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JEE Main 2020 7th January Morning Shift

Browse the complete Chemistry, Mathematics, and Physics question set from the JEE Main 2020 7th January Morning 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 - 23 easy (31%), 42 moderate (56%) and 10 tough (13%). That's a fairly typical mix for this exam. By subject: Physics 40% easy, 48% moderate, 12% tough; Chemistry 40% easy, 48% moderate, 12% tough; Mathematics 12% easy, 72% moderate, 16% tough.

Chemistry questions were spread across 22 chapters, with Chemical Bonding and Molecular Structure (2), Coordination Compounds (2), and General Organic Chemistry (2) carrying the most weight. Mathematics questions were spread across 23 chapters, with Differentiation (2), Sequences and Series (2), and Application of Derivatives (1) carrying the most weight. Physics questions were spread across 21 chapters, with Electromagnetic Induction (2), Rotational Motion (2), and Thermodynamics (2) carrying the most weight.

Chemistry

  1. 1The number of orbitals associated with quantum numbers n = 5 , m s = + 1 2 is:07 Jan, 2020 (M)Quantum mechanical model
  2. 2Given that the standard potentials E o of Cu 2 + / Cu and Cu + / Cu are 0.34 V and 0.522 V respectively, the E o of Cu 2 + / Cu + is:07 Jan, 2020 (M)Cells and Electrode Potential, Nernst Equation
  3. 3In comparison to the zeolite process for the removal of permanent hardness, the synthetic resin method is07 Jan, 2020 (M)Preparation and Properties of Water
  4. 4Match the following : i Riboflavin a Beriberi i i Thiamine b Scurvy i i i Pyridoxine c Cheilosis i v Ascorbic acid d Convulsions07 Jan, 2020 (M)Vitamins
  5. 5At 35 o C , the vapour pressure of C S 2 , is 512 m m Hg and that of acetone is 144 m m H g . A solution of C S 2 in acetone has a total vap07 Jan, 2020 (M)Vapour pressure and raoult's law
  6. 6A solution of m - chloroaniline, m - chlorophenol and m - chlorobenzoic acid in ethyl acetate was extracted initially with a saturated solut07 Jan, 2020 (M)Electron displacement effects
  7. 7What is the product of following reaction? ?07 Jan, 2020 (M)Chemical reactions for aldehydes and ketones
  8. 8Amongst the following statements, that which was not proposed by Dalton was :07 Jan, 2020 (M)Laws of chemical combination
  9. 9The dipole moments of C C l 4 , C H C l 3 and C H 4 are in the order07 Jan, 2020 (M)Dipole moment
  10. 10The IUPAC name of the complex P t N H 3 2 C l N H 2 C H 3 C l is07 Jan, 2020 (M)Nomenclature of coordination compounds
  11. 11The purest form of commercial iron is:07 Jan, 2020 (M)Extraction of Metals
  12. 12The electron gain enthalpy (in kJ m o l ) of fluorine, chlorine, bromine and iodine, respectively, are07 Jan, 2020 (M)Periodic properties
  13. 131 -methyl ethylene oxide when treated with an excess of H B r produces07 Jan, 2020 (M)Reactions of Oxiranes
  14. 14The increasing order of p K b for the following compounds will be :07 Jan, 2020 (M)Electron displacement effects
  15. 15Oxidation number of potassium in K 2 O , K 2 O 2 and K O 2 , respectively, is:07 Jan, 2020 (M)Oxidation number
  16. 16Consider the following reaction: The product X is used:07 Jan, 2020 (M)Preparation and Properties of Amines
  17. 17The atomic radius of A g is closest to07 Jan, 2020 (M)F-Block elements
  18. 18The theory that can completely/properly explain the nature of bonding in Ni CO 4 is:07 Jan, 2020 (M)Carbonyl Compounds
  19. 19Consider the following reactions: a C H 3 3 C C H O H C H 3 c o n c . H 2 S O 4 b C H 3 2 C H C H B r C H 3 a l c . K O H c C H 3 2 C H C H 07 Jan, 2020 (M)Properties and Preparation of Alkenes
  20. 20The relative strength of the interionic/ intermolecular forces in a decreasing order is:07 Jan, 2020 (M)Van Der Waals Forces, Hydrogen Bonding and Metallic Bonding
  21. 21Chlorine reacts with hot and concentrated N a O H and produces compounds X and Y . Compound X gives white precipitate with silver nitrate so07 Jan, 2020 (M)Halogens and Its Compounds
  22. 22The number of chiral carbons in chloramphenicol is ____________.07 Jan, 2020 (M)Drugs and It's Classification
  23. 23During the nuclear explosion, one of the products is 90 S r with half life of 6.93 years. If 1 g of 90 S r was absorbed in the bones of a ne07 Jan, 2020 (M)Integrated rate laws
  24. 24For the reaction; A l 2 B g U = 2.1 k c a l , S = 20 c a l K - 1 at 300 K . Hence G in k c a l is _____________.07 Jan, 2020 (M)Third law of thermodynamics
  25. 25Two solutions, A and B , each of 100 L was made by dissolving 4 g of N a O H and 9.8 g of H 2 S O 4 in water, respectively. The p H of the r07 Jan, 2020 (M)PH of solutions

