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Praadis Classes for JEE


JEE Main 2020 was held from 1st to 6th September 2020. NTA will soon release the result of JEE Main on the officials. The NTA is conducting exams on multiple dates, in two sessions per day. Praadis presents complete details about JEE Main 2020 answer key, result, cut-off, admit card, exam pattern, counselling, previous years question papers and the FAQs (frequently asked questions). The FAQs are most frequently asked questions to clear all your doubts related to the exam.

About JEE (Joint Entrance Exam)

The Joint Entrance Examination is a national level engineering entrance exam held twice a year for admission of to various engineering colleges in India. The National Testing Agency conducts it. In JEE, the joint admission process conducted by Joint Seat Allocation Authority (JOSAA) 2020 for a total of 111 institutes for the academic year 2020-21. It includes 23 IITs (Indian Institutes of Technology) campuses, 32 NITs (National Institute of Technology) campuses, 26 IIITs (Indian Institute of Information Technology), IIEST and 30 Other Government-funded Technical Institutes (GFTIs). According to the reports of the Ministry of Education of Government of India, the government is planning to conduct only one engineering entrance examination like NEET for all engineering colleges including private institutions across India. Admissions to all the academic programs proposed by these institutions will be created through a single platform.

Exams Intitutions (Admission Purpose)
JEE -Main 2020 (B.E./B.Tech./ B.Arch./ B.Planning) NITs, IIEST, IIITs and Other-GFTIs
JEE (Advanced) 2020 IITs

Joint Entrance Exam is formed by two separate exams- JEE Main and JEE Advanced

JEE (Advanced) is a national level examination conducted every year by IIT, IIT Kharagpur, IIT Kanpur, IIT Madras, IIT Delhi, IIT Bombay, IIT Guwahati, and IIT Roorkee or Indian Institute of Science (IISc) Bangalore and some other colleges. Candidates who have qualified in JEE Mains are eligible to give JEE (Advanced) 2020. It is the second entrance exam for those candidates who are willing to take admission in IITs. The JEE (Advanced) 2020, organized by IIT Delhi on 27 September 2020, was rescheduled due to the COVID-19 outbreak keeping in mind the safety of students and ensuring quality education.

The application form was released on 12 September and was available till 17 September. The last day of fee payment was on 18 September 2020. Based on the performance given in JEE-Main 2020, the number of candidates to appear in JEE (Advanced) has increased to 250,000 decided by the Joint Admission Board (JAB). The application form is available at jeeadv.ac.in in online mode. The candidates have to fill the form as per the given time. The below format will help the candidate in filling the application form.

Notifications

        

    JEE Notification 2020

    JEE Main 2020 is organized from 1st to 6th September 2020. NTA will soon release the result of JEE Main on the officials. NTA has declared JEE Main Paper 1 result on 11th September 2020 and Final Answer keys. The official cut-off has also been declared Joint Seat Allocation Authority (JOSAA) 2020 has announced counselling, Starting from 6th October 2020.

    The exam was held in 660 centres in 232 cities including 8 outside India and was monitored by the central control room, third party audit, under CCTV surveillance, a total of 2500 jammers were placed to prevent cheating. Over 8, 58,273 candidates have appeared in the exam.

    JEE 2020 Updates
  • Candidates are advised to download score card from the JEE mains website: www.nta.ac.in / jeemain.nta.nic.in
  • There is no provision for re-valuation/ re-checking of the score.
  • NTA Score for Paper-II (B.Arch. &B. Planning) will be declared later on.

        

JEE Main 2020 Exam Latest News

    JEE (Main) - April / September 2020 ANSWER KEYS has been declared

    As per Press Release: JEE Main Paper I (BE /B. Tech) Result has been declared by NTA. Category wise list of candidates appeared:

    Category Number of candidates appeared
    General 3.91 lakhs
    EWS 0.95 lakhs
    SC 0.97 lakhs
    ST 0.38 lakhs
    OBC(NCL) 4.02 lakhs
    TOTAL 10.23 lakhs

    A registered candidate can view their January 2020 scorecard/Result, or you can directly open the page from given below link: View JEE (Main) January 2020 Result/Score Card.

    The Ministry of Human Resource & Development, Govt. of India has approved that the selection for admission of Direct Admission of Students ABROAD (DASA) candidates will be through JEE Main. The Admission for Direct Admission of Students ABROAD (DASA) will be made based on Rank obtained in JEE(Main) from the Academic Session 2021-22.

    Joint Seat Allocation Authority (JOSAA) 2020 has announced counselling, Starting from 6th October 2020.

        

JEE Main Exam Details 2020

    JEE Main 2020 is organized from 1st to 6th September 2020. Joint Seat Allocation Authority (JOSAA) 2020 has announced counselling, Starting from 6th October 2020. The exam has been conducted in a total of 605 centres and over 8, 58,273 candidates have appeared in the exam.

    Date of Examination(JEE 2020)

    13.09.2020(Sunday)

    Mode of examination

    B.E./B.Tech.

    1. Mathematics 2. Physics 3. Chemistry

    Computer Based Test

    B. Arch

    Mathematics - Part I Aptitude Test - Part II Drawing Test - Part III

    Part I & Part II Computer Based Test Part III- Offline mode(Pen Paper based)

    B. Planning

    Mathematics - Part I Aptitude Test - Part II Planning Based Questions - Part III

    Computer Based Test

    Please have a look at exam instructions for candidates:

  • Look at the exam date sheet carefully. Make sure you know the exact date and time and the location of your exams.
  • Bring both student's admit card and ID card during the exam. Otherwise, candidates will not be allowed to enter the examination hall without admit card.
  • Avoid carrying any unauthorized material like papers, Geometry/Pencil Box, Plastic Pouch, Calculator, Pen, Scale, Writing Pad, Pen Drives, Eraser, Calculator, Log Table, Electronic Pen/Scanner.
  • Any communication device like Mobile Phone, Bluetooth, Earphones, Microphone, Pager, Health Band.
  • Any food items opened or packed, water bottle.
  • The candidate is advised to arrive at the examination centre 2 hours before the commencement of the examination.
  • A candidate who arrives after 01:30 pm will not be allowed to enter the examination centre in any conditions.
  • The test will start at the same time as mentioned in the admit card and will be announced by the investigator.

        

JEE Main Eligibility criteria 2020

    There are no age criteria for the candidates.

    As per nationality- Indian, Persons of Indian Origin, Overseas Citizens of India, Foreign Nationals and Non-resident Indians are eligible to appear in JEE Main 2020 exam.

    To be eligible for JEE Main 2020, candidates must pass the 12th/ Equivalent exam by any recognized Board/ as listed by NTA with compulsory subjects like Physics, Chemistry and Mathematics.

    75% aggregate marks in 12th/equivalent exam to be eligible for JEE Main 2020 for general category student. Relaxation of 10% minimum marks for reserved category candidates.

