The JEE Main Chemistry Syllabus 2026 is one of the most important documents every JEE aspirant must study and understand thoroughly. Chemistry is a scoring subject in JEE Main. With the right preparation strategy and a clear understanding of all 20 official units, students can secure high marks and boost their overall percentile significantly.

This page provides the complete JEE Main 2026 Chemistry syllabus exactly as prescribed by the National Testing Agency (NTA), covering all units of Physical Chemistry, Inorganic Chemistry, and Organic Chemistry, along with unit-wise weightage, expert preparation tips, and a free downloadable PDF.

JEE Main Chemistry Syllabus 2026 - At a Glance

Physical Chemistry Syllabus - JEE Main 2026

Physical Chemistry covers Units 1 to 8 in the official NTA syllabus. It typically contributes around 30 to 35 percent of the Chemistry questions in JEE Main 2026.

Unit 1: Some Basic Concepts in Chemistry

•        Matter and its nature, Dalton's atomic theory

•        Concept of atom, molecule, element and compound

•        Laws of chemical combination

•        Atomic and molecular masses, mole concept, molar mass

•        Percentage composition, empirical and molecular formulae

•        Chemical equations and stoichiometry

Unit 2: Atomic Structure

•        Nature of electromagnetic radiation, photoelectric effect

•        Spectrum of the hydrogen atom

•        Bohr model of a hydrogen atom: postulates, derivation of relations for energy of electron and radii of orbits, limitations of Bohr's model

•        Dual nature of matter, de Broglie's relationship, Heisenberg uncertainty principle

•        Elementary ideas of quantum mechanics, quantum mechanical model of the atom and its important features

•        Concept of atomic orbitals as one-electron wave functions, variation of psi and psi-squared with r for 1s and 2s orbitals

•        Various quantum numbers (principal, angular momentum and magnetic quantum numbers) and their significance

•        Shapes of s, p and d orbitals, electron spin and spin quantum number

•        Rules for filling electrons in orbitals: Aufbau principle, Pauli's exclusion principle and Hund's rule

•        Electronic configuration of elements and extra stability of half-filled and completely filled orbitals

Unit 3: Chemical Bonding and Molecular Structure

•        Kossel-Lewis approach to chemical bond formation, the concept of ionic and covalent bonds

•        Ionic Bonding: Formation of ionic bonds, factors affecting the formation of ionic bonds, calculation of lattice enthalpy

•        Covalent Bonding: Concept of electronegativity, Fajan's rule, dipole moment, VSEPR theory and shapes of simple molecules

•        Quantum mechanical approach to covalent bonding: Valence bond theory, concept of hybridization involving s, p and d orbitals, resonance

•        Molecular Orbital Theory: LCAOs, types of molecular orbitals (bonding, antibonding), sigma and pi-bonds

•        Molecular orbital electronic configurations of homonuclear diatomic molecules, bond order, bond length and bond energy

•        Elementary idea of metallic bonding, hydrogen bonding and its applications

Unit 4: Chemical Thermodynamics

•        Fundamentals of thermodynamics: system and surroundings, extensive and intensive properties, state functions, entropy, types of processes

•        The first law of thermodynamics: concept of work, heat, internal energy and enthalpy, heat capacity, molar heat capacity

•        Hess's law of constant heat summation

•        Enthalpies of bond dissociation, combustion, formation, atomization, sublimation, phase transition, hydration, ionization and solution

•        The second law of thermodynamics: spontaneity of processes, delta S of the universe and delta G of the system as criteria for spontaneity

•        Standard Gibbs energy change and equilibrium constant

Unit 5: Solutions

•        Different methods for expressing the concentration of solution: molality, molarity, mole fraction, percentage (by volume and mass both)

•        Vapour pressure of solutions and Raoult's Law, ideal and non-ideal solutions

•        Vapour pressure-composition plots for ideal and non-ideal solutions

•        Colligative properties of dilute solutions: relative lowering of vapour pressure, depression of freezing point, elevation of boiling point and osmotic pressure

•        Determination of molecular mass using colligative properties

•        Abnormal value of molar mass, van't Hoff factor and its significance

Unit 6: Equilibrium

•        Meaning of equilibrium, concept of dynamic equilibrium

•        Equilibria involving physical processes: solid-liquid, liquid-gas, gas-gas and solid-gas equilibria, Henry's law

•        General characteristics of equilibrium involving physical processes

•        Equilibrium involving chemical processes: law of chemical equilibrium, equilibrium constants (Kp and Kc) and their significance

