thermodynamics - Laws, Processes, Heat Engines Kinetic Theory of Gases - Gas Laws, Molecular Theory Calorimetry and Heat Transfer - Conduction, Convection, Radiation	15
Waves & Oscillations	Oscillations - SHM, Simple Pendulum, Damped Oscillations Waves - Wave Motion, Sound Waves, Doppler Effect Properties of Waves - Reflection, Refraction, Interference Stationary Waves and Beats	15
Optics	Ray Optics - Reflection, Refraction, Lenses, Prism Wave Optics - Interference, Diffraction, Polarization Optical Instruments - Microscope, Telescope	12
Modern Physics	Dual Nature of Matter and Radiation - Photoelectric Effect Atoms - Bohr Model, Atomic Spectra Nuclei - Radioactivity, Nuclear Reactions, Fission & Fusion Electronic Devices - Semiconductors, Diodes, Transistors Communication Systems - Basics of Communication	13
Internal Assessment	Practical work, periodic tests, notebook submission, project work	20

Note: Physics syllabus emphasizes conceptual understanding and numerical problem-solving. Students are required to perform practical experiments in the laboratory.

Chemistry Syllabus 2026-27

Tamil Nadu Board Class 11 Chemistry syllabus covers physical, organic, and inorganic chemistry with emphasis on chemical reactions, molecular structure, and material science.

Unit	Topics	Marks
Physical Chemistry	Some Basic Concepts of Chemistry - Mole Concept, Stoichiometry Structure of Atom - Quantum Model, Electronic Configuration Classification of Elements - Periodic Table, Periodicity Chemical Bonding - Ionic, Covalent, VSEPR Theory States of Matter - Gases, Liquids, Solids Thermodynamics - Laws, Enthalpy, Entropy Equilibrium - Chemical & Ionic Equilibrium Redox Reactions - Balancing, Applications	25
Inorganic Chemistry	s-Block Elements - Alkali & Alkaline Earth Metals p-Block Elements - Group 13, 14, 15, 16, 17, 18 Hydrogen - Properties, Hydrides, Water Coordination Compounds - Nomenclature, Isomerism	20
Organic Chemistry	General Organic Chemistry - IUPAC Nomenclature Isomerism - Structural, Stereoisomerism Hydrocarbons - Alkanes, Alkenes, Alkynes, Aromatic Haloalkanes and Haloarenes - Properties, Reactions Alcohols, Phenols and Ethers - Preparation, Properties Aldehydes, Ketones and Carboxylic Acids - Reactions Amines - Classification, Properties, Reactions Biomolecules - Carbohydrates, Proteins, Nucleic Acids	25
Environmental Chemistry	Environmental Pollution - Air, Water, Soil Green Chemistry - Principles and Applications Waste Management - Recycling, Biodegradation	10
Internal Assessment	Practical work, periodic tests, notebook submission, project work	20

Practical Work: Students must complete all prescribed practical experiments, maintain a practical record book, and perform qualitative and quantitative analysis.

Biology Syllabus 2026-27

Tamil Nadu Board Class 11 Biology syllabus covers life sciences including plant physiology, animal physiology, genetics, and ecology. Students build a strong foundation for medical careers.

Unit	Topics	Marks
Plant Physiology	Plant Transport - Water and Mineral Uptake Photosynthesis in Higher Plants - Light Reaction, Calvin Cycle Respiration in Plants - Glycolysis, Kreb's Cycle Plant Growth and Development - Hormones, Photoperiodism Mineral Nutrition - Essential Elements, Deficiency Symptoms	20
Animal Physiology	Digestion and Absorption - Human Digestive System Breathing and Exchange of Gases - Respiratory System Body Fluids and Circulation - Blood, Heart, Lymph Excretory Products and their Elimination - Urine Formation Locomotion and Movement - Muscle Contraction, Bones Neural Control and Coordination - Nervous System Chemical Coordination and Integration - Endocrine System	25
Genetics & Evolution	Principles of Inheritance - Mendelian Genetics Molecular Basis of Inheritance - DNA, RNA, Replication Evolution - Origin of Life, Natural Selection Genetic Disorders - Chromosomal and Gene Disorders	15
Ecology & Environment	Organisms and Populations - Abiotic and Biotic Factors Ecosystem - Structure, Function, Energy Flow Biodiversity and Conservation - Levels, Importance Environmental Issues - Pollution, Climate Change	20
Internal Assessment	Practical work, periodic tests, notebook submission, project work	20

Practical Work: Students must perform all prescribed experiments, maintain a practical record, and demonstrate proficiency in dissection, mounting, and microscopic studies.

