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JEE Main 2020 3rd September Morning Shift

Browse the complete Chemistry, Mathematics, and Physics question set from the JEE Main 2020 3rd September 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 - 18 easy (24%), 40 moderate (53%) and 17 tough (23%). That's a fairly typical mix for this exam. By subject: Physics 36% easy, 44% moderate, 20% tough; Chemistry 16% easy, 60% moderate, 24% tough; Mathematics 20% easy, 56% moderate, 24% tough.

Chemistry questions were spread across 17 chapters, with General Organic Chemistry (3), Chemical Bonding and Molecular Structure (2), and Coordination Compounds (2) carrying the most weight. Mathematics questions were spread across 20 chapters, with Binomial Theorem (2), Limits (2), and Quadratic Equation (2) carrying the most weight. Physics questions were spread across 20 chapters, with Rotational Motion (3), Current Electricity (2), and Magnetic Effects of Current (2) carrying the most weight.

Chemistry

  1. 1Henry s constant (in kbar) for four gases , , and in water at 298 K is given below : K H 50 2 2 10 - 5 0 . 5 (density of water = 10 3 k gm -03 Sep, 2020 (M)Henry's law
  2. 2Which of the following compounds produces an optically inactive compound on hydrogenation?03 Sep, 2020 (M)Reactions of alkenes
  3. 3An organic compound [A], molecular formula C 10 H 20 O 2 was hydrolyzed with dilute sulphuric acid to given a carboxylic acid [B] and an alc03 Sep, 2020 (M)Preparation and Properties of Carboxylic Acids
  4. 4The mechanism of Sn1 reaction is given as: R - X R X R X Y R - Y + X lon pair Solvent Speparated ion pair A student writes general character03 Sep, 2020 (M)Preparation and Properties of Monohalides
  5. 5Which one of the following compounds possesses the most acidic hydrogen?03 Sep, 2020 (M)Electron displacement effects
  6. 6Thermal power plants can lead to :03 Sep, 2020 (M)Air Pollution
  7. 7An acidic buffer is obtained on mixing:03 Sep, 2020 (M)Buffer solutions
  8. 8If the boiling point of H 2 O is 373 K , and the boiling point of H 2 S will be :03 Sep, 2020 (M)Van Der Waals Forces, Hydrogen Bonding and Metallic Bonding
  9. 9Tyndall effect is observed when :03 Sep, 2020 (M)Properties of colloidal solution
  10. 10Glycerol is separated in soap industries by :03 Sep, 2020 (M)Purification of Organic Compounds
  11. 11The electronic spectrum of Ti H 2 O 6 3 + shows a single broad peak with a maximum at 20 , 300 cm - 1 . The crystal field stabilization ener03 Sep, 2020 (M)Crystal Field Theory
  12. 12The Kjeldahl method of Nitrogen estimation fails for which of the following reaction products?03 Sep, 2020 (M)Quantitative analysis of organic compounds
  13. 13The atomic number of the element unnilennium is :03 Sep, 2020 (M)Modern periodic table
  14. 14It is true that:03 Sep, 2020 (M)Integrated rate laws
  15. 15Let C NaCl and C BaSO 4 , be the conductances (in S) measured for saturated aqueous solutions of NaCl and B a S O 4 respectively, at a tempe03 Sep, 2020 (M)Conductance and Conductivity
  16. 16The complex that can show optical activity is :03 Sep, 2020 (M)Isomerism of coordination compounds
  17. 17Aqua regia is used for dissolving noble metals (Au, Pt, etc.). The gas evolved in this process is03 Sep, 2020 (M)Nitrogen and Its Compounds
  18. 18In a molecule of pyrophosphoric acid, the number of P - O H , P = 0 and P - O - P bonds/moiety(ies) respectively are :03 Sep, 2020 (M)Phosphorus and Its Compounds
  19. 19The antifertility drug Novestrol can react with :03 Sep, 2020 (M)Drugs and It's Classification
  20. 20Of the species, NO , NO + , NO 2 + and NO - , the one with minimum bond strength is :03 Sep, 2020 (M)Molecular Orbital Theory
  21. 21The mole fraction of glucose C 6 H 12 O 6 in an aqueous binary solution is 0 . 1 . The mass percentage of water in it, to the nearest intege03 Sep, 2020 (M)Concentration terms
  22. 22The photoelectric current from Na (work function, w 0 = 2 . 3 eV ) is stopped by the output voltage of the cell Pt ( s ) H 2 ( g , 1 bar ) |03 Sep, 2020 (M)Cells and Electrode Potential, Nernst Equation
  23. 23An element with molar mass 2 .7 10 2 kg mol 1 forms a cubic unit cell with edge length 405 pm . If its density is 2 . 7 10 3 kg m - 3 , the 03 Sep, 2020 (M)Cubic system
  24. 24The total number of monohalogenated organic products in the following (including stereoisomers) reaction is A ( Simplest optically active al03 Sep, 2020 (M)Reactions of alkanes
  25. 25The volume strength of 8 . 9 MH 2 O 2 solution calculated at 273 K and 1 atm is ........ R = 0 .0821 L atm K 1 mol 1 (rounded off to the nea03 Sep, 2020 (M)Concentration terms

