NEET Chemistry Syllabus 2024 PDF - Important Topics, Chapter-wise Weightage

Release Date of NEET Chemistry Syllabus 2024

October 6, 2023

Total Number of Questions from Chemistry Subject

50 Questions (45 to be attempted)

Types of Questions

Multiple Choice Questions (MCQs)

Sections in NEET 2024 Question Paper per Subject

Section A and Section B

NEET Chemistry Section A Number of Questions

35 Compulsory Questions

NEET Chemistry Section B Number of Questions

15 Optional Questions (Only 10 to be attempted)

Total Marks

180 marks (4 marks per question)

NEET Chemistry Syllabus Weightage

25%

• Bohr Model of Hydrogen Atom

Unit 1 - Structure of Atom

• Fajan's Rule
• Elementary Idea of Metallic Bonding
• Concept of Ionic and Covalent Bonds
• Kossel - Lewis Approach to Chemical Bond Formation

Unit 3 - Chemical Bonding and Molecular Structure

• System and Surroundings
• Types of Processes
• Fundamentals of Thermodynamics
• Extensive and Intensive Properties' State Functions
• First and Second Law of Thermodynamics

Unit 4 - Chemical Thermodynamics

• Molar Conductivities Variation with Concentration
• Electrolytic and Metallic Conduction
• Kohlrausch's Law and Its Applications
• Conductance and their Electrolytic Solutions
• Electrochemical Cells

Unit 7 - Redox Reactions and Electrochemistry

• Collision Theory of Bimolecular Gaseous Reactions without Derivation
• Pressure

Unit 8 - Chemical Kinetics

• Transition Elements

Unit 11 - D and F Block Elements

• Differential extraction
• Distillation
• Purification
• Crystallization
• Chromatography
• Calculations of empirical formulae and molecular formulae
• Quantitative analysis - Estimation of carbon, nitrogen, hydrogen, sulphur, phosphorus and  halogens.
• Numerical problems in organic quantitative analysis

Unit 13 - Purification and Characterisation of Organic Compounds

• General methods of preparation
• IUPAC nomenclature
• Classification of isomerism
• Reactions

Unit 15 - Hydrocarbons

• General Methods of Preparation
• Mechanisms of Substitution Reactions
• Environmental effects of iodoform freons, chloroform, and DDT and its uses.

Unit 16 - Organic Compounds Containing Halogen

• Complete Unit has been newly added to the NEET 2024 Chemistry Syllabus.

Unit 20 - Principles Related to Practical Chemistry

Topics Deleted from Class 11th NCERT Text Books

Topics Deleted from Class 12th NCERT Text Books

Hydrogen

Polymer

s-block

Solid State

States of Matter

Surface Chemistry

Environmental Chemistry

Chemistry in Everyday Life

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Metallurgy

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

2

Atomic Structure

Nature of electromagnetic radiation, photoelectric effect; Spectrum of the hydrogen atom. Bohr model of a hydrogen atom - its postulates, derivation of the relations for the energy of the electron and radii of the different orbits, limitations of Bohr's model; Dual nature of matter, de Broglie's Relationship, Heisenberg uncertainty principle, Elementary ideas of quantum mechanics, quantum mechanics, the quantum mechanical model of the atom, its important features. Concept of atomic orbitals as one-electron wave functions: Variation of Y and Y2 with r for ls and 2s orbitals. 

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 orbits - Aufbau principle. Pauli's exclusion principle and Hund's rule, electronic configuration of elements, and extra stability of half-filled and completely filled orbitals.

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: Valence Shell Electron Pair Repulsion (VSEPR) theory and shapes of simple molecules.

Quantum mechanical approach to covalent bonding: Valence bond theory - its important features, the concept of hybridization involving s, p, and d orbitals; Resonance. 

Molecular Orbital Theory: Its important features. LCAOs, types of molecular orbitals, (bonding, antibonding), sigma and pi-bonds, molecular orbital electronic configurations of

homonuclear diatomic molecules, the concept of bond order, bond length, and bond energy.

