What is JEE Mains? & Why JEE Mains?
JEE Mains(Joint Entrance Examination) is an Engineering Entrance examination for admission into Undergraduate Engineering Programs at NITs, IIITs, Other Centrally Funded Technical Institutions, Institutions funded by participating State Governments and other Institutions. The Paper1 (B. E./B. Tech.) of JEE (Main) will also be considered for JEE (Advanced), which the candidate should appear for getting admitted into the undergraduate programmes offered by the IITs.
Eligibility for appearing in JEE (Main)  2020
Date of Birth:
For appearing in the JEE (Main) examination there is no age limit for the candidates. The candidates who have passed XII examination in 2018, 2019 or appearing in 2020 irrespective of their age can appear in JEE (Main) Examination  2020 and the candidate must passed/appearing with Physics and Mathematics as compulsory subjects along with one of the Chemistry/Biotechnology/Biology/ Technical Vocational subject.
Year of Appearance in Qualifying Examination:
Only those candidates who have passed their Class 12th Exam or any equivalent qualifying examination in 2019 or 2020; or those who are appearing in their Class 12th Exam or any equivalent qualifying examination in 2020 are eligible to appear in both January, 2020 and April, 2020 JEE (Main)2020 Examination.
Number of subjects in the Qualifying Examination:
Candidates must have taken at least five subjects in class 12th/ qualifying examination in order to be eligible for writing JEE (Main)  2020.
For the candidates to qualify for the admission in the IITs/NITs/IIITs and such other GFTIs whose admissions are based on the JEE (Advanced)/JEE (Main) ranks, they should have secured at least 75% marks in the 12th class examination, or be in the top 20 percentile in the 12th class examination conducted by the respective Boards. For SC/ST students the qualifying marks would be 65% in the 12th class examination.
State of Eligibility:
State code of eligibility means the code of the State from where the candidate has passed Class XII (or equivalent) qualifying examination by virtue of which the candidate becomes eligible to appear in JEE (Main) 2020. It is important to note that the State code of eligibility does NOT depend upon the native place or the place of residence of the candidate. For example, if a candidate appears for the Class XII examination in New Delhi and is a resident of NOIDA, Uttar Pradesh, the candidate's State code of eligibility will be that of Delhi and NOT that of Uttar Pradesh.
Application Procedure:
Those candidates who did not Appear in JEE(Main) Jan 2020 or Fresh Candidates:

Register for the Online Application Form, choose your Password and note down system generated Application Number.

Complete the Application Form Candidate can login with the system generated Application Number and created Password for completing the Application Form .

Upload Scanned Images of Photograph and Signature

Pay Examination Fee by debit/credit card/Net Banking/UPI/PAYTM of Syndicate/SBI/ICICI/HDFC Bank.
Those candidates who have already Appeared for JEE (Main) January 2020:

Candidate has to login with the Application Number of the January 2020 examination and its
created Password/date of birth.

Complete the Application Form by providing:choice of course(s) (B.E./B.Tech or B Arch / B. Planning or both), question paper medium, choice of four centre cities, medium of Instructions/StudyPhysics, Chemistry and Mathematics in Class 11th/12th/equivalent education details of Class 12/equivalent : like type of school and Roll No and Year of Passing/Appearing,

Upload 12th class/ equivalent Admit card/ Mark sheet/ Certificate (size 50kb to 500kb).