•        The significance of delta G and delta G-standard in chemical equilibrium

•        Factors affecting equilibrium: concentration, pressure, temperature, the effect of catalyst, Le Chatelier's principle

•        Ionic equilibrium: weak and strong electrolytes, ionization of electrolytes

•        Various concepts of acids and bases (Arrhenius, Bronsted-Lowry and Lewis) and their ionization

•        Acid-base equilibria (including multistage ionization) and ionization constants

•        Ionization of water, pH scale, common ion effect, hydrolysis of salts and pH of their solutions

•        Solubility of sparingly soluble salts, solubility products and buffer solutions

Unit 7: Redox Reactions and Electrochemistry

•        Electronic concepts of oxidation and reduction, redox reactions, oxidation number

•        Rules for assigning oxidation number and balancing of redox reactions

•        Electrolytic and metallic conduction, conductance in electrolytic solutions

•        Molar conductivities and their variation with concentration, Kohlrausch's law and its applications

•        Electrochemical cells: electrolytic and galvanic cells, different types of electrodes

•        Electrode potentials including standard electrode potential, half-cell and cell reactions

•        EMF of a galvanic cell and its measurement, Nernst equation and its applications

•        Relationship between cell potential and Gibbs' energy change

•        Dry cell and lead accumulator, fuel cells

Unit 8: Chemical Kinetics

•        Rate of a chemical reaction, factors affecting the rate of reactions: concentration, temperature, pressure and catalyst

•        Elementary and complex reactions, order and molecularity of reactions

•        Rate law, rate constant and its units

•        Differential and integral forms of zero and first-order reactions, their characteristics and half-lives

•        Effect of temperature on the rate of reactions, Arrhenius theory, activation energy and its calculation

•        Collision theory of bi-molecular gaseous reactions (no derivation)

Inorganic Chemistry Syllabus - JEE Main 2026

Inorganic Chemistry covers Units 9 to 12 in the official NTA syllabus. It is highly scoring for students who systematically revise from NCERT and contributes approximately 30 to 35 percent of Chemistry questions.

Unit 9: Classification of Elements and Periodicity in Properties

•        Modern periodic law and present form of the periodic table

•        s, p, d and f block elements

•        Periodic trends in properties of elements: atomic and ionic radii, ionization enthalpy, electron gain enthalpy, valence, oxidation states and chemical reactivity

Unit 10: p-Block Elements (Groups 13 to 18)

•        General introduction: electronic configuration and general trends in physical and chemical properties of elements across the periods and down the groups

•        Unique behaviour of the first element in each group

Unit 11: d- and f-Block Elements

•        Transition Elements: general introduction, electronic configuration, occurrence and characteristics

•        General trends in properties of the first-row transition elements: physical properties, ionization enthalpy, oxidation states, atomic radii, colour, catalytic behaviour, magnetic properties, complex formation, interstitial compounds, alloy formation

•        Preparation, properties and uses of K2Cr2O7 and KMnO4

•        Inner Transition Elements - Lanthanoids: electronic configuration, oxidation states and lanthanoid contraction

•        Actinoids: electronic configuration and oxidation states

Unit 12: Coordination Compounds

•        Introduction to coordination compounds, Werner's theory

•        Ligands, coordination number, denticity, chelation

•        IUPAC nomenclature of mononuclear coordination compounds

•        Isomerism

•        Bonding: valence bond approach and basic ideas of Crystal field theory

•        Colour and magnetic properties

•        Importance of coordination compounds in qualitative analysis, extraction of metals and in biological systems

Organic Chemistry Syllabus - JEE Main 2026

Organic Chemistry covers Units 13 to 20 in the official NTA syllabus. It is the most conceptual part of the Chemistry syllabus and contributes approximately 35 to 40 percent of Chemistry marks in JEE Main 2026.

