JEE Main Paper 1 Syllabus 2025 - Detailed PDFs for Maths, Physics, Chemistry

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Section A – Physical Chemistry

Some Basic Concepts in Chemistry

Matter and its nature, Dalton's atomic theory; the concept of the 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.

Atomic Structure

nature of electromagnetic radiation, photoelectric effect; spectrum of hydrogen atom, Bohr model of hydrogen atom - its postulates, derivation of the relations for 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 mechanical model of atom, its important features, concept of atomic orbitals as one electron wave functions; variation of t|/ and \|/2 with r for Is 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 filled orbitals.

Chemical Bonding and Molecular Structure

Kossel - Lewis approach to chemical bond formation, 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, 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, concept of bond order, bond length and bond energy, elementary idea of metallic bonding, hydrogen bonding and its applications.

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 solution.

Second law of thermodynamics: spontaneity of processes; AS of the universe and AG of the system as criteria for spontaneity, AG" (Standard Gibbs energy change) and equilibrium constant.

Solutions

Different methods for expressing concentration of solution - molality, molarity, mole fraction, percentage (by volume and mass both), 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 - relative lowering of vapour pressure, depression of freezing point, 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.

Equilibrium

Meaning of equilibrium, 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.

Equilibria involving chemical processes: law of chemical equilibrium, equilibrium constants (Kp and Kc) and their significance, significance of AG and AG" in chemical equilibria, 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 of water, pH scale, common ion effect, hydrolysis of salts and pH of their solutions, solubility of sparingly soluble salts and solubility products, buffer solutions.

Redox Reactions and Electro-chemistry

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.

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, effect of temperature on rate of reactions -Arrhenius theory, activation energy and its calculation, collision theory of bimolecular gaseous reactions (no derivation).

Section B – Inorganic Chemistry

Classification of Elements and Periodicity in Properties

Modem 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.

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 behaviour of the first element in each group.

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 K2 Cr, O7 and KmnO4.

Inner Transition Elements

Lanthanoids - electronic configuration, oxidation states and lanthanoid contraction.

Actinoids - electronic configuration and oxidation states.

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).

Section C – Organic Chemistry

Purification and Characterization 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 formula and molecular formula; numerical problems in organic quantitative analysis.

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, oxygen, 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 effect, resonance and hyperconjugation.

Common types of organic reactions- substitution, addition, elimination and rearrangement.

Hydrocarbons

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

Alkanes - Conformations: sawhorse and newman projections of ethane; mechanism of halogenation of alkanes.

Alkenes - geometrical isomerism; mechanism of electrophilic addition: addition of hydrogen, halogens, water, hydrogen halides (Markownikoff s 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, Friedel - Craft's alkylation and acylation, directive influence of functional group in mono-substituted benzene.

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.

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, Reitner - Tiemann reaction.

Ethers: structure.

Aldehyde and Ketones: Nature of carbonyl group; nucleophilic addition to >C=0 group, relative reactivities of aldehydes and ketones; Important reactions such as - nucleophilic addition reactions (addition of HCN, NH, and its derivatives), Grignard reagent; oxidation; reduction (Wolff Kishner and Clemmensen); 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.

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.

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.

Principles Related to Practical Chemistry

Detection of extra elements (N,S, halogens) in organic compounds; detection of the following functional groups: hydroxyl (alcoholic and phenolic), carbonyl (aldehyde and ketone), carboxyl and amino groups in organic compounds.

• Chemistry involved in the preparation of the following:

Inorganic compounds: Mohr's salt, potash alum. Organic compounds: acetanilide, p nitroacetanilide, aniline yellow, iodoform.

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

•Chemical principles involved in the qualitative salt analysis:

Cations - Pb2+, Cu!+, Af,+, Fe1+, Zn2+, Ni2+, Ca2+, Ba2+,

Mg2+, nh;.

Anions- CO,", S2~, SO4", NO", NO~2, Cf, 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 ion with hydrogen peroxide at room temperature.

Atomic Structure

Thomson and Rutherford atomic models and their limitations;

States of matter

Surface chemistry

P-block elements

Groupwise study of the p - block elements Group -13

Preparation, properties and uses of boron and aluminium; structure, properties and uses of borax, boric acid, diborane, boron trifluoride, aluminium chloride and alums.

Group -14

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; allotropic forms of phosphorus; Preparation, properties, structure and uses of ammonia, nitric acid, phosphine and phosphorus halides, (PC13, PCI,); 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.

General Principles and Processes of Isolation of Metals

Hydrogen

S -Block Elements (Alkali and Alkaline Earth Metals)

Environmental Chemistry

Polymers

The whole chapter is removed

Units

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Section A

Physics and Measurement

SI units, fundamental and derived units.

Least count, Errors in measurement, dimensions of physical quantities, dimensional analysis and its applications,

Kinematics

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 graphs, relations for uniformly accelerated motion. Scalars and vectors, vector addition and subtraction, scalar and vector products, unit vector, resolution of a vector. Relative velocity, motion in a plane, projectile motion, uniform circular motion.

