Joint Entrance Examination:

Joint Entrance Examination (JEE) is a national level engineering entrance examination conducted by the NTA (National Test Agency)  to offer admission to Btech/BE, BPlan, and BArch courses at the IIITs (Indian Institute of Information Technology), NITs (National Institute of Technology) and other CFTIs (Centrally Funded Technical Institutions) across the country. JEE examination is constituted by two different examinations - JEE Main and the JEE Advanced. JEE Mains is the first step for IIT aspirants to get admission in top IITs and other colleges across the country through JEE AdvancedJEE Mains is conducted twice a year(January and April). 

Eligibility Criteria for JEE Mains exam 2020:

  • Candidates who have passed class 12 or any other equivalent exam in 2018 or 2019 or those candidates who will be appearing in class 12 or any other equivalent examination in 2020 will be eligible to appear in JEE Mains 2020.
  • Those who have passed class 12 or equivalent examination in 2017 or before and those candidates who will appear in 2021 or later will not be eligible to appear in JEE Mains 2020.
  • Aspirants who have appeared for their class 12 in 2017, failed in 2017 but have appeared again in 2018 and passed are not eligible for JEE Mains 2020.

Education Qualification:

The applicant must have passed their 10+2 or equivalent examination on appearing for JEE Mains. Candidates who are appearing for their 10+2 exams can also apply for the JEE Mains exam.

Qualifying exam score for General Category: Minimum 75% in aggregate or be in the top 20 percentile in their 10+2 examination (For NITs, IIITs, and CFTIs admissions).

Qualifying exam score for SC/ST/PWD: Minimum 65% in aggregate (For NITs, IIITs and CFTIs admissions).

Mandatory Subjects for JEE Mains exam: B.Tech/ B.E (Physics, Mathematics, and Anyone of Chemistry, Biology, Computer Science, Information Technology, Business Studies, Engineering Graphics, Biotechnology, and Agriculture)B.Arch (Mathematics, Physics, and Chemistry), B.Plan (Mathematics).

Age Limit:

There is no age limit for appearing in the JEE Mains examination. The candidates who have passed class 12th/equivalent examination in 2018, 2019, or those who appear in 2020 irrespective of their age will be able to appear for the JEE Mains examination 2020.

The number of attempts in JEE Mains:

JEE Mains candidates can participate in the entrance exam for 3 consecutive years. The exam of JEE Mains is conducted twice a year and the candidates may appear in both the attempts and the attempt for an academic year will be considered as one. Therefore, the total number of attempts in JEE Mains for one candidate is six.

JEE Mains Participating Colleges:

31 NITs, 25 IIITs, and 28 CFTIs.

JEE Mains 2020 Eligibility Criteria for Droppers:

The term droppers can be classified into two categories. One, the candidates who have dropped a year after completing their class 12 to concentrate on the JEE Mains 2020 exam. Others consist of those who got admitted to another institute and wish to attempt again or did not qualify JEE Mains earlier and waited a year while preparation. Candidates need to check the JEE Mains 2020 Eligibility Criteria for Droppers to make sure that they will be able to appear the entrance exam without any problems.

  • There is no specific age limit.

  • To get admission in  NITs, IIITs and CFTIs, the candidates should have obtained a minimum of 75% aggregate marks or be in the top 20 percentile of their respective boards. For SC/ST category, at least 65% marks required.

  • The candidates must have passed their class 12 examination in 2018 or 2019. Only three consecutive attempts for JEE Mains are allowed.

  • He/She should have taken at least five subjects for the 12th class or qualifying exam (Physics, Chemistry, and Mathematics compulsory).

Exam Pattern of JEE Mains Exam 2020:

The pattern of the JEE Mains examination can be sub-divided into 2 categories – The paper I examination for students aspiring for higher studies in BE/B.TECH and paper II examination for students aspiring for higher studies in BArch./B Planning.

Type of questions: There will be two types of questions.

  • Objective (MCQs) and Numerical

  • Subjective – BArch (Drawing Paper)

Duration : 3 hours

Language of the exam: Hindi, English, and Gujarati (only for centers in Gujarat, Daman & Diu and Dadra and Nagar Haveli).

Marking scheme: 

  • Correct answer -  (+4)

  • Negative marking -  (-1)


Mode: Online

Time Limit: 3 hours.

Language: English / Hindi and Gujarati (for Gujarat region).