    Reservation applicable in a participating institute for admission:
    Category Seat Reserved
    GEN-EWS 10%
    OBC-NCL 27%
    SC 15%
    ST 7.5%
    PwD 5%
  • GEN-EWS- General-Economically Weaker Section
  • OBC-NCL- Other Backward Classes- Non Creamy layer
  • SC- Scheduled Caste
  • ST- Scheduled Tribe
  • PwD- Persons with Disabilities
  • The categories of disabilities are:
  • Blindness and low vision
  • Deaf and hard of hearing
  • Locomotor disability including cerebral palsy, leprosy cured, dwarfism, acid attack victims and muscular dystrophy
  • Autism, intellectual disability, specified learning disability and mental illness, and
  • Multiple disabilities from amongst persons under clauses (i) to (iv)
  • Other 'specified disabilities' mentioned in the Schedule of the RPwD Act 2016.
  • Candidates can appear for JEE Main for 3 consecutive years although the efforts of the session as two attempts in a year will be considered as one.

        

JEE Main Admit Card 2020

    The National Testing Agency (NTA) released the JEE Main Admit Card 2020 on the official website of the exam - jeemain.nta.nic.in on Monday, August 17, 2020. Issuance of admit card is done by NTA.

    Procedure to download Admit card:
  • 1. To download the admit card visit jeemain.nta.nic.in
  • 2. To download e-Admit card, candidates will require JEE Main application number followed by Date of Birth, then submit.
  • 3. In case of any discrepancy in downloading admit card, candidates can reach out to below contact details for help. 8287471852, 8178359845 , 9650173668 , 9599676953 , 8882356803 o Or write an email to JEE (Main) Query Redressal System (QRS).(Email ID: jeemain-nta@gov.in)
  • 4. The download JEE Main 2020 admit card will have details like, Name of Candidate, Father's Name, Date of Birth, Gender, Category, State of Eligibility, Roll Number, Paper for which appearing, Application Number, Exam Centre Name, Exam Centre Address, Timing of Exam, Photograph of Candidate, Signature of Candidate, Candidate's parent signature.
  • 5. Candidates are required to carry documents like, JEE Main admit card, a valid original photo ID(Aadhaar card, Ration card, Pan Card, Passport, Voter ID, Driving licence, or other government authorized document) that is not expired to the exam centre.
  • 6. JEE Main 2020 is already conducted from 1 to 6 September 2020, and the result is released on 10 September on the official website of JEE Mains 2020 jeemain.nta.ac.in.
  • 7. The total number of candidates who have appeared in the exam are 9, 21,261 students in the January session.
  • 8. Candidates can download the admit card from any compatible browser - Internet Explorer, Firefox and Chrome.
  • 9. To avoid any errors, candidates should carefully check the details in the admit card. If any discrepancy is found during the examination, the candidates will not be able to appear in that examination.
  • 10. Candidates are required to follow the instructions mentioned in the admit card carefully.

        

JEE-Main Exam Pattern 2020:

    So far, JEE Main has a fixed format of exam. It comprises of two compulsory papers for admission in B.E. /B. Tech. Courses and three compulsory papers for admission in B. Arch and B. Planning courses. From January 2020: One additional paper (Paper III) is introduced for B. Planning students, i.e. Drawing test, which will be conducted in offline mode (pen-paper based).

    JEE Main 2020 consists of 3 main subjects, namely, Mathematics, Physics and Chemistry.

    Paper 1 is for admission in B.E. /B. Tech. courses

    Subject

    No. of Questions

    No. of Marks

    Mathematics

    20+5*=30 (20 MSQ+ 5 Numerical Questions)

    100

    Physics

    20+5*=30 (20 MSQ+ 5 Numerical Questions)

    100

    Chemistry

    20+5*=30 (20 MSQ+ 5 Numerical Questions)

    100

    Total

    75

    300

    In paper 1- there are 25 questions from Mathematics, 25 from Physics and 25 from Chemistry; therefore, the total number of questions is 75.

    Each question will carry 4 marks, and each incorrect response gets -1 negative marking. The duration of the exam is 3 hours (180 minutes).

    No negative marking is done for numerical questions. The maximum marks in the exam are 300.

    Paper 2 is for admission in B. Arch

    Subject

    Number of questions

    Marks

    Mathematics Part 1

    20+5*=30 (20 MSQ+ 5 Numerical Questions)

    100

    Aptitude Test Part II

    50

    200

    Drawing Test -Part III

    2

    200

    Total

    77

    400

    In paper 2- there are 25 questions from Mathematics, 50 from the Aptitude test, 2 from Drawing Test; therefore, the total number of questions is 77.

    Each question will carry 4 marks, and each incorrect response gets -1 negative marking. The duration of the exam is 3.30 hours.

    No negative marking is done for numerical questions. The maximum marks in the exam are 400.

    Paper 3 is for admission in B. Planning courses

    Subject

    Number of questions

    Marks

    Mathematics Part 1

    20+5*=30 (20 MSQ+ 5 Numerical Questions)

    100

    Aptitude Test Part II

    50

    200

    Planning Based Objective Type MCQs -Part III

    25

    100

    Total

    100

    400

    In paper 3- there are 25 questions from Mathematics, 50 from Aptitude test, 25 from Planning Based Objective Type MCQs; therefore, the total number of questions is 100.

    Each question will carry 4 marks, and each incorrect response gets -1 negative marking. The duration of the exam is 3.30 hours (180 minutes).

    No negative marking is done for numerical questions. The maximum marks in the exam are 400.

    Note: If the candidate is acquiring equal marks/percentile, then among themselves merit will be determined in order to below sequence:

  • Candidate acquiring higher marks/percentile in Maths
  • Candidate acquiring higher marks/percentile in Physics
  • Candidate acquiring higher marks/percentile in chemistry
  • Candidate who is older

        

JEE Syllabus 2020

    Syllabus for Paper-1 (B.E. /B. Tech.) - Mathematics, Physics and Chemistry:

    JEE Syllabus 2020 for Mathematics

    Mathematics

    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, the composition of functions.

    Unit 2:

    Complex numbers 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 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.

    Properties of determinants

    evaluation of determinants

    Area of triangles using determinants.

    Adjoint and evaluation of inverse of a square matrix using determinants and elementary transformations

    Test of consistency and solution of simultaneous linear equations in two or three variables using determinants and matrices.

    Unit 4:

    Permutations and combinations

    Fundamental principle of counting

    permutation as an arrangement and

    combination as selection

    Meaning 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

    Principle of Mathematical Induction and its simple applications

    Binomial theorem for a positive integral index

    general term and middle term

    properties of Binomial coefficients

    simple applications

    Unit 7:

    Sequences and series

    Arithmetic 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, Sn3

    Arithmetic - 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 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: dy/dx+p(x)y=q(x)

    Unit 11:

    Co-ordinate geometry

    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 internal 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 sections: 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 conic sections (parabola, ellipse and hyperbola) in standard forms, condition for y = mx + c to be a tangent and point (s) of tangency.