Payment of fee by Debit/Credit Card/Net Banking/UPI/PayTM
Examination Fees:
JEE MAINS2020 April exam shall have two papers

PaperI: For B.E/B.Tech

PaperII: For B.Arch
The fee (in Indian Rupees) for JEE(Main)2020 is as follows:
Fee Payable: FOR EXAMINATION CENTRE OPTED 
IN INDIA 
OUTSIDE INDIA 
Paper1 (B.E./B.Tech.)
orPaper2 (B. Arch/ B.Planning)  General/GenEWS/ OBC(NCL)  Boys  Rs 650/
Girls  Rs 325/  Boys  Rs 3000/
Girls  Rs 1500/ 
SC/ST/PwD/ Transgender  Boys  Rs 325/
Girls  Rs 325/  Boys  Rs 1500/
Girls  Rs 1500/ 
Both Paper1 (B.E./B.Tech.)
and Paper2 (B. Arch/ B.Planning)  General/GenEWS/ OBC(NCL)  Boys  Rs 1300/
Girls  Rs 650/  Boys  Rs 6000/
Girls  Rs 3000/ 
SC/ST/PwD/ Transgender  Boys  Rs 650/
Girls  Rs 650/  Boys  Rs 3000/
Girls  Rs 3000/ 
Service/Processing charges & Service Taxes are to be paid by the candidate, as applicable 
Exam Pattern:
Mode of Exam:Computer Based Test Only
^{**} For Paper2 (B. Arch):To be attempted in one sitting. Mathematics Part I and Aptitude TestPart II in "Computer Based Test (CBT)" mode only and Drawing Test Part III in "Pen & Paper Based" (offline) mode to be attempted on Drawing sheet
Paper1 (B.E./B. Tech.) : "Computer Based Test (CBT)" mode only to be attempted on Computer 
Subject wise dist ribution of Questions, Total Number of Questions and Marks  Subject  No of Questions  Marks 
Mathematics  (20+5*)  100 
Physics  (20+5*)  100 
Chemistry  (20+5*)  100 
Total  75  300 
Paper2 (B. Arch):To be attempted in one sitting. Mathematics Part I and Aptitude TestPart II in "Computer Based Test (CBT)" mode only and Drawing Test Part III in "Pen & Paper Based" (offline) mode to be attempted on Drawing sheet 
Subject wise distribution of Questions, Total Number of Questions and Marks  Subject  No of Questions  Marks 
MathematicsPart I  (20+5*)  100 
Aptitude TestPart II  50  200 
Drawing Test Part III  02  100 
Total  77  400 
(B.Planning):To be attempted in one sitting. Mathematics Part I ;Aptitude TestPart II and Planning Based Questions Part III in "Computer Based Test (CBT)" mode only 
Subject wise distribution of Questions, Total Number of Questions and Marks  Subject  No of Questions  Marks 
MathematicsPart I  (20+5*)  100 
Aptitude TestPart II  50  200 
Planning Based Objective Type MCQPart III  25  100 
Total  100  400 
**20 questions will be MCQs and 5* questions will have answer to be filled as numerical value.** 
Marking Scheme for MCQs (PartI&II)  Correct Answer: Four mark (+4)
Incorrect Answer: Minus one mark (1) 
Marking Scheme for questions for which answer is a Numerical value  Correct Answer: Four mark (+4)
Incorrect Answer: No mark (0) 
Medium of Question Papers:
All Examination Centre Cities  English and Hindi Medium 
Examination Centre Cities in Gujarat, Daman & Diu and Dadra and Nagar Haveli  English, Hindi and Gujarati 
Syllabus of JEE Mains2020:
UNIT 1: 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, Composition of functions
UNIT 2: Complex Numbers and Quadratic Equations

Complex Numbers: 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, Triangle Inequality; Quadratic Equation: Quadratic equations in real and complex number system and their solutions. Relation between roots and co  efficients. Nature of roots. Formation of quadratic equations with given roots.
UNIT 3: Matrices and Determinants:

Matrices: Algebra of Matrices, Types of Matrices, Determinants and matrices of order two and three. Determinants: Properties of determinants, Evalution of determinants, Area of triangles using determinants, Adjoint and evolution of inverse of a square matrix using determinants and elimentary transformations, Test of consistensy and solution of simultaneous linear equations in two or three variables using determinants and materices.
UNIT 4: Permutations and Combinations:

