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JEE Main 2021 17th March Morning Shift

Browse the complete Chemistry, Mathematics, and Physics question set from the JEE Main 2021 17th March 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 90 questions in total - 38 easy (42%), 43 moderate (48%) and 9 tough (10%). That's an easier-than-usual mix for this exam - aim to clear it quickly and save time for the harder papers. By subject: Chemistry 40% easy, 57% moderate, 3% tough; Physics 43% easy, 43% moderate, 13% tough; Mathematics 43% easy, 43% moderate, 13% tough.

Chemistry questions were spread across 25 chapters, with General Organic Chemistry (3), Amines (2), and Ionic Equilibrium (2) carrying the most weight. Mathematics questions were spread across 21 chapters, with Circle (3), Binomial Theorem (2), and Definite Integration (2) carrying the most weight. Physics questions were spread across 22 chapters, with Rotational Motion (4), Atomic Physics (2), and Capacitance (2) carrying the most weight.

Chemistry

  1. 1With respect to drug-enzyme interaction, identify the wrong statement:17 Mar, 2021 (M)Enzymes and Receptors
  2. 2Which of the following is an aromatic compound?17 Mar, 2021 (M)Conjugation and Aromaticity
  3. 3The product A in the above reaction is:17 Mar, 2021 (M)Chemical reactions for aldehydes and ketones
  4. 4A central atom in a molecule has two lone pairs of electrons and forms three single bonds. The shape of this molecule is17 Mar, 2021 (M)Hybridisation and VSEPR Theory
  5. 5Given below are two statements: Statement I: Potassium permanganate on heating at 573 K forms potassium manganate. Statement II: Both potass17 Mar, 2021 (M)Compounds of Transition Metals
  6. 6Which of the following is correct structure of tyrosine?17 Mar, 2021 (M)Properties and Preparation of Amino Acids
  7. 7The above reaction requires which of the following reaction conditions?17 Mar, 2021 (M)Preparation of Phenols
  8. 8The absolute value of the electron gain enthalpy of halogens satisfies:17 Mar, 2021 (M)Periodic properties
  9. 9Which of the following compound CANNOT act as a Lewis base?17 Mar, 2021 (M)Theories of Acids and Bases
  10. 10Reducing smog is a mixture of:17 Mar, 2021 (M)Air Pollution
  11. 11Hoffmann bromamide degradation of benzamide gives product A , which upon heating with CHCl 3 and NaOH gives product B . The structures of A 17 Mar, 2021 (M)Preparation and Properties of Amides
  12. 12Mesityl oxide is a common name of:17 Mar, 2021 (M)IUPAC Nomenclature
  13. 13Which of the following reaction is an example of ammonolysis?17 Mar, 2021 (M)Preparation and Properties of Amines
  14. 14Preview not available - open to view this question.17 Mar, 2021 (M)Reactions of alkenes