Mathematics Syllabus 2026-27

Tamil Nadu Board Class 11 Mathematics syllabus covers advanced mathematical concepts including algebra, calculus, and statistics. This subject is essential for engineering careers.

Unit	Topics	Marks
Algebra	Sets, Relations and Functions - Types, Operations Trigonometric Functions - Identities, Equations Complex Numbers and Quadratic Equations Permutations and Combinations Binomial Theorem - Expansion, Applications Sequence and Series - AP, GP, Special Series	20
Calculus	Limits and Derivatives - Concepts, Rules Continuity and Differentiability Application of Derivatives - Rate of Change, Maxima/Minima Integrals - Indefinite and Definite Integration Application of Integrals - Area under Curves Differential Equations - Formation, Solution	25
Statistics & Probability	Statistics - Measures of Central Tendency, Dispersion Probability - Conditional, Bayes' Theorem Random Variables and Probability Distributions	15
Vector & 3D Geometry	Vectors - Algebra, Dot and Cross Product Three Dimensional Geometry - Lines, Planes Linear Programming - Formulation, Graphical Method	20
Internal Assessment	Periodic tests, notebook submission, subject enrichment activities	20

Note: Regular practice is essential for Mathematics. Solve problems from each unit daily and focus on understanding concepts. This subject is crucial for JEE Main and TNEA preparation.

English Syllabus 2026-27

Tamil Nadu Board Class 11 English syllabus develops advanced language skills including reading, writing, grammar, and literature appreciation essential for higher education.

Unit	Topics	Marks
Reading Comprehension	Unseen passages with comprehension questions Inference and analytical questions Advanced vocabulary building Summary writing from passages Critical thinking questions	15
Literature	Selected prose pieces from prescribed textbook Selected poems from prescribed textbook Literary analysis and interpretation Thematic and stylistic analysis Character analysis and plot study Poetic devices and appreciation	20
Grammar	Advanced Tenses and their usage Active and Passive Voice Direct and Indirect Speech Advanced Parts of Speech Modals and their usage Subject-Verb Agreement Sentence Transformation Error Correction	20
Writing Skills	Essay Writing - Descriptive, Narrative, Argumentative Letter Writing - Formal, Informal, Business Precis Writing and Summary Paragraph Writing Dialogue Writing Report Writing	15
Internal Assessment	Periodic tests, notebook submission, subject enrichment activities	20

Pro Tip: Read English newspapers, magazines, and books regularly to improve vocabulary and comprehension skills. Practice writing essays on contemporary topics.

Tamil (தமிழ்) Syllabus 2026-27

Tamil Nadu Board Class 11 Tamil syllabus develops advanced language proficiency through literature, grammar, and composition. Students appreciate Tamil literature while building communication skills.

Unit	Topics	Marks
இலக்கியம் (Literature)	கற்பனை இலக்கியம் - கவிதை மற்றும் உரைநடை உரைநடை இலக்கியம் - சிறுகதை, கட்டுரை இலக்கிய வரலாறு - பண்டைய, இடைக்கால, நவீன இலக்கியப் படைப்பாளர்கள் - தஞ்சை, திருவள்ளுவர் இலக்கிய வகைகள் - உரைநடை, கவிதை, நாடகம் நவீன தமிழ் இலக்கியப் போக்குகள்	25
இலக்கணம் (Grammar)	சந்தி - உயிர்ச்சந்தி, மெய்ச்சந்தி, புள்ளிச்சந்தி சமாசம் - தத்புருச, பஹுவிரிஹி, த்வந்துவ வேற்றுமை - முதலாம், இரண்டாம், மூன்றாம், நான்காம் அணிகள் - உவமை, உருவகம், தொடை, இயைபு சொல்வகை - பெயர்ச்சொல், வினைச்சொல், உரிச்சொல் தொடரியல் - வாக்கிய அமைப்பு இலக்கணப் பயிற்சி - சரியான வாக்கிய அமைப்பு	30
உரைநடை (Composition)	கட்டுரை எழுதுதல் - விளக்கவுரை, விவரணை கடிதம் எழுதுதல் - முறையான, முறைசாரா சுருக்கம் எழுதுதல் - கருத்து சுருக்கம் கதை எழுதுதல் - படைப்பு எழுத்து உரையாடல் எழுதுதல் விளம்பரம் எழுதுதல்	15
Internal Assessment	Periodic tests, notebook submission, subject enrichment activities	20

Note: Students can choose between Tamil and English medium. The syllabus content is adapted accordingly for each medium.

Syllabus Download & Resources

Official Syllabus PDF

Download the complete Tamil Nadu Board Class 11 Science syllabus PDF from the official TNBSE website.

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