Fundamental principle of counting, Permutation as an arrangement and combination as selection, Meanting of P(n, r) and C(n, r), simple applications.
UNIT 5: Mathematical Induction:

Principle of Mathematical Induction and its simple applications.
UNIT 6: Binomial Theorem and its Simple Applications:

Binomial theorem for a positive integral inde, General term and Middle term, Properties of Binomial coefficients and simple applications
UNIT 7: Sequences and Series:

Arithmatic and Geometric Progressions, Insertion of Arithmetic, Geometric means between two given numbers, Relation between \(A.M\) and \(G.M\), Sum upto \(n\) terms of special series: \(S n, S n2, S n3\), Arithmetico  Geometric progression.
UNIT 8 : 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 upto 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 normals.
UNIT 9 : Integral Calculus:

Integral as an anti  derivative, Fundamental integrals involving algebraic, trigonometric, exponential and logarithmic functions, Integration by substitution, by parts and by partial fractions. Integration using trigonometric identities.
Evaluation of simple integrals of the type
\(\int{\frac{dx}{{{x}^{2}}\pm {{a}^{2}}}},\,\,\int{\frac{dx}{\sqrt{{{x}^{2}}\pm {{a}^{2}}}}},\,\,\int{\frac{dx}{{{a}^{2}}{{x}^{2}}}},\,\,\int{\frac{dx}{\sqrt{{{a}^{2}}{{x}^{2}}}}},\,\,\int{\frac{dx}{a{{x}^{2}}+bx+c}},\)
\(\int{\frac{dx}{\sqrt{a{{x}^{2}}+bx+c}}},\,\,\int{\frac{\left( px+q \right)dx}{a{{x}^{2}}+bx+c}},\,\,\int{\frac{\left( px+q \right)dx}{\sqrt{a{{x}^{2}}+bx+c}}}\)
\(\int{\sqrt{{{a}^{2}}\pm {{x}^{2}}}\,dx},\,\,\int{\sqrt{{{x}^{2}}{{a}^{2}}}}\,dx\)
Integral as limit of a sum, Fundamental Theorem of Calculus, Properties of definite integrals, Evaluation of definite integrals, determining areas of the regions bounded by simple curves in standard form.
UNIT 10: Differential Equations:

Ordinary differential equations, their order and degree. Formation of differential equations. Solution of differential equations by the method of separation of variables, Solution of homogeneous and linear differential equations of the type:
\(\frac{dy}{dx}+p\left( x \right)y=q\left( x \right)\)
UNIT 11: Co  Ordinate Geometry:

Cartesian system of reqular co  ordinates 10 in a plane, Distance formula, section Formula, locus and its equation, Translation of axis, Slope of a line, Parallel and perpendicular lines, Intersepts of a line on the coordinate axes.
Straight Lines:Various forms of equations of a line, Intersection of lines, Angles between two lines, Conditions for concurrence of three lines, Distance of a point from a line, Equations of inmnternal and external bisectors of angles between two lines, Coordinates of centroid, Orthocentre and circumcentre of a triangle, Equation of family of lines passing through the point of intersection of two lines.
Circles, conic sectons: Standard form of equation of a circle, General form of the equation of a circle, its radius and centre, Equation of a circle when the end points 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 cones equations of conicc sections(parabola, ellipse and hyperbola) in standard forms, Condition for y = mx + c to be a tangent and point(s) of tangency.
UNIT 12: Three Dimensional Geometry:

Coordinates of a point in space, Distance between two points, Section formula, direction ratio anddirection cosines. Angle between two intesecting lines. Skew lines, the shortest distance between them and its equation, Equations of a line and a plane in different forms, Intersection of a line and a plane, coplanar lines.
UNIT 13: Vector Algebra:

Vectors and scalars, addition of vectors, Components of a vector in two dimensions and three dimentsional space, Scalar and vector product, scalar and vector tripple product.
UNIT 14: Statistic and Probability:

Measures and Dispersion: Calculation of mean, median, Mode of grouped and ungrouped data calculation of standard deviation. Variance nad mean deviation for grouped and ungrouped data. Probability: Probabilty of an event, addition and multiplication and theorems of probability, Baye's theorem, Probability distribution of a random variate, Bernoulli trails and Binomial distribution.
UNIT 15: Trigonometry:

Trigonometrical identities and equations, Trigonometrical functions, Inverse trigonometrical functions and their properties, Heights and distances
UNIT 16: Mathematical Reasoning:

Statements, logical operations and, or, implies, implied by, if and only if, Understanding of tautology, contradiction, converse and contrapositive.
The syllabus contains two Sections  A and B. Section  A pertains to the Theory part having 80% weightage, while Section  B contains Practical Components (Experimental Skills) having 20% weightage.
SECTION  A
UNIT 1: Physics and Measurements:

Physics, Technology and society, S I Units, Fundamental and derived units, Least count, accuracy and procision of measuring intruments. Errors in measurement, Dimentsions of Physical quantities, Dimensional analysis and its applications
UNIT 2: Kinematics

Frame of reference. Motion in a straight line Positiontime graph, speed and velocity. Uniform and nonuniform motion, average speed and instantaneous velocity, Uniformly accelerated motion, velocitytime, positiontime 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.
UNITS 3: 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.
UNIT 4: Work, Energy and Power:

Work done by a constant force and a variable force; kinetic and potential energies, workenergy theorem. power. Potential energy of a spring, conservation of mechanical energy, conservative and nonconservative forces; Elastic and inelastic collisions in one and two dimensions.
UNIT 5: Rotational Motion:

Centre of mass of a twoparticle 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.
UNIT 6: 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. Geo  stationary satellites
UNIT 7: Properties of Solids and Liquids:

Elastic behavior, 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, strokes' 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.
UNIT 8: 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. Carnot engine and its efficiency.
UNIT 9: Kinetic Theory of Gases:

Equation of state of a perfect gas, work done on compressing a gas. Kinetic energy and temperature; rms speed of gas molecules; Degree of freedom, Law of Equipartition of energy, Applications to specific heat capacities of gases, Mean free path, Avogadro's number.
UNIT 10: Oscillations and Waves:

Periodic motion  period, frequency, displacement as 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, force and damped oscillations, resonance. Wave motion, Longitudinal and transverse waves, speed of a wave. Displacement relation for a progressive wave. Principle of superposition pf waves, reflection of waves, Standing waves in in strings and organ pipes, fundamental mode and harmonics, beats, Doppler effect in sound.
UNIT 11: Electrostatics

Electric charges: Conservation of Charge, Coulomb's law  forces between two point changes; force between multiple charges; superposition principle and continuous charge distribution.

Electric Field: Electric field due to a point charge, electric field lines, electric dipoles, Electric field due to a dipole, Torque on a dipole in a uniform electric field.

Electric Flux: Gauss's law and it's 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.
UNIT 12: Current Electricity:

Electric current, Drift velocity, Ohm's law, Electrical resistance, Resistance of different materials, V  I characteristics of Ohmic and nonohmic conductors, Electrical energy and power and electrical resistivity, color code for 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  principal and its applications.
UNIT 13: 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 field, Moving coil galvanometer, its current sensitivity and conversion to ammeter and voltmeter. Current loop magnetic dipole and its magnetic dipole moment. Bar magnetic as an equivalent solenoid, magnetic field lines; Earth's magnetic fields and magnetic elements, Para, dia and ferro magnetic substances. Magnetic susceptibility and permeability, Hysteresis, Electromagnets and permanent magnets.
UNIT 14: Electromagnetic Induction and Alternating Current:

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, wattles current. AC generator and transformer.
UNIT 15: 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.
UNIT 16: 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: wave front and Huygens' principle. Laws of reflection and refraction using Huygens's 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 Polaroids.
UNIT 17: Dualnature of Matter and Radiation:

Dual nature of radiation. Photoelectric effect, Hertz and Lenard's observations; Einstein's photoelectric equation; particle nature of light. Matter waveswave nature of particle, de Broglie relation. Davisson  Germer experiment.
UNIT 18: Atoms and Nuclei:

Alphaparticle scattering experiment; Rutherford's model of atom; Bohr model, energy levels, hydrogen spectrum. Composition and size of nucleus, atomic masses, isotopes, isobars; isotones. Radioactivityalpha, beta and gamma particles/rays and their properties; radioactive decay law. Massenergy relation, mass defect; binding energy per nucleon and its variation with mass number, nuclear fission and fusion.
UNIT 19: Electronic Devices:

Semiconductors; semiconductor diode: IV characteristics in forward and reverse bias; diode as a rectifier; IV 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.
UNIT 20: Communication System:

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).
SECTION  B
UNIT 21: Experimental Skills:
Familiarity with the basic approach and observations of the experiments and activities:

Vernier calipersits use to measure internal and external diameter and depth of a vessel.

Screw gaugeits use to determine thickness/ diameter of thin sheet/wire.

Simple Pendulumdissipation 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:

Convex mirror

Concave mirror, and

Convex lens using parallax method.

Plot of 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 pn 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, Capacitor from mixed collection of such items.

Using multimeter to:

Identify 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).
SECTION: A
Physical Chemistry
UNIT 1: 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.
UNIT 2: States of Matter:
Classification of matter into solid, liquid and gaseous states.

Gaseous State: Measurable properties of gases; Gas laws  Boyle's law, Charle's law, Graham's law of diffusion, Avogadro's law, Dalton's law of partial pressure; Concept of Absolute scale of temperature; Ideal gas equation; Kinetic theory of gases (only postulates); Concept of average, root mean square and most probable velocities; Real gases, deviation from Ideal behavior, compressibility factor and van der Waals equation.

Liquid State: Properties of liquids  vapor pressure, viscosity and surface tension and effect of temperature on them (qualitative treatment only).

Solid State: Classification of solids: molecular, ionic, covalent and metallic solids, amorphous and crystalline solids (elementary idea); Bragg's Law and its applications; Unit cell and lattices, packing in solids (fcc, bcc and hcp lattices), voids, calculations involving unit cell parameters, imperfection in solids; Electrical and magnetic properties.
UNIT 3: Atomic Structure:

Thomson and Rutherford atomic models and their limitations; 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, deBroglie'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 \(\psi \) and \({{\psi }^{2}}\) 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 completely filled orbitals.
UNIT4: 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.
UNIT 5: 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.
UNIT6: Solutions:

Different methods for expressing concentration of solution  molality, molarity, mole fraction, percentage (by volume and mass both), vapor pressure of solutions and Raoult's Law  Ideal and nonideal solutions, vapor pressure  composition, plots for ideal and nonideal solutions; 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't Hoff factor and its significance.
UNIT 7: 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 \(\Delta G\) and \(\Delta {{G}^{0}}\) 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.
UNIT 8: 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.
UNIT 9: Chemicalkinetics:

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).
UNIT10: 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; 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
UNIT 11: 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.
UNIT 12: 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.
UNIT 13: 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.
UNIT 14: S  Block Elements (Alkali and Alkaline Earth Metals)
Group  I 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 \(Ca\).
UNIT 15: 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 behavior of the first element in each group.
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

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, \(\left( PC{{l}_{3}},\text{ }PCl{{ }_{3}} \right);\) 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.
UNIT 16: 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 behavior, magnetic properties, complex formation, interstitial compounds, alloy formation; Preparation, properties and uses of \({{K}_{2}}\text{ }C{{r}_{2}}\text{ }{{\text{O}}_{7}}\) and \(KMn{{O}_{4}}\).
Inner Transition Elements

Lanthanoids  Electronic configuration, oxidation states and lanthanoid contraction.