Number of Questions


25 (20 MCQ + 5 NVT)


25 (20 MCQ + 5 NVT)


25 (20 MCQ + 5 NVT)




Mode: Online and offline

Subjects: Mathematics (Part I), Aptitude Test (Part II), and Drawing test (Part III).


Number of Questions

Mathematics – Part I

25 (20 MCQ + 5 NAT)

Aptitude Test – Part 2

50 (MCQ)

Drawing Test – Part 3





Mode: Online

Subjects: Mathematics Part I, Aptitude Test Part II, and Planning part III.


Number of Questions

Mathematics – Part I

25 (20 MCQ + 5 NAT)

Aptitude Test – Part 2

50 (MCQ)

Planning Based Question





JEE Mains exam 2020 Syllabus:

NTA has published JEE Mains 2020 syllabus for Paper 1, 2, and 3 in online mode on the official website. This year, the authority has separated BPlan from BArch. The syllabus will help candidates to plan their studies accordingly.

Before starting with preparations, candidates must know the detailed syllabus. Going through the JEE Mains syllabus, students will know topics of every subject that are important from JEE Mains point of view.

JEE Mains 2020 Syllabus for Paper 1:

Detailed syllabus of Mathematics for JEE Mains 2020:





Sets, Relations, and Functions

  • Sets and their representation

  • Union, intersection, and complement of sets and their algebraic properties

  • Power set

  • Relation, Types of relations, equivalence relations, functions

  • One-one, into and onto functions, the composition of functions


Complex Number and Quadratic Equations

  • 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 numbers, modulus and argument (or amplitude) of a complex number, square root of a complex number.

  • Triangle inequality.

  • Quadratic equations in real and complex number systems and their solutions.

  • The relation between roots and coefficients, nature of roots, the formation of quadratic equations with given roots.


Matrices and Determinants

  • Algebra of matrices, types of matrices, and matrices of order two and three.

  • Properties of determinants, evaluation of determinants, the 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


Permutations and Combinations

  • The fundamental principle of counting.

  • Permutation as an arrangement and combination as a selection.

  • The meaning of P (n,r) and C (n,r). Simple applications.


Mathematical Induction

  • The principle of Mathematical Induction and its simple applications.


Binomial Theorem

  • Binomial theorem for a positive integral index.

  • General term and middle term.

  • Properties of Binomial coefficients and simple applications.


Sequences and Series

  • Arithmetic and Geometric progressions, insertion of arithmetic.

  • Geometric means between two given numbers.

  • The relation between A.M. and G.M.

  • Sum up to n terms of special series: Sn, Sn2, Sn3

  • Arithmetic – Geometric progression.


Limit, Continuity, and Differentiability

  • 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 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.

  • Rate of change of quantities, monotonic – increasing and decreasing functions, Maxima, and minima of functions of one variable, tangents, and normals


Integral Calculus

  • Integral as an antiderivative.

  • Fundamental integrals involving algebraic, trigonometric, exponential, and logarithmic functions.

  • Integration by substitution, by parts, and by partial fractions.

  • Integration using trigonometric identities.

  • Integral as limit of a sum.

  • Simple Integrals, Fundamental Theorem of Calculus.

  • Properties of definite integrals, evaluation of definite integrals,

  • Determining areas of the regions bounded by simple curves in standard form


Differential Equations

  • Ordinary differential equations, their order, and degree.

  • Formation of differential equations.

  • The solution of differential equations by the method of separation of variables.

  • The solution of homogeneous and linear differential equations of the type.


Coordinate Geometry

  • Cartesian system of rectangular coordinates in a plane, distance formula, section formula,

  • Locus and its equation, translation of axes, the slope of a line,

  • Parallel and perpendicular lines, intercepts of a line on the coordinate axes.

  • Straight lines

  • The distance of a point from a line, equations of internal and external bisectors of angles between two lines,

  • Coordinates of the centroid, orthocentre, and circumcentre of a triangle,

  • Equation of the family of lines passing through the point of intersection of two lines.

  • Circles, conic sections: Standard form of the equation of a circle, a general form of the equation of a circle, its radius, and center,

  • Equation of a circle when the endpoints of a diameter are given, points of intersection of a line and

  • Circle with the center at the origin and condition for a line to be tangent to a circle, equation of the tangent.

  • Sections of cones, 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.


Three Dimensional Geometry

  • Coordinates of a point in space, the distance between two points.

