Joint Entrance Examination (Main) • Conducted by National Testing Agency (NTA)
Comprehensive NTA Curriculum Breakdown across Mathematics, Physics & Chemistry with NCERT Rationalization Analysis
The official syllabus for the Joint Entrance Examination (Main) is formulated by the National Testing Agency in consultation with the National Council of Educational Research and Training (NCERT), the Central Board of Secondary Education (CBSE), and state school education boards. Comprising core concepts spanning the Class 11 and Class 12 curricula across Mathematics, Physics, and Chemistry, the syllabus evaluates deep theoretical foundations, experimental methodology, and multi-concept analytical problem-solving.
In recent testing cycles, the Ministry of Education executed landmark syllabus rationalizations, eliminating redundant, purely descriptive, and pedagogically outdated chapters (such as Solid State, Surface Chemistry, Metallurgy, Polymers, Communication Systems, and Mathematical Reasoning). Aspirants must ensure their preparation strictly aligns with the rationalized curriculum to prevent squandering valuable study hours on discarded topics. Below is the authoritative subject-by-subject curriculum matrix, chapter weightage analysis, deleted topic directory, and experimental skills catalog.
Total Subjects
3 Disciplines
Maths, Physics, Chemistry
Class Split
45% : 55%
Class 11 vs Class 12
Deleted Topics
10+ Chapters
Rationalized Curriculum
Experimental Skills
2-3 Questions
Practical Lab Manual Core
Mathematics in JEE Main is traditionally recognized as the most analytical and time-intensive section. The curriculum spans four core thematic pillars:
| Mathematical Domain | Prescribed Syllabus Chapters | Expected Weightage | High-Yield Conceptual Focal Points |
|---|---|---|---|
| Calculus (Differential & Integral) | Functions, Limits, Continuity, Differentiability, Application of Derivatives, Indefinite Integrals, Definite Integrals, Area Under Curves, Differential Equations | 32% to 35% (8-9 Questions) | Leibnitz rule of differentiation under integral sign, tangent-normal geometry, maxima-minima optimization, standard areas bounded by conics and lines, linear first-order differential equations (integrating factors) |
| Coordinate Geometry (2D & 3D) | Straight Lines, Circles, Parabola, Ellipse, Hyperbola, Vector Algebra, Three Dimensional Geometry | 28% to 30% (7-8 Questions) | Shortest distance between skew lines, plane and line intersections, standard conic tangent equations, focal chords, eccentric angles, scalar triple product, vector projection properties |
| Algebra & Number Systems | Complex Numbers, Quadratic Equations, Matrices & Determinants, Permutations & Combinations, Binomial Theorem, Sequence & Series | 24% to 26% (6-7 Questions) | Roots of complex polynomials, Euler form, Cramer rule of linear systems, adjoint and inverse determinant identities, binomial expansion with fractional indices, arithmetic-geometric progressions (AGP), AM-GM inequality |
| Trigonometry, Statistics & Probability | Trigonometric Equations, Inverse Trigonometric Functions (ITF), Heights & Distances, Statistics (Variance & Std Dev), Probability | 12% to 15% (3-4 Questions) | Mean and variance calculations with changed observations, conditional probability, Bayes theorem, Bernoulli trials, principal value domains of inverse trigonometric functions |
Physics questions in JEE Main balance rigorous numerical problem-solving with direct conceptual application. Questions emphasize foundational physical laws and SI unit mechanics:
| Physics Domain | Prescribed Syllabus Chapters | Expected Weightage | High-Yield Conceptual Focal Points |
|---|---|---|---|
| Electrodynamics & Magnetism | Electrostatics, Electric Potential & Capacitance, Current Electricity, Moving Charges & Magnetism, Magnetism & Matter, Electromagnetic Induction (EMI), Alternating Current (AC), Electromagnetic Waves | 30% to 32% (7-8 Questions) | Gauss Law flux applications, RC circuit transient charging, Kirchhoff loop laws, Biot-Savart circular loop fields, Ampere law, Faraday & Lenz law induced EMF, LCR series resonance circuits, Q-factor, EM wave Poynting vectors |
| Classical Mechanics | Units & Measurements, Kinematics (1D & 2D), Laws of Motion & Friction, Work, Energy & Power, System of Particles & Rotational Motion, Gravitation, Mechanical Properties of Solids & Fluids | 26% to 28% (6-7 Questions) | Parallel/perpendicular axis theorems, rolling without slipping, angular momentum conservation, work-energy theorem, terminal velocity in viscous flow, Bernoulli theorem, orbital velocity & escape speed |