Actinoids  Electronic configuration and oxidation states.
UNIT 17: Co  Ordination Compounds:

Introduction to coordination compounds, Werner's theory; ligands, coordination number, denticity, chelation; IUPAC nomenclature of mononuclear coordination compounds, isomerism; BondingValence 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).
UNIT 18: Environmental Chemistry:

Environmental pollution  Atmospheric, water and soil.

Atmospheric pollution  Tropospheric and Stratospheric

Tropospheric pollutants  Gaseous pollutants: Oxides of carbon, nitrogen and Sulphur, 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 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.
SECTIONC
ORGANIC CHEMISTRY
UNIT 19: 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.
UNIT 20: 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, carbocation's and carbanions; stability of carbocation's and free radicals, electrophiles and nucleophiles.

Electronic displacement in a covalent bond  Inductive effect, electrometric effect, resonance and hyperconjugation.

Common types of organic reactions  Substitution, addition, elimination and rearrangement.
UNIT 21: 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.
UNIT 22: Organic Compounds Containing Halogenes:

General methods of preparation, properties and reactions; Nature of CX bond; Mechanisms of substitution reactions.
Uses; Environmental effects of chloroform, iodoform freons and DDT.
UNIT 23: 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, Reimer  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 \(HCN,\text{ }N{{H}_{3}}\) and its derivatives), Grignard reagent; oxidation; reduction (Wolff Kishner and Clemmensen); acidity of \(\alpha \)hydrogen, aldol condensation, Cannizzaro reaction, Haloform reaction; Chemical tests to distinguish between aldehydes and Ketones.
Carboxilic Acids
Acidic strength and factors affecting it.
UNIT 24: 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.
UNIT 25: Polymers

General introduction and classification of polymers, general methods of polymerizationaddition and condensation, copolymerization;

Natural and synthetic rubber and vulcanization; some important polymers with emphasis on their monomers and uses  polythene, nylon, polyester and Bakelite.
UNIT 26: 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.
UNIT 27: 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.
UNIT 28: 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, pnitroacetanilide, aniline yellow, iodoform.

Chemistry involved in the titrimetric exercises Acids bases and the use of indicators, oxalicacid vs \(KMn{{0}_{4}}\) Mohr's salt vs \(KMn{{0}_{4}}\).

Chemical principles involved in the qualitative salt analysis:
Cations \(P{{b}^{2+}}\text{, C}{{\text{u}}^{2+}},\,\,A{{l}^{3}},\text{ }F{{e}^{3+}},\text{ }Z{{n}^{2+}},\text{ }N{{i}^{2+}},\text{ }C{{a}^{2+}},\text{ }B{{a}^{2+}},\text{ }M{{g}^{2+}},\text{ }NH_{4}^{+}.\)
Anions  \(CO_{3}^{2},\,\,\,{{S}^{2}},\,SO_{4}^{2},\text{ }NO_{3}^{},\text{ }NO_{2}^{},\text{ }C{{l}^{}},\text{ }B{{r}^{}},\text{ }{{\text{I}}^{}}.\)
(Insoluble salts excluded).

Chemical principles involved in the following experiments:

Enthalpy of solution of \(CuS{{O}_{4}}\)

Enthalpy of neutralization of strong acid and strong base.

Preparation of lyophilic and lyophobic sols.

Kinetic study of reaction of iodide ion with hydrogen peroxide at room temperature.
Part  I:

Awareness of persons, places, Buildings, Materials.) Objects, Texture related to Architecture and build environment. Visualising three dimensional objects from two dimensional drawings. Visualising. different sides of three dimensional objects. Analytical Reasoning Mental Ability (Visual, Numerical and Verbal).
Part  II:

Three dimensional  perception: Understanding and appreciation of scale and proportion of objects, building forms and elements, colour texture, harmony and contrast. Design and drawing of geometrical or abstract shapes and patterns in pencil. Transformation of forms both 2 D and 3 D union, subtraction, rotation, development of surfaces and volumes, Generation of Plan, elevations and 3 D views of objects. Creating two dimensional and three dimensional compositions using given shapes and forms.