  • Section formula, direction ratios, and direction cosines, the angle between two intersecting lines.

  • Skew lines, the shortest distance between them and their equation.

  • Equations of a line and a plane in different forms, the intersection of a line and a plane, coplanar lines.


Vector Algebra

  • Vectors and scalar

  • Components of a vector in two dimensions and three-dimensional space.

  • Scalar and vector products


Statistics and Probability

  • Measures of Dispersion

  • 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,

  • Bayes theorem, the probability distribution of a random variate,

  • Bernoulli trials and Binomial distribution.



  • Trigonometric identities and equations.

  • Trigonometric functions.

  • Inverse trigonometric functions and their properties.

  • Heights and Distances


Mathematical Reasoning

  • Statements, logical operations, and, or, implies, implied by, if and only if.

  • Understanding of tautology, contradiction, converse, and contrapositive

Weightage of JEE Mains Mathematics Syllabus 2020:

The JEE Mains Syllabus for Mathematics is the same for Paper 1, Paper 2, and Paper 3.

The weightage for the Mathematics paper of JEE Mains examination 2020 have been given below-

Maths Important Topics

The weightage (%)

Complex Numbers


Coordinate Geometry


Differential & Integral Calculus


Fundamentals of Mathematics








Vector & 3D


Detailed syllabus of Physics for JEE Mains 2020:





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 Physical quantities, dimensional analysis, and its applications



  • 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 graphs, 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


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 is done by a constant force and a variable force; kinetic and potential energies, Work-Energy theorem

  • Power

  • The potential energy of a spring, conservation of mechanical energy, conservative and nonconservative forces;

  • Elastic and inelastic collisions in one and two dimensions.


Rotational Motion

  • Centre of the mass of a two-particle system, Centre of the 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



  • 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. Geostationary satellites.


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



  • 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


Kinetic 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


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;

  • The 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, Reflection of waves, Standing waves in strings and organ pipes

  • Fundamental mode and harmonics, Beats, Doppler effect in sound



  • 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, a combination of capacitors in series and in parallel,

  • The 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,

  • Resistances of different materials, V-I 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, combination of cells in series and in parallel

  • Kirchhoff’s laws and their applications

  • Wheatstone bridge, Metre bridge

  • Potentiometer – principle and its applications.


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 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 an 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.


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.


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.



  • 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,

  • 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 the particle, de Broglie relation.

  • Davis son-Germer experiment.


Atoms and Nuclei

  • Alpha-particle scattering experiment

  • Rutherford’s model of the atom

  • Bohr model, energy levels, hydrogen spectrum

  • Composition and size of the nucleus, atomic masses, isotopes, isobars, and 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.


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

  • 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


Communication Systems

  • Propagation of electromagnetic waves in the atmosphere

  • Sky and space wave propagation, Need for modulation,

  • Amplitude and Frequency Modulation, Bandwidth of signals,

  • Bandwidth of Transmission medium,

  • Basic Elements of a Communication System (Block Diagram only).

Weightage of JEE Mains Physics Syllabus 2020:

The weightage for the Physics paper of JEE Mains examination 2020 have been given below-

Physics Important Topics

The weightage (%)



Heat & Thermodynamics




Modern Physics




SHM & Waves


Detailed syllabus of Chemistry for JEE Mains 2020:

Section A – Physical Chemistry

The following section caters to the entire Chemistry Syllabus for JEE Mains 2020-





Some Basic Concepts of Chemistry

  • Matter and its nature

  • Dalton’s Atomic Theory

  • Concept of atom, molecule, element, and compound

  • Physical Quantities, SI Units, Atomic and molecular mass

  • Laws of Chemical Combination, Chemical Equation, and Stoichiometry


States of Matter

  • Gaseous State – Measurable properties, Gas Laws, Kinetic theory of gases, Ideal Gas Equation, Van der Waals Equation and more

  • Liquid State – Properties of liquids Vapor pressure, viscosity and surface tension, and effect of temperature on them (qualitative treatment only)

  • Solid State – Classification; Bragg’s Law; Unit cell and lattices; Electrical and Magnetic Properties


Atomic Structure

  • Thomson and Rutherford Atomic Models

  • Bohr Model of Hydrogen atom

  • Dual Nature of Matter, De-Broglie Relationship, Heisenberg Uncertainty Principle

  • Pauli’s Exclusion Principle and Hund’s Rule

  • Shapes of s, p, and d orbitals


Chemical Bonding and molecular structure

  • Kossel – Lewis Approach to Chemical Bond Formation

  • Ionic Bonding

  • Covalent Bonding

  • Quantum Mechanical Approach to Covalent Bonding

  • Molecular Orbital Theory


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, etc.