Mathematics

  1. 1If y 2 + log e cos 2 x = y , x - 2 , 2 then :03 Sep, 2020 (M)Differentiation of composite functions
  2. 22 - sin - 1 4 5 + sin - 1 5 13 + sin - 1 16 65 is equal to :03 Sep, 2020 (M)Converting one Inverse T function to other Inverse T
  3. 3If the first term of an A . P . is 3 and the sum of its first 25 terms is equal to the sum of its next 15 terms, then the common difference 03 Sep, 2020 (M)Arithmetic Progression
  4. 4The proposition p ~ p ~ q is equivalent to :03 Sep, 2020 (M)Mathematical Reasoning
  5. 5Let P be a point on the parabola, y 2 = 12 x and N be the foot of the perpendicular drawn from P , on the axis of the parabola. A line is no03 Sep, 2020 (M)standard equation of parabola
  6. 6Consider the two sets: A = { m R : both the roots of x 2 - ( m + 1 ) x + m + 4 = 0 are real } and B = [ - 3 , 5 ) Which of the following is 03 Sep, 2020 (M)Relation between Roots and Coefficients
  7. 7If and are the roots of the equation x 2 + p x + 2 = 0 and 1 and 1 are the roots of the equation 2 x 2 + 2 q x + 1 = 0 , then - 1 - 1 + 1 + 03 Sep, 2020 (M)Relation between Roots and Coefficients
  8. 8If = x 2 2 x 3 3 x 4 2 x 3 3 x 4 4 x 5 3 x 5 5 x 8 10 x 17 = A x 3 + B x 2 + C x + D , then B + C is equal to :03 Sep, 2020 (M)Differentiation and Integration of Determinants
  9. 9The area (in sq. units) of the region x , y : 0 y x 2 + 1 , 0 y x + 1 , 1 2 x 2 is03 Sep, 2020 (M)Area bounded by two curves
  10. 10The foot of the perpendicular drawn from the point 4 , 2 , 3 to the line joining the points 1 , - 2 , 3 and 1 , 1 , 0 lies on the plane03 Sep, 2020 (M)Plane in Space
  11. 11The solution curve of the differential equation, 1 + e - x 1 + y 2 d y d x = y 2 which passes through the point 0 , 1 , is03 Sep, 2020 (M)Variable Separable Form
  12. 12A die is thrown two times and the sum of the scores appearing on the die is observed to be a multiple of 4 . Then the conditional probabilit03 Sep, 2020 (M)Conditional Probability and Multiplication Theorem
  13. 13- - x d x is equal to03 Sep, 2020 (M)Properties of Definite Integration
  14. 14For the frequency distribution: Variate x : x 1 , x 2 , x 3 , , x 15 Frequency f : f 1 , f 2 , f 3 , , f 15 where 0 x 1 x 2 x 3 x 15 = 10 an03 Sep, 2020 (M)Measures of Dispersion
  15. 15The lines r = i ^ - j ^ + l 2 i ^ + k ^ and r = 2 i ^ - j ^ + m i ^ + j ^ - k ^03 Sep, 2020 (M)Line and Plane
  16. 16Let t denote the greatest integer t . If R 0 , 1 , lim x 0 1 x + x x + x = L , then L is equal to03 Sep, 2020 (M)Existance of Limit
  17. 17The value of ( 2 1 P 0 3 2 P 1 + 4 3 P 2 . . . . . . . . up to 51 th term) + ( 1 ! 2 ! + 3 ! . . . . . . . up to 51 th term) is equal to03 Sep, 2020 (M)Properties of Binomial Coefficients
  18. 18The function, f x = 3 x - 7 x 2 3 , x R , is increasing for all x lying in03 Sep, 2020 (M)Monotonicity
  19. 19If the number of integral terms in the expansion of 3 1 2 + 5 1 8 n is exactly 33 , then the least value of n is03 Sep, 2020 (M)Terms of Binomial Expansion
  20. 20The value of 0 . 16 log 2 . 5 1 3 + 1 3 2 + 1 3 3 + . is __________03 Sep, 2020 (M)Geometric Progression
  21. 21Let A = x 1 1 0 , x R and A 4 = a i j . If a 11 = 109 , then a 22 is equal to_____________.03 Sep, 2020 (M)Product of Matrices
  22. 22The diameter of the circle, whose Centre lies on the line x + y = 2 in the first quadrant and which touches both the lines x = 3 and y = 2 i03 Sep, 2020 (M)Equation of Circle & its intercept
  23. 23If 1 + i 1 - i m 2 = 1 + i i - 1 n 3 = 1 , m , n N then the greatest common divisor of the least values of m and n is03 Sep, 2020 (M)Power of iota
  24. 24If lim x 0 1 x 8 1 cos x 2 2 cos x 2 4 + cos x 2 2 cos x 2 4 = 2 k then the value of k is03 Sep, 2020 (M)Trigonometric and Inverse Trigonometric limits
  25. 25A hyperbola having the transverse axis of length, 2 has the same foci as that of the ellipse, 3 x 2 + 4 y 2 = 12 then this hyperbola does no03 Sep, 2020 (M)Mixed Questions of Ellipse and Hyperbola