  15. 15A colloidal system consisting of a gas dispersed in a solid is called a/an:17 Mar, 2021 (M)Colloids
  16. 16The INCORRECT statement(s) about heavy water is (are) (A) used as a moderator in nuclear reactor (B) obtained as a by-product in fertilizer 17 Mar, 2021 (M)Chemical properties of heavy water
  17. 17The correct order of conductivity of ions in water is:17 Mar, 2021 (M)General Characteristics of Alkali Metals
  18. 18What is the spin-only magnetic moment value (B.M.) of a divalent metal ion with atomic number 25 , in its aqueous solution?17 Mar, 2021 (M)Crystal Field Theory
  19. 19Given below are two statements: Statement-I: Retardation factor R f can be measured in meter/centimetre. Statement-II: R f value of a compou17 Mar, 2021 (M)Purification of Organic Compounds
  20. 20The point of intersection and sudden increase in the slope, in the diagram given below, respectively, indicates:17 Mar, 2021 (M)Reduction to Crude Metal
  21. 21The reaction of white phosphorus on boiling with alkali in inert atmosphere resulted in the formation of product A . The reaction 1 mol of A17 Mar, 2021 (M)Phosphorus and Its Compounds
  22. 220 . 01 moles of a weak acid HA K a = 2 . 0 10 - 6 is dissolved in 1 . 0 L of 0 . 1 M HCl solution. The degree of dissociation of HA is _____17 Mar, 2021 (M)Theories of Acids and Bases
  23. 23A certain orbital has n = 4 and m l = - 3 . The number of radial nodes in this orbital is _______. (Round off to the Nearest Integer).17 Mar, 2021 (M)Quantum mechanical model
  24. 24In the above reaction, 3 . 9 g of benzene on nitration gives 4 . 92 g of nitrobenzene. The percentage yield of nitrobenzene in the above rea17 Mar, 2021 (M)Quantitative measures in chemical equations
  25. 25The mole fraction of a solute in a 100 molal aqueous solution ________ 10 - 2 . (Round off to the Nearest Integer). [Given : Atomic masses: 17 Mar, 2021 (M)Concentration terms
  26. 26For a certain first order reaction 32 % of the reactant is left after 570 s . The rate constant of this reaction is 10 - 3 s - 1 . (Round of17 Mar, 2021 (M)Integrated rate laws
  27. 27The standard enthalpies of formation of Al 2 O 3 and CaO are - 1675 kJ mol - 1 and - 635 kJ mol - 1 respectively. For the reaction 3 CaO + 217 Mar, 2021 (M)Laws of Thermochemistry and Enthalpy Change
  28. 2815 mL of aqueous solution of Fe 2 + in acidic medium completely reacted with 20 mL of 0 . 03 M aqueous Cr 2 O 7 2 - . The molarity of the Fe17 Mar, 2021 (M)Redox titration
  29. 29The oxygen dissolved in water exerts a partial pressure of 20 kPa in the vapour above water. The molar solubility of oxygen in water is ____17 Mar, 2021 (M)Henry's law
  30. 30The pressure exerted by a non-reactive gaseous mixture of 6 . 4 g of methane and 8 . 8 g of carbon dioxide in a 10 L vessel at 27 C is _____17 Mar, 2021 (M)Mixture of gases