| Modern Physics & Electronics | Dual Nature of Radiation & Matter, Atoms, Nuclei, Semiconductor Electronics (Diodes & Logic Gates) | 18% to 20% (4-5 Questions) | Einstein photoelectric equation, de Broglie matter waves, Bohr hydrogen atomic transitions, radioactive decay law, binding energy curve, p-n junction forward/reverse bias characteristics, Zener voltage regulation, logic gate truth tables |
| Optics (Ray & Wave) | Ray Optics & Optical Instruments, Wave Optics (Huygens Principle & Interference) | 10% to 12% (2-3 Questions) | Lens maker formula, prism minimum deviation, compound microscope & astronomical telescope magnification, Young's double-slit experiment (YDSE) fringe width, diffraction single-slit central maxima |
| Thermodynamics & Oscillations | Thermal Properties of Matter, Thermodynamics, Kinetic Theory of Gases, Oscillations (SHM), Waves & Sound | 12% to 14% (3-4 Questions) | First law of thermodynamics ($Q = \Delta U + W$), isobaric/isothermal/adiabatic processes, molar heat capacities ($C_p - C_v = R$), degrees of freedom, simple harmonic motion velocity/acceleration equations, resonance organ pipes, Doppler effect |
Chemistry offers the highest marks-per-minute return in JEE Main. A student with thorough NCERT mastery can routinely score 80+ marks in under 45 minutes:
| Chemistry Branch | Prescribed Syllabus Chapters | Expected Weightage | High-Yield Conceptual Focal Points |
|---|---|---|---|
| Physical Chemistry | Some Basic Concepts in Chemistry (Mole Concept), Atomic Structure, Chemical Thermodynamics, Chemical Equilibrium, Ionic Equilibrium, Redox Reactions, Chemical Kinetics, Solutions | 32% to 34% (8 Questions) | Bohr model spectral lines, quantum numbers, enthalpy of reaction, Gibbs free energy ($\Delta G = \Delta H - T\Delta S$), buffer solutions and solubility product ($K_{sp}$), first-order rate constant integrated law, Arrhenius equation, Raoult law, colligative properties (elevation in boiling point, osmotic pressure), Van't Hoff factor |
| Inorganic Chemistry | Classification of Elements & Periodicity, Chemical Bonding & Molecular Structure, p-Block Elements, d- and f-Block Elements, Coordination Compounds | 32% to 34% (8 Questions) | VSEPR molecular geometries, hybridization ($sp^3d^2$), MOT bond order and magnetic behavior, crystal field theory (CFT) crystal field splitting energy, Werner coordination theory, IUPAC complex nomenclature, isomerism, lanthanide contraction consequences, potassium dichromate and permanganate redox chemistry |
| Organic Chemistry | Purification & Characterization, Some Basic Principles (GOC), Hydrocarbons, Haloalkanes & Haloarenes, Alcohols, Phenols & Ethers, Aldehydes, Ketones & Carboxylic Acids, Amines, Biomolecules | 34% to 36% (9 Questions) | Carbocation stability, inductive and resonance effects, Markovnikov and anti-Markovnikov additions, $S_N1$ vs $S_N2$ nucleophilic substitutions, Aldol condensation, Cannizzaro reaction, Clemmensen and Wolff-Kishner reductions, Gabriel phthalimide synthesis, Hinsberg reagent test for amines, peptide bonds, carbohydrate glucose structures, DNA/RNA nucleotide bases |
NTA explicitly tests experimental understanding through dedicated questions drawn from high school laboratory practicals:
| Subject | Prescribed Laboratory Experiments in Official Syllabus | Core Tested Analytical Skills |
|---|---|---|
| Practical Physics | Vernier Calipers, Screw Gauge, Simple Pendulum (dissipation of energy), Meter Bridge (wire resistance), Post Office Box, Speed of Sound using Resonance Tube, Focal Length of Spherical Mirrors/Lenses using u-v method, Refractive Index using Travelling Microscope, Zener Diode characteristic curve | Least count derivations, zero error corrections (positive/negative), percentage error propagation, graphical slope analysis |
| Practical Chemistry | Detection of Nitrogen, Sulfur, Halogens in organic compounds (Lassaigne test); Detection of functional groups (hydroxyl, carbonyl, carboxyl, amino); Titrimetric analysis ($KMnO_4$ vs Mohr salt and oxalic acid); Preparation of lyophilic/lyophobic sols; Salt analysis of cations and anions | Stoichiometric redox ratios, indicator end-point coloration, qualitative flame test colors, confirmatory group reagent reactions |
Top-tier percentiles (99.0+ percentile) are distinguished by mastery of cross-chapter synthesis, where NTA combines two or three distinct syllabus domains into a single high-order question:
• Calculus + Coordinate Geometry: Applying differential calculus to find the minimum distance between a standard parabola and an eccentric ellipse, or finding tangents to parametric cubics.
