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JEE Main 2020 7th January Evening Shift

Browse the complete Chemistry, Mathematics, and Physics question set from the JEE Main 2020 7th 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 - 25 easy (33%), 38 moderate (51%) and 12 tough (16%). That's a fairly typical mix for this exam. By subject: Physics 40% easy, 44% moderate, 16% tough; Chemistry 40% easy, 48% moderate, 12% tough; Mathematics 20% easy, 60% moderate, 20% tough.

Chemistry questions were spread across 20 chapters, with Haloalkanes and Haloarenes (3), Coordination Compounds (2), and General Organic Chemistry (2) carrying the most weight. Mathematics questions were spread across 20 chapters, with Application of Derivatives (2), Binomial Theorem (2), and Definite Integration (2) carrying the most weight. Physics questions were spread across 21 chapters, with Current Electricity (3), Laws of Motion (2), and Thermodynamics (2) carrying the most weight.

Chemistry

  1. 1The redox reaction among the following is07 Jan, 2020 (E)Types of redox reactions
  2. 2Among statements a - d , the correct ones are: a Decomposition of hydrogen peroxide gives di-oxygen. b Like hydrogen peroxide, compounds, su07 Jan, 2020 (E)Chemical properties of hydrogen peroxide
  3. 3In the following reactions, products A and B , respectively, are: N a O H + C l 2 A + s i d e p r o d u c t s h o t a n d c o n c . C a O H 07 Jan, 2020 (E)Halogens and Its Compounds
  4. 4For the following reactions where, k s and k e , are respectively, the rate constants for substitution and elimination, and = k s k e , the 07 Jan, 2020 (E)Preparation and Properties of Monohalides
  5. 5The correct order of stability for the following alkoxides is:07 Jan, 2020 (E)Electron displacement effects
  6. 6The number of possible optical isomers for the complexes M A 2 B 2 with s p 3 and d s p 2 hybridized metal atom, respectively, is: Note: A a07 Jan, 2020 (E)Isomerism of coordination compounds
  7. 7A chromatography column, packed with silica gel as stationary phase, was used to separate a mixture of compounds consisting of A benzanilide07 Jan, 2020 (E)Purification of Organic Compounds
  8. 8Among the statements a - d , the incorrect ones are: a Octahedral C o I I I complexes with strong field ligands have very high magnetic mome07 Jan, 2020 (E)Werner's theory and Valence Bond Theory
  9. 9Consider the following reactions: Which of these reactions are possible?07 Jan, 2020 (E)Preparation and Properties of Monohalides
  10. 10The equation that is incorrect is:07 Jan, 2020 (E)Conductance and Conductivity
  11. 11In the following reaction sequence, structures of A and B are, respectively07 Jan, 2020 (E)Preparation and Properties of Monohalides
  12. 12In the following reaction sequence, the major product B is07 Jan, 2020 (E)Preparation and Properties of Amines
  13. 13Identify the correct labels of A , B and C in the following graph from the options given below: Root mean square speed V r m s ; most proabl07 Jan, 2020 (E)Kinetic theory of gases
  14. 14The refining method used when the metal and the impurities have low and high melting temperatures, respectively, is07 Jan, 2020 (E)Refining of Crude Metal
  15. 15The ammonia N H 3 released on quantitative reaction of 0.6 g urea N H 2 C O N H 2 with sodium hydroxide N a O H can be neutralized by07 Jan, 2020 (E)Quantitative measures in chemical equations
  16. 16Within each pair of elements F and C l , S and S e , and Li and Na , respectively, the elements that release more energy upon an electron ga07 Jan, 2020 (E)Periodic properties
  17. 17The bond order and the magnetic characteristic of C N - are07 Jan, 2020 (E)Molecular Orbital Theory
  18. 18For the reaction 2 H 2 g + 2 N O g N 2 g + 2 H 2 O g the observed rate expression is, rate = k f NO 2 H 2 . The rate expression for the reve07 Jan, 2020 (E)Rate law and rate constant
  19. 19Which of the following statements is correct?07 Jan, 2020 (E)Preparation and Reactions of Glucose
  20. 20Two open beakers one containing a solvent and the other containing a mixture of that solvent with a non volatile solute are together sealed 07 Jan, 2020 (E)Vapour pressure and raoult's law
  21. 21Consider the following reactions: NaCl + K 2 Cr 2 O 7 + H 2 SO 4 Conc. A + side products A + N a O H B + side products B + H 2 S O 4 dilute 07 Jan, 2020 (E)Balancing of redox reactions
  22. 22The number of s p 2 hybridised carbons present in Aspartame is07 Jan, 2020 (E)Artificial Sweetning Agents and Food Preservatives
  23. 23The standard heat of formation f H 298 0 of ethane (in k J / m o l ), if the heat of combustion of ethane, hydrogen and graphite are - 1560 07 Jan, 2020 (E)Laws of Thermochemistry and Enthalpy Change
  24. 24The flocculation value of H C l for arsenic sulphide s o l is 30 m m o l L - 1 . If H 2 S O 4 is used for the flocculation of arsenic sulphi07 Jan, 2020 (E)Properties of colloidal solution
  25. 253 g of acetic acid is added to 250 m L of 0.1 M H C l and the solution made up to 500 m L . To 20 m L of this solution 1 2 m L of 5 M N a O 07 Jan, 2020 (E)PH of solutions