Mathematics

  1. 1The inverse of y = 5 log x is:17 Mar, 2021 (M)Inverse of a Function
  2. 2Let a = 2 i ^ - 3 j ^ + 4 k ^ and b = 7 i ^ + j ^ - 6 k ^ If r a = r b , r ( i ^ + 2 j ^ + k ^ ) = - 3 , then r ( 2 i ^ - 3 j ^ + k ^ ) is e17 Mar, 2021 (M)Product of 2 vectors
  3. 3In a triangle P Q R , the co-ordinates of the points P and Q are - 2 , 4 and 4 , - 2 respectively. If the equation of the perpendicular bise17 Mar, 2021 (M)Coordinate System
  4. 4The system of equations k x + y + z = 1 , x + k y + z = k and x + y + z k = k 2 has no solution if k is equal to:17 Mar, 2021 (M)System of Linear Equations
  5. 5If cot - 1 ( ) = cot - 1 2 + cot - 1 8 + cot - 1 18 + cot - 1 32 + . upto 100 terms, then is:17 Mar, 2021 (M)Infinite Series
  6. 6The equation of the plane which contains the y -axis and passes through the point 1 , 2 , 3 is:17 Mar, 2021 (M)Plane in Space
  7. 7If A = 0 sin sin 0 and det A 2 - 1 2 I = 0 , then a possible value of is17 Mar, 2021 (M)Product of Matrices
  8. 8If the Boolean expression ( p q ) ( q * ( ~ p ) ) is a tautology, then the Boolean expression p * ( ~ q ) is equivalent to:17 Mar, 2021 (M)Mathematical Reasoning
  9. 9Two dices are rolled. If both dices have six faces numbered 1 , 2 , 3 , 5 , 7 and 11 , then the probability that the sum of the numbers on t17 Mar, 2021 (M)Classical Definition of Probability
  10. 10If the fourth term in the expansion of x + x log 2 x 7 is 4480 , then the value of x where x N is equal to:17 Mar, 2021 (M)Terms of Binomial Expansion
  11. 11In a school, there are three types of games to be played. Some of the students play two types of games, but none play all the three games. W17 Mar, 2021 (M)Questions on Venn Diagram
  12. 12The sum of possible values of x for tan - 1 x + 1 + cot - 1 1 x - 1 = tan - 1 8 31 is:17 Mar, 2021 (M)Sum and difference of angles
  13. 13The area of the triangle with vertices P ( z ) , Q ( i z ) and R ( z + i z ) is17 Mar, 2021 (M)Geometry of Complex Number
  14. 14The line 2 x - y + 1 = 0 is a tangent to the circle at the point 2 , 5 and the centre of the circle lies on x - 2 y = 4 . Then, the radius o17 Mar, 2021 (M)Tangent to circle
  15. 15Team A consists of 7 boys and n girls and Team B has 4 boys and 6 girls. If a total of 52 single matches can be arranged between these two t17 Mar, 2021 (M)Combination
  16. 16The value of 4 + 1 5 + 1 4 + 1 5 + 1 4 + is:17 Mar, 2021 (M)Relation between Roots and Coefficients
  17. 17Choose the incorrect statement about the two circles whose equations are given below: x 2 + y 2 - 10 x - 10 y + 41 = 0 and x 2 + y 2 - 16 x 17 Mar, 2021 (M)Intersection of Circles
  18. 18Which of the following statement is correct for the function g ( ) for R such that g = 6 3 sin x cos x + sin x d x17 Mar, 2021 (M)Properties of Definite Integration
  19. 19Which of the following is true for y x that satisfies the differential equation d y d x = x y - 1 + x - y ; y 0 = 017 Mar, 2021 (M)Variable Separable Form
  20. 20The value of lim x 0 + cos - 1 x - [ x ] 2 sin - 1 x - [ x ] 2 x - x 3 , where x denotes the greatest integer x is:17 Mar, 2021 (M)Trigonometric and Inverse Trigonometric limits
  21. 21If the function f x = cos ( sin x ) - cos x x 4 is continuous at each point in its domain and f 0 = 1 k , then k is _________.17 Mar, 2021 (M)Continuity
  22. 22If f x = sin cos - 1 1 - 2 2 x 1 + 2 2 x and its first derivative with respect to x is - b a log e 2 when x = 1 , where a and b are integers17 Mar, 2021 (M)Differentiation of Inverse Trigonometric Functions
  23. 23Let there be three independent events E 1 , E 2 and E 3 . The probability that only E 1 occurs is only E 2 occurs is and only E 3 occurs is 17 Mar, 2021 (M)Independent Events
  24. 24If a = i ^ + j ^ + 3 k ^ , b = - i ^ - j ^ - k ^ and c = i ^ - 2 j ^ - k ^ such that a b = 1 and b c = - 3 , then 1 3 ( ( a b ) c ) is equal17 Mar, 2021 (M)Scalar Triple Product
  25. 25If A = 2 3 0 - 1 , then the value of det A 4 + det A 10 - ( Adj ( 2 A ) ) 10 is equal to ________.17 Mar, 2021 (M)Adjoint and its Properties
  26. 26If [ ] represents the greatest integer function, then the value of 0 2 x 2 - cos x d x is ___________.17 Mar, 2021 (M)Properties of Definite Integration
  27. 27The minimum distance between any two points P 1 and P 2 while considering point P 1 on one circle and point P 2 on the other circle for the 17 Mar, 2021 (M)Intersection of Circles
  28. 28If the equation of the plane passing through the line of intersection of the planes 2 x - 7 y + 4 z - 3 = 0 , 3 x - 5 y + 4 z + 11 = 0 and t17 Mar, 2021 (M)Plane in Space
  29. 29If ( 2021 ) 3762 is divided by 17 , then the remainder is _______.17 Mar, 2021 (M)Remainder and Divisibility Problems
  30. 30The maximum value of z in the following equation z = 6 x y + y 2 , where 3 x + 4 y 100 and 4 x + 3 y 75 for x 0 and y 0 is17 Mar, 2021 (M)Maxima Minima