Unit 13: Purification and Characterisation of Organic Compounds

•        Purification: crystallization, sublimation, distillation, differential extraction and chromatography - principles and their applications

•        Qualitative analysis: detection of nitrogen, sulphur, phosphorus and halogens

•        Quantitative analysis (basic principles only): estimation of carbon, hydrogen, nitrogen, halogens, sulphur and phosphorus

•        Calculations of empirical formulae and molecular formulae

•        Numerical problems in organic quantitative analysis

Unit 14: Some Basic Principles of Organic Chemistry

•        Tetravalency of carbon, shapes of simple molecules: hybridization (s and p)

•        Classification of organic compounds based on functional groups and those containing halogens, oxygen, nitrogen and sulphur

•        Homologous series

•        Isomerism: structural and stereoisomerism

•        Nomenclature (trivial and IUPAC)

•        Covalent bond fission: homolytic and heterolytic, free radicals, carbocations and carbanions

•        Stability of carbocations and free radicals, electrophiles and nucleophiles

•        Electronic displacement in a covalent bond: inductive effect, electromeric effect, resonance and hyperconjugation

•        Common types of organic reactions: substitution, addition, elimination and rearrangement

Unit 15: Hydrocarbons

•        Classification, isomerism, IUPAC nomenclature, general methods of preparation, properties and reactions

•        Alkanes: conformations (Sawhorse and Newman projections of ethane), mechanism of halogenation of alkanes

•        Alkenes: geometrical isomerism, mechanism of electrophilic addition, addition of hydrogen, halogens, water, hydrogen halides (Markovnikov's and peroxide effect), ozonolysis and polymerization

•        Alkynes: acidic character, addition of hydrogen, halogens, water and hydrogen halides, polymerization

•        Aromatic hydrocarbons: nomenclature, benzene structure and aromaticity, mechanism of electrophilic substitution

•        Halogenation, nitration, Friedel-Craft's alkylation and acylation

•        Directive influence of the functional group in mono-substituted benzene

Unit 16: Organic Compounds Containing Halogens

•        General methods of preparation, properties and reactions

•        Nature of C-X bond, mechanisms of substitution reactions

•        Uses, environmental effects of chloroform, iodoform, freons and DDT

Unit 17: Organic Compounds Containing Oxygen

•        General methods of preparation, properties, reactions and uses

•        Alcohols: identification of primary, secondary and tertiary alcohols, mechanism of dehydration

•        Phenols: acidic nature, electrophilic substitution reactions, halogenation, nitration and sulphonation, Reimer-Tiemann reaction

•        Ethers: structure

•        Aldehyde and Ketones: nature of carbonyl group, nucleophilic addition to C=O group

•        Relative reactivities of aldehydes and ketones

•        Important reactions: nucleophilic addition reactions (addition of HCN, NH3 and its derivatives), Grignard reagent, oxidation, reduction (Wolff Kishner and Clemmensen)

•        Acidity of alpha-hydrogen, aldol condensation, Cannizzaro reaction, haloform reaction

•        Chemical tests to distinguish between aldehydes and ketones

•        Carboxylic Acids: acidic strength and factors affecting it

Unit 18: Organic Compounds Containing Nitrogen

•        General methods of preparation, properties, reactions and uses

•        Amines: nomenclature, classification, structure, basic character

•        Identification of primary, secondary and tertiary amines and their basic character

•        Diazonium Salts: importance in synthetic organic chemistry

Unit 19: Biomolecules

•        General introduction and importance of biomolecules

•        Carbohydrates: classification, aldoses and ketoses, monosaccharides (glucose and fructose)

•        Constituent monosaccharides of oligosaccharides (sucrose, lactose and maltose)

•        Proteins: elementary idea of alpha-amino acids, peptide bond, polypeptides

•        Proteins: primary, secondary, tertiary and quaternary structure (qualitative idea only), denaturation of proteins, enzymes

•        Vitamins: classification and functions

•        Nucleic Acids: chemical constitution of DNA and RNA, biological functions of nucleic acids

•        Hormones (general introduction)

Unit 20: Principles Related to Practical Chemistry

•        Detection of extra elements (nitrogen, sulphur, halogens) in organic compounds

•        Detection of functional groups: hydroxyl (alcoholic and phenolic), carbonyl (aldehyde and ketones), carboxyl and amino groups in organic compounds

•        Chemistry involved in the preparation of: Mohr's salt, potash alum (inorganic); acetanilide, p-nitro acetanilide, aniline yellow, iodoform (organic)

•        Chemistry involved in titrimetric exercises: acids, bases and the use of indicators, oxalic acid vs KMnO4, Mohr's salt vs KMnO4

•        Chemical principles involved in qualitative salt analysis: Cations (Pb2+, Cu2+, Al3+, Fe3+, Zn2+, Ni2+, Ca2+, Ba2+, Mg2+, NH4+), Anions (CO3 2-, S2-, SO4 2-, NO3-, NO2-, Cl-, Br-, I-)