Elementary idea of metallic Bonding. Hydrogen Bonding And its Applications.

4

Chemical Thermodynamics

Fundamentals of thermodynamics: system and surroundings, extensive and intensive properties' state functions, types of processes.

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 solutions

Second Law of Thermodynamics: Spontaneity of processes: ΔS of the universe and ΔC of the system as criteria for spontaneity. ΔG° (Standard' Gibbs energy change) and equilibrium constant.

5

Solutions

Different methods for expressing the concentration of solution - molality, molarity, mole fraction, percentage (by volume and mass both), the vapor pressure of solutions and Raoult’s law - Ideal and non-ideal solutions, vapor pressure - composition, plots for ideal and non-ideal solutions: colligative properties of dilute solutions - a relative lowering of vapor pressure, depression or mass freezing point, the 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.Meaning of equilibrium, the concept of dynamic equilibrium.

6

Equilibrium

Meaning of equilibrium, the concept of dynamic equilibrium.

Equilibria involving physical processes: Solid-Liquid-, Liquid-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 ΔG and ΔG° in chemical equilibrium, factors affecting equilibrium concentration, pressure, temperature, 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 constants, ionization of water. pH scale, common ion effect, hydrolysis of salts and pH of their solutions, the solutions, the solubility of sparingly soluble salts and solubility products, and buffer solutions.

7

Redox Reaction and ElectroChemistry

Electronic Concepts of Oxidation and Reduction, Redox Reaction, Oxidation Number, Rules for assigning oxidation number, balancing of redox reaction. 

Electrolytic and metallic conduction, conductance in electrolytes 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.

8

Chemical Kinetics

Rate of a chemical reaction, factors affecting the rate of reactions: concentration, pressure, temperature and catalyst; elementary and complex reactions, order and molecularity of reactions, rate law and rate constant and its units, differential and integral forms of zero and first-order reactions, their characteristics and half-lives, and the effect of temperature on the rate of reactions. Arrhenius theory, activation energy and its calculation, collision theory of bimolecular gaseous reactions (no derivation).

1

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, halogen, sulphur, phosphorus, calculations of empirical formula and molecular formulae: Numerical problems in organic quantitative analysis

2

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, oxygens, 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 efl.ect. resonance. and hyperconjugation.

Common types of organic reactions: Substitution, addition, elimination, and rearrangement.

3

Hydrocarbons

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

Alkanes - Conformations: Sawhorse and Newman halogenation of alkanes. projections (of ethane): Mechanism of Halogenation of Alkanes

Alkenes - Geometrical isomerism: Mechanism of electrophilic addition: addition of hydrogen, halogens, water, hydrogen halides (Markownikoffs 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

Friedelcraft's alkylation and acylation, directive influence of the functional group in mono-substituted benzene.

4

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

5

Organic Compounds Containing Oxygen

General methods of preparation, properties, reactions, and uses.

Alcohols, Phenols and Ethers

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 such as - Nucleophilic addition

reactions (addition of HCN. NH3 and its derivatives), Grignard reagent; oxidation: reduction

(wolf Kishner and Clemmensen); the acidity of a-hydrogen. aldol condensation cannizzaro

reaction. Haloform reaction, Chemical tests to distinguish between aldehydes and Ketones.

Carboxylic Acids

Acidic strength and factors affecting it.

6

Organic Compounds Containing Nitrogen

General methods of preparation. Properties, reactions, and uses.

Amines: Nomenclature, classification structure, basic character, and identification of primary, secondary, and tertiary amines and their basic character. 

Diazonium Salts: Importance in Synthetic Organic Chemistry

7

Biomolecules

General introduction and importance of biomolecules

Carbohydrates - Classification; aldoses and ketoses: monosaccharides (glucose and

fructose) and constituent monosaccharides of oligosaccharides (sucrose, lactose, and maltose).