Laws of Motion

Force and Inertia, Newton's first law of motion; momentum, Newton's Second Law of motion; impulse; 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

Work, Energy and Power

Work done by a constant force and a variable force; kinetic and potential energies, work-energy theorem, power.

Potential energy of a spring, conservation of mechanical energy, conservative and non-conservative forces; elastic and inelastic collisions in one and two dimensions.

Rotational Motion

Centre of mass of a two-particle system, centre of mass of a rigid body; basic concepts of rotational motion; moment of a force, torque, angular momentum, conservation of angular momentum and its applications; moment of inertia, 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.

Gravitation

The universal law of gravitation. Acceleration due to gravity and its variation with altitude and depth, kepler's laws of planetary motion, gravitational potential energy; gravitational potential, escape velocity, orbital velocity of a satellite,

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,

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,

Thermodynamics

Thermal equilibrium, zeroth law of thermodynamics, concept of temperature, heat, work and internal energy.

First law of thermodynamics, second law of thermodynamics: reversible and irreversible processes,

Kinetic Theory of Gases

Equation of state of a perfect gas, work done on compressing a gas.

Kinetic theory of gases-assumptions, 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.

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;

Wave motion. Longitudinal and transverse waves, speed of a 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 polarization, capacitor, combination of capacitors in series and in parallel, capacitance of a parallel plate capacitor with and without dielectric medium between the plates, energy stored in a capacitor.

Current Electricity

Electric current, drift velocity, ohm's law, electrical resistance,

V-I characteristics of ohmic and non-ohmic conductors, electrical energy and power, electrical resistivity, series and parallel combinations of resistors; temperature dependence of resistance.

Electric Cell and its internal resistance, potential difference and emf of a cell, combination of cells in series and in parallel. Kirchhoff's laws and their applications, wheatstone bridge, metre bridge,

Magnetic Effects of Current and Magnetism

Biot - Savart law and its application to 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 a uniform magnetic and electric fields,

Force on a current-carrying conductor in a uniform magnetic field, force between two parallel current-carrying conductors-definition of ampere, torque experienced by a current loop in 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,para-, dia- and ferro- magnetic substances,

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; power in AC circuits, wattless current. AC generator and transformer.

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.

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,polarisation, plane polarized light; Brewster's law, uses of plane polarized light and Polaroids.

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 particle, 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, mass-energy relation, mass defect; binding energy per nucleon and its variation with mass number, nuclear fission and fusion.

Electronic Devices

Semiconductors; semiconductor diode: I-V characteristics in forward and reverse bias; diode as a rectifier; 1-V characteristics of LED, photodiode, solar cell and Zener diode; Zener diode as a voltage regulator,

Logic gates (OR, AND, NOT, NAND and NOR),

Experimental Skills

Familiarity with basic approach and observations of experiments and activities:

• Vernier callipers-its use to measure internal and external diameter and depth of a vessel.

• Screw gauge-its use to determine thickness/ diameter of thin sheet/wire.

• Simple Pendulum-dissipation of energy by plotting a graph between square of amplitude and time.

• Metre Scale-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.

• Coefficient 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.

• Resistivity of the material of a given wire using metre bridge.

• Resistance of a given wire using Ohm's law.

• Potentiometer-

• Comparison of emf of two primary cells.

• Determination of internal resistance of a cell.

• Resistance and figure of merit of a galvanometer by half deflection method,

• Focal length of the following using parallax method:

• Convex mirror

• Concave mirror, and

• Convex lens

• Plot of angle of deviation vs angle of incidence for a triangular prism.

• Refractive index of a glass slab using a traveling microscope.

• Characteristic curves of a p-n junction diode in forward and reverse bias.

• Characteristic curves of a Zener diode and finding reverse breakdown voltage.

• Characteristic curves of a transistor and finding current gain and voltage gain.

• Identification of Diode, LED, Transistor, IC, Resistor, and Capacitor from a mixed collection of such items.

• Using a multimeter to:

• Identify the base of a transistor

• Distinguish between npn and pnp type transistor

• See the unidirectional flow of current in case of a diode and an LED.

• Check the correctness or otherwise of a given electronic component (diode, transistor or IC).

Physics and Measurement

Physics, technology and society, accuracy and precision of measuring instruments,

Kinematics

Zero vector

Geo-stationary satellites.

Properties of Solids and Liquids

Thermodynamics

carnot engine and its efficiency.

Oscillations and Waves

Current Electricity

resistances of different materials, colour code for resistors; potentiometer - principle and its applications.

Magnetic Effects of Current and Magnetism

Electromagnetic Induction and Alternating Currents

Optics

Dual Nature of Matter and Radiation

Davisson-Germer experiment.

Atoms and Nuclei

Communication Systems

Electronic Devices