  • Second Law of Thermodynamics – Spontaneity of Processes;

  • ∆S of the universe and ∆G as the criteria for spontaneity



  • 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 no ideal solutions, vapor pressure

  • Colligative properties of dilute solutions,

  • Relative lowering of vapor 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 Hoff Factor and its significance



  • Meaning of Equilibrium, Concept of dynamic equilibrium

  • Equilibria involving Physical Processes – Law of Chemical Equilibrium,

  • Equilibrium constants (Kp and Kc) and their significance,

  • Significance of ∆G and ∆G° in chemical equilibria,

  • Factors affecting equilibrium concentrations, pressure, temperature effect of catalyst;

  • Le Chatelier’s principle.

  • Equilibria involving Physical Processes – solid-liquid, liquid-gas, and solid-gas equilibria,

  • Henry’s Law, General characteristics of equilibrium involving physical processes.

  • 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 multi-stage ionization) and ionization constants,

  • Ionization of water, pH scale, common ion effect,

  • Hydrolysis of salts and pH of their solutions, the solubility of sparingly soluble salts and solubility products, and buffer solutions.


Redox Reactions and Electrochemistry

  • Electrical concepts of oxidation and reductions, 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,

  • Koulrausch’s Law and its applications

  • Electrochemical Cells – Electrolytic and Galvanic Cells, different types of electrodes, electrode potentials,

  • Half-cell and cell reactions, emf of a galvanic cell and its measurement

  • Nernst equation and its applications


Chemical Kinetics

  • Rate of a chemical reaction, factors affecting the rate of reactions

  • 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).


Surface Chemistry

  • Adsorption: Physisorption and chemisorption and their characteristics,

  • Factors affecting the 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.

  • Multimolecular, macromolecular and associated colloids (micelles), preparation and properties of colloids

  • Tyndall effect, Brownian movement, electrophoresis, dialysis, coagulation, and flocculation.

  • Emulsions and their characteristics.

Section B – Inorganic Chemistry

Given below are chapters and topics from Inorganic Chemistry for JEE Mains 2020. A major focus is on the Periodic table and its elements.





Classification of elements and periodicity in properties

  • Modern periodic law and present form of the periodic table.

  • s, p, d, and f block elements.

  • Periodic trends in properties of elements atomic and ionic radii, ionization enthalpy.

  • Electrons gain enthalpy, valence, oxidation states, and chemical reactivity.


General Principles and processes of isolation of metals

  • Steps involved in the extraction of metals

  • Concentration, reduction (chemical and electrolytic methods), and refining

  • Special reference to the extraction of Al, Cu, Zn, and Fe.

  • Modes of occurrence of elements in nature, minerals, ores.

  • Thermodynamic and electrochemical principles involved in the extraction of metals.



  • The position of hydrogen in periodic table, isotopes, preparation, properties, and uses of hydrogen.

  • Structure, preparation, reactions, and uses of hydrogen peroxide.

  • Physical and chemical properties of water and heavy water.

  • Hydrogen as a fuel

  • Classification of hydrides: ionic, covalent, and interstitial.


S-Block Elements (Alkali and Alkali Earth Metals)

  • Group 1 and Group 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, sodium chloride, sodium hydroxide, and sodium hydrogen carbonate.

  • Industrial uses of lime, limestone, Plaster of Paris, and cement.

  • The biological significance of Na, K, Mg and Ca.


P-Block Elements

  • Group 13

  • Preparations and properties of Boron and aluminum;

  • Structure, properties, and uses of borax, boric acid, diborane, boron trifluoride, aluminum chloride, 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;

  • Allotropic forms of Phosphorus;

  • Preparation, properties, structure, and uses of ammonia, nitric acid, phosphine halides, (PCLჳ, PCLཏ);

  • Structures of oxides and oxoacids of nitrogen and phosphorus

  • Group 16

  • Preparation, properties, structures, and uses of ozone;

  • Allotropic forms of sulfur;

  • Preparation, properties, structure, and uses of sulphuric acid (including its industrial preparation);

  • Structures of oxoacids of sulfur

  • Group 17

  • Preparation, properties, and uses of hydrochloric acid;

  • Trends in the acidic nature of hydrogen halides;

  • Structure of interhalogen compounds and oxides and oxoacids of halogens

  • Group 18

  • Occurrence and uses of noble gases;

  • Structures of Fluorides and oxides of xenon


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, color, catalytic behavior, magnetic properties,

  • Complex formation, interstitial compounds, alloy formation.

  • Preparation, properties, and uses of K2Cr2O7 and KMnO4.

  • Inner Transition Elements: Lanthanides, Electronic configuration, oxidation states, chemical reactivity, and lanthanide contraction, and

  • Actinoids: Electronic configuration and oxidation states.


Coordination Compounds

  • Introduction to coordination compounds,

  • Werner’s theory.

  • ligands, coordination number, denticity, chelation.

  • IUPAC nomenclature of mononuclear coordination compounds, isomerism.

  • Bonding-Valence bond approach

  • Basic ideas of Crystal field theory, colour, and magnetic properties.

  • Importance of coordination compounds (in qualitative analysis, extraction of metals, and in biological systems).


Environmental Chemistry

  • Environmental pollution: Atmospheric, water, and soil.

  • Atmospheric pollution: Tropospheric and stratospheric.

  • Gaseous pollutants: Oxides of carbon, nitrogen, and sulfur, hydrocarbons;

  • Their sources, harmful effects, and prevention.

  • Greenhouse effect and Global warming, acid rain.

  • Particulate pollutants: Smoke, dust, smog, fumes, mist;

  • Their sources, harmful effects, and prevention.

  • Stratospheric pollution: Formation and breakdown of ozone, depletion of the ozone layer, its mechanism, and effects.

  • Water Pollution: Major pollutants such as pathogens, organic wastes, and chemical pollutants;

  • Their harmful effects and prevention.

  • Soil pollution: Major pollutants such as Pesticides (insecticides, herbicides, and fungicides)

  • Their harmful effects and prevention.

  • Strategies to control environmental pollution.

Section C – Organic Chemistry

The organic Chemistry Syllabus for JEE Mains 2020 is given below. All chapters in Organic Chemistry are important. Hydrocarbons and Organic compounds usually carry a very high weightage in 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, sulfur, phosphorus, and halogens.

  • Quantitative Analysis (basic principles only) –

  • Estimation of carbon, hydrogen, nitrogens, halogens, sulfur, and phosphorus

  • Calculations of Empirical and Molecular Formulae;

  • 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: -C = C- and those containing halogens, oxygen, nitrogen, and sulfur;

  • Homologous series.

  • Isomerism – structural and stereoisomerism

  • Nomenclature – 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 directions: Substitution, addition, elimination, and rearrangement.



  • 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, oxidation, and polymerization.

  • Alkynes – Acidic character;

  • Addition of hydrogen, halogens, water, and hydrogen halides;

  • Polymerization.

  • Aromatic Hydrocarbons – Nomenclature, Benzene Structure, and Atomicity

  • Mechanism of electrophilic substitution – halogenation, nitration,

  • Friedel Crafts alkylation and acylation,

  • Directive influence of the functional group in monosubstituted 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

  • Alcohol – Identification of primary, secondary and tertiary alcohols;

  • Mechanism of dehydration.

  • Phenols – Acidic nature, electrophilic substitution reactions

  • Halogenation, nitration, and sulphonation,

  • Reimer Tiemann reaction.

  • Ethers – Structures

  • Aldehyde and Ketones – Nature of carbonyl group;

  • Nucleophilic addition to >C=O group

  • Relative reactivities of aldehydes and ketones

  • Important reactions such as Nucleophilic addition reactions (addition of HCN, NH3 and its derivatives), Grignard reagent;

  • Oxidation; reduction (Wolff Kishner and Clemmensen);

  • The acidity of hydrogen, aldol condensation, Cannizzaro reaction, Haloform reaction.

  • Chemical Tests to distinguish between aldehydes and ketones.

  • Carboxylic Acid – 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.



  • General Introduction and classification of polymers,

  • General methods of polymerization, addition and condensation, co-polymerization

  • Natural and synthetic rubber and vulcanization

  • Some important polymers with emphasis on monomers and uses

  • Polyethene, nylon, polyester, and bakelite.



  • General Introduction and importance of biomolecules

  • Carbohydrates – Classification: aldoses and ketoses;

  • Monosaccharides (glucose and fructose), constituent monosaccharides or oligosaccharides (sucrose, lactose, maltose), and polysaccharides (starch, cellulose, glycogen).

  • Proteins – Elementary Idea of amino acids, peptide bond, polypeptides;

  • Proteins: primary, secondary, tertiary, and quaternary structure (qualitative idea only), denaturation of proteins, enzymes.

  • Vitamins – Classification and Functions

  • B Chemical Constitution of DNA and RNA, Biological Functions of Nuclei Acids


Chemistry in Everyday life

  • Chemicals in medicines: Analgesics, tranquilizers, antiseptics, disinfectants, antimicrobials,

  • Antifertility drugs, antibiotics, antacids, antihistamines, their meaning, and common examples.

  • Chemicals in food: Preservatives, artificial sweetening agents common examples.

  • Cleansing Agents – Soaps and detergents, cleansing action


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.

  • The chemistry involved in the preparation of the following:

  • Inorganic compounds

  • Mohr’s salt, potash alum, and Organic compounds

  • Acetanilide, p-nitro acetanilide, aniline yellow, iodoform.

  • The chemistry involved in the titrimetric exercises: Acids bases and the use of indicators,

  • Oxalic-acid vs KMnO4,

  • Mohr’s salt vs KMnO4.

  • Chemical principles involved in the qualitative salt analysis:

  • Cations: Pb2+, Cu2+, AI3+, Fe3+, Zn2+, Ni2+, Ca2+, Ba2+, Mg2+, NH4+, and

  • Anions: CO32-, S2-, SO42-, NO2-, NO3-, CI-, Br, I. (Insoluble salts excluded).

  • Chemical principles involved in the following experiments: Enthalpy of solution of CuSO4, Enthalpy of neutralization of strong acid and strong base,

  • Preparation of lyophilic and lyophobic sols, and Kinetic study of the reaction of iodide ion with hydrogen peroxide at room temperature.

Weightage of JEE Mains Chemistry Syllabus 2020:

The weightage for the Chemistry paper of JEE Mains examination 2020 have been given below-

Chemistry Important Topics

The weightage (%)

Inorganic Chemistry


Organic Chemistry


Physical Chemistry


JEE Main exam 2020 Syllabus for B.Arch and B.Plan:

  • Below is the syllabus for the aspirants who are appearing for the paper 2 of JEE Mains.

  • Aptitude section is included in both Paper 2 and Paper 3 of the JEE Mains.

Mathematics Syllabus: It is the same as that for JEE Mains 2020 Paper 1, which is given above.

Aptitude Test Syllabus: Part 1

  • Awareness of places, persons, buildings, and materials/objects.

  • Texture and objects related to Architecture and building environment.

  • Visualizing three-dimensional objects from two-dimensional drawings.

  • Visualizing different sides of three-dimensional objects.

  • Analytical Reasoning Mental Ability (Visual, Numerical, and Verbal)

Aptitude Test Syllabus: Part 2

  • Three dimensional – perception: Understanding and appreciation of scale and proportion of objects, building forms, and elements, color texture, harmony, and contrast.

  • Design and drawing of geometrical or abstract shapes and patterns in pencil.

  • Transformation of forms both 2D and 3D union, subtraction, rotation, development of surfaces and volumes, Generation of Plan, elevations, and 3 D views of objects.

JEE Mains exam 2020 Drawing Test Syllabus:

Drawing is included in Paper 2 of the JEE Mains examination. Few topics which are important for the JEE Mains Drawing Test are:

  • Drawing abstract shapes and geometric patterns in pen and paper.

  • Transformation of figures from 2D to 3D or vice-versa

  • Elevation of object rotation

  • Designing memory of urban scenes

  • Generation of plan

  • 3D view of an object, rotation

JEE Mains exam 2020 Planning-based Test Syllabus:

Questions based on Planning will be a part of Paper 3 i.e. B. Planning only in JEE Main 2020. This is a new section introduced for students along with a completely new paper. There has been no clear data for Planning-based questions and students are still clueless about it. As per the sample questions provided on the official website of JEE Main 2020, it is implied that questions from the Planning section will be from the following topics-

  • General Awareness – Government programs/schemes, development issues, current affairs related to rural and urban development programs, etc.

  • Critical thinking, Analytical skills, Map reading skills, Graphs, Charts, Basic Statistics, etc.

  • Social Sciences – Geography, History, Political Science, Economics