Mathematics

  1. 1Let a , b and c , be three unit vectors such that a + b + c = 0 . If = a b + b c + c a and d = a b + b c + c a , then the order pair, , d , 07 Jan, 2020 (E)Product of 2 vectors
  2. 2The locus of the mid-points of the perpendiculars drawn from points on the line x = 2 y , to the line x = y , is.07 Jan, 2020 (E)Locus
  3. 3Let a 1 , a 2 , a 3 , , be a G . P . such that a 1 0 , a 1 + a 2 = 4 and a 3 + a 4 = 16 . If i = 1 9 a i = 4 , then , is equal to.07 Jan, 2020 (E)Geometric Progression
  4. 4The value of c , in the Lagrange s mean value theorem for the function f x = x 3 - 4 x 2 + 8 x + 11 , when x 0,1 , is07 Jan, 2020 (E)Mean Value Theorem
  5. 5The coefficient of x 7 in the expression 1 + x 10 + x 1 + x 9 + x 2 1 + x 8 + . . . . + x 10 , is07 Jan, 2020 (E)Terms of Binomial Expansion
  6. 6The area (in sq. units) of the region x , y R 2 4 x 2 y 8 x + 12 is07 Jan, 2020 (E)Area bounded by two curves
  7. 7In a workshop, there are five machines and the probability of any one of them to be out of service on a day is 1 4 . If the probability that07 Jan, 2020 (E)Independent Events
  8. 8Let f x be a polynomial of degree 5 such that x = 1 are its critical points. If l i m x 0 2 + f x x 3 = 4 , then which one of the following 07 Jan, 2020 (E)Maxima Minima
  9. 9If 3 x + 4 y = 12 2 is a tangent o the ellipse x 2 a 2 + y 2 9 = 1 for some a R , then the distance between the foci of the ellipse is07 Jan, 2020 (E)Tangent to ellipse
  10. 10If 3 + i s i n 4 - i c o s , 0 ,2 , is a real number, then an argument of s i n + i c o s is07 Jan, 2020 (E)Conjugate, modulus and argument
  11. 11Let y = y x be the solution curve of the differential equation, y 2 - x d y d x = 1 , satisfying y 0 = 1 . This curve intersects the X - axi07 Jan, 2020 (E)Applications of DE
  12. 12Let A , B , C and D be four non-empty sets. The contrapositive statement of If A B and B D , then A C is07 Jan, 2020 (E)Mathematical Reasoning
  13. 13Let the tangents drawn from the origin to the circle, x 2 + y 2 - 8 x - 4 y + 16 = 0 touch it at the points A and B . Then A B 2 is equal to07 Jan, 2020 (E)Pair of Tangents
  14. 14Let and be the roots of the equation x 2 - x - 1 = 0 . If p k = k + k , k 1 , then which one of the following statements is not true?07 Jan, 2020 (E)Relation between Roots and Coefficients
  15. 15The value of for which 4 - 1 2 e - x d x = 5 , is07 Jan, 2020 (E)Properties of Definite Integration
  16. 16If the sum of the first 40 terms of the series, 3 + 4 + 8 + 9 + 13 + 14 + 18 + 19 + . . . . is 102 m , then m is equal to07 Jan, 2020 (E)Summation of Series
  17. 17Let y = y x be a function of x satisfying y 1 - x 2 = k - x 1 - y 2 where k is a constant and y 1 2 = - 1 4 .Then d y d x at x = 1 2 , is eq07 Jan, 2020 (E)Differentiation of implicit functions
  18. 18If 1 and 2 be respectively the smallest and the largest values of in 0 , 2 - which satisfy the equation, 2 cot 2 - 5 sin + 4 = 0 , then 1 2 07 Jan, 2020 (E)Definite Integration by Substitution
  19. 19If the mean and variance of eight numbers 3 , 7 , 9 , 12 , 13 , 20 , x and y be 10 and 25 respectively, then x y is equal to07 Jan, 2020 (E)Measures of Dispersion
  20. 20If the foot of the perpendicular drawn from the point 1 , 0 , 3 on a line passing through , 7,1 is 5 3 , 7 3 , 17 3 , then is equal to07 Jan, 2020 (E)Plane in Space
  21. 21If the system of linear equations, x + y + z = 6 x + 2 y + 3 z = 10 3 x + 2 y + z = has more than two solutions, then - 2 , is equal to.07 Jan, 2020 (E)System of Linear Equations
  22. 22If the function f defined on - 1 3 , 1 / 3 by f x = 1 x l o g e 1 + 3 x 1 - 2 x , when x 0 k , when x = 0 , is continuous, then k is equal t07 Jan, 2020 (E)Continuity
  23. 23The number of ordered pairs r , k for which 6 . C r 35 = k 2 - 3 . C r + 1 36 , where k is an integer is07 Jan, 2020 (E)Properties of Binomial Coefficients
  24. 24Let A = a i j and B = b i j be two 3 3 real matrices such that b i j = 3 i + j - 2 a i j , where i , j = 1,2 , 3 . If the determinant of B i07 Jan, 2020 (E)Expansion of Determinants
  25. 25Let X = n N : 1 n 50 . If A = n X : n i s a m u l t i p l e o f 2 and B = n X : n i s a m u l t i p l e o f 7 , then the number of elements 07 Jan, 2020 (E)Questions on number of relations and sets