Physics

  1. 1A triangular plate is shown. A force F = 4 i ^ - 3 j ^ is applied at point P . The torque at point P with respect to point O and Q are:17 Mar, 2021 (M)Torque
  2. 2When two soap bubbles of radii a and b ( b a ) coalesce, the radius of curvature of common surface is:17 Mar, 2021 (M)Surface tension
  3. 3A polyatomic ideal gas has 24 vibrational modes. What is the value of ?17 Mar, 2021 (M)Degree of Freedom and Specific Heat
  4. 4If an electron is moving in the n th orbit of the hydrogen atom, then its velocity ( v n ) for the n th orbit is given as:17 Mar, 2021 (M)Bohr's Atomic Model
  5. 5An electron of mass m and a photon have same energy E . The ratio of wavelength of electron to that of photon is : ( c being the velocity of17 Mar, 2021 (M)Matter Waves
  6. 6Two identical metal wires of thermal conductivities K 1 and K 2 respectively are connected in series. The effective thermal conductivity of 17 Mar, 2021 (M)Conduction
  7. 7The vernier scale used for measurement has a positive zero error of 0 . 2 mm . If while taking a measurement it was noted that 0 on the vern17 Mar, 2021 (M)Experimental Physics
  8. 8An A C current is given by I = I 1 s i n t + I 2 c o s t . A hot wire ammeter will give a reading:17 Mar, 2021 (M)Alternating Current, Voltage and Power
  9. 9A modern grand-prix racing car of mass m is travelling on a flat track in a circular arc of radius R with a speed v . If the coefficient of 17 Mar, 2021 (M)Uniform Circular Motion
  10. 10A car accelerates from rest at a constant rate for some time after which it decelerates at a constant rate to come to rest. If the total tim17 Mar, 2021 (M)Graphs of motion in one dimension
  11. 11A solenoid of 1000 turns per metre has a core with relative permeability 500 . Insulated windings of the solenoid carry an electric current 17 Mar, 2021 (M)Magnetic Field
  12. 12A mass M hangs on a massless rod of length l which rotates at a constant angular frequency. The mass M moves with steady speed in a circular17 Mar, 2021 (M)Angular momentum and Angular impulse
  13. 13For what value of displacement the kinetic energy and potential energy of a simple harmonic oscillation become equal?17 Mar, 2021 (M)Energy of Simple Harmonic Motion
  14. 14A Carnot s engine working between 400 K and 800 K has a work output of 1200 J per cycle. The amount of heat energy supplied to the engine fr17 Mar, 2021 (M)Heat Engine, Refrigerator and Second Law of Thermodynamics
  15. 15The thickness at the centre of a plano convex lens is 3 mm and the diameter is 6 cm . If the speed of light in the material of the lens is 217 Mar, 2021 (M)Combination of Lens and Mirrors
  16. 16The output of the given combination gates represents:17 Mar, 2021 (M)Logic gates
  17. 17A boy is rolling a 0 . 5 kg ball on the frictionless floor with the speed of 20 m s - 1 . The ball gets deflected by an obstacle on the way.17 Mar, 2021 (M)Energy
  18. 18Which level of the single ionized carbon has the same energy as the ground state energy of hydrogen atom?17 Mar, 2021 (M)Bohr's Atomic Model
  19. 19Two ideal polyatomic gases at temperatures T 1 and T 2 are mixed so that there is no loss of energy. If F 1 and F 2 , m 1 and m 2 , n 1 and 17 Mar, 2021 (M)Pressure and Energy of gas
  20. 20A current of 10 A exists in a wire of cross-sectional area of 5 mm 2 with a drift velocity of 2 10 - 3 m s - 1 . The number of free electron17 Mar, 2021 (M)Electric Current and Drift of Electrons
  21. 21For VHF signal broadcasting, _______ km 2 of maximum service area will be covered by an antenna tower of height 30 m , if the receiving ante17 Mar, 2021 (M)Communication System
  22. 22The angular speed of truck wheel is increased from 900 rpm to 2460 rpm in 26 seconds. The number of revolutions by the truck engine during t17 Mar, 2021 (M)Rotational kinematics
  23. 23The equivalent resistance of series combination of two resistors is s . When they are connected in parallel, the equivalent resistance is p 17 Mar, 2021 (M)Combination of Resistances
  24. 24Four identical rectangular plates with length, l = 2 cm and breadth, b = 3 2 cm are arranged as shown in figure. The equivalent capacitance 17 Mar, 2021 (M)Grouping of capacitors
  25. 25The radius in kilometer to which the present radius of earth ( R = 6400 km ) to be compressed so that the escape velocity is increased 10 ti17 Mar, 2021 (M)Gravitational potential and Potential Energy
  26. 26Consider two identical springs each of spring constant k and negligible mass compared to the mass M as shown. Fig. 1 shows one of them and F17 Mar, 2021 (M)Applications of SHM
  27. 27The following bodies, 1 a ring 2 a disc 3 a solid cylinder 4 a solid sphere, of same mass m and radius R are allowed to roll down without sl17 Mar, 2021 (M)Rolling without Slipping
  28. 28A parallel plate capacitor whose capacitance C is 14 pF is charged by a battery to a potential difference V = 12 V between its plates. The c17 Mar, 2021 (M)Force and Energy stored in capacitor
  29. 29Two blocks ( m = 0 . 5 kg and M = 4 . 5 kg ) are arranged on a horizontal frictionless table as shown in the figure. The coefficient of stat17 Mar, 2021 (M)Frictional force
  30. 30If 2 . 5 10 - 6 N average force is exerted by a light wave on a non-reflecting surface of 30 cm 2 area during 40 min of time span, the energ17 Mar, 2021 (M)Electromagnetic Waves and Maxwell's equations