Sketching of scenes and activities from memory of urbanscape (public space, market, festivals, street scenes, monuments, recreational spaces etc.), landscape (river fronts, jungles. gardens, trees, plants etc.) and rural life.
Note: Candidates are advised to bring pencils, own geometry box set, erasers and colour pencils and crayons for the Aptitude Test.
Examination Centers:
Seat Allocation Process and Admission Procedure:

Candidates shall be offered admission based on their choices and All India Ranks of JEE (Main)2020 through a Seat Allocation Process

The candidates will be able to make their choices online for branches/programmes and institutes at appropriate time.

The verification of documents would be done after the Seat Allocation Process.

GenEWS, SC, ST, OBC and PwD candidates will be required to produce original certificate as per prescribed
formats issued by the competent authority at the time of Seat Allocation Process as well as at the time of
admission, failing which they will not be considered for admission.
List of Participating Institutions In Centralised Seat Allocation Process:

National Institute of Technology , Agartala (Tripura)

Motilal Nehru National Institute of Technology, Allahabad (U.P.)

National Institute of Technology, Arunachal Pradesh.

Maulana Azad National Institute of Technology, Bhopal (MP)

National Institute of Technology, Calicut (Kerela)

National Institute of Technology, Delhi

National Institute of Technology, Durgapur (West Bengal)

National Institute of Technology, Goa

National Institute of Technology, Hamirpur (Himachal Pradesh)

Malviya National Institute of Technology, Jaipur (Rajasthan)

Dr. B R Ambedkar National Institute of Technology, Jalandhar (Punjab)

National Institute of Technology, Jamshedpur (Jharkhand)

National Institute of Technology, Kurukshetra (Haryana)

National Institute of Technology, Manipur

National Institute of Technology, Meghalaya

National Institute of Technology, Mizoram

National Institute of Technology, Nagaland

Visvesvaraya National Institute of Technology, Nagpur (Maharashtra)

National Institute of Technology, Patna (Bihar)

National Institute of Technology, Puducherry

National Institute of Technology, Raipur (Chhattisgarh)

National Institute of Technology, Rourkela (Odisha)

National Institute of Technology, Sikkim

National Institute of Technology, Silchar (Assam)

National Institute of Technology, Hazartbal, Srinagar (J & K)

Sardar Vallabhbhai National Institute of Technology, Surat (Gujarat)

National Institute of Technology, Surathkal, Mangalore (Karnataka)

National Institute of Technology, Tiruchirapalli (Tamil Nadu)

National Institute of Technology, Uttrakhand

National Institute of Technology, Warangal

National Institute of Technology, Andhra Pradesh, Vatluru, Eluru  534007

Atal Bihari Vajpayee Indian Institute of Information Technology & Management, Gwalior (M.P.)

Indian Institute of Information Technology, Design & Manufacturing, Kanchipuram, Chennai (TamilNadu)

Indian Institute of Information Technology, Jhalwa, Allahabad (UP)

Pandit Dwarka Prasad Mishra Indian Institute of Information Technology, Design & Manufacturing, Jabalpur (M.P.)

Indian Institute of Information Technology, Guwahati (Assam)

Indian Institute of Information Technology, Kota (Rajasthan)

Indian Institute of Information Technology, Sri City, Chitoor (A. P.)