Physics

  1. 1A mass of 10 k g is suspended by a rope of length 4 m , from the ceiling. A force F is applied horizontally at the mid-point of the rope suc07 Jan, 2020 (E)Newton's laws of motion
  2. 2A particle of mass m and charge q has an initial velocity v = v 0 j ^ . If an electric field E = E 0 i ^ and magnetic field B = B 0 i ^ act 07 Jan, 2020 (E)Electric Field and Electric Field Lines
  3. 3In a building there are 15 bulbs of 45 W , 15 bulbs of 100 W , 15 small fans of 10 W and 2 heaters of 1 k W . The voltage of electric main s07 Jan, 2020 (E)Electric Power and Heating Effect of Current
  4. 4An ideal fluid flows (laminar flow) through a pipe of non-uniform diameter. The maximum and minimum diameters of the pipes are 6.4 c m and 407 Jan, 2020 (E)Hydrodynamics
  5. 5Given, B is magnetic field induction, and 0 is the magnetic permeability of vacuum. The dimension of B 2 2 0 is:07 Jan, 2020 (E)Dimensions
  6. 6The electric field of a plane electromagnetic wave is given by E = E 0 i ^ + j ^ 2 cos k z + t . At t = 0 , a positively charged particle is07 Jan, 2020 (E)Force and Torque on Current Carrying Conductor
  7. 7An elevator in a building can carry a maximum of 10 persons, with the average mass of each person being 68 k g . The mass of the elevator it07 Jan, 2020 (E)Motion Under Gravity
  8. 8A stationary observer receives sound from two identical tuning forks, one of which approaches and the other one recedes with the same speed 07 Jan, 2020 (E)Doppler's Effect
  9. 9An emf of 20 V is applied at time t = 0 to a circuit containing in series 10 m H inductor and 5 resistor. The ratio of the currents at time 07 Jan, 2020 (E)AC Circuits
  10. 10A thin lens made of glass (refractive index = 1.5 ) of focal length f = 16 c m is immersed in a liquid of refractive index 1.42 . If its foc07 Jan, 2020 (E)Lens Formula, Refraction of light from curved surface
  11. 11An electron (of mass m ) and a photon have the same energy E in the range of a few e V . The ratio of the de-Broglie wavelength associated w07 Jan, 2020 (E)Matter Waves
  12. 12A planar loop of wire rotates in a uniform magnetic field. Initially, at t = 0 , the plane of the loop is perpendicular to the magnetic fiel07 Jan, 2020 (E)Magnetic Flux, Faraday's and Lenz law
  13. 13In the figure, potential difference between A and B is:07 Jan, 2020 (E)Combination of Resistances
  14. 14In a Young s double slit experiment, the separation between the slits is 0.15 m m . In the experiment, a source of light of wavelength 589 n07 Jan, 2020 (E)Youngs Double Slit Experiment
  15. 15The activity of a radioactive sample falls from 700 s - 1 to 500 s - 1 in 30 minutes. Its half life is close to:07 Jan, 2020 (E)Radioactivity
  16. 16A box weighs 196 N on a spring balance at the north pole. Its weight recorded on the same balance if it is shifted to the equator is close t07 Jan, 2020 (E)Acceleration Due to Gravity
  17. 17Mass per unit area of a circular disc of radius a depends on the distance r from its centre as r = A + B r . The moment of inertia of the di07 Jan, 2020 (E)Moment of inertia of rigid bodies
