IIT-JEE • Chemistry
High-Yield Weightage Matrix
IIT-JEE Chemistry Syllabus & PYQ Weightage Matrix
Detailed chapter breakdown calibrated against NTA blueprints and 2019–2026 historical Previous Year Questions. Track high-frequency topics and schedule active recall drills on Adapt Vector.
Total Chapters
19 High-Yield Topics
Pedagogical Units
3 Core Modules
Estimated Mastery Time
212 Hours
Module 1: Physical Chemistry
3.1% PYQ Weightage~8h study
Some Basic Concepts of Chemistry (Mole Concept)
Key Subtopics:
- Laws of Chemical Combination & Dalton’s Atomic Theory
- Atomic & Molecular Masses, Mole Concept & Molar Mass
- Percentage Composition, Empirical & Molecular Formulas
- +2 more subtopics
4.3% PYQ Weightage~10h study
Atomic Structure & Quantum Numbers
Key Subtopics:
- Dual Nature of Matter & Heisenberg Uncertainty Principle
- Schrödinger Wave Equation, Orbitals & Quantum Numbers (n, l, m, s)
- Shapes of s, p, d, f Orbitals & Radial/Angular Nodes
- +2 more subtopics
6% PYQ Weightage~13h study
Chemical Thermodynamics & Energetics
Key Subtopics:
- System, Surroundings & State Functions
- First Law of Thermodynamics (q, w, ΔU, ΔH)
- Hess’s Law of Constant Heat Summation & Enthalpies of Reactions
- +3 more subtopics
6.6% PYQ Weightage~14h study
Chemical & Ionic Equilibrium
Key Subtopics:
- Law of Mass Action, Kp & Kc Relationships
- Le Chatelier's Principle & Effect of P, T, V, Catalysts
- Arrhenius, Bronsted-Lowry & Lewis Acid-Base Theories
- +4 more subtopics
5.7% PYQ Weightage~12h study
Redox Reactions & Electrochemistry
Key Subtopics:
- Oxidation Numbers & Balancing of Redox Reactions
- Galvanic Cells, Electrode Potentials & Standard Hydrogen Electrode (SHE)
- Nernst Equation & Electrochemical Series Applications
- +3 more subtopics
4.8% PYQ Weightage~10h study
Chemical Kinetics
Key Subtopics:
- Rate of Reaction, Rate Law & Rate Constant
- Order & Molecularity of a Reaction
- Integrated Rate Equations for Zero & First Order Reactions
- +2 more subtopics
4.6% PYQ Weightage~11h study
Solutions & Colligative Properties
Key Subtopics:
- Types of Solutions & Henry's Law of Gas Solubility
- Raoult's Law for Ideal & Non-Ideal Solutions
- Relative Lowering of Vapor Pressure
- +3 more subtopics
Module 2: Inorganic Chemistry
3.1% PYQ Weightage~8h study
Periodic Table & Periodic Properties
Key Subtopics:
- Modern Periodic Law & Long Form of Periodic Table
- Periodic Trends in Atomic & Ionic Radii
- Ionization Enthalpy & Electron Gain Enthalpy Trends
- +2 more subtopics
7.7% PYQ Weightage~13h study
Chemical Bonding & Molecular Structure
Key Subtopics:
- Ionic Bonding, Lattice Enthalpy & Born-Haber Cycle
- Fajan’s Rules & Covalent Character in Ionic Bonds
- VSEPR Theory & Prediction of Molecular Geometries
- +3 more subtopics
7.1% PYQ Weightage~14h study
Coordination Compounds
Key Subtopics:
- Werner's Coordination Theory & Coordination Entities
- Ligands Classification, Denticity & Chelation
- IUPAC Nomenclature of Coordination Compounds
- +4 more subtopics
4.3% PYQ Weightage~11h study
d & f-Block Elements
Key Subtopics:
- General Electronic Configurations & Oxidation States of 3d Series
- Standard Electrode Potentials & Trends in 3d Transition Metals
- Magnetic Properties, Color of Ions & Catalytic Properties
- +3 more subtopics
5.1% PYQ Weightage~11h study
p-Block Elements (Groups 13 to 18)
Key Subtopics:
- Group 13 & 14 Elements Trends, Inert Pair Effect & Allotropes of Carbon
- Group 15 Elements (Nitrogen, Phosphorus, Hydrides, Oxides & Oxoacids)
- Group 16 Elements (Oxygen, Sulfur, Allotropes, Oxoacids of Sulfur & Ozone)
- +2 more subtopics
Module 3: Organic Chemistry
8.3% PYQ Weightage~13h study
General Organic Chemistry (GOC) & Isomerism
Key Subtopics:
- IUPAC Nomenclature of Multifunctional Organic Compounds
- Inductive Effect, Resonance/Mesomeric Effect & Electromeric Effect
- Hyperconjugation & Aromaticity (Hückel’s 4n+2 Rule)
- +3 more subtopics
5.1% PYQ Weightage~11h study
Hydrocarbons (Alkanes, Alkenes, Alkynes, Arenes)
Key Subtopics:
- Free Radical Halogenation of Alkanes & Combustion
- Preparation & Electrophilic Addition Reactions of Alkenes (Markovnikov / Anti-Markovnikov)
- Ozonolysis, Hydroboration-Oxidation & Hydroxylation of Alkenes
- +2 more subtopics
4.3% PYQ Weightage~10h study
Haloalkanes & Haloarenes
Key Subtopics:
- Nucleophilic Substitution Reactions (SN1 vs SN2 Mechanisms & Stereochemistry)
- Elimination Reactions (E1 vs E2 & Saytzeff vs Hofmann Rule)
- Reactions of Haloarenes & Nucleophilic Aromatic Substitution (SNAr)
- +2 more subtopics
4.8% PYQ Weightage~11h study
Alcohols, Phenols & Ethers
Key Subtopics:
- Preparation & Properties of Alcohols (Acidic Nature, Dehydration & Oxidation)
- Lucas Test, Victor Meyer Test & Distinction of 1°, 2°, 3° Alcohols
- Phenol: Preparation from Cumene, Acidic Nature & Electrophilic Substitution
- +2 more subtopics
7.4% PYQ Weightage~13h study
Aldehydes, Ketones & Carboxylic Acids
Key Subtopics:
- Nucleophilic Addition Reactions to Carbonyl Group (HCN, NaHSO3, Grignard, Alcohols)
- Addition-Elimination with Ammonia Derivatives & 2,4-DNP Test
- Tollens’ Test, Fehling’s Test & Haloform Reaction
- +3 more subtopics
4.3% PYQ Weightage~10h study
Organic Compounds Containing Nitrogen (Amines & Diazonium Salts)
Key Subtopics:
- Gabriel Phthalimide Synthesis & Hoffmann Bromamide Degradation
- Basicity of Aliphatic vs Aromatic Amines in Aqueous & Gaseous Phases
- Hinsberg Test for Distinction of 1°, 2°, 3° Amines
- +1 more subtopics
3.4% PYQ Weightage~9h study
Biomolecules (Carbohydrates, Proteins, Nucleic Acids & Enzymes)
Key Subtopics:
- Carbohydrates: Classification, D/L Configuration, Glucose & Fructose Structures
- Reducing vs Non-Reducing Sugars, Glycosidic Bond & Mutarotation
- Amino Acids: Zwitterions, Isoelectric Point & Peptide Bonds
- +3 more subtopics
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