Physics

  1. 1In a radioactive material, a fraction of active material remaining after the time t i s 9 16 . The fraction that was remaining after the tim03 Sep, 2020 (M)Radioactivity
  2. 2An elliptical loop having resistance R , of semi major axis a , and semi minor axis b is placed in a magnetic field as shown in the figure. 03 Sep, 2020 (M)Electric Power and Heating Effect of Current
  3. 3Consider a gas of triatomic molecules. The molecules are assumed to be triangular and made of massless rigid rods whose vertices are occupie03 Sep, 2020 (M)Degree of Freedom and Specific Heat
  4. 4Two isolated conducting spheres S 1 and S 2 of radius 2 3 R and 1 3 R have 12 C and - 3 C charges, respectively, and are at a large distance03 Sep, 2020 (M)Electric Charge and Coulomb's law
  5. 5Moment of inertia of a cylinder of mass m , length L and radius R about an axis passing through its centre and perpendicular to the axis of 03 Sep, 2020 (M)Moment of inertia of rigid bodies
  6. 6Model a torch battery of length l to be made up of a thin cylindrical bar of radius a and a concentric thin cylindrical shell of radius b fi03 Sep, 2020 (M)Electric Power and Heating Effect of Current
  7. 7Magnitude of magnetic field (in SI units) at the centre of a hexagonal shape coil of side 10 cm , 50 turns and carrying current I (Ampere) i03 Sep, 2020 (M)Magnetic Field
  8. 8A balloon filled with helium 32 C and 1 .7 atm bursts. Immediately after wards the expansion of helium can be considered as :03 Sep, 2020 (M)Thermodynamic Processes
  9. 9A 750 Hz , 20 V rms source is connected to a resistance of 100 , an inductance of 0 . 1803 H and a capacitance of 10 F all in series. The ti03 Sep, 2020 (M)AC Circuits
  10. 10The magnetic field of a plane electromagnetic wave is B = 3 10 - 8 sin 200 ( y + c t ) i ^ T . Where, c = 3 10 8 m s - 1 is the speed of lig03 Sep, 2020 (M)Electromagnetic Waves and Maxwell's equations
  11. 11A charged particle carrying charge 1 C is moving with velocity ( 2 i ^ + 3 j ^ + 4 k ^ ) m s - 1 . If an external magnetic field of ( 5 i ^ 03 Sep, 2020 (M)Force and Torque on Current Carrying Conductor
  12. 12In the circuit shown in the figure, the total charge is 750 C and the voltage across capacitor C 2 is 20 V . Then the charge on capacitor C 03 Sep, 2020 (M)Grouping of capacitors
  13. 13In a Young s double slit experiment, light of 500 nm is used to produce and interference pattern. When the distance between the slits is 0 .03 Sep, 2020 (M)Youngs Double Slit Experiment
  14. 14A block of mass m = 1 kg slides with velocity v = 6 m s - 1 on a frictionless horizontal surface and collides with a uniform vertical rod an03 Sep, 2020 (M)Angular momentum and Angular impulse
  15. 15Using screw gauge of pitch 0 . 1 cm and 50 divisions on its circular scale, the thickness of an object is measured. It should correctly be r03 Sep, 2020 (M)Experimental Physics
  16. 16A uniform thin rope of length 12 m and mass 6 kg hangs vertically from a rigid support and a block of mass 2 kg is attached to its free end.03 Sep, 2020 (M)Basics of Mechanical Waves
  17. 17When the wavelength of radiation falling on a metal is changed from 500 nm to 200 nm , the maximum kinetic energy of the photoelectrons beco03 Sep, 2020 (M)Photoelectric Effect