• Rotational Mechanics + Thermodynamics: Calculating the rotational kinetic energy of a heat-expansion cylinder subjected to thermal torque.
• Electrochemistry + Chemical Equilibrium: Relating cell EMF ($E_{cell}$) via Nernst equation to the solubility product ($K_{sp}$) of sparingly soluble silver halide salts.
To eliminate unnecessary rote memorization, NTA permanently purged several chapters from the examination scope. Aspirants must strictly avoid wasting study hours on these deleted topics:
| Subject | Completely Deleted Chapters / Removed Content | Retained & Highly Tested Core Focus Areas |
|---|---|---|
| Mathematics | Mathematical Induction, Mathematical Reasoning, Linear Programming, Three Dimensional Geometry (Vector Equation of Planes removed) | |
| Physics | Communication Systems, Rolling Motion derivations, Color Coding of Carbon Resistors, Potentiometer and its applications, Transistors & amplifiers, Davisson-Germer experiment | |
| Chemistry | Solid State, Surface Chemistry, General Principles of Extraction (Metallurgy), Hydrogen, s-Block Elements, Polymers, Environmental Chemistry, Chemistry in Everyday Life, Thomson and Rutherford atomic models |
Qualitative analysis remains a vital component of the JEE Main Practical Chemistry curriculum. Candidates are tested on systematic group separation of basic radicals (cations) and identification of acid radicals (anions):
| Analytical Group | Cations Detected in Official Syllabus | Prescribed Group Reagent | Precipitate Formed & Characteristic Chemical Color | Confirmatory Test Reactions |
|---|---|---|---|---|
| Group 0 | $NH_4^+$ (Ammonium) | $NaOH$ solution (warm) | Pungent smelling Ammonia ($NH_3$) gas evolved | Forms dense white fumes of $NH_4Cl$ with $HCl$; gives brown precipitate with Nessler's reagent ($K_2[HgI_4]$) |
| Group I | $Pb^{2+}$ (Lead) | Dilute Hydrochloric Acid ($HCl$) | White precipitate of Lead Chloride ($PbCl_2$) | Precipitate dissolves in hot water; gives yellow precipitate of $PbCrO_4$ with $K_2CrO_4$; yellow precipitate of $PbI_2$ with $KI$ |
| Group II | $Cu^{2+}$ (Copper), $Pb^{2+}$ (Lead) | Hydrogen Sulfide ($H_2S$) gas in presence of dilute $HCl$ | Black precipitate of CuS and PbS | CuS dissolves in hot dilute $HNO_3$, giving deep blue solution with excess aqueous $NH_4OH$ ($[Cu(NH_3)_4]^{2+}$) |
| Group III | $Fe^{3+}$ (Iron), $Al^{3+}$ (Aluminium) | Ammonium Chloride ($NH_4Cl$) solid + Ammonium Hydroxide ($NH_4OH$) in excess | Reddish-brown precipitate of $Fe(OH)_3$; gelatinous white precipitate of $Al(OH)_3$ | $Fe^{3+}$ yields deep Prussian blue precipitate with potassium ferrocyanide ($K_4[Fe(CN)_6]$); $Al^{3+}$ dissolves in excess $NaOH$ forming aluminate |
| Group IV | $Zn^{2+}$ (Zinc), $Ni^{2+}$ (Nickel) | $H_2S$ gas in presence of $NH_4OH$ and $NH_4Cl$ | White precipitate of ZnS; black precipitate of NiS | NiS gives scarlet red precipitate with dimethylglyoxime (DMG) in ammoniacal medium; ZnS gives white precipitate with potassium ferrocyanide |