Frequently Asked Questions

1.How many questions are in the JEE Main 2021 17th March Morning Shift paper?

This paper has 90 questions in total - 30 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 17th March 2021 morning shift.

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

The JEE Main 2021 17th March Evening Shift paper is listed separately - you can switch to it from the "JEE Main Paper Wise PYQs" panel, under JEE Main 17th March 2021.

5.What is the structure of the JEE Main 2021 17th March Morning Shift paper?

The JEE Main 2021 17th March Morning Shift paper on MARKS has 90 questions, organised by subject:

  • Chemistry: 30 questions - 20 single-correct and 10 numerical-value.
  • Mathematics: 30 questions - 20 single-correct and 10 numerical-value.
  • Physics: 30 questions - 20 single-correct and 10 numerical-value.
6.What is the difficulty level of the JEE Main 2021 17th March Morning Shift paper?

Each question on MARKS carries a difficulty rating. Of the 90 rated questions in this paper, 38 (42%) are easy, 43 (48%) are medium and 9 (10%) are hard. Subject wise:

  • Chemistry: 12 easy, 17 medium, 1 hard
  • Mathematics: 13 easy, 13 medium, 4 hard
  • Physics: 13 easy, 13 medium, 4 hard
7.Which chapters had the most questions in the JEE Main 2021 17th March Morning Shift paper?

The chapters with the most questions in each subject were:

  • Chemistry: General Organic Chemistry (3), Amines (2), and Ionic Equilibrium (2).
  • Mathematics: Circle (3), Binomial Theorem (2), and Definite Integration (2).
  • Physics: Rotational Motion (4), Atomic Physics (2), and Capacitance (2).
8.Are there any out-of-syllabus questions in the JEE Main 2021 17th March Morning Shift paper?

Yes. 17 of the 90 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 2021 17th March 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 2021 17th March Morning Shift paper to check my preparation?

Set a timer, attempt the 90 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 2021 17th March 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.