    Solution of differential equations by the method of separation of variables, solution of homogeneous and linear differential equations of the type: dy/dx+p(x)y=q(x)

    Unit 12:

    Three dimensional geometry

    Coordinates of a point in space, distance between two points, section formula, direction ratios and direction cosines, angle between two intersecting 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 dimensional space

    Scalar and vector products, scalar and vector triple product.

    Unit 14:

    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, Baye's theorem, probability distribution of a random variate, Bernoulli trials 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


    Check out the full syllabus JEE Main April 2020 Paper 1 Syllabus for Physics below.

    Physics

    CONTENTS OF Physics

    UNIT I:

    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

    Unit 2:

    Kinematics

    Frame of reference

    Motion in a straight line: Position-time graph, speed and velocity

    Uniform and non-uniform motion, average speed and instantaneous velocity

    Uniformly accelerated motion, velocity-time, position-time graphs, and 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

    Unit 3:

    Laws of Motion

    Force and Inertia

    Chemical constituents of living cells: Biomolecules-structure and function of proteins, carbohydrates, lipids, nucleic acids; Enzymes-types, properties, enzyme action.

    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, work energy theorem, power.

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

    Unit 5:

    Rotational Motion

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

    Values of moments of inertia for simple geometrical objects, parallel and perpendicular axes theorems and their applications.

    Rigid body rotation, equations of rotational motion.

    Unit 6:

    Gravitation

    The universal law of gravitation

    Acceleration due to gravity and its variation with altitude and depth.

    Kepler's laws of planetary motion.

    Gravitational potential energy; gravitational potential.

    Escape velocity.

    Orbital velocity of a satellite. Geo-stationary satellites.

    Unit 7:

    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.

    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 theory of gases - assumptions, concept of pressure.

    Kinetic energy and temperature: rms speed of gas molecules; Degrees of freedom, Law of equipartition of energy, applications to specific heat capacities of gases; Mean free path, Avogadro's number.

    Unit 10:

    Oscillations and Waves

    Periodic motion - period, frequency, displacement as a function of time. Periodic functions. Simple harmonic motion (S.H.M.) and its equation; phase; oscillations of a spring -restoring force and force constant; energy in S.H.M. - kinetic and potential energies; Simple pendulum - derivation of expression for its time period; Free, forced and damped oscillations, resonance

    Wave motion. Longitudinal and transverse waves, speed of a wave. Displacement relation for a progressive wave. Principle of superposition of waves, reflection of waves, Standing waves 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 charges, forces between multiple charges; superposition principle and continuous charge distribution.

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

    Electric flux, Gauss's law and its applications to find field due to infinitely long uniformly charged straight wire, uniformly charged infinite plane sheet and uniformly charged thin spherical shell. Electric potential and its calculation for a point charge, electric dipole and system of charges; Equipotential surfaces, Electrical potential energy of a system of two point charges in an electrostatic field.

    Conductors and insulators, Dielectrics and electric polarization, capacitor, combination of capacitors in series and in parallel, capacitance of a parallel plate capacitor with and without dielectric medium between the plates, Energy stored in a capacitor.

    Unit 12:

    Current Electricity

    Electric current,Drift velocity, Ohm's law, Electrical resistance, Resistances of different materials, V-I characteristics of Ohmic and nonohmic 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.

    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 and electric fields. Cyclotron.

    Force on a current-carrying conductor in a uniform magnetic field. Force between two parallel current-carrying conductors-definition of ampere. Torque experienced by a current loop in uniform magnetic field; Moving coil galvanometer, its current sensitivity and conversion to ammeter and voltmeter.

    Current loop as a magnetic dipole and its magnetic dipole moment. Bar magnet as an equivalent solenoid, magnetic field lines; Earth's magnetic field and magnetic elements. Para-, dia- and ferro- magnetic substances.

    Magnetic susceptibility and permeability, Hysteresis, Electromagnets and permanent magnets.

    Unit 14:

    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.

    Unit 15:

    Electromagnetic Waves

    Electromagnetic waves and their characteristics. Transverse nature of electromagnetic waves.

    Electromagnetic spectrum (radio waves, microwaves, infrared, visible, ultraviolet, Xrays, 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.

    wavefront and Huygens' principle, Laws of reflection and refraction using Huygen's principle. Interference, Young's double slit experiment and expression for fringe width.

    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.

    Unit 17:

    Dual Nature of Matter and radiation

    Dual nature of radiation.

    Photoelectric effect, Hertz and Lenard's observations; Einstein's photoelectric equation; particle nature of light.

    Matter waves-wave nature of particle, de Broglie relation.

    Davisson-Germer experiment

    Unit 18:

    Atoms and Nuclei

    Alpha-particle scattering experiment; Rutherford's model of atom; Bohr model, energy levels, hydrogen spectrum.

    Composition and size of nucleus, atomic masses, isotopes, isobars; isotones.

    Radioactivity-alpha, beta and gamma particles/rays and their properties; radioactive decay law. Mass-energy relation, mass defect; binding energy per nucleon and its variation with mass number, nuclear fission and fusion.

    Unit 19:

    Electronic Devices

    Semiconductors; semiconductor diode: I-V characteristics in forward and reverse bias; diode as a rectifier; I-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.

    Unit 20:

    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).

    JEE Main 2020 Chemistry Syllabus

    The chemistry syllabus in JEE Main is divided into three sections.

    Physical Chemistry
    Organic Chemistry
    Inorganic Chemistry
    Physical Chemistry :

    Section A: Physical Chemistry

    CONTENTS OF Chemistry

    UNIT I:

    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 behaviour, compressibility factor and van der Waals equation

    Liquid State: Properties of liquids -vapour 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, magnetic and dielectric 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, de-Broglie's relationship, Heisenberg uncertainty principle.

    Elementary ideas of quantum mechanics, quantum mechanical model of atom, its important features, concept of atomic orbitals as one electron wave functions

    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.

    Unit 4:

    Chemical Bonding and Molecular Strucure

    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.

    Unit 5:

    Chemical Thermodynamics

    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

    DS of the universe and DG of the system as criteria for spontaneity, Dgo (Standard Gibbs energy change) and equilibrium constant

    Unit 5:

    Chemical Thermodynamics

    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

    DS of the universe and DG of the system as criteria for spontaneity, Dgo (Standard Gibbs energy change) and equilibrium constant

    Unit 6:

    Solutions

    Different methods for expressing concentration of solution -molality, molarity, mole fraction, percentage (by volume and mass both), vapour pressure of solutions and Raoult's Law -Ideal and non-ideal solutions, vapour pressure -composition, plots for ideal and non-ideal solutions

    Colligative properties of dilute solutions -relative lowering of vapour pressure, depression of freezing point, elevation of boiling point and osmotic pressure

    Determination of molecular mass using colligative properties; Abnormal value of molar mass, van't Hoff factor and its significance

    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 characterics of equilibrium involving physical processes.

    Equilibria involving chemical processes: Law of chemical equilibrium, equilibrium constants (Kp and Kc) and their significance, significance of DG and DGo 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.

