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JEE Main 2020 9th January Evening Shift

Browse the complete Chemistry, Mathematics, and Physics question set from the JEE Main 2020 9th 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 - 27 easy (36%), 39 moderate (52%) and 9 tough (12%). That's a fairly typical mix for this exam. By subject: Physics 40% easy, 52% moderate, 8% tough; Chemistry 44% easy, 44% moderate, 12% tough; Mathematics 24% easy, 60% moderate, 16% tough.

Chemistry questions were spread across 20 chapters, with Aldehydes and Ketones (2), Amines (2), and Coordination Compounds (2) carrying the most weight. Mathematics questions were spread across 18 chapters, with Sequences and Series (3), Application of Derivatives (2), and Binomial Theorem (2) carrying the most weight. Physics questions were spread across 20 chapters, with Alternating Current (2), Center of Mass Momentum and Collision (2), and Magnetic Effects of Current (2) carrying the most weight.

Chemistry

  1. 1Consider the following reactions, The compound P is:09 Jan, 2020 (E)Preparation and Properties of Amines
  2. 2Among the statements a - d , the correct ones are: ( a ) Lithium has the highest hydration enthalpy among the alkali metals. ( b ) Lithium c09 Jan, 2020 (E)General Characteristics of Alkali Metals
  3. 3The solubility product of C r ( O H ) 3 at 298 K is 6.0 10 - 31 . The concentration of hydroxide ions in a saturated solution of C r O H 3 w09 Jan, 2020 (E)Solubility
  4. 4Which of the following has the shortest C - C l bond?09 Jan, 2020 (E)Conjugation and Aromaticity
  5. 5The reaction of H 3 N 3 B 3 C l 3 A with L i B H 4 in tetrahydrofuran gives inorganic benzene B . Further, the reaction of A with C leads to09 Jan, 2020 (E)Boron and Its Compounds
  6. 6The first and second ionisation enthalpies of a metal are 496 and 4560 k J m o l - 1 , respectively. How many moles of H C l and H 2 S O 4 ,09 Jan, 2020 (E)Periodic properties
  7. 7The decreasing order of basicity of the following amines is:09 Jan, 2020 (E)Preparation and Properties of Amines
  8. 8In the following reaction A is09 Jan, 2020 (E)Method of preparation for both aldehydes and ketones
  9. 9The correct order of the spin-only magnetic moments of the following complexes is: ( I ) C r H 2 O 6 B r 2 ( I I ) N a 4 F e ( C N ) 6 ( I I09 Jan, 2020 (E)Werner's theory and Valence Bond Theory
  10. 105 g of zinc is treated separately with an excess of ( a ) dilute hydrochloric acid and ( b ) aqueous sodium hydroxide. The ratio of the volu09 Jan, 2020 (E)Preparation and Properties of Hydrogen
  11. 11In the figure shown below reactant A (represented by square) is in equilibrium with product B (represented by circle). The equilibrium const09 Jan, 2020 (E)Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application
  12. 12A mixture of gases O 2 , H 2 and C O are taken in a closed vessel containing charcoal The graph that represents the correct behaviour of pre09 Jan, 2020 (E)Mixture of gases
  13. 13Which of the following reactions will not produce a racemic product ?09 Jan, 2020 (E)Reactions of alkenes
  14. 14Which polymer has 'chiral' monomer(s)?09 Jan, 2020 (E)Preparation and Properties of Polymers
  15. 15The number of s p 2 hybrid orbitals in a molecule of benzene is:09 Jan, 2020 (E)Preparation and Properties of Benzene
  16. 16Amongst the following, the form of water with the lowest ionic conductance at 298 K is:09 Jan, 2020 (E)Conductance and Conductivity
  17. 17A , B and C are three biomolecules. The results of the tests performed on them are given below: Molisch s test Barfoed Test Biuret Test A Po09 Jan, 2020 (E)Carbohydrates
  18. 18The true statement amongst the following is:09 Jan, 2020 (E)Entropy and Second law of thermodynamics
  19. 19Biochemical Oxygen Demand B O D is the amount of oxygen required (in p p m ):09 Jan, 2020 (E)Water Pollution
  20. 20The isomer(s) of C o N H 3 4 C l 2 ] that has/ have a C l - C o - C l angle of 90 o , is/are:09 Jan, 2020 (E)Isomerism of coordination compounds
  21. 2110.30 m g of O 2 is dissolved into a liter of sea water of density 1.03 g / m L . The concentration of O 2 in ppm is _____________.09 Jan, 2020 (E)Water Pollution
  22. 22Consider the following reactions A i C H 3 M B r ( i i ) H 3 O + B C u 573 K 2 - m e t h y l - 2 - b u t e n e . The mass percentage of carb09 Jan, 2020 (E)Chemical reactions for aldehydes and ketones
  23. 23A sample of milk splits after 60 m i n . at 300 K and after 40 m i n . at 400 K when the population of Iactobacillus acidophilus in it doubl09 Jan, 2020 (E)Arrhenius theory
  24. 24A cylinder containing an ideal gas ( 0.1 m o l of 1.0 d m 3 ) is in thermal equilibrium with a large volume of 0.5 molal aqueous solution of09 Jan, 2020 (E)Colligative Properties and Abnormal Molecular Masses
  25. 25The sum of the total number of bonds between chromium and oxygen atoms in chromate and dichromate ions is ______________.09 Jan, 2020 (E)Compounds of Transition Metals

