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JEE Main 2020 8th January Evening Shift

Browse the complete Chemistry, Mathematics, and Physics question set from the JEE Main 2020 8th January Evening Shift paper, question by question. Each question shows a quick preview so you can jump straight to the topic or subject you want to revise. Click through to attempt the full question in practice mode, or head back to the paper-wise list to download the entire shift as a PDF.

This paper has 75 questions in total - 24 easy (32%), 34 moderate (45%) and 17 tough (23%). That's a fairly typical mix for this exam. By subject: Physics 36% easy, 28% moderate, 36% tough; Chemistry 40% easy, 48% moderate, 12% tough; Mathematics 20% easy, 60% moderate, 20% tough.

Chemistry questions were spread across 20 chapters, with Coordination Compounds (3), Hydrocarbons (3), and Chemical Bonding and Molecular Structure (2) carrying the most weight. Mathematics questions were spread across 22 chapters, with Application of Derivatives (2), Definite Integration (2), and Sequences and Series (2) carrying the most weight. Physics questions were spread across 22 chapters, with Center of Mass Momentum and Collision (2), Current Electricity (2), and Motion In One Dimension (2) carrying the most weight.

Chemistry

  1. 1The correct order of the calculated spin-only magnetic moments of complexes A to D is: A N i C O 4 B N i H 2 O 6 C l 2 C N a 2 N i C N 4 D P08 Jan, 2020 (E)Chemical reactions for aldehydes and ketones
  2. 2The major product in the following reaction is:08 Jan, 2020 (E)Reduction to Crude Metal
  3. 3Among the reactions a - d , the reaction(s) that does/do not occur in the blast furnace during the extraction of iron is/are: a C a O + S i 08 Jan, 2020 (E)Preparation and Properties of Hydrogen
  4. 4Hydrogen has three isotopes A , B and C . If the number of neutron(s) in A , B and C respectively, are x , y and z , the sum of x , y and z 08 Jan, 2020 (E)Properties of D-block elements
  5. 5For the following Assertion and Reason, the correct option is: Assertion: For hydrogenation reactions, the catalytic activity increases from08 Jan, 2020 (E)Disaccharides and Polysaccharides
  6. 6Two monomers in maltose are:08 Jan, 2020 (E)Preparation and Properties of Polymers
  7. 7Preparation of Bakelite proceeds via reactions:08 Jan, 2020 (E)Bohr's model
  8. 8The radius of the second Bohr orbit, in terms of the Bohr radius, a 0 , in Li 2 + is:08 Jan, 2020 (E)Compounds of Alkaline Earth Metals
  9. 9A metal A on heating in nitrogen gas gives compound B . B on treatment with H 2 O gives a colourless gas which when passed through C u S O 408 Jan, 2020 (E)Isomerism of coordination compounds
  10. 10Among a - d , the complexes that can show geometrical isomerism are: a P t N H 3 3 C l + b P t N H 3 C l 5 - c P t N H 3 2 C l N O 2 d P t N08 Jan, 2020 (E)Arrhenius theory
  11. 11Consider the following plots of rate constant versus 1 T for four different reactions. Which of the following orders is correct for the acti08 Jan, 2020 (E)Reactions of alkenes
  12. 12The major product B in the following sequence of reactions is:08 Jan, 2020 (E)Werner's theory and Valence Bond Theory
  13. 13Arrange the following bonds according to their average bond energies in descending order: C - C l , C - B r , C - F , C - I08 Jan, 2020 (E)Molecular Orbital Theory
  14. 14Kjeldahl’s method cannot be used to estimate nitrogen for which of the following compounds?08 Jan, 2020 (E)Quantitative analysis of organic compounds
  15. 15Among the compounds A and B with molecular formula C 9 H 18 O 3 , A is having higher boiling point than B . The possible structures of A and08 Jan, 2020 (E)Van Der Waals Forces, Hydrogen Bonding and Metallic Bonding
  16. 16For the following Assertion and Reason, the correct option is: Assertion: The p H of water increases with increase in temperature. Reason: T08 Jan, 2020 (E)Ionic Product of Water
  17. 17Which of the following compounds is likely to show both Frenkel and Schottky defects in its crystalline form?08 Jan, 2020 (E)Stoichiometric defects
  18. 18White phosphorus on reaction with concentrated N a O H solution in an inert atmosphere of C O 2 gives phosphine and compound X . X on acidif08 Jan, 2020 (E)Phosphorus and Its Compounds
  19. 19An unsaturated hydrocarbon X absorbs two hydrogen molecules on catalytic hydrogenation, and also gives following reaction: X ii Zn H 2 O i O08 Jan, 2020 (E)Reactions of alkenes
  20. 20The increasing order of the atomic radii of the following elements is: a C b O c F d C l e B r08 Jan, 2020 (E)Periodic properties
  21. 21In the following sequence of reactions the maximum number of atoms present in molecule C in one plane is_______ A C u t u b e R e d h o t B 08 Jan, 2020 (E)Reactions of aromatic compounds
  22. 22For an electrochemical cell Sn s Sn 2 + aq , 1 M Pb 2 + aq , 1 M Pb s the ratio Sn 2 + Pb 2 + when this cell attains equilibrium is _______ 08 Jan, 2020 (E)Cells and Electrode Potential, Nernst Equation
  23. 23At constant volume, 4 m o l of an ideal gas when heated from 300 K to 500 K changes its internal energy by 5000 J . The molar heat capacity 08 Jan, 2020 (E)First Law and Basic Fundamentals of Thermodynamics
  24. 24Complexes M L 5 of metals N i and F e have ideal square pyramidal and trigonal bipyramidal geometries, respectively. The sum of the 90 o , 108 Jan, 2020 (E)Terminology of coordination compounds
  25. 25NaClO 3 is used, even in spacecrafts, to produce O 2 . The daily consumption of pure O 2 by a person in 492 L at 1 atm, 300 K . How much amo08 Jan, 2020 (E)Gas laws and Ideal Gas Equation

Mathematics

  1. 1The length of the perpendicular from the origin, on normal to the curve, x 2 + 2 x y - 3 y 2 = 0 , at the point 2 , 2 , is.08 Jan, 2020 (E)Tangent Normal
  2. 2Let a = i ^ - 2 j ^ + k ^ and b = i ^ - j ^ + k ^ , be two vectors. If c , is a vector such that b c = b a and c a = 0 , then c b , is equal08 Jan, 2020 (E)Product of 2 vectors
  3. 3The area (in sq. units) of the region x , y R 2 : x 2 y 3 - 2 x , is.08 Jan, 2020 (E)Area bounded by two curves
  4. 4If A = 2 2 9 4 and I = 1 0 0 1 , then 10 A - 1 , is equal to.08 Jan, 2020 (E)Inverse of a Matrix
  5. 5The mean and variance of 20 observations are found to be 10 and 4 , respectively. On rechecking, it was found that an observation 9 was inco08 Jan, 2020 (E)Measures of Dispersion
  6. 6The differential equation of the family of curves, x 2 = 4 b y + b , b R , is.08 Jan, 2020 (E)Formation of Differential Equation
  7. 7If a hyperbola passes through the point P 10 , 16 , and it has vertices at 6 , 0 , then the equation of the normal to it at P , is.08 Jan, 2020 (E)Normal to hyperbola
  8. 8Which of the following statement is a tautology?08 Jan, 2020 (E)Mathematical Reasoning
  9. 9If the 10 t h , term of an A.P. is 1 20 , and its 20 t h , term is 1 10 , then the sum of its first 200 , terms is.08 Jan, 2020 (E)Arithmetic Progression
  10. 10Let = - 1 + i 3 2 . If a = 1 + k = 0 100 2 k and b = k = 0 100 3 k , then a and b , are the roots of the quadratic equation.08 Jan, 2020 (E)Cube Root of Unity
  11. 11Let S , be the set of all functions f : 0 , 1 R , which are continuous on 0 , 1 , and differentiable on 0 , 1 . Then for every f in S , ther08 Jan, 2020 (E)Differentiability
  12. 12Let A and B , be two events such that the probability that exactly one of them occurs is 2 5 , and the probability that A or B , occurs is 108 Jan, 2020 (E)Addition and Subtraction Theorems
  13. 13Let f : 1 , 3 R , be a function defined by f x = x x 1 + x 2 , where x , denotes the greatest integer x . Then the range of f , is08 Jan, 2020 (E)Range
  14. 14The mirror image of the point 1 , 2 , 3 , in a plane is - 7 3 , - 4 3 , - 1 3 . Which of the following points lies on this plane?08 Jan, 2020 (E)Plane in Space
  15. 15The system of linear equations x + 2 y + 2 z = 5 2 x + 3 y + 5 z = 8 4 x + y + 6 z = 10 has08 Jan, 2020 (E)System of Linear Equations
  16. 16If and , be the coefficients of x 4 and x 2 , respectively in the expansion of x + x 2 - 1 6 + x - x 2 - 1 6 , then08 Jan, 2020 (E)Terms of Binomial Expansion
  17. 17If a line y = m x + c , is a tangent to the circle x - 3 2 + y 2 = 1 , and it is perpendicular to a line L 1 , where L 1 is the tangent to t08 Jan, 2020 (E)Tangent to circle
  18. 18Let a line y = m x m 0 , intersect the parabola, y 2 = x , at a point P , other than the origin. Let the tangent to it a P , meet the x -axi08 Jan, 2020 (E)Tangent to Parabola
  19. 19The number of 4 letter words (with or without meaning) that can be formed from the eleven letters of the word EXAMINATION is08 Jan, 2020 (E)Selection of one or more item
  20. 20The sum, n = 1 7 n n + 1 2 n + 1 4 , is equal to08 Jan, 2020 (E)Summation of Series
  21. 21If 2 s i n 1 + c o s 2 = 1 7 and 1 - c o s 2 2 = 1 10 , , 0 , 2 , then t a n + 2 , is equal to08 Jan, 2020 (E)Sum and Difference & Multiple angle Formula
  22. 22Let f x , be a polynomial of degree 3 , such that f - 1 = 10 , f 1 = - 6 , f x , has a critical point at x = - 1 and f ' x , has a critical 08 Jan, 2020 (E)Maxima Minima
  23. 23l i m x 0 0 x t s i n 10 t d t x , is equal to08 Jan, 2020 (E)Leibnitz Rule of Differentiation
  24. 24If I = 1 2 d x 2 x 3 - 9 x 2 + 12 x + 4 , then08 Jan, 2020 (E)Properties Involving Inequalities
  25. 25Let S , be the set of all real roots of the equation, 3 x 3 x - 1 + 2 = 3 x - 1 + 3 x - 2 , then08 Jan, 2020 (E)Relation between Roots and Coefficients

Physics

  1. 1A uniform sphere of mass 500 g rolls without slipping on a plane horizontal surface with its centre moving at a speed of 5.00 cm s - 1 . Its08 Jan, 2020 (E)Rotational kinematics
  2. 2An object is gradually moving away from the focal point of a concave mirror along the axis of the mirror. The graphical representation of th08 Jan, 2020 (E)Mirror Formula, Reflection in Spherical Mirror
  3. 3A transverse wave travels on a taut steel wire with a velocity of v when tension in it is 2.06 10 4 N . When the tension is changed to T , t08 Jan, 2020 (E)Basics of Mechanical Waves
  4. 4Consider a mixture of n moles of helium gas and 2 n moles of oxygen gas (molecules taken to be rigid) as an ideal gas. Its C P C V value wil08 Jan, 2020 (E)Degree of Freedom and Specific Heat
  5. 5As shown in figure. When a spherical cavity (centred at O ) of radius 1 is cut out of a uniform sphere of radius R (centred at C ), the cent08 Jan, 2020 (E)Centre of mass of continuous mass distribution
  6. 6In the given circuit, value of Y is:08 Jan, 2020 (E)Logic gates
  7. 7A Carnot engine having an efficiency of 1 10 is being used as a refrigerator. If the work done on the refrigerator is 10 J , the amount of h08 Jan, 2020 (E)Heat Engine, Refrigerator and Second Law of Thermodynamics
  8. 8In a double slit experiment, at a certain point on the screen the path difference between the two interfering waves is 1 8 t h of a waveleng08 Jan, 2020 (E)Youngs Double Slit Experiment
  9. 9A very long wire ABDMNDC is shown in figure carrying current I. AB and BC parts are straight, long and at right angle. At D wire forms a cir08 Jan, 2020 (E)Magnetic Field
  10. 10A particle of mass m is dropped from a height h above the ground. At the same time another particle of the same mass is thrown vertically up08 Jan, 2020 (E)Collisions
  11. 11A plane electromagnetic wave of frequency 25 G H z is propagating in vacuum along the z-direction. At a particular point in space and time, 08 Jan, 2020 (E)Electromagnetic Waves and Maxwell's equations
  12. 12An electron (mass m ) with initial velocity v = v 0 i ^ + v 0 j ^ is in an electric filed E = - E 0 k ^ . If 0 is initial de-Broglie wavelen08 Jan, 2020 (E)Matter Waves
  13. 13A simple pendulum is being used to determine the value of gravitational acceleration g at a certain place. The length of the pendulum is 25.08 Jan, 2020 (E)Errors of Measurement
  14. 14As shown in the figure, a battery of emf is connected to an inductor L and resistance R in series. The switch is closed at t = 0 . The total08 Jan, 2020 (E)AC Circuits
  15. 15Consider two charged metallic spheres S 1 and S 2 of radii R 1 and R 2 , respectively. The electric fields E 1 (on S 1 ) and E 2 (on S 2 ) o08 Jan, 2020 (E)Electric Potential and Potential Energy
  16. 16A particle moves such that its position vector r t = cos t i ^ + sin t j ^ where is a constant and t is time. Then which of the following st08 Jan, 2020 (E)Uniform Circular Motion
  17. 17A capacitor is made of two square plates each of side a making a very small angle between them, as shown in figure. The capacitance will be 08 Jan, 2020 (E)Capacitors with Dielectric
  18. 18A particle of mass m and charge q is released from rest in a uniform electric field. If there is no other force on the particle, the depende08 Jan, 2020 (E)Uniform Motion
  19. 19A galvanometer having a coil resistance 100 gives a full scale deflection when a current of 1 m A is passed through it. What is the value of08 Jan, 2020 (E)Electric Instruments
  20. 20Two liquids of densities 1 and 2 2 = 2 1 are filled up behind a square wall of side 10 m as shown in figure. Each liquid has a height of 5 m08 Jan, 2020 (E)Surface tension
  21. 21A ball is dropped from the top of a 100 m high tower on a planet. In the last 1 2 s before hitting the ground, it covers a distance of 19 m 08 Jan, 2020 (E)Uniform Motion
  22. 22The first member of the Balmer series of hydrogen atom has a wavelength of 6561 A . The wavelength of the second member of the Balmer series08 Jan, 2020 (E)Atomic Spectrum
  23. 23The series combination of two batteries, both of the same emf 10 V , but different internal resistance of 20 and 5 , is connected to the par08 Jan, 2020 (E)Combination of Resistances
  24. 24Three containers C 1 , C 2 and C 3 have water at different temperatures. The table below shows the final temperature T when different amount08 Jan, 2020 (E)Calorimetry
  25. 25An asteroid is moving directly towards the centre of the earth. When at a distance of 10 R ( R is the radius of the earth) from the centre o08 Jan, 2020 (E)Gravitational potential and Potential Energy

Frequently Asked Questions

1.How many questions are in the JEE Main 2020 8th January Evening Shift paper?

This paper has 75 questions in total - 25 each from Chemistry, Mathematics, and Physics.

2.Can I practise questions from just one subject?

Yes. Use the Chemistry, Mathematics, and Physics tabs at the top of the page to jump directly to that subject's question set within this shift.

3.Is this the same paper for all students who appeared in the evening shift?

JEE Main uses different question sets across shifts and sessions to maintain exam integrity, so this page reflects the specific paper administered in the 8th January 2020 evening shift.

4.Where can I find the morning shift paper for the same date?

The JEE Main 2020 8th January Morning Shift paper is listed separately - you can switch to it from the "JEE Main Paper Wise PYQs" panel, under JEE Main 8th January 2020.

5.How is the JEE Main 2020 8th January Evening Shift paper structured?

The JEE Main 2020 8th January Evening Shift paper on MARKS has 75 questions, organised by subject:

  • Chemistry: 25 questions - 20 single-correct and 5 numerical-value.
  • Mathematics: 25 questions - 20 single-correct and 5 numerical-value.
  • Physics: 25 questions - 20 single-correct and 5 numerical-value.
6.How difficult is the JEE Main 2020 8th January Evening Shift paper?

Each question on MARKS carries a difficulty rating. Of the 75 rated questions in this paper, 24 (32%) are easy, 34 (45%) are medium and 17 (23%) are hard. Subject wise:

  • Chemistry: 10 easy, 12 medium, 3 hard
  • Mathematics: 5 easy, 15 medium, 5 hard
  • Physics: 9 easy, 7 medium, 9 hard
7.Which chapters were asked the most in the JEE Main 2020 8th January Evening Shift paper?

The chapters with the most questions in each subject were:

  • Chemistry: Coordination Compounds (3), Hydrocarbons (3), and Chemical Bonding and Molecular Structure (2).
  • Mathematics: Application of Derivatives (2), Definite Integration (2), and Sequences and Series (2).
  • Physics: Center of Mass Momentum and Collision (2), Current Electricity (2), and Motion In One Dimension (2).
8.Are there any out-of-syllabus questions in the JEE Main 2020 8th January Evening Shift paper?

Yes. 18 of the 75 questions in this paper are marked on MARKS as outside the current syllabus. You can still practise them for the concept, but they are a lower priority if you are short on time.

9.Where can I find the solutions for the JEE Main 2020 8th January Evening Shift paper?

Open any question on this page. Its page shows the correct answer and, where one is available, the worked solution. A downloadable PDF of the whole shift is coming soon.

10.How should I use the JEE Main 2020 8th January Evening Shift paper to check my preparation?

Set a timer, attempt the 75 questions as you would in the exam, and only then open the answers. Note which subjects and chapters cost you the most marks, and revise those first using the chapter-wise practice for JEE Main. Repeating this with other papers shows whether the same weak spots keep coming back.

11.Will the JEE Main 2020 8th January Evening Shift paper help me prepare for JEE Main 2027?

Yes. Every past paper shows the question styles and topics JEE Main has asked before, and a solved paper gives you a realistic benchmark for speed and accuracy. Use it along with the other papers to spot the chapters that keep returning.