    Eectrolytic and metallic conduction, conductance in electrolytic solutions, specific and 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:

    Chemical Kinetics

    Rate of a chemical reaction, factors affecting the rate of reactions: concentration, temperature, pressure and catalyst

    elementary and complex reactions, order and molecularity of reactions, rate law, rate constant and its units, differential and integral forms ofzero 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).

    Unit 10:

    Surface Chemistry

    Adsorption- Physisorption and chemisorption and their characteristics, factors affecting adsorption of gases on solids -Freundlich and Langmuir adsorption isotherms, adsorption from solutions.

    Colloidal state- distinction among true solutions, colloids and suspensions, classification of colloids -lyophilic, lyophobic

    multi molecular, macromolecular and associated colloids (micelles), preparation and properties of colloids -Tyndall effect, Brownian movement, electrophoresis, dialysis, coagulation and flocculation

    Emulsions and their characteristics

    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

    Hydrogen as a fuel

    Unit 14:

    S -Block Elements (Alkali and Alkaline Earth Metals)

    Preparation and properties of some important compounds -sodium carbonate and sodium hydroxide; 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 behaviour of the first element in each group.

    GroupWise study of the p -block elements

    Group -13: Preparation, properties and uses of boron and aluminium; properties of boric acid, diborane, boron trifluoride, aluminium chloride and alums.

    Group -14: Allotropes of carbon, tendency for catenation; Structure & properties of silicates, and zeolites.

    Group -15: Properties and uses of nitrogen and phosphorus; Allotrophic forms of phosphorus; Preparation, properties, structure and uses of ammonia, nitric acid, phosphine and phosphorus halides, (PCl3, PCl5); Structures of oxides and oxoacids of 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 behaviour, magnetic properties, complex formation, interstitial compounds, alloy formation; Preparation, properties and uses of K2 Cr2 O7 and KMnO4 .

    Inner Transition Elements: Lanthanoids -Electronic configuration, oxidation states and lanthanoid contraction.

    Actinoids -Electronic configuration and oxidation states.

    Unit 17:

    Co-Ordination Compounds

    Introduction to co-ordination compounds, Werner's theory

    ligands, co-ordination number, denticity, chelation; IUPAC nomenclature of mononuclear co-ordination compounds, isomerism

    Bonding-Valence bond approach and basic ideas of Crystal field theory, colour and magnetic properties; Importance of co-ordination 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.


    Section C: 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: -C = C –, -C h C -and those containing halogens, oxygen, nitrogen and sulphur; Homologous series; Isomerism -structural and stereoisomerism.

    Nomenclature (Trivial and IUPAC) Covalent bond fission -Homolytic and heterolytic: free radicals, carbocations and carbanions; stability of carbocations and free radicals, electrophiles and nucleophiles. Electronic displacement in a covalent bond -Inductive effect, electromeric effect, resonance and hyperconjugation.

    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 Halogens

    General methods of preparation, properties and reactions; Nature of C-X bond; Mechanisms of substitution reactions.

    Uses; Environmental effects of chloroform & iodoform.

    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.

    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); acidity of r -hydrogen, aldol condensation, Cannizzaro reaction, Haloform reaction; Chemical tests to distinguish between aldehydes and Ketones.

    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 polymerization-addition and condensation, copolymerization

    Natural and synthetic rubber and vulcanization

    Some important polymers with emphasis on their monomers and uses -polythene, nylon, polyester and bakelite.

    UNIT 26:

    Biomolecules

    General introduction and importance of biomolecules.

    Carbohydrates -Classification: aldoses and ketoses; monosaccharides (glucose and fructose) and constituent monosaccharides of oligosacchorides (sucrose, lactose and maltose).

    Proteins -Elementary Idea of r -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, antihistamins -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 CHEMISTR

    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 excercises -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+. Anions- CO3 2-, S2-, SO4 2-, 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.
  • Kinetic study of reaction of iodide ion with hydrogen peroxide at room temperature.
  • Syllabus for Paper-2 (B. Arch/ Planning) -Aptitude Test:
    Candidates can check topic wise syllabus for Part I and II.

    PartI:

    CONTENTS

    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, ect.), landscape (river fronts, jungles, trees, plants, etc.) and rural life.

    UNIT II:

    Current Electricity

    Electric current, flow of electric charges in a metallic conductor, drift velocity and mobility, and their relation with electric current; Ohm's law, electrical resistance, V-I characteristics (linear and nonlinear), electrical energy and power, electrical resistivity and conductivity.

    Carbon resistors, color code for carbon resistors; series and parallel combinations of resistors; temperature dependence of resistance.

    Internal resistance of a cell, potential difference and emf of a cell, combination of cells in series and in parallel.

    Kirchhoff's laws and simple applications. Wheatstone bridge, Metre Bridge.

    Potentiometer-principle and applications to measure potential difference, and for comparing emf of two cells; measurement of internal resistance of a cell.

    UNIT III:

    Magnetic Effects of Current and Magnetism

    Concept of magnetic field, Oersted's experiment. Biot-Savart law and its application to current carrying circular loop.

    Ampere's law and its applications to infinitely long straight wire, straight and toroidal solenoids. Force on a moving charge in uniform magnetic and electric fields. Cyclotron.

    Force on a current-carrying conductor in a uniform magnetic field. Force between two parallel current-carrying conductors-definition of ampere. Torque experienced by a current loop in a 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. Magnetic dipole moment of a revolving electron. Magnetic field intensity due to a magnetic dipole (bar magnet) along its axis and perpendicular to its axis. Torque on a magnetic dipole (bar magnet) in a uniform magnetic field; bar magnet as an equivalent solenoid, magnetic field lines; Earth's magnetic field and magnetic elements.

    Para-, dia-and ferro-magnetic substances, with examples.

    Electromagnetic and factors affecting their strengths. Permanent magnets.

    UNIT IV:

    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; LC oscillations (qualitative treatment only), LCR series circuit, resonance; power in AC circuits, wattles current.

    AC generator and transformer.

    UNIT V:

    Electromagnetic Waves

    Need for displacement current.

    Electromagnetic waves and their characteristics (qualitative ideas only). Transverse nature of electromagnetic waves.

    Electromagnetic spectrum (radio waves, microwaves, infrared, visible, ultraviolet, x-rays, gamma rays) including elementary facts about their uses.

    UNIT VI:

    Optics

    Reflection of light, spherical mirrors, mirror formula. Refraction of light, total internal reflection and its applications optical fibres, refraction at spherical surfaces, lenses, thin lens formula, lens-maker's formula. Magnification, power of a lens, combination of thin lenses in contact combination of a lens and a mirror. Refraction and dispersion of light through a prism.

    Scattering of light- blue colour of the sky and reddish appearance of the sun at sunrise and sunset. Optical instruments: Human eye, image formation and accommodation, correction of eye defects (myopia and hypermetropia) using lenses.

    Microscopes and astronomical telescopes (reflecting and refracting) and their magnifying powers.

    Wave optics: Wavefront and Huygens' principle, reflection and refraction of plane wave at a plane surface using wavefronts.

    Proof of laws of reflection and refraction using Huygens' principle.

    Interference, Young's double hole 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.