Mathematics

  1. 1The following system of linear equations 7 x + 6 y - 2 z = 0 3 x + 4 y + 2 z = 0 x - 2 y - 6 z = 0 , has09 Jan, 2020 (E)System of Linear Equations
  2. 2If 10 different balls are to be placed in 4 distinct boxes at random, then the probability that two of these boxes contain exactly 2 and 3 b09 Jan, 2020 (E)Classical Definition of Probability
  3. 3Let a n be the n t h term of a G.P. of positive terms. If n = 1 100 a 2 n + 1 = 200 and n = 1 100 a 2 n = 100 , then n = 1 200 a n is equal 09 Jan, 2020 (E)Geometric Progression
  4. 4If z is a complex number satisfying R e z + I m z = 4 , then z cannot be09 Jan, 2020 (E)Geometry of Complex Number
  5. 5If x = n = 0 - 1 n tan 2 and y = n = 0 cos 2 n , for 0 4 , then:09 Jan, 2020 (E)Geometric Progression
  6. 6If x = 2 sin - sin 2 and y = 2 cos - cos 2 , 0 , 2 , then d 2 y d x 2 at = is:09 Jan, 2020 (E)Parametric differentiation
  7. 7Given: f x = x , 0 x 1 2 1 2 , x = 1 2 1 - x , 1 2 x 1 and g x = x - 1 2 2 , x R . Then, the area (in sq. units) of the region bounded by th09 Jan, 2020 (E)Area bounded by two curves
  8. 8The length of the minor axis (along y -axis) of an ellipse in the standard form is 4 3 . If this ellipse touches the line x + 6 y = 8 then i09 Jan, 2020 (E)Tangent to ellipse
  9. 9Let a , b R , a 0 be such that the equation, a x 2 - 2 b x + 5 = 0 has a repeated root , which is also a root of the equation, x 2 - 2 b x -09 Jan, 2020 (E)Common Roots
  10. 10If one end of a focal chord A B of the parabola y 2 = 8 x is at A 1 2 , - 2 , then the equation of the tangent to it at B is:09 Jan, 2020 (E)Chord of parabola
  11. 11If d y d x = x y x 2 + y 2 ; y 1 = 1 ; then a value of x satisfying y x = e is:09 Jan, 2020 (E)Homogeneous DE
  12. 12Let a - 2 b + c = 1 . If f x = x + a x + 2 x + 1 x + b x + 3 x + 2 x + c x + 4 x + 3 , then:09 Jan, 2020 (E)Expansion of Determinants
  13. 13In the expansion of x cos + 1 x sin 16 , if l 1 is the least value of the term independent of x when 8 4 and l 2 is the least value of the t09 Jan, 2020 (E)Terms of Binomial Expansion
  14. 14A random variable X has the following probability distribution: X : 1 2 3 4 5 P X : k 2 2 k k 2 k 5 k 2 Then, P X 2 is equal to:09 Jan, 2020 (E)Random Variable and its Probability Distribution
  15. 15If p p ~ q is false, then the truth values of p and q are respectively09 Jan, 2020 (E)Mathematical Reasoning
  16. 16If d cos 2 tan 2 + sec 2 = tan + 2 log e f + C where C is a constant of integration, then the ordered pair , f is equal to:09 Jan, 2020 (E)Integration by Substitution
  17. 17If C r C r 25 and C 0 + 5 C 1 + 9 C 2 + + 101 C 25 = 2 25 k , then k is equal to ____________.09 Jan, 2020 (E)Sum of Series
  18. 18The number of terms common to the two A.P. s 3 , 7 , 11 , , 407 and 2 , 9 , 16 , , 709 is ____________.09 Jan, 2020 (E)Arithmetic Progression
  19. 19Let a , b and c be three vectors such that a = 3 , b = 5 , b c = 10 and the angle between b and c is 3 . If a is perpendicular to the vector09 Jan, 2020 (E)Product of 2 vectors
  20. 20If the distance between the plane, 23 x - 10 y - 2 z + 48 = 0 and the plane containing the lines x + 1 2 = y - 3 4 = z + 1 3 and x + 3 2 = y09 Jan, 2020 (E)Line and Plane
  21. 21If the curves, x 2 - 6 x + y 2 + 8 = 0 and x 2 - 8 y + y 2 + 16 - k = 0 , k 0 touch each other at a point, then the largest value of k is __09 Jan, 2020 (E)Tangent Normal
  22. 22Let a function f : 0 , 5 R be continuous, f 1 = 3 and F be defined as: F x = 1 x t 2 g t d t , where g t = 1 t f u d u . Then for the functi09 Jan, 2020 (E)Maxima Minima
  23. 23If A = x R : x 2 and B = x R : x - 2 3 ; then09 Jan, 2020 (E)Inequalities
  24. 24Let t denote the greatest integer t and lim x 0 x 4 x = A . Then the function, f x = x 2 sin x is discontinuous, when x is equal to:09 Jan, 2020 (E)Continuity
  25. 25Let f and g be differentiable functions on R such that f o g is the identity function. If for some a , b R , g a = 5 and g a = b , then f b 09 Jan, 2020 (E)Derivative of function and its inverse

Physics

  1. 1The current i in the network is09 Jan, 2020 (E)Diodes
  2. 2A wire of length L and mass per unit length 6.0 10 - 3 k g m - 1 is put under tension of 540 N . Two consecutive frequencies that it resonat09 Jan, 2020 (E)Vibration of String
  3. 3An electron of mass m and magnitude of charge e at rest, gets accelerated by a constant electric field E . The rate of change of de-Broglie 09 Jan, 2020 (E)Matter Waves
  4. 4In L C circuit the inductance L = 40 mH and capacitance C = 100 F . If a voltage V t = 10 s i n 314 t is applied to the circuit, the current09 Jan, 2020 (E)AC Circuits
  5. 5A small circular loop of conducting wire has radius a and carries current I . It is placed in a uniform magnetic field B perpendicular to it09 Jan, 2020 (E)Magnetic Moment
  6. 6Two identical capacitors A and B , charged to the same potential 5 V are connected in two different circuits as shown below at time t = 0 . 09 Jan, 2020 (E)AC Circuits
  7. 7A uniformly thick wheel with moment of inertia I and radius R is free to rotate about its centre of mass (see fig). A massless string is wra09 Jan, 2020 (E)Rotational kinematics
  8. 8There is a small source of light at some depth below the surface of water (refractive index = 4 3 ) in a tank of large cross sectional surfa09 Jan, 2020 (E)Critical angle and total internal reflection
  9. 9A spring mass system (mass m , spring constant k and natural length l ) rests in equilibrium on a horizontal disc. The free end of the sprin09 Jan, 2020 (E)Uniform Circular Motion
  10. 10A small spherical droplet of density d is floating exactly half immersed in a liquid of density and surface tension T . The radius of the dr09 Jan, 2020 (E)Surface tension
  11. 11Planet A has mass M and radius R . Planet B has half the mass and half the radius of Planet A . If the escape velocities from the Planets A 09 Jan, 2020 (E)Gravitational potential and Potential Energy
  12. 12A rod of length l has non-uniform linear mass density given by x = a + b x l 2 , where a and b are constants and 0 x l The value of x for th09 Jan, 2020 (E)Centre of mass of continuous mass distribution
  13. 13For the four sets of three measured physical quantities as given below. Which of the following options is correct? i A 1 = 24.36 , B 1 = 0.009 Jan, 2020 (E)Errors of Measurement
  14. 14Two gases - argon (atomic radius 0.07 n m , atomic weight 40 ) and xenon (atomic radius 0.1 n m , atomic weight 140 ) have the same number d09 Jan, 2020 (E)Speed of Gas
  15. 15Two steel wires having same length are suspended from a ceiling under the same load. If the ratio of their energy stored per unit volume is 09 Jan, 2020 (E)Work Done in Stretching a Wire
  16. 16The energy required to ionise a hydrogen like ion in its ground state is 9 Rydbergs. What is the wavelength of the radiation emitted when th09 Jan, 2020 (E)Bohr's Atomic Model
  17. 17A particle of mass m is projected with a speed u from the ground at an angle = 3 w.r.t. horizontal (x-axis). When it has reached its maximum09 Jan, 2020 (E)Collisions
  18. 18An electron gun is placed inside a long solenoid of radius R on its axis. The solenoid has n turns/length and carries a current I . The elec09 Jan, 2020 (E)Motion of Charged Particle in Magnetic Field
  19. 19A particle starts from the origin at t = 0 with an initial velocity of 3.0 i ^ m / s and moves in the x - y plane with a constant accelerati09 Jan, 2020 (E)Projectile motion
  20. 20A plane electromagnetic wave is propagating along the direction i ^ + j ^ 2 , with its polarization along the direction k . ^ The correct fo09 Jan, 2020 (E)Electromagnetic Waves and Maxwell's equations
  21. 21Starting at temperature 300 K , one mole of an ideal diatomic gas = 1.4 is first compressed adiabatically from volume V 1 to V 2 = V 1 16 . 09 Jan, 2020 (E)Thermodynamic Processes
  22. 22An electric field E = 4 x i ^ - y 2 + 1 j ^ N / C passes through the box shown in figure. The flux of the electric field through surfaces A 09 Jan, 2020 (E)Electric Flux and Gauss Law
  23. 23In a meter bridge experiment S is a standard resistance. R is a resistance wire. It is found that balancing length is l = 25 c m . If R is r09 Jan, 2020 (E)Wheatstone Bridge
  24. 24In the circuit shown below, is working as a 8 V d c regulated voltage source. When 12 V is used as an input, the power dissipated (in m W ) 09 Jan, 2020 (E)Diodes
  25. 25In a Young s double slit experiment 15 fringes are observed on a small portion of the screen when light of wavelength 500 n m is used. Ten f09 Jan, 2020 (E)Youngs Double Slit Experiment

Frequently Asked Questions

1.How many questions are in the JEE Main 2020 9th 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 9th January 2020 evening shift.

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

The JEE Main 2020 9th January Morning Shift paper is listed separately - you can switch to it from the "JEE Main Paper Wise PYQs" panel, under JEE Main 9th January 2020.

5.What is the structure of the JEE Main 2020 9th January Evening Shift paper?

The JEE Main 2020 9th 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.What is the difficulty level of the JEE Main 2020 9th January Evening Shift paper?

Each question on MARKS carries a difficulty rating. Of the 75 rated questions in this paper, 27 (36%) are easy, 39 (52%) are medium and 9 (12%) are hard. Subject wise:

  • Chemistry: 11 easy, 11 medium, 3 hard
  • Mathematics: 6 easy, 15 medium, 4 hard
  • Physics: 10 easy, 13 medium, 2 hard
7.Which chapters had the most questions in the JEE Main 2020 9th January Evening Shift paper?

The chapters with the most questions in each subject were:

  • Chemistry: Aldehydes and Ketones (2), Amines (2), and Coordination Compounds (2).
  • Mathematics: Sequences and Series (3), Application of Derivatives (2), and Binomial Theorem (2).
  • Physics: Alternating Current (2), Center of Mass Momentum and Collision (2), and Magnetic Effects of Current (2).
8.Are there any out-of-syllabus questions in the JEE Main 2020 9th January Evening Shift paper?

Yes. 14 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 9th 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 9th 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 9th 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.