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JEE Advanced 2020 Paper 1

Browse the complete Chemistry, Mathematics, and Physics question set from the JEE Advanced 2020 Paper 1 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 paper as a PDF.

This paper has 54 questions in total - 11 easy (20%), 31 moderate (57%) and 12 tough (22%). That's a fairly typical mix for this exam. By subject: Physics 22% easy, 44% moderate, 33% tough; Chemistry 17% easy, 67% moderate, 17% tough; Mathematics 22% easy, 61% moderate, 17% tough.

Chemistry questions were spread across 14 chapters, with General Organic Chemistry (5), Aldehydes and Ketones (1), and Chemical Equilibrium (1) carrying the most weight. Mathematics questions were spread across 15 chapters, with Application of Derivatives (3), Sequences and Series (2), and Area Under Curves (1) carrying the most weight. Physics questions were spread across 14 chapters, with Mechanical Properties of Fluids (3), Electrostatics (2), and Rotational Motion (2) carrying the most weight.

Chemistry

  1. 1If the distribution of molecular speeds of a gas is as per the figure shown below, then the ratio of the most probable, the average, and the2020 (Paper 1)Kinetic theory of gases
  2. 2Which of the following liberates O 2 upon hydrolysis?2020 (Paper 1)Compounds of Alkali Metals
  3. 3A colorless aqueous solution contains nitrates of two metals, X and Y . When it was added to an aqueous solution of NaCl , a white precipita2020 (Paper 1)Identification of Basic Radicals
  4. 4Newman projections P , Q , R and S are shown below: Which one of the following options represent identical molecules?2020 (Paper 1)Isomerism of Organic Compounds
  5. 5Which one of the following structures has the IUPAC name 3 -ethynyl- 2 -hydroxy- 4 -methylhex- 3 -en- 5 -ynoic acid?2020 (Paper 1)IUPAC Nomenclature
  6. 6The Fischer projection of D -erythrose is shown below. D -Erythrose and its isomers are listed as P , Q , R , and S in Column I. Choose the 2020 (Paper 1)Isomerism of Organic Compounds
  7. 7In thermodynamics, the P - V work done is given by w = - dVP ext . For a system undergoing a particular process, the work done is, w = - dV 2020 (Paper 1)First Law and Basic Fundamentals of Thermodynamics
  8. 8With respect to the compounds I - V choose the correct statement(s).2020 (Paper 1)Electron displacement effects
  9. 9In the reaction scheme shown below, Q , R , and S are the major products. The correct structure of2020 (Paper 1)Chemical reactions for aldehydes and ketones
  10. 10Choose the correct statement(s) among the following:2020 (Paper 1)Werner's theory and Valence Bond Theory
  11. 11With respect to hypochlorite, chlorate and perchlorate ions, choose the correct statement(s).2020 (Paper 1)Halogens and Its Compounds
  12. 12The cubic unit cell structure of a compound containing cation M and anion X is shown below. When compared to the anion, the cation has small2020 (Paper 1)Cubic system
  13. 135 . 00 mL of 0 . 10 M oxalic acid solution taken in a conical flask is titrated against NaOH from a burette using phenolphthalein indicator.2020 (Paper 1)Redox titration
  14. 14Consider the reaction A ⇌ B at 1000 K . At time t ' , the temperature of the system was increased to 2000 K and the system was allowed to re2020 (Paper 1)Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application
  15. 15Consider a 70 % efficient hydrogen-oxygen fuel cell working under standard conditions at 1 bar and 298 K . Its cell reaction is H 2 ( g ) + 2020 (Paper 1)Cells and Electrode Potential, Nernst Equation
  16. 16Aluminium reacts with sulfuric acid to form aluminium sulfate and hydrogen. What is the volume of hydrogen gas in liters ( L ) produced at 32020 (Paper 1)Mole concept
  17. 17U 92 238 is known to undergo radioactive decay to form Pb 82 206 by emitting alpha and bet a particles. A rock initially contained 68 10 - 62020 (Paper 1)Integrated rate laws
  18. 18In the following reaction, compound Q is obtained from compound P via an ionic intermediate. What is the degree of unsaturation of Q ?2020 (Paper 1)Conjugation and Aromaticity