  18. 18When a diode is forward biased, it has a voltage drop of 0 . 5 V . the safe limit of current through the diode is 10 mA . If a battery of em03 Sep, 2020 (M)Diodes
  19. 19Pressure inside two soap bubbles are 1 . 01 and 1 . 02 atmosphere, respectively. The ratio of their volumes is :03 Sep, 2020 (M)Surface tension
  20. 20A satellite is moving in a low nearly circular orbit around the earth. Its radius is roughly equal to that of the earth s radius R e . By fi03 Sep, 2020 (M)Motion of satellite
  21. 21An observer can see through a small hole on the side of a jar (radius 15 cm ) at a point at height of 15 cm from the bottom (see figure). Th03 Sep, 2020 (M)Refraction of light from plane surface
  22. 22A cricket ball of mass 0 . 15 kg is thrown vertically up by a bowling machine so that it rises to a maximum height of 20 m after leaving the03 Sep, 2020 (M)Energy
  23. 23A person of 80 kg mass is standing on the rim of a circular platform of mass 200 kg rotating about its axis at 5 revolutions per minute (rpm03 Sep, 2020 (M)Rotational kinematics
  24. 24When a long glass capillary tube of radius 0 . 015 cm is dipped in a liquid, the liquid rises to a height of 15 cm within it. If the contact03 Sep, 2020 (M)Surface tension
  25. 25A bakelite beaker has volume capacity of 500 cc at 30 C . When it is partially filled with V m volume (at 30 C ) of mercury, it is found tha03 Sep, 2020 (M)Thermal Expansion

Frequently Asked Questions

1.How many questions are in the JEE Main 2020 3rd September 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 3rd September 2020 morning shift.

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

The JEE Main 2020 3rd September Evening Shift paper is listed separately - you can switch to it from the "JEE Main Paper Wise PYQs" panel, under JEE Main 3rd September 2020.

5.What is the structure of the JEE Main 2020 3rd September Morning Shift paper?

The JEE Main 2020 3rd September 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.What is the difficulty level of the JEE Main 2020 3rd September Morning Shift paper?

Each question on MARKS carries a difficulty rating. Of the 75 rated questions in this paper, 18 (24%) are easy, 40 (53%) are medium and 17 (23%) are hard. Subject wise:

  • Chemistry: 4 easy, 15 medium, 6 hard
  • Mathematics: 5 easy, 14 medium, 6 hard
  • Physics: 9 easy, 11 medium, 5 hard
7.Which chapters had the most questions in the JEE Main 2020 3rd September Morning Shift paper?

The chapters with the most questions in each subject were:

  • Chemistry: General Organic Chemistry (3), Chemical Bonding and Molecular Structure (2), and Coordination Compounds (2).
  • Mathematics: Binomial Theorem (2), Limits (2), and Quadratic Equation (2).
  • Physics: Rotational Motion (3), Current Electricity (2), and Magnetic Effects of Current (2).
8.Are there any out-of-syllabus questions in the JEE Main 2020 3rd September Morning 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 3rd September 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 3rd September 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 3rd September 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.