Mathematics

  1. 1If y = 2 t a n + c o t 1 + t a n 2 + 1 s i n 2 , 3 4 , , then d y d at = 5 6 is07 Jan, 2020 (M)Differentiation of composite functions
  2. 2Five numbers are in A . P . , whose sum is 25 and product is 2520 . If one of these five numbers is - 1 2 , then the greatest number amongst07 Jan, 2020 (M)Arithmetic Progression
  3. 3If g x = x 2 + x - 1 and g o f x = 4 x 2 - 10 x + 5 , then f 5 4 is equal to07 Jan, 2020 (M)Composite Function
  4. 4Total number of 6 - digit numbers in which only and all the five digits 1 , 3 , 5 , 7 and 9 appears, is07 Jan, 2020 (M)Arrangement under Constraint
  5. 5A vector a = i ^ + 2 j ^ + k ^ , R lies in the plane of the vectors, b = i ^ + j ^ and c = i ^ - j ^ + 4 k ^ . If a bisects the angle betwee07 Jan, 2020 (M)Algebra of Vectors
  6. 6Let x k + y k = a k , a , k 0 and d y d x + y x 1 3 = 0 , then k is07 Jan, 2020 (M)Differentiation of implicit functions
  7. 7Let and be two real roots of the equation k + 1 t a n 2 x - 2 tan x = 1 - k , where k - 1 and are real numbers. If t a n 2 + = 50 , then a v07 Jan, 2020 (M)Relation between Roots and Coefficients
  8. 8The area of the region (in sq. units), enclosed by the circle x 2 + y 2 = 2 which is not common to the region bounded by the parabola y 2 = 07 Jan, 2020 (M)Area bounded by two curves
  9. 9If the system of linear equations 2 x + 2 a y + a z = 0 2 x + 3 b y + b z = 0 2 x + 4 c y + c z = 0 , where a , b , c R are non-zero and dis07 Jan, 2020 (M)System of Linear Equations
  10. 10Let P be a plane passing through the points 2 , 1 , 0 , 4 , 1 , 1 and 5 , 0 , 1 and R be any point 2 , 1 , 6 .Then the image of R in the pla07 Jan, 2020 (M)Plane in Space
  11. 11For two statements p and q , the logical statement p q q ~ p is equivalent to07 Jan, 2020 (M)Mathematical Reasoning
  12. 12If the distance between the foci of an ellipse is 6 and the distance between its directrix is 12 , then the length of its latus rectum is07 Jan, 2020 (M)Equation of Ellipse
  13. 13An unbiased coin is tossed 5 times. Suppose that a variable X is assigned the value k when k consecutive heads are obtained for k = 3 , 4 , 07 Jan, 2020 (M)Random Variable and its Probability Distribution
  14. 14If y = m x + 4 is a tangent to both the parabolas, y 2 = 4 x and x 2 = 2 b y , then b is equal to07 Jan, 2020 (M)Common Tangent
  15. 15If R e z - 1 2 z + i = 1 , where z = x + i y , then the point x , y lies on a07 Jan, 2020 (M)Algebra of complex numbers
  16. 16If y = y x is the solution of the differential equation , e y d y d x - 1 = e x such that y 0 = 0 , then y 1 is equal to07 Jan, 2020 (M)Linear Differential Equation
  17. 17l i m x → 2 3 x + 3 3 - x - 12 3 - x 2 - 3 1 - x is equal to07 Jan, 2020 (M)Algebraic and Rational Limits
  18. 18If the sum of the coefficients of all even powers of x in the product 1 + x + x 2 + + x 2 n 1 - x + x 2 - x 3 + + x 2 n is 61 , then n is eq07 Jan, 2020 (M)Sum of Series
  19. 19If the variance of the first n natural numbers is 10 and the variance of the first m even natural numbers is 16 , then the value of m + n is07 Jan, 2020 (M)Measures of Dispersion
  20. 20Let A 1 , 0 , B 6 , 2 and C 3 2 , 6 be the vertices of a triangle A B C . If P is a point inside the triangle A B C such that the triangles 07 Jan, 2020 (M)Coordinate System
  21. 21Let the function , f : - 7 , 0 R be continuous on - 7 , 0 and differentiable on - 7 , 0 . If f - 7 = - 3 and f x 2 for all x - 7 , 0 , then 07 Jan, 2020 (M)Mean Value Theorem
  22. 22Let S be the set of points where the function , f x = | 2 - | x - 3 | , x R , is not differentiable. Then x S f f x is equal to07 Jan, 2020 (M)Differentiability
  23. 23If f a + b + 1 - x = f x , for all x , where a and b are fixed positive real numbers, then 1 a + b a b x f x + f x + 1 d x is equal to07 Jan, 2020 (M)Definite Integration by Substitution
  24. 24Let be a root of the equation x 2 + x + 1 = 0 and the matrix A = 1 3 1 1 1 1 2 1 2 4 , then the matrix A 31 is equal to07 Jan, 2020 (M)Product of Matrices
  25. 25The greatest positive integer k , for which 49 k + 1 is a factor of the sum 49 125 + 49 124 + + 49 2 + 49 + 1 , is07 Jan, 2020 (M)Geometric Progression

