NEET UG · Chemistry

NEET UG Chemistry Syllabus 2026-2027

Complete official syllabus for NEET UG Chemistry with data-backed unit weightage, Class 11 vs Class 12 split, and links to practice on Fundamenthol.

Last updated: 2026-08-05T00:00:00+05:30

At a Glance

Total topics

157

Total concepts

Topic-wise Syllabus & Weightage

Unit 1

Some Basic Concepts in Chemistry

1.89% weightage

Practice this topic

→Some Basic Concepts of ChemistryClass 111.89%

Concepts (8)

Matter and nature, Dalton's atomic theory
Concept of atom, molecule, element, 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

4.35% weightage

Practice this topic

→Atomic StructureClass 114.35%

Concepts (14)

Nature of electromagnetic radiation
Photoelectric effect, hydrogen spectrum
Bohr model: postulates, derivations, limitations
Dual nature of matter, de Broglie
Heisenberg uncertainty principle
Quantum mechanical model of atom
Atomic orbitals as wave functions
Variation of ψ and ψ² with r (1s, 2s)
Quantum numbers (principal, angular, magnetic)
Shapes of s, p, d orbitals
Electron spin, spin quantum number
Aufbau, Pauli, Hund's rule
Electronic configuration
Stability of half-filled and completely filled orbitals

Unit 3

Chemical Bonding and Molecular Structure

9.45% weightage

Practice this topic

→Chemical Bonding And Molecular StructureClass 119.45%

Concepts (12)

Kossel-Lewis approach
Ionic and covalent bonds
Ionic bonding: formation, factors, lattice enthalpy
Covalent bonding: electronegativity, Fajan's rule, dipole moment
VSEPR theory, shapes
Valence bond theory, hybridization (s, p, d)
Resonance
MO theory: LCAOs, bonding/antibonding orbitals
Sigma and pi bonds
MO configurations of homonuclear diatomics
Bond order, bond length, bond energy
Metallic and hydrogen bonding

Unit 4

Chemical Thermodynamics

3.59% weightage

Practice this topic

→Chemical ThermodynamicsClass 113.59%

Concepts (9)

System and surroundings
Extensive and intensive properties
State functions, types of processes
First law: work, heat, internal energy, enthalpy
Heat capacity, molar heat capacity
Hess's law
Enthalpies of bond dissociation, combustion, formation, atomization, sublimation, phase transition, hydration, ionization, solution
Second law: spontaneity, ΔS, ΔG
ΔG° and equilibrium constant

Unit 5

Solutions

6.62% weightage

Practice this topic

→SolutionsClass 126.62%

Concepts (7)

Concentration methods (molality, molarity, mole fraction, %)
Raoult's law
Ideal and non-ideal solutions
Vapour pressure-composition plots
Colligative properties: relative lowering of VP, depression of FP, elevation of BP, osmotic pressure
Molecular mass determination
Abnormal molar mass, van't Hoff factor

Unit 6

Equilibrium

3.97% weightage

Practice this topic

→EquilibriumClass 113.97%

Concepts (14)

Concept of dynamic equilibrium
Physical equilibria (solid-liquid, liquid-gas, gas-gas, solid-gas)
Henry's law
Chemical equilibria: law of chemical equilibrium, Kp, Kc
Significance of ΔG and ΔG°
Factors affecting equilibrium
Le Chatelier's principle
Ionic equilibrium: weak and strong electrolytes
Arrhenius, Bronsted-Lowry, Lewis concepts
Ionization constants
Ionization of water, pH scale
Common ion effect
Hydrolysis of salts
Solubility products, buffer solutions

Unit 7

Redox Reactions and Electrochemistry

6.43% weightage

Practice this topic

→ElectrochemistryClass 123.78%→Redox ReactionsClass 112.65%

Concepts (13)

Electronic concepts of oxidation and reduction
Oxidation number, balancing redox
Electrolytic and metallic conduction
Conductance in electrolytic solutions
Molar conductivities
Kohlrausch's law
Electrochemical cells: electrolytic and Galvanic
Electrodes, standard electrode potential
Half-cell and cell reactions
EMF of Galvanic cell, measurement
Nernst equation
Cell potential and Gibbs energy change
Dry cell, lead accumulator, fuel cells

Unit 8

Chemical Kinetics

4.91% weightage

Practice this topic

→Chemical KineticsClass 124.91%

Concepts (9)

Rate of reaction
Factors affecting rate
Elementary and complex reactions
Order and molecularity
Rate law, rate constant
Zero and first-order reactions, half-lives
Effect of temperature (Arrhenius)
Activation energy
Collision theory of bimolecular gaseous reactions

Unit 9

Classification of Elements and Periodicity in Properties

2.08% weightage

Practice this topic

→Classification Of Elements And Periodicity In PropertiesClass 112.08%

Concepts (4)

Modern periodic law
Present form of periodic table
s, p, d, f block elements
Periodic trends: atomic/ionic radii, IE, EGE, valence, oxidation states, reactivity

Unit 10

p-Block Elements

6.05% weightage

Practice this topic

→The p-Block Elements: Group 15, 16, 17 And 18Class 123.78%→The p-Block Elements: Group 13 & 14Class 112.27%

Concepts (3)

Group 13 to Group 18
Electronic configuration, general trends
Unique behaviour of first element in each group

Unit 11

d- and f-Block Elements

1.70% weightage

Practice this topic

→The d- And f-Block ElementsClass 121.70%

Concepts (5)

Transition elements: configuration, occurrence, characteristics
First-row trends: physical properties, IE, oxidation states, atomic radii, colour, catalytic behaviour, magnetic properties, complex formation, interstitial compounds, alloys
K₂Cr₂O₇, KMnO₄: preparation, properties, uses
Lanthanoids: configuration, oxidation states, lanthanoid contraction
Actinoids: configuration, oxidation states

Unit 12

Coordination Compounds

6.62% weightage

Practice this topic

→Coordination CompoundsClass 126.62%

Concepts (7)

Introduction, Werner's theory
Ligands, coordination number, denticity, chelation
IUPAC nomenclature (mononuclear)
Isomerism
Bonding: VBT, CFT basics
Colour and magnetic properties
Applications (qualitative analysis, extraction, biological systems)

Unit 13

Purification and Characterisation of Organic Compounds

0.95% weightage

Practice this topic

→Purification and Characterisation of Organic CompoundsClass 110.95%

Concepts (5)

Purification: crystallization, sublimation, distillation, extraction, chromatography
Qualitative analysis: detection of N, S, P, halogens
Quantitative analysis: estimation of C, H, N, halogens, S, P
Empirical and molecular formula calculations
Numerical problems

Unit 14

Some Basic Principles of Organic Chemistry

5.67% weightage

Practice this topic

→Some Basic Principles of Organic ChemistryClass 115.67%

Concepts (13)

Tetravalency of carbon
Shapes of simple molecules, hybridization (s, p)
Classification by functional groups
Compounds containing halogens, O, N, S
Homologous series
Isomerism: structural and stereoisomerism
Nomenclature (Trivial, IUPAC)
Bond fission: homolytic, heterolytic
Free radicals, carbocations, carbanions
Stability
Electrophiles and nucleophiles
Electronic displacement: inductive, electromeric, resonance, hyperconjugation
Types of reactions: substitution, addition, elimination, rearrangement

Unit 15

Hydrocarbons

3.02% weightage

Practice this topic

→HydrocarbonsClass 113.02%

Concepts (8)

Classification, isomerism, IUPAC nomenclature
General methods of preparation, properties, reactions
Alkanes: conformations (Sawhorse, Newman of ethane), halogenation mechanism
Alkenes: geometrical isomerism, electrophilic addition (H, halogens, water, HX with Markovnikov and peroxide effect), ozonolysis, polymerization
Alkynes: acidic character, addition reactions, polymerization
Aromatic: benzene structure, aromaticity, electrophilic substitution mechanism, halogenation, nitration
Friedel-Crafts alkylation and acylation
Directive influence in mono-substituted benzene

Unit 16

Organic Compounds Containing Halogens

3.21% weightage

Practice this topic

→Haloalkanes And HaloarenesClass 123.21%

Concepts (4)

Preparation, properties, reactions
Nature of C-X bond
Substitution reaction mechanisms
Uses and environmental effects of chloroform, iodoform, freons, DDT

Unit 17

Organic Compounds Containing Oxygen

7.74% weightage

Practice this topic

→Alcohols, Phenols And EthersClass 123.59%→Aldehydes And KetonesClass 123.02%→Carboxylic Acids And Their DerivativesClass 121.13%

Concepts (7)

Alcohols: identification, mechanism of dehydration
Phenols: acidic nature, electrophilic substitution, Reimer-Tiemann
Ethers: structure
Aldehydes and Ketones: carbonyl group, nucleophilic addition, HCN/NH₃/derivatives, Grignard, oxidation, reduction (Wolf-Kishner, Clemmensen)
Acidity of α-hydrogen, Aldol condensation, Cannizzaro, Haloform
Tests to distinguish aldehydes and ketones
Carboxylic acids: acidic strength and factors

Unit 18

Organic Compounds Containing Nitrogen

3.40% weightage

Practice this topic

→AminesClass 123.40%

Concepts (3)

Preparation, properties, reactions, uses
Amines: nomenclature, classification, structure, basic character
Diazonium salts: synthetic importance

Unit 19

Biomolecules

4.54% weightage

Practice this topic

→BiomoleculesClass 124.54%

Concepts (6)

General introduction and importance
Carbohydrates: classification, aldoses, ketoses, monosaccharides (glucose, fructose), oligosaccharides (sucrose, lactose, maltose)
Proteins: α-amino acids, peptide bond, polypeptides, primary/secondary/tertiary/quaternary structure, denaturation, enzymes
Vitamins: classification and functions
Nucleic Acids: structure of DNA and RNA, biological functions
Hormones (general introduction)

Unit 20

Principles Related to Practical Chemistry

1.51% weightage

Practice this topic

Concepts (6)

Detection of extra elements (N, S, halogens)
Detection of functional groups: hydroxyl, carbonyl, carboxyl, amino
Preparation: Mohr's salt, potash alum, acetanilide, p-nitro acetanilide, aniline yellow, iodoform
Titrimetric exercises: acids/bases/indicators; oxalic acid vs KMnO₄; Mohr's salt vs KMnO₄
Qualitative salt analysis:
Experiments:

Frequently Asked Questions

Is the NEET 2027 syllabus the same as 2026?

The NEET UG syllabus was reduced significantly by NMC in 2024 and has been stable since. The 2027 syllabus is expected to remain identical to 2026 unless NMC announces a further revision. This page will update immediately if any change is notified.

How many questions are there in NEET UG 2027?

NEET UG has 200 questions in total, out of which candidates must attempt 180. It is divided into four sections: Physics (45 questions), Chemistry (45), Botany (45), and Zoology (45). Each section allows 10 optional questions out of 15 in Section B.

Which subjects have highest weightage in NEET?

Biology (Botany plus Zoology) carries the highest weightage in NEET at 360 marks (half the total 720), followed by Physics and Chemistry at 180 marks each. Within Biology, Human Physiology, Genetics and Evolution, and Ecology are the highest-weightage chapters.

Which chapters were removed from NEET syllabus in 2024?

The 2024 NEET syllabus revision removed several chapters including: Transport in Plants, Mineral Nutrition, Digestion and Absorption, Strategies for Enhancement in Food Production, Reproduction in Organisms, and Environmental Issues (Biology). Certain Chemistry chapters like Environmental Chemistry, Solid State, Polymers, and Surface Chemistry were also removed.