•        Chemical principles in experiments: enthalpy of solution of CuSO4, enthalpy of neutralization of strong acid and strong base, preparation of lyophilic and lyophobic sols, kinetic study of reaction of iodide ions with hydrogen peroxide

JEE Main Chemistry Unit-Wise Weightage 2026

Based on analysis of JEE Main question papers from 2019 to 2025, here is the approximate unit-wise weightage for Chemistry:

How to Prepare Chemistry for JEE Main 2026 - Expert Tips

1. Start with NCERT for Every Unit

NCERT Class 11 and Class 12 Chemistry textbooks are the backbone of JEE Main Chemistry preparation. The majority of Inorganic Chemistry (Units 9 to 12) and several Physical Chemistry units are directly based on NCERT. Read every line carefully.

2. Master Physical Chemistry with Daily Numericals

Physical Chemistry (Units 1 to 8) requires a strong mathematical foundation. Practise numerical problems on Chemical Kinetics, Electrochemistry, Solutions, and Equilibrium every day. Focus on understanding the concept before memorising formulas.

3. Build Reaction Maps for Organic Chemistry

Organic Chemistry (Units 13 to 20) tests your ability to connect reactions. Create flowcharts and reaction maps covering all named reactions such as Aldol condensation, Cannizzaro reaction, Friedel-Craft's reactions, and Reimer-Tiemann reaction.

4. Revise Inorganic Chemistry Weekly

Inorganic Chemistry (Units 9 to 12) is factual and requires consistent weekly revision. Prepare short notes for each unit including key reactions, properties, and important uses of compounds. Pay special attention to p-Block Elements and Coordination Compounds as these carry the highest weightage.

5. Solve Previous Year JEE Main Papers

Solving JEE Main Chemistry papers from 2015 to 2025 is the most effective revision strategy. Analyse which units appear most frequently and prioritise those in your revision schedule.

Conclusion

The JEE Main Chemistry Syllabus 2026 comprises 20 official units as prescribed by the NTA, spanning Physical Chemistry (Units 1 to 8), Inorganic Chemistry (Units 9 to 12), and Organic Chemistry (Units 13 to 20). With a disciplined study plan, thorough NCERT revision, and regular practice of previous year papers, Chemistry can be your highest-scoring section in JEE Main 2026.

Download the free PDF of the JEE Main Chemistry Syllabus 2026 using the link below. Keep it handy throughout your preparation to track your unit-by-unit progress. Start early, revise consistently, and aim for a perfect score in Chemistry. 

Frequently Asked Questions - JEE Main Chemistry Syllabus 2026

Q1. How many units are there in JEE Main Chemistry Syllabus 2026?

The official JEE Main Chemistry Syllabus 2026 as prescribed by the NTA consists of 20 units: 8 units of Physical Chemistry, 4 units of Inorganic Chemistry, and 8 units of Organic Chemistry.

Q2. Which is the most scoring unit in JEE Main Chemistry 2026?

p-Block Elements (Unit 10) is consistently the highest-weightage unit in Inorganic Chemistry, contributing 8 to 10 percent of Chemistry marks. In Organic Chemistry, questions from Units 14 to 18 collectively carry the most marks. In Physical Chemistry, Chemical Bonding and Equilibrium are the most tested units.

Q3. Is the JEE Main Chemistry Syllabus 2026 the same as 2025?

The JEE Main Chemistry Syllabus 2026 is largely based on the official 2025 NTA syllabus with 20 units. Students should always verify the latest notification at jeemain.nta.ac.in before beginning their preparation.

Q4. Is NCERT sufficient for JEE Main Chemistry 2026?

NCERT is sufficient for scoring well in Inorganic Chemistry and for building the foundation in Physical and Organic Chemistry. For a score above 90 out of 100, students should supplement NCERT with reference books like O.P. Tandon for Physical and Organic Chemistry and J.D. Lee for Inorganic Chemistry.

Q5. What is the marking scheme for Chemistry in JEE Main 2026?

For MCQ-type questions, a correct answer earns +4 marks and an incorrect answer results in a deduction of -1 mark. For Numerical Value type questions, a correct answer earns +4 marks with no negative marking for wrong attempts.

Q6. Which Chemistry units should I prioritise if I have limited time?

Prioritise p-Block Elements, Chemical Bonding, Equilibrium, Organic Compounds Containing Oxygen, Coordination Compounds, and Chemical Kinetics. These units together account for approximately 35 to 40 percent of the Chemistry marks in JEE Main.