| Group V | $Ba^{2+}$ (Barium), $Ca^{2+}$ (Calcium) | Ammonium Carbonate ($(NH_4)_2CO_3$) in presence of $NH_4OH$ and $NH_4Cl$ | White precipitate of $BaCO_3$ and $CaCO_3$ | $Ba^{2+}$ imparts apple-green flame color; $Ca^{2+}$ imparts brick-red flame color; $Ba^{2+}$ gives yellow precipitate with potassium chromate |
| Group VI | $Mg^{2+}$ (Magnesium) | Disodium Hydrogen Phosphate ($Na_2HPO_4$) in ammoniacal medium | Crystalline white precipitate of $Mg(NH_4)PO_4$ | Forms white precipitate of magnesium ammonium phosphate upon scratching the inner glass test tube walls |
The Pareto distribution (80/20 rule) in JEE Main demonstrates that approximately 65% of all marks originate from 35 dominant chapters across the three subjects. Prioritizing these modules guarantees maximum scoring efficiency:
| Academic Subject | Tier 1: High Yield & Fast Execution (Must Master First) | Tier 2: High Yield & Analytical Depth (Requires Problem Drill) | Tier 3: Moderate Weightage & Foundational |
|---|---|---|---|
| Physics | Modern Physics (Atoms, Nuclei, Dual Nature), Semiconductor Diodes & Logic Gates, Current Electricity, Heat & Thermodynamics, Gravitation | Rotational Dynamics, Electrostatics & Capacitance, Magnetic Effects of Current, Ray Optics, Work Energy Power | Simple Harmonic Motion, Fluid Mechanics, Wave Optics, Mechanical Properties of Solids |
| Chemistry | Coordination Compounds, Chemical Bonding & Molecular Structure, Solutions, Chemical Kinetics, Biomolecules, d & f-Block Elements | General Organic Chemistry (GOC), Carbonyl Compounds (Aldehydes & Ketones), Chemical Thermodynamics, Electrochemistry | Ionic Equilibrium, Hydrocarbons, Haloalkanes & Haloarenes, Amines |
| Mathematics | Vectors & 3D Geometry (Lines), Matrices & Determinants, Sequences & Series, Differential Equations, Statistics | Definite Integration & Area Under Curves, Application of Derivatives, Binomial Theorem, Straight Lines & Circles | Probability, Complex Numbers, Parabola & Conic Sections, Permutations & Combinations |
The official, authentic syllabus PDF is uploaded on jeemain.nta.nic.in alongside the Information Bulletin for the current academic session.
Yes. NTA streamlined the syllabus by removing chapters like Solid State, Metallurgy, Surface Chemistry, Communication Systems, and Mathematical Reasoning to align with rationalized NCERT textbooks.
No. NTA strictly adheres to the notified syllabus. Questions from deleted chapters (such as Polymers or Metallurgy) are no longer included in the question bank.
For Inorganic Chemistry and Biomolecules, NCERT is 100% sufficient. For Physical Chemistry and advanced Organic mechanisms, additional numerical practice from standard reference books is strongly recommended.
In Mathematics, Calculus carries ~33% weightage. In Physics, Electrodynamics carries ~30% weightage. In Chemistry, Organic Chemistry carries ~35% weightage.
Yes. NTA includes 1 to 2 questions from Practical Physics, including Vernier calipers, screw gauge, simple pendulum, meter bridge, and resonance tube experiments.
Yes. Detection of cations ($Pb^{2+}, Cu^{2+}, Fe^{3+}, Al^{3+}, Zn^{2+}, Ni^{2+}, Ca^{2+}, Ba^{2+}, Mg^{2+}, NH_4^+$) and anions is explicitly retained in the experimental chemistry section.
Revise chapter-wise mathematical formulas before launching your test: