Content Writer at Collegedunia | Updated On - Sep 19, 2024
JEE Main Reduced Syllabus 2025: NTA has reduced JEE Main syllabus for 2025 session. 11 chapters and several topics across JEE Main Syllabus 2025 PDF for Chemistry, Physics, and Maths have been deleted. The change has been made due to the reduced syllabus across several national and state boards and revised NCERT books.
The section below covers the list of Reduced chapters and topics from JEE Main Syllabus 2025 PDF:
- JEE Chemistry has had the most number of chapters reduced. NTA has Reduced 8 chapters from JEE Chemistry syllabus along with several topics.
- In Maths, 2 chapters have been deleted in addition to several topics such as properties of determinants, properties of Binomial coefficients, Rolle’s and Lagrange's Mean value Theorems, Bernoulli trials, and binomial distribution, etc.
- In Physics, the chapter on Communication Systems has been completely removed along with the deletion of topics such as the Potentiometer- principle and its applications, Electric Cell, Deviation and Dispersion of light by a prism; Lens Formula etc.
Also Check:
- JEE Main 2024 Question Paper with Solution and Answer PDF Download
- Most important chapters in JEE Main 2025, check here
- JEE Main Previous Year Question Papers available, download here
There also has been an addition to a few topics in the Physics and Chemistry syllabus for JEE Main 2025. For example, ‘Entropy’ topic has been added to Chemical Thermodynamics and ‘Hormones’ topic in Biomolecule chapters in Chemistry. Topics such as ‘Refraction of light through a prism’ in Optics, ‘Motion of a satellite, Orbital velocity, time period, and energy of satellite’ in Gravitation have been added to JEE Physics Syllabus.
The change in JEE Main Syllabus PDF 2025 is because of the rationalization of NCERT textbooks and the change in the syllabus across several state and national level boards.
IIT JEE aspirants are advised to start with their exam preparation using the new JEE Main NCERT books which are based on the latest syllabus. Candidates must note that no change has been made to JEE Main Exam Pattern 2025.
Is JEE 2025 syllabus Reduced?
JEE Main 2025 syllabus has been revised. There has been a deletion of 11 chapters from Physics, Chemistry and Maths. 6 units completely removed from Chemistry, 1 from Physics and 1 from Mathematics. Additionally, several topics have been removed from the syllabus. NTA has also added a few topics to the Physics and Chemistry syllabus.
Is inorganic chemistry removed from JEE Main 2025?
No such change has been made to JEE Main 2025 chemistry syllabus. Most chapters from JEE Main Chemistry have been Reduced from Inorganic Chemistry. 4 units from Inorganic Chemistry have been Reduced from JEE Main 2025 chemistry syllabus. Additionally, several topics across the other inorganic chemistry chapters have been removed. NTA has aimed to remove chapters that required rote memorization and therefore the maximum number of chapters and topics from Inorganic Chemistry have been Reduced.
What are the most important chapters in JEE Mains 2025?
Based on the previous year JEE Main trend analysis, the most important chapters in JEE Main 2025 are:
- Physics- Current Electricity, Semiconductor, Electrostatistics, Gravitation, Thermodynamics, Dual Nature of Matter, Nuclear Physics, Electromagnetic Waves, Units & Dimensions, Atomic Physics.
- Chemistry- Coordination Compounds, Chemical Bonding, Solutions, Thermodynamics, Structure of Atom, Chemical Kinetics, Electrochemistry, Biomolecules.
- Mathematics- 3D Geometry, Sequences and Series, Vector Algebra, Matrices, Sets and Relations, Determinants, Statistics.
JEE Main Chemistry Reduced Syllabus
JEE Main Chemistry Reduced Syllabus 2025
JEE Main Chemistry Syllabus 2025 has undergone the most changes. 8 units/ chapters have been completely removed from JEE syllabus PDF. Along with this several topics have been removed across 5 other units/ chapters. NTA has also added 2 new topics to chapters on Chemical Thermodynamics and Biomolecules. Candidates can check the list of deleted chapters and topics in JEE Main Chemistry Syllabus 2025 here.
| Units/ Chapters | Reduced Topics |
|---|---|
| Some Basic Concepts In Chemistry | Physical quantities and their measurements in Chemistry, precision, and accuracy, significant figures. S.I.Units, dimensional analysis |
| States Of Matter* | Classification of matter into solid, liquid, and gaseous states. |
| Atomic Structure | Thomson and Rutherford atomic models and their limitations; |
| Chemical Thermodynamics | - |
| Surface Chemistry* | Adsorption- Physisorption and chemisorption and their characteristics, factors affecting adsorption of gases on solids - Freundlich and Langmuir adsorption isotherms, adsorption from solutions. Catalysis - Homogeneous and heterogeneous, activity and selectivity of solid catalysts, enzyme catalysis, and its mechanism. Colloidal state- distinction among true solutions, colloids, and suspensions, classification of colloids - lyophilic. lyophobic; multi-molecular. macromolecular and associated colloids (micelles), preparation and properties of colloids - Tyndall effect. Brownian movement, electrophoresis, dialysis, coagulation, and flocculation: Emulsions and their characteristics. |
| General Principles And Processes Of Isolation Of Metals* | Modes of occurrence of elements in nature, minerals, ores; Steps involved in the extraction of metals - concentration, reduction (chemical and electrolytic methods), and refining with special reference to the extraction of Al. Cu, Zn, and Fe; Thermodynamic and electrochemical principles involved in the extraction of metals. |
| Hydrogen* | Position of hydrogen in the periodic table, isotopes, preparation, properties and uses of hydrogen; Physical and chemical properties of water and heavy water; Structure, preparation, reactions, and uses of hydrogen peroxide; Classification of hydrides - ionic, covalent, and interstitial; Hydrogen as a fuel. |
| s-Block Elements (Alkali And Alkaline Earth Metals)* | Group -1 and 2 Elements |
| p-Block Elements | Groupwise study of the p - block elements Group -13 Preparation, properties, and uses of boron and aluminum; Structure, properties, and uses of borax, boric acid, diborane, boron trifluoride, aluminum chloride, and alums. Group -14 The tendency for catenation; Structure, properties, and uses of Allotropes and oxides of carbon, silicon tetrachloride, silicates, zeolites, and silicones. Group -15 Properties and uses of nitrogen and phosphorus; Allotrophic forms of phosphorus; Preparation, properties, structure, and uses of ammonia, nitric acid, phosphine, and phosphorus halides, (PCl3. PCl5); Structures of oxides and oxoacids of nitrogen and phosphorus. Group -16 Preparation, properties, structures, and uses of ozone: Allotropic forms of sulphur; Preparation, properties, structures, and uses of sulphuric acid (including its industrial preparation); Structures of oxoacids of sulphur. Group-17 Preparation, properties, and uses of hydrochloric acid; Trends in the acidic nature of hydrogen halides; Structures of Interhalogen compounds and oxides and oxoacids of halogens. Group-18 Occurrence and uses of noble gases; Structures of fluorides and oxides of xenon. |
| Environmental Chemistry* | Environmental pollution Atmospheric pollution Tropospheric pollutants Particulate pollutants Water Pollution Soil pollution |
| Polymers* | General introduction and classification of polymers, general methods of polymerization, - Addition and condensation, copolymerization. Natural and synthetic, rubber and vulcanization, some important polymers with emphasis on their monomers and uses – polythene, nylon, polyester, and bakelite. |
| Biomolecules | - |
| Chemistry In Everyday Life* | Chemicals in Medicines Chemicals in food Cleansing Agents |
* Complete units have been Reduced from the JEE syllabus.
JEE Main Physics Reduced Syllabus
JEE Main Physics Reduced Syllabus 2025
JEE Main Physics Syllabus 2025 has undergone very few changes. Only one unit on ‘Communication Systems’ has been removed. All the other deleted portions are the different topics from other units/ chapters. NTA has, however, added a few topics under different chapters in JEE Main new physics syllabus 2025. Candidates can check the list of Reduced and added topics in JEE Main Physics Syllabus 2025 here.
| Units/ Chapters | Reduced Topics | |
|---|---|---|
| Physics And Measurement | Physics, technology, and society, accuracy and precision of measuring instruments | |
| Kinematics | zero vector | |
| Laws Of Motion | - | |
| Work, Energy, And Power | - | |
| Rotational Motion | - | |
| Gravitation | Orbital velocity of a satellite. Geo stationary satellites. | |
| Properties Of Solids And Liquid | Reynolds number, Newton's law of cooling. | |
| Thermodynamic | Carnot engine and its efficiency. | |
| Kinetic Theory Of Gase | Kinetic energy and temperature | |
| Oscillations And Wave | Free, forced and damped oscillations, resonance, Doppler Effect in sound | |
| Electrostatic | - | |
| Current Electricity | Resistances of different materials. Colour code for resistors; Electric Cell and its Potentiometer - principle and its applications. | |
| Magnetic Effects Of Current And Magnetism | Cyclotron, magnetic elements, Magnetic susceptibility and permeability. Hysteresis. Electromagnets and permanent magnets | |
| Electromagnetic Induction And Alternating Current | Quality factor | |
| Electromagnetic Wave | - | |
| Optics | Deviation and Dispersion of light by prism; Lens Formula. Resolving power of microscopes and astronomical telescopes. | |
| Dual Nature Of Matter And Radiation | Davisson-Germer experiment. | |
| Atoms And Nuclei | isotopes, isobars: isotones. Radioactivity- alpha. beta and gamma particles/rays and their properties; radioactive decay law. | |
| Electronic Device | Junction transistor, transistor action, characteristics of a transistor: transistor as an amplifier (common emitter configuration) and oscillator.Transistor as a switch. | |
| Communication Systems* | Propagation of electromagnetic waves in the atmosphere; Sky and space wave propagation. Need for modulation. Amplitude and Frequency Modulation, Bandwidth of signals. the bandwidth of the Transmission medium, Basic Elements of a Communication System (Block Diagram only). | |
| Experimental Skill | Plotting a cooling curve for the relationship between the temperature of a hot body and time. Potentiometer I. Comparison of emf of two primary cells. Ii. Determination of internal resistance of a cell. Transistor. IC. 20. Characteristic curves of a transistor and finding current gain and voltage gain. 22. Using a multimeter to: (i) Identify the base of a transistor (ii) Distinguish between NPN and PNP type transistors (iii) See the unidirectional current in case of a diode and an LED. (iv) Check the correctness or otherwise of a given electronic component (diode, transistor, or IC). |
* Complete units have been Reduced from the JEE syllabus.
JEE Main Maths Reduced Syllabus
JEE Main Maths Reduced Syllabus 2025
JEE Main Maths Syllabus 2025 has undergone the least changes. 2 chapters/ units have been Reduced completely from JEE Maths Syllabus 2025. Unlike Chemistry and Physics, no new topic has been added to JEE Maths syllabus. Candidates can check the list of Reduced chapters and topics from JEE Main Maths Syllabus 2025 here.
| Units/ Chapters | Reduced Topics |
|---|---|
| Complex Numbers and Quadratic Equations | square root of a complex number, triangle inequality |
| Matrices and Determinants | properties of determinants, elementary transformations |
| Mathematical Inductions* | Principle of Mathematical Induction and its simple applications. |
| Binomial Theorem and its Simple Applications | properties of Binomial coefficients |
| Sequence and Series | sum up to n terms of special series; Sn, Sn2, Sn3. Arithmetico-Geometric progression. |
| Limit, Continuity, and Differentiability | Rolle’s and Lagrange's Mean value Theorems, tangents and normal. |
| Integral Calculus | Integral as limit of a sum |
| Differential Equation | formation of differential equations |
| Co-Ordinate Geometry | translation of axes, Straight Line: equations of internal and external by sectors of angles between two lines, equation of the family of lines passing through the point of intersection of two lines. Circle, Conic section: condition for a line to be tangent to a circle, equation of the tangent, condition for Y = mx +c to be a tangent and point (s) of tangency. |
| 3-D Geometry | and a plane in different forms, the intersection of a line and a plane, coplanar lines. |
| Vector Algebra | scalar and vector triple product. |
| Statistics and Probability | Bernoulli trials, and binomial distribution. |
| Trigonometry | Trigonometrical equations, heights, and distance. |
| Mathematical Reasoning* | Statement logical operations and, or, implies, implied by, if and only if, understanding of tautology, contradiction, converse, and contrapositive. |
JEE Main 2025 Syllabus Old Syllabus Vs. New Syllabus
Mathematics
| Unit Name | Old Syllabus | New Syllabus |
|---|---|---|
| Sets, Relations and Functions | Sets and their representation: Union, intersection and complement of sets and their algebraic properties; Power set; Relation, Type of relations, equivalence relations, functions; one-one, into and onto functions, the composition of functions. | Same as Before |
| Complex Numbers and Quadratic Equation | Complex numbers as ordered pairs of reals, Representation of complex numbers in the form a + ib and their representation in a plane, Argand diagram, algebra of complex number, modulus and argument (or amplitude) of a complex number, square root of a complex number, triangle inequality, Quadratic equations in real and complex number system and their solutions Relations between roots and coefficient, nature of roots, the formation of quadratic equations with given roots. | Same as Before |
| Matrices and Determinants | Matrices, algebra of matrices, type of matrices, determinants and matrices of order two and three, properties of determinants, evaluation of determinants, area of triangles using determinants, Adjoint and evaluation of inverse of a square matrix using determinants and elementary transformations, Test of consistency and solution of simultaneous linear equations in two or three variables using determinants and matrices | Matrices, algebra of matrices, type of matrices, determinants, and matrices of order two andthree, evaluation of determinants, area of triangles using determinants, Adjoint, and evaluationof inverse of a square matrix using determinants and, Test of consistency and solution ofsimultaneous linear equations in two or three variables using matrices. N.B: Less focus on properties from determinants |
| Permutation and Combinations | The fundamental principle of counting, permutation as an arrangement and combination as section, Meaning of P (n,r) and C (n,r), simple applications. | The fundamental principle of counting, permutation as an arrangement and combination assection, Meaning of P (n,r) and C (n,r), simple applications. |
| Mathematical Inductions | Principle of Mathematical Induction and its simple applications. | Deleted whole chapter |
| Binomial Theorem and its Simple Applications | Binomial theorem for a positive integral index, general term and middle term, properties of Binomial coefficients and simple applications. | Binomial theorem for a positive integral index, general term and middle term, and simpleapplications. |
| Sequence and Series | Arithmetic and Geometric progressions, insertion of arithmetic, geometric means between two given numbers, Relation between A.M and G.M sum up to n terms of special series; Sn, Sn2, Sn3. Arithmetic Geometric progression, Harmonic Progression, Harmonic Mean | Arithmetic and Geometric progressions, insertion of arithmetic, geometric means between twogiven numbers, Relation between A.M and G.M. |
| Limit, Continuity and Differentiability | Real – valued functions, algebra of functions, polynomials, rational, trigonometric, logarithmic and exponential functions, inverse function. Graphs of simple functions. Limits, continuity and differentiability. Differentiation of the sum, difference, product and quotient of two functions. Differentiation of trigonometric, inverse trigonometric, logarithmic, exponential, composite and implicit functions; derivatives of order up to two, Rolle’s and Lagrange’s Mean value Theorems, Applications of derivatives: Rate of change of quantities, monotonic Increasing and decreasing functions, Maxima and minima of functions of one variable, tangents and normal. | Real–valued functions, algebra of functions, polynomials, rational, trigonometric, logarithmic,and exponential functions, inverse functions. Graphs of simple functions. Limits, continuity,and differentiability. Differentiation of the sum, difference, product, and quotient of twofunctions. Differentiation of trigonometric, inverse trigonometric, logarithmic, exponential,composite, and implicit functions; derivatives of order up to two, Applications of derivatives:Rate of change of quantities, monotonic-Increasing and decreasing functions, Maxima andminima of functions of one variable, |
| Integral Calculus | Integral as an antiderivative, Fundamental Integrals involving algebraic, trigonometric, exponential and logarithmic functions. Integrations by substitution, by parts and by partial functions. Integration using trigonometric identities. Evaluation of simple integrals. Integral as the limit of a sum. The fundamental theorem of calculus, properties of definite integrals. Evaluation of definite integrals, determining areas of the regions bounded by simple curves in standard form | Integral as an anti-derivative, Fundamental integral involving algebraic, trigonometric,exponential, and logarithmic functions. Integrations by substitution, by parts, and by partialfunctions. Integration using trigonometric identities. |
| Differential Equations | Ordinary differential equations, their order and degree, the formation of differential equations, solution of differential equation by the method of separation of variables, solution of a homogeneous and linear differential equation of the type | Ordinary differential equations, their order, and degree, the solution of differential equation bythe method of separation of variables, solution of a homogeneous and linear differentialequation of the type |
| Co-ordinate Geometry | Cartesian system of rectangular coordinates in a plane, distance formula, sections formula, locus and its equation, translation of axes, the slope of a line, parallel and perpendicular lines, intercepts of a line on the co-ordinate axis. | Same as Before |
| Straight line | Various forms of equations of a line, intersection of lines, angles between two lines, conditions for concurrence of three lines, the distance of a point form a line, equations of internal and external bi sectors, angles between two lines coordinate of the centroid, orthocentre and circumcentre of a triangle, equation of the family of lines passing through the point of intersection of two lines. | Various forms of equations of a line, intersection of lines, angles between two lines, conditionsfor concurrence of three lines, the distance of a point form a line, co-ordinate of the centroid,orthocentre, and circumcentre of a triangle, |
| Circles, conic sections | A standard form of equations of a circle, the general form of the equation of a circle, its radius and central, equation of a circle when the endpoints of a diameter are given, points of intersection of a line and a circle with the centre at the origin and condition for a line to be tangent to a circle, equation of the tangent, sections of conics, equations of conic sections (parabola, ellipse and hyperbola) in standard forms, condition for Y = mx +c to be a tangent and point (s) of tangency. | Same as Before |
| Three Dimensional Geometry | Coordinates of a point in space, the distance between two points, section formula, directions ratios and direction cosines, the angle between two intersecting lines. Skew lines, the shortest distance between them and its equation. Equations of a line and Equation of a plane in different forms, Family of planes, the intersection of a line and a plane, coplanar lines, | Coordinates of a point in space, the distance between two points, section formula, directionsratios, and direction cosines, and the angle between two intersecting lines. Skew lines, theshortest distance between them, and its equation. Equations of a line |
| Vector Algebra | Vectors and scalars, the addition of vectors, components of a vector in two dimensions and three-dimensional space, scalar and vector products, scalar and vector triple products. | Vectors and scalars, the addition of vectors, components of a vector in two dimensions and three-dimensional space, scalar and vector products, |
| Statistics and Probability | Measures of discretion; calculation of mean, median, mode of grouped and ungrouped data calculation of standard deviation, variance and mean deviation for grouped and ungrouped data. Probability: Probability of an event, addition and multiplication theorems of probability, Baye’s theorem, probability distribution of a random variate, Bernoulli trials and binomial distribution. | Same as Before |
| Trigonometry | Trigonometric identities and equations, trigonometric functions, inverse trigonometric functions and their properties, heights and distance, Bernoulli’s trial, Binomial distribution | Trigonometric identities and trigonometric functions, inverse trigonometric functions, and their properties, |
| Mathematical Reasoning | Statement logical operations and, or, implies, implied by, if and only if, understanding of tautology, contradiction, converse and contrapositive. | Deleted whole chapter |
Physics
| Unit Name | Old Syllabus | New Syllabus |
|---|---|---|
| Physics and Measurement | Physics, technology and society, S I Units, fundamental and derived units, least count, accuracy and precision of measuring instruments, Errors in measurement, Dimensions of Physics quantities, dimensional analysis and its applications | Units of measurements, System of Units, S I Units, fundamental and derived units, least count,significant figures, Errors in measurements, Dimensions of Physics quantities, dimensionalanalysis, and its applications. |
| Kinematics | The frame of reference, motion in a straight line, Position- time graph, speed and velocity; Uniform and non-uniform motion, average speed and instantaneous velocity, uniformly accelerated motion, velocity time, position-time graph, relations for uniformly accelerated motion, Scalars and Vectors, Vector. Addition and subtraction, zero vector, scalar and vector products, Unit Vector, Resolution of a Vector. Relative Velocity, Motion in a plane, Projectile Motion, Uniform Circular Motion | Same as Before |
| Laws of Motion | Force and inertia, Newton’s First law of motion; Momentum, Newton’s Second Law of motion, Impulses; Newton’s Third Law of motion. Law of conservation of linear momentum and its applications. Equilibrium of concurrent forces. Static and Kinetic friction, laws of friction, rolling friction. Dynamics of uniform circular motion: centripetal force and its applications. | Force and inertia, Newton’s First law of motion; Momentum, Newton’s Second Law of motion,Impulses; Newton’s Third Law of motion. Law of conservation of linear momentum and itsapplications. Equilibrium of concurrent forces.Static and Kinetic friction, laws of friction, rolling friction.Dynamics of uniform circular motion: centripetal force and its applications: vehicle on a levelcircular road, vehicle on a banked road.(Added) |
| Work, Energy and Power | Work done by a content force and a variable force; kinetic and potential energies, work energy theorem, power.The potential energy of spring conservation of mechanical energy, conservative and neoconservative forces; Elastic and inelastic collisions in one and two dimensions. | Same as Before |
| Rotational Motion | Centre of the mass of a two-particle system, Centre of the mass of a rigid body; Basic concepts of rotational motion; a moment of a force; torque, angular momentum, conservation of angular momentum and its applications; the moment of inertia, the radius of gyration. Values of moments of inertia for simple geometrical objects, parallel and perpendicular axes theorems and their applications. Rigid body rotation equations of rotational motion | Same as Before |
| Gravitation | The universal law of gravitation. Acceleration due to gravity and its variation with altitude and depth. Kepler’s law of planetary motion. Gravitational potential energy; gravitational potential. Escape velocity, Orbital velocity of a satellite. Geostationary satellites | Same as before |
| Properties of Solids and Liquids | Elastic behaviour, Stress-strain relationship, Hooke’s Law. Young’s modulus, bulk modulus, modulus of rigidity. Pressure due to a fluid column; Pascal’s law and its applications. Viscosity. Stokes’ law. terminal velocity, streamline and turbulent flow. Reynolds number. Bernoulli’s principle and its applications. Surface energy and surface tension, angle of contact, application of surface tension – drops, bubbles and capillary rise. Heat, temperature, thermal expansion; specific heat capacity, calorimetry; change of state, latent heat. Heat transfer-conduction, convection and radiation. Newton’s law of cooling | Except from Newton’s Law of cooling all the chapters are same |
| Thermodynamics | Thermal equilibrium, zeroth law of thermodynamics, the concept of temperature. Heat, work and internal energy. The first law of thermodynamics. The second law of thermodynamics: reversible and irreversible processes. Carnot engine and its efficiency | Thermal equilibrium, zeroth law of thermodynamics, the concept of temperature. Heat, work, and internal energy. The first law of thermodynamics, isothermal and adiabatic processes. The second law of thermodynamics: reversible and irreversible processes |
| Kinetics Theory of Gases | Equation of state of a perfect gas, work done on compressing a gas, Kinetic theory of gases – assumptions, the concept of pressure. Kinetic energy and temperature: RMS speed of gas molecules: Degrees of freedom. Law of equipartition of energy, applications to specific heat capacities of gases; Mean free path. Avogadro’s number | Same as Before |
| Oscillations and Waves | Periodic motion – period, frequency, displacement as a function of time. Periodic functions. Simple harmonic motion (S.H.M.) and its equation; phase: oscillations of a spring -restoring force and force constant: energy in S.H.M. – Kinetic and potential energies; Simple pendulum – derivation of expression for its time period: Free, forced and damped oscillations, resonance. Wave motion: Longitudinal and transverse waves, speed of a wave. Displacement relation for a progressive wave. Principle of superposition of waves, a reflection of waves. Standing waves in strings and organ pipes, fundamental mode and harmonics. Beats. Doppler Effect in sound | Oscillations and periodic motion – time period, frequency, displacement as a function of time. Periodic functions. Simple harmonic motion (S.H.M.) and its equation; phase: oscillations of a spring -restoring force and force constant: energy in S.H.M. - Kinetic and potential energies; Simple pendulum - derivation of expression for its time period. Wave motion: Longitudinal and transverse waves, speed of the travelling wave. Displacement relation for a progressive wave. Principle of superposition of waves, reflection of waves. Standing waves in strings and organ pipes, fundamental mode, and harmonics. Beats. |
| Electrostatics | Electric charges: Conservation of charge. Coulomb’s law-forces between two point charges, forces between multiple charges: superposition principle and continuous charge distribution. Electric field: Electric field due to a point charge, Electric field lines. Electric dipole, Electric field due to a dipole. Torque on a dipole in a uniform electric field. Electric flux: Gauss’s law and its applications to find field due to infinitely long uniformly charged straight wire, uniformly charged infinite plane sheet and uniformly charged thin spherical shell. Electric potential and its calculation for a point charge, electric dipole and system of charges; Equipotential surfaces, Electrical potential energy of a system of two point charges in an electrostatic field. Conductors and insulators: Dielectrics and electric polarisation, capacitor, the combination of capacitors in series and parallel, capacitance of a parallel plate capacitor with and without dielectric medium between the plates. Energy stored in a capacitor. | Same as Before |
| Current Electricity | Electric current. Drift velocity. Ohm’s law. Electrical resistance. Resistances of different materials. V-l characteristics of Ohmic and non-ohmic conductors. Electrical energy and power. Electrical resistivity. Colour code for resistors; Series and parallel combinations of resistors; Temperature dependence of resistance. Electric Cell and its Internal resistance, potential difference and emf of a cell, a combination of cells in series and parallel. Kirchhoff’s laws and their applications. Wheatstone bridge. Metre Bridge, Potentiometer: Principle and its applications | Electric current. Drift velocity, mobility, and their relation with electric current. Ohm's law.Electrical resistance. V-l characteristics of Ohmic and non-ohmic conductors. Electrical energyand power. Electrical resistivity and conductivity. Series and parallel combinations of resistors;Temperature dependence of resistance.Internal resistance, potential difference, and emf of a cell, a combination of cells in series andparallel. Kirchhoff’s laws and their applications. Wheatstone bridge. Metre Bridge. |
| Magnetic Effects of Current and Magnetism | Biot – Savart law and its application to the current carrying circular loop. Ampere’s law and its applications to infinitely long current carrying straight wire and solenoid. Force on a moving charge in uniform magnetic and electric fields. Cyclotron. Force on a current-carrying conductor in a uniform magnetic field. The force between two parallel current carrying conductors, definition of ampere. Torque experienced by a current loop in a uniform magnetic field: Moving coil galvanometer, its current sensitivity and conversion to ammeter and voltmeter. Current loop as a magnetic dipole and its magnetic dipole moment. Bar magnet as an equivalent solenoid, magnetic field lines; Earth’s magnetic field and magnetic elements. Para-, dia- and ferromagnetic substances. Magnetic susceptibility and permeability. Hysteresis. Electromagnets and permanent magnets. | Biot - Savart law and its application to the current carrying circular loop. Ampere's law and itsapplications to infinitely long current carrying straight wire and solenoid. Force on a movingcharge in uniform magnetic and electric fields.Force on a current-carrying conductor in a uniform magnetic field. The force between twoparallel currents carrying conductors-definition of ampere. Torque experienced by a currentloop in a uniform magnetic field: Moving coil galvanometer, its sensitivity, and conversion toammeter and voltmeter.Current loop as a magnetic dipole and its magnetic dipole moment. Bar magnet as an equivalentsolenoid, magnetic field lines; Magnetic field due to a magnetic dipole (bar magnet) along itsaxis and perpendicular to its axis. Torque on a magnetic dipole in a uniform magnetic field.Para-, dia- and ferromagnetic substances with examples, the effect of temperature on magnetic properties |
| Electromagnetic Induction and Alternating Currents | Electromagnetic induction: Faraday’s law. Induced emf and current: Lenz’s Law, Eddy currents. Self and mutual inductance. Alternating currents, peak and RMS value of alternating current/ voltage: reactance and impedance: LCR series circuit, resonance: Quality factor, power in AC circuits, wattless current. AC generator and transformer. | Same as Before |
| Electromagnetic Waves | Electromagnetic waves and their characteristics, Transverse nature of electromagnetic waves, Electromagnetic spectrum (radio waves, microwaves, infrared, visible, ultraviolet. X-rays. Gamma rays), Applications of e.m. waves. | Displacement current (Added), Electromagnetic waves and their characteristics, Transverse nature ofelectromagnetic waves, Electromagnetic spectrum (radio waves, microwaves, infrared, visible,ultraviolet. X-rays. Gamma rays), Applications of e.m. waves |
| Optics | Reflection and refraction of light at plane and spherical surfaces, mirror formula. Total internal reflection and its applications. Deviation and Dispersion of light by a; prism; Lens Formula. Magnification. Power of a Lens. Combination of thin lenses in contact. Microscope and Astronomical Telescope (reflecting and refracting ) and their magnifying powers. Wave optics: wavefront and Huygens’ principle. Laws of reflection and refraction using Huygens principle. Interference, Young’s double-slit experiment and expression for fringe width, coherent sources and sustained interference of light. Diffraction due to a single slit, width of central maximum. Resolving power of microscopes and astronomical telescopes. Polarization, plane-polarized light: Brewster’s law, uses of plane-polarized light and Polaroid. | Reflection of light, spherical mirrors, mirror formula. Refraction of light at plane and spherical surfaces, thin lens formula, and lens maker formula. Total internal reflection and its applications. Magnification. Power of a Lens. Combination of thin lenses in contact. Refraction of light through a prism. Microscope and Astronomical Telescope (reflecting and refracting ) and their magnifying powers. Wave optics: wavefront and Huygens' principle. Laws of reflection and refraction using Huygens principle. Interference, expression for fringe width, coherent sources, and sustained interference of light. Diffraction due to a single slit, width of central maximum. Polarization, plane-polarized light: Brewster's law, uses of planepolarized light and Polaroid. |
| Dual Nature of Matter and Radiation | Dual nature of radiation. Photoelectric effect. Hertz and Lenard’s observations; Einstein’s photoelectric equation: particle nature of light. Matter waves-wave nature of particles, de Broglie relation. Davisson-Germer experiment. | Dual nature of radiation. Photoelectric effect. Hertz and Lenard's observations; Einstein's photoelectric equation: particle nature of light. Matter waves-wave nature of particles, de Broglie relation. |
| Atoms and Nuclei | Alpha-particle scattering experiment; Rutherford’s model of atom; Bohr model, energy levels, hydrogen spectrum. Composition and size of nucleus, atomic masses, isotopes, isobars: isotones. Radioactivity- alpha. beta and gamma particles/rays and their properties; radioactive decay law. Mass-energy relation, mass defect; binding energy per nucleon and its variation with mass number, nuclear fission and fusion | Alpha-particle scattering experiment; Rutherford's model of atom; Bohr model, energy levels, hydrogen spectrum. Composition and size of nucleus, atomic masses, Mass-energy relation, mass defect; binding energy per nucleon and its variation with mass number, nuclear fission, and fusion. |
| Communication Systems | Propagation of electromagnetic waves in the atmosphere; Sky and space wave propagation. Need for modulation. Amplitude and Frequency Modulation, Bandwidth of signals. the bandwidth of Transmission medium, Basic Elements of a Communication System (Block Diagram only | Deleted |
| Electronic Devices | Semiconductors: semiconductor diode: 1V characteristics in forward and reverse bias; diode as a rectifier; I-V characteristics of LED. the photodiode, solar cell and Zener diode; Zener diode as a voltage regulator. Junction transistor, transistor action, characteristics of a transistor: transistor as an amplifier (common emitter configuration) and oscillator. Logic gates (OR. AND. NOT. NAND and NOR). Transistor as a switch. | Semiconductors; semiconductor diode: I-V characteristics in forward and reverse bias; diode as a rectifier; I-V characteristics of LED. the photodiode, solar cell, and Zener diode; Zener diode as a voltage regulator. Logic gates (OR. AND. NOT. NAND and NOR) |
| Experimental Skills | Vernier callipers-its use to measure the internal and external diameter and depth of a vessel.Screw gauge-it’s use to determine thickness/ diameter of thin sheet/wire.Simple Pendulum-dissipation of energy by plotting a graph between the square of amplitude and time.Metre Scale – the mass of a given object by principle of moments.Young’s modulus of elasticity of the material of a metallic wire.Surface tension of water by capillary rise and effect of detergents,Co-efficient of Viscosity of a given viscous liquid by measuring terminal velocity of a given spherical body,Plotting a cooling curve for the relationship between the temperature of a hot body and time.Speed of sound in air at room temperature using a resonance tube,Specific heat capacity of a given (i) solid and (ii) liquid by method of mixtures.The resistivity of the material of a given wire using metre bridge.The resistance of a given wire using Ohm’s law.Potentiometer-Comparison of emf of two primary cells.ii.Determination of internal resistance of a cell. Resistance and figure of merit of a galvanometer by half deflection method.The focal length of;(i) Convex mirror (ii) Concave mirror, and (iii) Convex lens, using the parallax method. The plot of the angle of deviation vs angle of incidence for a triangular prism.Refractive index of a glass slab using a travelling microscope.Characteristic curves of a p-n junction diode in forward and reverse bias.Characteristic curves of a Zener diode and finding reverse break down voltage.Characteristic curves of a transistor and finding current gain and voltage gain.Identification of Diode. LED, Transistor. IC. Resistor. A capacitor from a mixed collection of such items.Using a multimeter to:(i) Identify the base of a transistor (ii) Distinguish between NPN and PNP type transistor (iii) See the unidirectional current in case of a diode and an LED. (iv) Check the correctness or otherwise of a given electronic component (diode, transistor or IC). | Same as Before |
Chemistry
| Unit Name | Old Syllabus | New Syllabus |
|---|---|---|
| Section-A Physical Chemistry Some Basic Concepts in Chemistry | Matter and its nature, Dalton’s atomic theory: Concept of atom, molecule, element and compound: Physical quantities and their measurements in Chemistry, precision and accuracy, significant figures. S.I.Units, dimensional analysis: Laws of chemical combination; Atomic and molecular masses, mole concept, molar mass, percentage composition, empirical and molecular formulae: Chemical equations and stoichiometry. | 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 |
| States of Matter | Gaseous State, Liquid State and Solid State | Deleted |
| Atomic Structure | Thomson and Rutherford atomic models and their limitations; 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 and 2 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, extra stability of half-filled and completely filled orbitals. | Except Thomson and Rutherford atomic models and their limitations all the chapters have remained unchanged |
| Chemical Bonding and Molecular Structure | Kossel, Ionic BondingCovalent Bonding,Quantum mechanical approach to covalent bonding, Molecular Orbital Theory. | Same as Before |
| Chemical Thermodynamics | Fundamentals of thermodynamics, The first law of thermodynamics,The second law of thermodynamics | Same as Before |
| Solutions | Different methods for expressing the concentration of solution – molality, molarity, mole fraction, percentage (by volume and mass both), the 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 – a relative lowering of vapour pressure, depression of 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. | Same as Before |
| Equilibrium | Meaning of equilibrium, the concept of dynamic equilibrium. Equilibria involving physical processes, Equilibrium involving chemical processes, Ionic equilibrium | Same as Before |
| Redox Reactions and Electrochemistry | Electronic concepts of oxidation and reduction, redox reactions, oxidation number, rules for assigning oxidation number, 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. | Same as Before |
| 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, the effect of temperature on the rate of reactions, Arrhenius theory, activation energy and its calculation, collision theory of bimolecular gaseous reactions (no derivation). | Same as Before. But now this chapter will be given more weightage. |
| Surface Chemistry | Adsorption, Catalysis and Colloidal state | Deleted |
| Section-B Inorganic Chemistry | - | - |
| 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 of atomic and ionic radii, ionization enthalpy, electron gain enthalpy, valence, oxidation states and chemical reactivity. | Same as Before |
| General Principles and Processes of Isolation of Metals | Modes of occurrence of elements in nature, minerals, ores; Steps involved in the extraction of metals – concentration, reduction (chemical and electrolytic methods) and refining with special reference to the extraction of Al. Cu, Zn and Fe; Thermodynamic and electrochemical principles involved in the extraction of metals. | Deleted |
| Hydrogen | Position of hydrogen in periodic table, isotopes, preparation, properties and uses of hydrogen; Physical and chemical properties of water and heavy water; Structure, preparation, reactions and uses of hydrogen peroxide; Classification of hydrides – ionic, covalent and interstitial; Hydrogen as a fuel. | Deleted |
| S -Block Elements (Alkali and Alkaline Earth Metals) | Group -1 and 2 Elements General introduction, electronic configuration and general trends in physical and chemical properties of elements, anomalous properties of the first element of each group, diagonal relationships. Preparation and properties of some important compounds – sodium carbonate and sodium hydroxide and sodium hydrogen carbonate; Industrial uses of lime, limestone. Plaster of Paris and cement: Biological significance of Na, K. Mg and Ca. | Deleted |
| P- Block Elements | Group -13 to Group 18 Elements | Topics have not been deleted but the chapters weightage have been reduced |
| d- And f- Block Elements | Transition Elements, Inner Transition Elements | Same as Before |
| Co-Ordination Compounds | Introduction to co-ordination compounds. Werner’s theory; ligands, co-ordination 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). | Same as Before |
| Environmental Chemistry | Environmental pollution, Atmospheric pollution, Tropospheric pollution- Gaseous pollutants, Particulate pollutants, Stratospheric pollution, Water Pollution, Soil pollution | Deleted |
| Section-C Organic Chemistry | - | - |
| 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, phosphorus. Calculations of empirical formulae and molecular formulae: Numerical problems in organic quantitative analysis | Same as Before |
| Some Basic Principles Of Organic Chemistry | Tetravalency of carbon, Nomenclature (Trivial and IUPAC), Covalent bond fission, Electronic displacement in a covalent bond, Common types of organic reactions- Substitution, addition, elimination and rearrangement. | Same as Before |
| Hydrocarbons | Alkanes,Alkenes, Alkynes,Aromatic hydrocarbons, Friedel | Same as Before |
| 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. | Same as Before |
| Organic Compounds Containing Oxygen | General methods of preparation, properties, reactions and uses. | Same as Before |
| Alcohols, Phenols and Ethers | Alcohols,Phenols,Ethers, Aldehyde and Ketones | Same As Before |
| Carboxylic Acids | Acidic strength and factors affecting it | Same As Before |
| Organic Compounds Containing Nitrogen | General methods of preparation. Properties, reactions and uses, Amines, Diazonium Salts | Same as Before |
| Polymers | General introduction and classification of polymers, general methods of polymerization, – Addition and condensation, copolymerization. Natural and synthetic, rubber and vulcanization, some important polymers with emphasis on their monomers and uses – polythene, nylon, polyester and bakelite. | Deleted |
| Biomolecules | Carbohydrates, Proteins,Vitamins,Nucleic Acids | Same as Before |
| Chemistry In Everyday Life | Chemicals in Medicines, food and agents | Deleted |
| Principles Related To Practical Chemistry | Detection of extra elements, Mohr’s salt, potash alum, Organic compounds,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 4. Kinetic study of the reaction of iodide following experiments: ion with hydrogen peroxide at room temperature. Enthalpy of solution of CuSO4Enthalpy of neutralisation of strong acid and strong base. | Same as Before |
Merged Chapters in JEE Main 2025
Aspirants who wants to appear in JEE Main 2025 should check all the merged chapters
Physics: Electromagnetic Introduction, Optics and Alternating currents have been merged into a single chapter
Chemistry: P-block elements have been segregated into two chapters. One is ‘Group 13 to 17 Elements’. And the second chapter is ‘Group 18 Elements’.
Mathematics: Sets, Relations and Function has been divided into two chapters. Chapter one is Sets and Relations and Chapter two is functions. Moreover chapters like vectors, 3D Geometry and Linear Programming has been merged into one single chapter
JEE Main Preparation
JEE Main 2025 Preparation
Candidates begining their JEE Main 2025 preparation need to make sure that they follow the new JEE Main Syllabus 2025 pdf for their exam preparation and not spend time on chapters or topics that have been deleted from the syllabus. Here we have mentioned some of the preparation tips for JEE Mains exam.
- Understand the New JEE Mains Syllabus:The first step is to thoroughly understand the new JEE Main syllabus.This means knowing the chapters and topics that have been removed, added, or modified. You can download the official syllabus from the NTA JEE website, jeemain.nta.ac.in or can check the same in the article above.
- Prioritize Important Topics: Not all topics in JEE Mains syllabus carry equal weightage. It is important to prioritize the topics with higher weightage and focus your preparation on them. Check JEE Main Chapter wise Weightage
- Use the Right Study Materials: There are many different JEE Main study materials available in the market. It is important to choose the right study materials that are well-written, comprehensive, and up-to-date with the new syllabus. For this, candidates must refer to the latest NCERT books for Chemistry, Physics and Maths.
- Practice JEE Main Questions and Previous Years' Papers: One of the best ways to prepare for the exam is to solve practice questions and previous years' papers. This will help you understand the exam pattern and the types of questions asked in the exam. Solving previous year question papers will also help keep track of your exam prep level.
- Take Mock Tests Regularly: Taking mock tests regularly is a great way to assess your preparation and identify areas where you need to improve. It is important to take mock tests under timed conditions to simulate the real exam environment. Collegedunia has provided links to various JEE Main Online Test Series PDF for your exam preparation.
- Get help if you need it: If you are struggling with a particular topic, don't be afraid to ask for help from a teacher, tutor, or classmate.
Previous Year JEE Main Question Paper Download PDF
| Year | Question Paper Download |
|---|---|
| 2024 | JEE Main 2024 Question Paper PDF |
| 2023 | JEE Main 2023 Question Paper PDF |
| 2022 | JEE Main 2022 Question Paper PDF |
| 2021 | JEE Main 2021 Question Paper PDF |
| 2020 | JEE Main 2020 Question Paper PDF |
| 2019 | JEE Main 2019 Question Paper PDF |
| 2018 | JEE Main 2018 Question Paper PDF |
| 2017 | JEE Main 2017 Question Paper PDF |
| 2016 | JEE Main 2016 Question Paper PDF |
After the release of reduced JEE Main syllabus 2025, candidates need to equip themselves with the list of all removed chapters and topics in the new NTA JEE syllabus. Only after knowing the latest JEE Mains syllabus the students begin their exam preparation.
Frequently Asked Questions
Ques. When will the official reduced JEE Main syllabus 2025 pdf be released by NTA?
Ans. NTA has already released the JEE Main syllabus Reduced 2025 on the official website, jeemain.nta.ac.in. You can check the latest syllabus of JEE Mains 2025 through the official website. JEE Main syllabus 2025 pdf is also hosted on the official website of NTA i.e., nta.ac.in. JEE Main syllabus 2025 pdf download
Ques. How should I prepare for the revised JEE Main syllabus 2025
Ans. Since JEE Main syllabus Reduced 2025 has been released based on the rationalized NCERT books, you are advised to start your JEE Main preparation based on the new NCERT books. Once all the syllabus chapters and topics from the new NCERT have been covered you can move on to exemplars or old NCERT to assist with the study material. Solving JEE Main mock test and previous year question papers is a must during the last month of your preparation. You must make sure to solve 3-4 mock test or JEE Main PYQs every week. Check JEE Main previous year question papers with solutions pdf
Ques. What is the weightage of class 11 and 12 chapters in JEE Main syllabus 2025?
Ans. As per NTA JEE Main syllabus 2025 Reduced there is no specific weightage assigned to Class 11th and 12th chapters. However, based on JEE Main trend analysis and previous year question paper analysis, chapters from NCERT Class 11 account for an approximate 40% weightage and chapters from Class 12 account for a 60% weightage in the exam. Having said this, you need to study the whole syllabus released by the NTA in order to score good marks in the exam. You can plan to pay more attention to chapters with higher weightage in the exam. But preparing all the chapters is equally important to score good marks in the exam. Check JEE Main chapter wise weightage 2025
*The article might have information for the previous academic years, which will be updated soon subject to the notification issued by the University/College.
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