Physics

  1. 1A litre of dry air at STP expands adiabatically to a volume of 3 litres. If = 1.40 , the work done by air is: 3 1.4 = 4.6555 [Take air to be07 Jan, 2020 (M)Thermodynamic Processes
  2. 2A 60 H P electric motor lifts an elevator having a maximum total load capacity of 2000 k g . If the frictional force on the elevator is 400007 Jan, 2020 (M)Frictional force
  3. 3As shown in the figure, a bob of mass m is tied to a massless string whose other end portion is wound on a fly wheel (disc) of radius r and 07 Jan, 2020 (M)Rolling without Slipping
  4. 4Which of the following gives a reversible operation?07 Jan, 2020 (M)Logic gates
  5. 5Consider a circular coil of wire carrying constant current I , forming a magnetic dipole. The magnetic flux through an infinite plane that c07 Jan, 2020 (M)Magnetic Flux, Faraday's and Lenz law
  6. 6A polarizer - analyser set is adjusted such that the intensity of light coming out of the analyser is just 36 % of the original intensity. A07 Jan, 2020 (M)Polarization of Light
  7. 7A L C R circuit behaves like a clamped harmonic oscillator. Comparing it with a physical spring-mass damped oscillator having damping consta07 Jan, 2020 (M)AC Circuits
  8. 8A satellite of mass M is launched vertically upwards with an initial speed u from the surface of the earth. After it reaches height R ( R = 07 Jan, 2020 (M)Newton's Law of Gravitation
  9. 9A long solenoid of radius R carries a time t dependent current I t = I 0 t 1 - t . A ring of radius 2 R is placed coaxially near its middle.07 Jan, 2020 (M)Magnetic Field
  10. 10Speed of a transverse wave on a straight wire (mass 6.0 g , length 60 c m and area of cross-section 1.0 m m 2 is 90 m s - 1 . If the Young s07 Jan, 2020 (M)Young's Modulus and Breaking Stres
  11. 11Two moles of an ideal gas, with C P C V = 5 3 , are mixed with three moles of another ideal gas C P C V = 4 3 . The value of C P C V for the07 Jan, 2020 (M)Degree of Freedom and Specific Heat
  12. 12If we need a magnification of 375 from a compound microscope of tube length 150 m m and an objective of focal length 5 m m , the focal lengt07 Jan, 2020 (M)Optical Instruments
  13. 13The time period of revolution of electron in its ground state orbit in a hydrogen atom is 1.6 10 - 16 s . The frequency of revolution of the07 Jan, 2020 (M)Atomic Spectrum
  14. 14A parallel plate capacitor has plates of area A separated by distance d between them. It is filled with a dielectric which has a dielectric 07 Jan, 2020 (M)Capacitors with Dielectric
  15. 15The current I 1 (in A ) flowing through 1 resistor in the following circuit is:07 Jan, 2020 (M)Combination of Resistances
  16. 16Visible light of wavelength 6000 × 10 - 8 c m falls normally on a single slit and produces a diffraction pattern. It is found that the secon07 Jan, 2020 (M)Diffraction of Light
  17. 17Three point particles of masses 1.0 k g , 1.5 kg and 2.5 k g are placed at three corners of a right angle triangle of sides 4.0 c m , 3.0 c 07 Jan, 2020 (M)Centre of mass of discrete particles