    UNIT VII:

    Dual Nature of Matter and Radiation

    Photoelectric effect, Hertz and Lenard's observations; Einstein's photoelectric equation- particle nature of light.

    Matter waves- wave nature of particles, de Broglie relation. Davisson-Germer experiment (experimental details should be omitted; only conclusion should be explained).

    UNIT VIII:

    Atoms and Nuclei

    Alpha- particle scattering experiments; Rutherford's model of atom; Bohr model, energy levels, hydrogen spectrum. Composition and size of nucleus, atomic masses, isotopes, isobars; isotones.

    Radioactivity- alpha, beta and gamma particles/ rays and their properties decay law. Mass-energy relation, mass defect; binding energy per nucleon and its variation with mass number, nuclear fission and fusion

    UNIT IX:

    Electronic Devices

    Energy bands in solids (qualitative ideas only), conductors, insulators and semiconductors; semiconductor diode- I-V characteristics in forward and reverse bias, diode as a rectifier; I-V characteristics of LED, diode, 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.

    JEE Syllabus 2020 for Chemistry

    Class XI

    Class XII

    Some Basic Concepts of Chemistry

    Solid State

    Structure of Atom

    Solutions

    Classification of Elements and Periodicity in Properties

    Electrochemistry

    Chemical Bonding and Molecular Structure

    Chemical Kinetics

    States of Matter: Gases and Liquids

    Surface Chemistrys

    Thermodynamics

    General Principles and Processes of Isolation of Elements

    Equilibrium

    p- Block Elements

    Redox Reactions

    d and f Block Elements

    Hydrogen

    Coordination Compounds

    s-Block Element (Alkali and Alkaline earth metals)

    Haloalkanes and Haloarenes

    Some p-Block Elements

    Alcohols, Phenols and Ethers

    Organic Chemistry- Some Basic Principles and Techniques

    Aldehydes, Ketones and Carboxylic Acids

    Hydrocarbons

    Organic Compounds Containing Nitrogen

    Environmental Chemistry

    Biomolecules


    CHEMISTRY: CONTENTS OF CLASS XI SYLLABUS

    CHEMISTRY:

    CONTENTS OF CLASS XI SYLLABUS

    UNIT I:

    Some Basic Concepts of Chemistry

    General Introduction: Important and scope of chemistry.

    Laws of chemical combination, Dalton's atomic theory: concept of elements, atoms and molecules.

    Atomic and molecular masses. Mole concept and molar mass; percentage composition and empirical and molecular formula; chemical reactions, stoichiometry and calculations based on stoichiometry.

    UNIT II:

    Structure of Atom

    Atomic number, isotopes and isobars. Concept of shells and subshells, dual nature of matter and light, de Broglie's relationship, Heisenberg uncertainty principle, concept of orbital, quantum numbers, shapes of s,p and d orbitals, rules for filling electrons in orbitals- Aufbau principle, Pauli exclusion principles and Hund's rule, electronic configuration of atoms, stability of half-filled and completely filled orbitals.

    UNIT III:

    Classification of Elements and Periodicity in Properties 48

    Modern periodic law and long form of periodic table, periodic trends in properties of elements atomic radii, ionic radii, ionization enthalpy, electron gain enthalpy, electrone gativity, valence.

    UNIT IV:

    Chemical Bonding and Molecular Structure

    Valence electrons, ionic bond, covalent bond, bond parameters, Lewis structure, polar character of covalent bond, valence bond theory, resonance, geometry of molecules, VSEPR theory, concept of hybridization involving s, p and d orbitals and shapes of some simple molecules, molecular orbital theory of homonuclear diatomic molecules (qualitative idea only). Hydrogen bond..

    UNIT V:

    States of Matter: Gases and Liquids

    Three states of matter, intermolecular interactions, types of bonding, melting and boiling points, role of gas laws of elucidating the concept of the molecule, Boyle's law, Charle's law, Gay Lussac's law, Avogadro's law, ideal behaviour of gases, empirical derivation of gas equation. Avogadro number, ideal gas equation. Kinetic energy and molecular speeds (elementary idea), deviation from ideal behaviour, liquefaction of gases, critical temperature.

    Liquid State- Vapour pressure, viscosity and surface tension (qualitative idea only, no mathematical derivations).

    UNIT VI:

    Thermodynamics

    First law of thermodynamics-internal energy and enthalpy, heat capacity and specific heat, measurement of U and H, Hess's law of constant heat summation, enthalpy of : bond dissociation, combustion, formation, atomization, sublimation, phase transition, ionization, solution and dilution.

    Introduction of entropy as state function, Second law of thermodynamics, Gibbs energy change for spontaneous and non-spontaneous process, criteria for equilibrium and spontaneity.

    Third law of thermodynamics- Brief introduction.

    UNIT VII:

    Equilibrium

    Equilibrium in physical and chemical processes, dynamic nature of equilibrium, law of chemical equilibrium, equilibrium constant, factors affecting equilibrium- Le Chatelier's principle; ionic equilibrium- ionization of acids and bases, strong and weak electrolytes, degree of ionization, ionization of polybasic acids, acid strength, concept of pH., Hydrolysis of salts (elementary idea)., buffer solutions, Henderson equation, solubility product, common ion effect (with illustrative examples).

    UNIT VIII:

    Redox Reactions

    Concept of oxidation and oxidation and reduction, redox reactions oxidation number, balancing redox reactions in terms of loss and gain of electron and change in oxidation numbers.

    UNIT IX:

    Hydrogen

    EOccurrence, isotopes, preparation, properties and uses of hydrogen; hydridesionic, covalent and interstitial; physical and chemical properties of water, heavy water; hydrogen peroxide-preparation, reactions, uses and structure;

    UNIT X:

    s-Block Elements (Alkali and Alkaline earth metals)

    Group I and group 2 elements:

    General introduction, electronic configuration, occurrence, anomalous properties of the first element of each group, diagonal relationship, trends in the variation of properties (such as ionization enthalpy, atomic and ionic radii), trends in chemical reactivity with oxygen, water, hydrogen and halogens; uses.

    Preparation and Properties of Some important Compounds:

    Sodium carbonate, sodium chloride, sodium hydroxide and sodium hydrogen carbonate, biological importance of sodium and potassium.

    Industrial use of lime and limestone, biological importance of Mg and Ca.

    UNIT XI:

    Some p-Block Elements

    General Introduction to p-Block Elements.

    Group 13 elements: General introduction, electronic configuration, occurrence, variation of properties, oxidation states, trends in chemical reactivity, anomalous properties of first element of the group; Boron, some important compounds: borax, boric acids, boron hydrides. Aluminium: uses, reactions with acids and alkalies.

    General 14 elements: General introduction, electronic configuration, occurrence, variation of properties, oxidation states, trends in chemical reactivity, anomalous behaviour of first element. Carbon, allotropic forms, physical and chemical properties: uses of some important compounds: oxides.

    Important compounds of silicon and a few uses: silicon tetrachloride, silicones, silicates and zeolites, their uses.

    UNIT XII:

    Organic Chemistry- Some Basic Principles and Techniques

    General introduction, methods of purification qualitative and quantitative analysis, classification and IUPAC nomenclature of organic compounds.

    Electronic displacements in a covalent bond: inductive effect, electromeric effect, resonance and hyper conjugation.

    Homolytic and heterolytic fission of a covalent bond: free radials, carbocations, carbanions; electrophiles and nucleophiles, types of organic reactions.

    UNIT XIII:

    Hydrocarbons

    Alkanes- Nomenclature, isomerism, conformations (ethane only), physical properties, chemical reactions including free radical mechanism of halogenation, combustion and pyrolysis.

    Alkanes-Nomenclature, structure of double bond (ethene), geometrical isomerism, physical properties, methods of preparation: chemical reactions: addition of hydrogen, halogen, water, hydrogen halides (Markovnikov's addition and peroxide effect), ozonolysis, oxidation, mechanism of electrophilic addition.

    Alkynes-Nomenclature, structure of triple bond (ethyne), physical properties, methods of preparation, chemical reactions: acidic character of alkynes, addition reaction of- hydrogen, halogens, hydrogen halides and water.

    Aromatic hydrocarbons- Introduction, IUPAC nomenclature; Benzene; resonance, aromaticity; chemical properties: mechanism of electrophilic substitution-Nitration sulphonation, halogenation, 50 Friedel Craft's alkylation and acylation; directive influence of functional group in mono-substituted benzene; carcinogenicity and toxicity.

    UNIT XIV:

    Environmental Chemistry

    Environmental pollution: Air, water and soil pollution, chemical reactions in atmosphere, smogs, major atmospheric pollutants; acid rain ozone and its reactions, effects of depletion of ozone layer, greenhouse effect and global warming-pollution due to industrial wastes; green chemistry as an alternative tool for reducing pollution, strategy for control of environmental pollution.

    CHEMISTRY: CONTENTS OF CLASS XII SYLLABUS

    CHEMISTRY:

    CONTENTS OF CLASS XII SYLLABUS

    UNIT I:

    Solid State

    Classification of solids based on different binding forces; molecular, ionic covalent and metallic solids, amorphous and crystalline solids (elementary idea), unit cell in two dimensional and three dimensional lattices, calculation of density of unit cell, packing in solids, packing efficiency, voids, number of atoms per unit cell in a cubic unit cell, point defects, electrical and magnetic properties, Band theory of metals, conductors, semiconductors and insulators.

    UNIT II:

    Solutions

    Types of solutions, expression of concentration of solutions of solids in liquids, solubility of gases in liquids, solid solutions, colligative properties- relative lowering of vapour pressure, Raoult's law, elevation of boiling point, depression of freezing point, osmotic pressure, determination of molecular masses using colligative properties abnormal molecular mass. Van Hoff factor.

    UNIT III:

    Electrochemistry

    Redox reactions, conductance in electrolytic solutions, specific and molar conductivity variation of conductivity with concentration, kohlrausch's Law, electrolysis and Laws of electrolysis (elementary idea), dry cell- electrolytic cells and Galvanic cells; lead accumulator, EMF of a cell, standard electrode potential, Relation between Gibbs energy change and EMF of a cell, fuel cells; corrosion.

    UNIT IV:

    Chemical Kinetics

    Rate of a reaction (average and instantaneous), factors affecting rates of reaction; concentration, temperature, catalyst; order and molecularity of a reaction; rate law and specific rate constant, integrated rate equations and half-life (only for zero and first order reactions); concept of collision theory ( elementary idea, no mathematical treatment). Activation energy, Arrhenious equation.

    UNIT V:

    Surface Chemistry

    Adsorption-physisorption and chemisorption; factors affecting adsorption of gases on solids, catalysis homogeneous and heterogeneous, activity and selectivity: enzyme catalysis; colloidal state: distinction between true solutions, colloids and suspensions; lyophillic, lyophobic multimolecular and macromolecular colloids; properties of colloids; Tyndall effect, Brownian movement, electrophoresis, coagulation; emulsions- types of emulsions.

    UNIT VI:

    General Principles and Processes of Isolation of Elements

    Principles and methods of extraction- concentration, oxidation, reduction electrolytic method and refining; occurrence and principles of extraction of aluminium, copper, zinc and iron.

    UNIT VII:

    p- Block Elements

    Group 15 elements: General introduction, electronic configuration, occurrence, oxidation states, trends in physical and chemical properties; preparation and properties of ammonia and nitric acid, oxides of nitrogen (structure only); Phosphorous- allotropic forms; compounds of phosphorous: preparation and properties of phosphine, halides (PCI3, PCI5) and oxoacids (elementary idea only).

    Group 16 elements: General introduction, electronic configuration, oxidation states, occurrence, trends in physical and chemical properties; dioxygen: preparation, properties and uses; classification of oxides; ozone. Sulphur - allotropic forms; compounds of sulphur: preparation, preparation, properties and uses of sulphur dioxide; sulphuric acid: industrial process of manufacture, properties and uses, oxoacids of sulphur (structures only).

    Group 17 elements: General introduction, electronic configuration, oxidation states, occurrence, trends in physical and chemical properties; compounds of halogens: preparation, properties and uses of chlorine and hydrochloric acid, interhalogen compounds oxoacids of halogens (structures only).

    Group 18 elements: General introduction, electronic configuration, occurrence, trends in physical and chemical properties, uses.

    UNIT VIII:

    d and f Block Elements

    General introduction, electronic configuration, characteristics of transition metals, general trends in properties of the first row transition metals- metallic character, ionization enthalpy, oxidation states, ionic radii, colour, catalytic property, magnetic properties, interstitial compounds, alloy formation. Preparation and properties of K2Cr2O7 and KMnO4

    Lanthanoids- electronic configuration, oxidation states, chemical reactivity, and lanthanoid contraction and its consequences.

    Actinoids: Electronic configuration, oxidation states and comparison with lanthanoids.

    UNIT IX:

    Coordination Compounds

    Coordination compounds: Introduction, ligands, coordination number, colour, magnetic properties and shapes, IUPAC nomenclature of mononuclear coordination compounds, isomerism (structural and stereo) bonding, Werner's theory VBT, CFT; importance of coordination compounds (in qualitative analysis, biological systems).

    UNIT X:

    Haloalkanes and Haloarenes

    Haloalkanes: Nomenclature, nature of C -X bond, physical and chemical properties, mechanism of substitution reactions. Optical rotation.

    Haloarenes: Nature of C-X bond, substitution reactions (directive influence of halogen for monosubstituted compounds only).

    Uses and environment effects of - dichloromethane, trichloromethane, tetra chloromethane, iodoform, freons, DDT.

    UNIT XI:

    Alcohols, Phenols and Ethers

    Alcohols: Nomenclature, methods of preparation, physical and chemical properties (of primary alcohols only); identification of primary, secondary and tertiary alcohols; mechanism of dehydration, uses with special reference to methanol and ethanol.

    Phenols: Nomenclature, methods of preparation, physical and chemical properties, acidic nature of phenol, electrophillic substitution reactions, uses of phenols.

    Ethers: Nomenclature, methods of preparation, physical and chemical properties uses.

    UNIT XII:

    Aldehydes, Ketones and Carboxylic Acids

    Aldehydes and Ketones: Nomenclature, nature of carbonyl group, methods of preparation, physical and chemical properties; and mechanism of nucleophilic addition, reactivity of alpha hydrogen in aldehydes; uses.

    Carboxylic Acids: Nomenclature, acidic nature, methods of preparation, physical and chemical properties; uses.

    UNIT XIII:

    Organic Compounds Containing Nitrogen

    Amines: Nomenclature, classification, structure, methods of preparation, physical and chemical properties, uses, identification of primary secondary and tertiary amines.

    Cyanides and Isocyanides- will be mentioned at relevant places.

    Diazonium salts: Preparation, chemical reactions and importance in synthetic organic chemistry.

    UNIT XIV:

    Biomolecules

    Carbohydrates- Classification (aldoses and ketoses), monosaccharide (glucose and fructose), D.L. configuration, oligosaccharides (sucrose, lactose, maltose), polysaccharides (starch, cellulose, glycogen): importance.

    Proteins- Elementary idea of - amino acids, peptide bond, polypeptides, proteins, primary structure, secondary structure, tertiary structure and quaternary structure (qualitative idea only), denaturation of proteins; enzymes.

    Hormones- Elementary idea (excluding structure).

    Vitamins- Classification and function.

    Nucleic Acids: DNA and RNA.

    UNIT XVI:

    Chemistry in Everyday Life

    Chemicals in medicines- analgesics, tranquilizers, antiseptics, disinfectants, antimicrobials, antifertility drugs, antibiotics, antacids, antihistamines.

    Chemicals in food- preservatives, artificial sweetening agents, elementary idea of antioxidants.

    Cleansing agents- soaps and detergents, cleansing action.

        

Best books for preparation of JEE 2020
    Books for JEE Main Mathematics:
  • NCERT Textbooks (for Class XI and XII)
  • Objective Mathematics by R D Sharma
  • Complete mathematics for JEE Main TMH
  • Differential Calculus by Amit M Agarwal (Arihant Publications)
  • Integral Calculus by Amit M Agarwal (Arihant Publications)
  • Play with Graphs by Amit M Agarwal (Arihant Publications)
  • Books for JEE Main Physics:
  • NCERT Textbooks (for Class XI and XII)
  • Concepts of physics (Vol. 1 and 2) by H.C Verma
  • Understanding Physics by D C Pandey (Arihant Publications)
  • Problems in physics by SS Krotov
  • Books for JEE Main Chemistry
  • NCERT Textbooks (for Class XI and XII)
  • Organic Chemistry by O P Tandon
  • Physical Chemistry by P.W. Atkins
  • Concise Inorganic Chemistry by J D Lee

        

JEE Main Cut Off 2020

    The result has been declared on 11 September 2020, and the category wise cut-off of the total NTA score For JEE Advanced based on Paper 1 is as follows:

    Category

    Cut-off score

    Common Rank List (CRL)

    90.3765335

    Economically Weaker Section (EWS)

    70.2435518

    Other Backward Class (OBC-NCL)

    72.8887969

    Scheduled Caste (SC)

    50.1760245

    Scheduled Tribe (ST)

    39.0696101

    People with Disability (PwD)

    0.0618524

    The rank of the candidates has been decided keeping in mind the better of the two NTA scores of all the candidates appearing in the JEE (Main) JAN 2020 and APRIL / SEPTEMBER 2020 examinations. And as per the policy already available on the website.

    JEE Main cut off 2020 is determined based on the number of seats, previous years cut off, the total number of candidates, the difficulty level of the exam and the total number of qualified candidates.

    JEE Main 2020 cut off ranks is of two types:

    The qualifying cut off- Candidates who can achieve the qualifying cut off marks in JEE Main are eligible for JEE Advanced.

    Admission cut off- Individuals who score minimum marks under the admission cut-off are eligible to present their candidature for admission in IITs.

    The marks obtained in JEE Main 2020 will be generalized for ranking. The NTA will rank students based on their percentile marks, which will be calculated according to a pre-determined formula. i.e.

    Total Percentile = 100 x (No.of candidates appeared from the session with raw score@ EQUAL TO OR LESS than T1 score)/(Total No.of candidates appeared in the session )

    Maths Percentile = 100 x (No.of candidates appeared from the session with raw score@ EQUAL TO OR LESS than M1 score in Maths)/(Total No.of candidates appeared in the session )

    Physics Percentile = 100 x (No.of candidates appeared from the session with raw score@ EQUAL TO OR LESS than P1 score in Physics)/(Total No.of candidates appeared in the session )

    Chemistry Percentile = 100 x (No.of candidates appeared from the session with raw score@ EQUAL TO OR LESS than C1 score in Chemistry)/(Total No.of candidates appeared in the session )

        

JEE Previous Year Question Papers

    With the help of previous years question papers, candidates will get familiar with exam pattern, types of questions and weightage of questions. NCERT (11th & 12th) is the best book for preparation of JEE Main along with previous years question papers. This will help the candidate to score 200 plus marks. Physics is the most difficult section amongst all, but solving previous years question papers will reduce the difficulty level of the candidates and give a clear picture of the exam.

    By regularly practising the previous year's question papers, students will develop a better understanding of the concepts. All the previous year's question papers are in PDF format and easy to download.

    Strategies to prepare for JEE Mains 2020
    Know about JEE Main:

    JEE Main 2020 is a national-level computer-based engineering entrance exam conducted by NTA (National Test Agency) for the purpose of admission to various colleges in India, such as Indian Institute of Technology, National Institute of Technology, Indian Institute of Information Technology and other Government funded technical Institutes.

    Check the syllabus and plan your studies accordingly:

    Before starting the preparation candidates should know what is given in the syllabus. Accordingly, we should plan our studies. Whenever we start our studies, there is only one thought comes to mind - how much we have to study and for how long? If your base of 11th and 12th class is clear, then you do not have to work that hard. And if it is not, then it is important to give 4 hours daily.

    Prepare a timetable

    We should make the timetable of studies - according the subject's weightage. If we know that mathematics takes more time and other subjects takes less time, then we will have to prepare our timetable accordingly as per the most preferred subject.

    JEE is said to have a wide syllabus due to countless number of topics in Mathematics. Apart from this, the mathematics syllabus for JEE Main, Advanced and Board exams is different. As a result, managing time and study as per the syllabus is going to be more challenging for the candidates. So in this what you need is more and more practice.

    Physics is the most difficult subject and entirely based on concepts and logics. Sometimes the subject can be difficult, especially when the questions start to be more conceptual. This is the reason that children stressed up before completing it fully.

    Chemistry needed a lot of memorization and it is divided into three parts: Physical chemistry, Organic chemistry and Inorganic chemistry. To learn and memorize chemistry you need to be more focused and logical at the same time.

    It is really important to know the difficulty level of the question and weightage of different subjects.

    Study Materials

    For physics and chemistry NCERT is the best books to start with your preparation. But for maths, candidates can refer other books. Below are some reference books candidates can choose to start their preparations:

        

JEE Main Result 2020

    The NTA will evaluate the answer sheets using standard procedure, and after that, candidates can download their respective result sheets. All the candidates appearing in 2020 should regularly check for updates on the jeemain.nta.nic.in.

    The JEE Main 2020 paper 1 result has been declared on 11 September 2020 on jeemain.nta.nic.in. To see the result of JEE Main 2020, candidates have to enter their application number and date of birth in the given field. 24 candidates have obtained 100 percentile in the examination.

    The candidate will get two attempts (First attempt and Second attempt before qualifying to the next academic session. The first attempt was conducted in 6 shifts from 7 to 9 January 2020 and the second attempt in 10 shifts from 2 to 6 September. The exam was held in 660 centres in 232 cities including 8 outside India and was monitored by the central control room, third party audit, under CCTV surveillance, a total of 2500 jammers were placed to prevent cheating.

    Category wise list of candidates appeared:
    Category Number of candidates appeared
    General 3.91 lakhs
    EWS 0.95 lakhs
    SC 0.97 lakhs
    ST 0.38 lakhs
    OBC(NCL) 4.02 lakhs
    TOTAL 10.23 lakhs

    The result will be calculated based on the final answer key declared. The final answer key has also declared on 11 September 2020. The result is in PDF format. Candidates can view them online or download by visiting the link mentioned above.

        

JEE FAQs

    Why JEE?

    The Joint Entrance Examination is a national level engineering entrance exam held twice a year for admission of to various engineering colleges in India. The National Testing Agency conducts it.

    What are the two exams that come under JEE?

    Joint Entrance Exam is formed by two separate exams- JEE Main and JEE Advanced.

    JEE is conducted by which Agency?

    The Joint Entrance Examination (JEE) is a national-level computer-based engineering entrance exam conducted by NTA (National Test Agency) for admission to various colleges in India, such as Indian Institute of Technology, National Institute of Technology, Indian Institute of Information Technology and other Government funded technical Institutes.

    What are the institutions that come under JEE Main?

    NITs, IIEST, IIITs and Other-GFTIs

    What are the Institutions comes under JEE Advance?

    IITs

    How many papers are there in JEE Main?

    JEE Mains comprises of two papers, Paper-I and Paper-II. Candidates can choose either of the two. Both papers have multiple-choice questions. Paper I is for the admission in B.E./B.Tech courses. Paper-II is for the admission in B.Arch and B.Planning courses.

    Are both papers mandatory in JEE Main?

    Candidates can choose either of the two.

    When Jain Main was conducted

    JEE Main 2020 is already conducted from 1 to 6 September 2020

    when its result was declared?

    The result is released on 10 September on the official website of JEE Mains 2020 jeemain.nta.ac.in.

    Which 3rd paper is introduced in JEE Main?

    From January 2020: One additional paper (Paper III) is introduced for B. Planning students i.e. Drawing test, which will be conducted in offline mode (pen-paper based).

    For many year result is valid?

    The validity of the result is one year.

    Will candidates get the same sets of papers?

    Candidates will not get the same sets of question papers.

    What is normalization procedure?

    The normalization process is an established practice prescribed by NTA for comparing candidate scores in multi-session papers adopted in other large academic selection tests conducted in India. In simple terms, if we say. To ensure a candidate is at no loss or even get benefit from this procedure.

    How is NTA rank calculated?

    The NTA will rank students based on their percentile marks, which will be calculated according to a pre-determined formula. I.e.

    How merit ranking is determined when there is a tie?

    1. If the candidate is acquiring equal marks/percentile, then among themselves merit will be determined to below sequence: · Candidate acquiring higher marks/percentile in Maths - Candidate acquiring higher marks/percentile in Physics · Candidate acquiring higher marks/percentile in chemistry · Candidate who is older
    2. The final ranking will be done after the tie is resolved.

    What is the process of JEE Main registration?

    The below 5 steps to be followed to fill the registration form 1. Fill online form 2. Upload documents 3. Select the exam centre 4. Payment 5. Submit

    In how many centres, the Exam was conducted?

    The Exam was conducted in a total of 605 centres

    How is NTA rank calculated?

    The NTA will rank students based on their percentile marks, which will be calculated according to a pre-determined formula. I.e.

    How many candidates appeared in the Exam?

    Over 8, 58,273 candidates have appeared in the Exam.

    What is the pattern of the Exam?

    . JEE Main 2020 consists of 3 main subjects, namely, Mathematics, Physics and Chemistry. Paper 1 is for admission in B.E. /B. Tech. Courses- In paper
    1- there are 25 questions from Mathematics, 25 from Physics and 25 from Chemistry; therefore, the total number of questions is 75. Each question will carry 4 marks, and each incorrect response gets -1 negative marking. The duration of the Exam is 3 hours (180 minutes). No negative marking is done for numerical questions. The maximum marks in the Exam are 300.Paper
    2 is for admission in B. Arch - In paper 2- there are 25 questions from Mathematics, 50 from Aptitude test, 2 from Drawing Test; therefore, the total number of questions is 77. Each question will carry 4 marks, and each incorrect response gets -1 negative marking. The duration of the Exam is 3.30 hours. No negative marking is done for numerical questions. The maximum marks in the Exam are 400. Paper
    3 is for admission in B. Planning courses- In paper 3- there are 25 questions from Mathematics, 50 from Aptitude test, 25 from Planning Based Objective Type MCQs, therefore, the total number of questions is 100. Each question will carry 4 marks, and each incorrect response gets -1 negative marking. The duration of the Exam is 3.30 hours (180 minutes). No negative marking is done for numerical questions. The maximum marks in the Exam are 400.

    is there any negative marking for the numerical question?

    No negative marking is done for numerical questions.

    is there any age criteria set for JEE - Main?

    There is no age criteria for the candidates in JEE Main.

    Is NCERT important for JEE Main?

    NCERT is the most important textbook to prepare for JEE Main.

    Who conducts JEE counselling?

    In JEE, the joint admission process conducted by Joint Seat Allocation Authority (JoSAA) 2020 for a total of 111 institutes for the academic year 2020-21.

    How to register for JEE Main counselling?

    To register for JEE Main counselling below procedure to be followed:-
    1. Online registration
    2. Choice filling and locking
    3. Seat allotment
    4. Seat acceptance and Fee payment
    5. Document Verification
    6. Reporting to the allotted college

    Who announced the dates of counselling and when?

    Joint Seat Allocation Authority (JoSAA) 2020 has announced counselling, starting from 6 October 2020.

    When the result was declared?

    The JEE Main 2020 paper 1 result has been reported on 11 September 2020 on jeemain.nta.nic.in.

    Any dress code for JEE Main?

    No, there is no as such dress code for JEE Mains. The only restrictions are for cap, scarf, jewellery, stoles, metallic items, etc.