Proteins - 

Elementary Idea of a-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)

8

Principles Related to Practical Chemistry

Detection of extra elements (Nitrogen, sulphur, halogens) in organic compounds; Detection of following functional groups; hydroxyl (alcoholic and phenolic), carbonyl (aldehyde and Ketones) carboxyl, and amino groups in organic compounds.

The Chemistry involved in the preparation of the following:

Inorganic compounds: Mohr's salt, potash alum.

Organic compounds: Acetanilide, p-nitro acetanilide,  aniline yellow, iodoform.

The Chemistry involved in the titrimetric exercises - Acids, bases and the use of indicators, oxalic acid vs KMnO4. Mohr's salt vs KMnO4

Chemical principles involved in the qualitative salt analysis:

cations - Pb2+. Cu2+. Al3*, Fe3+. zn2r, Ni2+, CA2+, Ba2, Mg2+. NH4+

Anions- CO32−, S2-, SO42-, NO3-, NO2-, Cl-, Br-, I- (Insoluble salts excluded)

Chemical principles involved in the following experiments:

1. Enthalpy of solution of CuSO4

2. Enthalpy of neutralization of strong acid and strong base. 
3. Preparation of lyophilic and lyophobic sols. 
4. Kinetic study of the reaction of iodide ions with hydrogen peroxide at room temperature.

1

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. 

2

P Block Elements

Group -13 to Group 18 Elements

General Introduction: Electronic configuration and general trends in physical and chemical properties of elements across the periods and down the groups; unique behavior of the first element in each group.

3

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 Lanthanide contractions. 

Actinoids- Electronic configuration and oxidation states.

4

Co-ordination Compounds

Introduction to coordination compounds, Werner’s theory; ligands, coordination number, denticity. Chelation; IUPAC nomenclature of mononuclear co-ordination compounds, isomerism; Bonding-Valence bond approach and basic ideas of Crystal Field theory, colour and magnetic properties, Importance of co-ordination compounds (in qualitative analysis, extraction of metals and in biological systems).

Some Basic Concepts of Chemistry

Some p-Block Elements

Chemical Bonding and Molecular Structure

Redox Reactions

Equilibrium

Classification of Elements and Periodicity

in Properties

Thermodynamics

Hydrocarbons

Structure of Atom

Organic Chemistry- Some Basic Principles and Techniques

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  NEET Chemistry Syllabus 2024 from Class 12

ElectroChemistry

Solutions

Biomolecules

Organic Compounds Containing Nitrogen

Aldehydes, Ketones and Carboxylic Acids

Alcohols, Phenols, and Ethers

Haloalkanes and Haloarenes

Coordination Compounds

d- and f-Block Elements

p-Block Elements

General Principles & Processes of

Isolation of Elements

Chemical Kinetics

Alcohols, Phenols and Ethers

2

4%

d-and f-block elements

2

4%

Bio-Molecules

1

3%

Equilibrium

3

6%

The Solid State

1

2%

Solutions

2

5%

s-block elements

1

2%

Thermodynamics

4

8%

States of Matter

1

2%

Environmental Chemistry

1

2%

Structure of Atom

1

2%

ElectroChemistry

1

2%

General Principles and Process of Isolation Elements

1

2%

Surface Chemistry

1

2%

Chemistry in everyday life

1

2%

p-block elements(15 16 17 18)

2

3.5%

Haloalkanes and Haloarenes; Amines

1

3%

Periodic table

1

2%

Hydrocarbons

1

3%

Aldehydes, Ketones and Carboxylic Acids

2

4%

Polymers

1

3%

Coordination Chemistry

4

9%

Hydrogen

1

3%

Redox reactions

1

3%

Chemical Kinetics

1

3%

Chemical bonding

2

5%

Organic Chemistry some basic principles and techniques - 1

1

2%

N containing Organic Compounds

1

3%

Organic Chemistry some basic principles and techniques - 2

1

2%

p-block elements (13 14)

2

3.5%

Total 

45

100