  18. 18Two infinite planes each with uniform surface charge density + are kept in such a way that the angle between them is 30 o . The electric fie07 Jan, 2020 (M)Electric Field and Electric Field Lines
  19. 19If the magnetic field in a plane electromagnetic wave is given by B = 3 10 - 8 sin 1.6 10 3 x + 48 10 10 t j ^ T , then what will be express07 Jan, 2020 (M)Electromagnetic Waves and Maxwell's equations
  20. 20The radius of gyration of a uniform rod of length l , about an axis passing through a point l 4 away from the centre of the rod, and perpend07 Jan, 2020 (M)Moment of inertia of rigid bodies
  21. 21A Carnot engine operates between two reservoirs of temperatures 900 K and 300 K . The engine performs 1200 J of work per cycle. The heat ene07 Jan, 2020 (M)Heat Engine, Refrigerator and Second Law of Thermodynamics
  22. 22A non-isotropic solid metal cube has coefficients of linear expansion as: 5 10 5 / o C along the x-axis and 5 10 6 / o C along the y and the07 Jan, 2020 (M)Thermal Expansion
  23. 23A loop A B C D E F A of straight edges has six corner points A 0 , 0 , 0 , B 5 , 0 , 0 , C 5 , 5 , 0 , D 0 , 5 , 0 , E 0 , 5 , 5 and F 0 , 007 Jan, 2020 (M)Magnetic Flux, Faraday's and Lenz law
  24. 24A particle m = 1 k g slides down a frictionless track A O C starting from rest at a point A (height 2 m ). After reaching C , the particle c07 Jan, 2020 (M)Energy
  25. 25A beam of electromagnetic radiation of intensity 6.4 10 5 W / cm 2 is comprised of wavelength, = 310 n m . It falls normally on a metal (wor07 Jan, 2020 (M)Photoelectric Effect

Frequently Asked Questions

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

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

The JEE Main 2020 7th January Evening 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.How is the JEE Main 2020 7th January Morning Shift paper structured?

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

Each question on MARKS carries a difficulty rating. Of the 75 rated questions in this paper, 23 (31%) are easy, 42 (56%) are medium and 10 (13%) are hard. Subject wise:

  • Chemistry: 10 easy, 12 medium, 3 hard
  • Mathematics: 3 easy, 18 medium, 4 hard
  • Physics: 10 easy, 12 medium, 3 hard
7.Which chapters were asked the most in the JEE Main 2020 7th January Morning Shift paper?

The chapters with the most questions in each subject were:

  • Chemistry: Chemical Bonding and Molecular Structure (2), Coordination Compounds (2), and General Organic Chemistry (2).
  • Mathematics: Differentiation (2) and Sequences and Series (2).
  • Physics: Electromagnetic Induction (2), Rotational Motion (2), and Thermodynamics (2).
8.Are there any out-of-syllabus questions in the JEE Main 2020 7th January Morning Shift paper?

Yes. 12 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 Morning 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 Morning 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 Morning 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.