  18. 18The figure gives experimentally measured B vs. H variation in a ferromagnetic material. The retentivity, coercivity and saturation, respecti07 Jan, 2020 (E)Magnetic Materials and their Properties
  19. 19Under an adiabatic process, the volume of an ideal gas gets doubled. Consequently, the mean collision time between the gas molecule changes 07 Jan, 2020 (E)Thermodynamic Processes
  20. 20Two ideal Carnot engines operate in cascade (all heat given up by one engine is used by the other engine to produce work) between temperatur07 Jan, 2020 (E)Heat Engine, Refrigerator and Second Law of Thermodynamics
  21. 21The sum of two forces P and Q is R such that R = P . Find the angle between resultant of 2 P and Q and Q , ________07 Jan, 2020 (E)Addition and Subtraction of Vectors
  22. 22A 60 p F capacitor is fully charged by a 20 V supply. It is then disconnected from the supply and is connected to another uncharged 60 p F c07 Jan, 2020 (E)Force and Energy stored in capacitor
  23. 23Consider a uniform cubical box of side a on a rough floor that is to be moved by applying minimum possible force F at a point b above its ce07 Jan, 2020 (E)Frictional force
  24. 24The balancing length for a cell is 560 c m in a potentiometer experiment. When an external resistance of 10 is connected in parallel to the 07 Jan, 2020 (E)Electric Instruments
  25. 25M grams of steam at 100 o C is mixed with 200 g of ice at its melting point in a thermally insulated container. If it produces liquid water 07 Jan, 2020 (E)Calorimetry

Frequently Asked Questions

1.How many questions are in the JEE Main 2020 7th 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 7th January 2020 evening shift.

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

The JEE Main 2020 7th January Morning Shift paper is listed separately - you can switch to it from the "JEE Main Paper Wise PYQs" panel, under JEE Main 7th January 2020.

5.What is the structure of the JEE Main 2020 7th January Evening Shift paper?

The JEE Main 2020 7th 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 7th January Evening Shift paper?

Each question on MARKS carries a difficulty rating. Of the 75 rated questions in this paper, 25 (33%) are easy, 38 (51%) are medium and 12 (16%) are hard. Subject wise:

  • Chemistry: 10 easy, 12 medium, 3 hard
  • Mathematics: 5 easy, 15 medium, 5 hard
  • Physics: 10 easy, 11 medium, 4 hard
7.Which chapters had the most questions in the JEE Main 2020 7th January Evening Shift paper?

The chapters with the most questions in each subject were:

  • Chemistry: Haloalkanes and Haloarenes (3), Coordination Compounds (2), and General Organic Chemistry (2).
  • Mathematics: Application of Derivatives (2), Binomial Theorem (2), and Definite Integration (2).
  • Physics: Current Electricity (3), Laws of Motion (2), and Thermodynamics (2).
8.Are there any out-of-syllabus questions in the JEE Main 2020 7th 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 7th 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 7th 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 7th 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.