Indian Institute of Information Technology, Vadodara (Gujarat)

Indian Institute of Information Technology Manipur Mantripukhri, Imphal 795001

Indian Institute of Information Technology Srirangam,Tiruchirappalli

Indian Institute of Information Technology Lucknow

Indian Institute of Information Technology(IIIT) Dharwad

Indian Institute of Information Technology(IIIT) Kurnool

Indian Institute of Information Technology(IIIT) Kottayam

Indian Institute of Information Technology(IIIT) Kalyani, West Bengal

Indian Institute of Information Technology(IIIT) Kilohrad, Sonepat, Haryana

Indian Institute of Information Technology(IIIT) Una, Himachal Pradesh

Indian Institute of Information Technology (IIIT) Ranchi, Jharkhand

Indian Institute of Information Technology (IIIT) Nagpur , Maharashtra

Indian Institute of Information Technology (IIIT) Pune , Maharshtra

Indian Institute of Information Technology Bhagalpur

Indian Institute of Information Technology Bhopal

Indian Institute of Information Technology Surat

Indian Institute of Information Technology, Agartala

Indian institute of information technology, Raichur, Karnataka

Assam University, Silchar (Assam)

Birla Institute of Technology, Mesra, Ranchi (Jharkhand)

Gurukul Kangri Vishwavidyalaya, Haridwar (Uttarakhand)

Indian Institute of Carpet Technology, Bhadohi (U.P.)

Institute of Infrastructure, Technology, Research & Management, Ahmedabad

Institute of Technology, Guru Ghasidas Vishawavidyalaya, Bilaspur (C.G.)

J.K. Institute of Applied Physics & Technology, University of Allahabad, Allahabad 211002 (U.P.)

Mizoram University, Aizwal796009

National Institute of Foundry & Forge Technology, P.O. Hatia, Ranchi (Jharkhand).

School of Planning and Architecture, Bhopal (Madhya Pradesh)

School of Planning and Architecture, I.P. Estate, New Delhi (SPA, Delhi).

School of Planning and Architecture, Vijayawada (Andhra Pradesh)

Shri Mata Vaishno Devi University, Katra182320 (J & K)

Tezpur University, NAPAAM, Tezpur (Assam)

Indian Institute of Engineering Science & Technology, Shibpur, Distt Howrah (Formerly Bengal
Engineering & Science University Shibpur)

Indian Institute of Crop Processing Technology, Thanjavur, Tamilnadu

National Institute of Electronics and Information Technology, Aurangabad, Maharashtra

Sant Longowal Institute of Engineering and Technology Longowal  148106, Distt. Sangrur (Pb.), India

Harcourt Butler Technical University, Kanpur (U.P.)

Indian Institute of Petroleum & Energy, Visakhapatnam.

Indian Institute of Handloom Technology, Salem, Tamil Nadu.

JamiaHamdard University, Delhi.

University of Hyderabad, Hyderabad

Central institute of Technology Kokrajar, Assam

Pondicherry Engineering College, Puducherry

Ghani Khan Choudhary Institute of Engineering and Technology, Malda, West Bengal

Central University of Rajasthan, Rajasthan

National Institute of Food Technology Entrepreneurship and Management, Sonepat, Haryana
Complete Schedule For JEE Mains April 2020:
EVENTS  DATES 
Online submission of Application Form  07.02.2020 to 06.03.2020 (Upto 11.50p.m) 
Date for successful final transaction of fee
(through Credit/Debit Card/UPI and Net Banking/PAYTM Service) up to 11.50 p.m.
 07.02.2020 to 07.03.2020 
Correction in Particulars of application form on website only  08.03.2020 to 12.03.2020
(up to 11.50 p.m.)

Printing of Admit Cards from NTA's website  From 20.03.2020 
Dates of Examination 
Between 05.04.2020, 07.04.2020 to 09.04.2020 & 11.04.2020 
Timing of Examination  First Shift : 9.30 a.m. to 12.30 p.m. 
Second Shift : 2.30 p.m. to 5.30 p.m. 
Display of recorded responses and Answer Keys for inviting
challenges on NTA's website  Date shall be displayed on the NTA"s website 
Declaration of Result on NTA's website  By 30^{th} April, 2020 
For complete information about JEE (Main) April2020, Visit https://myrank.co.in/notifications/