Mathematics

  1. 1Suppose a , b denote the distinct real roots of the quadratic polynomial x 2 + 20 x 2020 and suppose c , d denote the distinct complex roots2020 (Paper 1)Relation between Roots and Coefficients
  2. 2If the function f : R R is defined by f x = x x sin x , then which of the following statements is TRUE?2020 (Paper 1)Types of Function (Mapping)
  3. 3Let the functions f : R R and g : R R be defined by f x = e x 1 e x 1 and g x = 1 2 e x 1 + e 1 x . Then the area of the region in the first2020 (Paper 1)Area bounded by Miscellaneous Curves
  4. 4Let a , b and be positive real numbers. Suppose P is an end point of the latus rectum of the parabola y 2 = 4 x , and suppose the ellipse x 2020 (Paper 1)Tangent Normal
  5. 5Let C 1 and C 2 be two biased coins such that the probabilities of getting head in a single toss are 2 3 and 1 3 , respectively. Suppose is 2020 (Paper 1)Conditional Probability and Multiplication Theorem
  6. 6Consider all rectangles lying in the region x , y R R : 0 x 2 a n d 0 y 2 sin 2 x and having one side on the x -axis. The area of the rectan2020 (Paper 1)Maxima Minima
  7. 7Let the function f : R R be defined by f x = x 3 x 2 + x 1 sin x and let g : R R be an arbitrary function. Let f g : R R be the product func2020 (Paper 1)Differentiability
  8. 8Let M be a 3 3 invertible matrix with real entries and let I denote the 3 3 identity matrix. M 1 = a d j a d j M , then which of the followi2020 (Paper 1)Adjoint and its Properties
  9. 9Let S be the set of all complex numbers z satisfying z 2 + z + 1 = 1 . Then which of the following statements is/are TRUE?2020 (Paper 1)Polar and Euler Form
  10. 10Let x , y and z be positive real numbers. Suppose x , y and z are the lengths of the sides of a triangle opposite to its angles X , Y and Z 2020 (Paper 1)Napiers Analogy, Area of Triangle & Half angle Formulae
  11. 11Let L 1 and L 2 be the following straight lines. L 1 : x 1 1 = y 1 = z 1 3 and L 2 : x 1 3 = y 1 = z 1 1 Suppose the straight line L : x l =2020 (Paper 1)Line in Space
  12. 12Which of the following inequalities is/are TRUE?2020 (Paper 1)Properties Involving Inequalities
  13. 13Let m be the minimum possible value of log 3 3 y 1 + 3 y 2 + 3 y 3 , where y 1 , y 2 , y 3 are real numbers for which y 1 + y 2 + y 3 = 9 . 2020 (Paper 1)Inequalities
  14. 14Let a 1 , a 2 , a 3 , . . . . . . . . . be a sequence of positive integers in arithmetic progression with common difference 2 . Also, let b 2020 (Paper 1)Mixed Question on AP and GP
  15. 15Let f : 0 , 2 be the function defined by f x = 3 sin 2 x sin x 4 sin 3 x + 4 . If , 0 , 2 are such that x 0 , 2 : f x 0 = , , then the value2020 (Paper 1)Solving Trigonometric Inequalities
  16. 16In a triangle P Q R , let a = Q R , b = R P and c = P Q . If a = 3 , b = 4 and a . c b c . a b = a a + b , then the value of a b 2 is ______2020 (Paper 1)Product of 2 vectors
  17. 17For a polynomial g x with real coefficients, let m g denote the number of distinct real roots of g x . Suppose S is the set of polynomials w2020 (Paper 1)Mean Value Theorem
  18. 18Let e denote the base of the natural logarithm. The value of the real number a for which the right-hand limit lim x 0 + 1 x 1 e 1 x a is equ2020 (Paper 1)Miscellaneous

Physics

  1. 1A football of radius R is kept on a hole of radius r ( r R ) made on a plank kept horizontally. One end of the plank is now lifted so that i2020 (Paper 1)Torque
  2. 2A light disc made of aluminum (a nonmagnetic material) is kept horizontally and is free to rotate about its axis as shown in the figure. A s2020 (Paper 1)Magnetic Flux, Faraday's and Lenz law
  3. 3A small roller of diameter 20 cm has an axle of diameter 10 cm (see figure below on the left). It is on a horizontal floor and a meter scale2020 (Paper 1)Rotational kinematics
  4. 4A circular coil of radius R and N turns has negligible resistance. As shown in the schematic figure, its two ends are connected to two wires2020 (Paper 1)Force and Torque on Current Carrying Conductor
  5. 5A parallel beam of light strikes a piece of transparent glass having cross section as shown in the figure below. Correct shape of the emerge2020 (Paper 1)Wave Theory and Wavefronts
  6. 6An open-ended U-tube of uniform cross-sectional area contains water (density 10 3 kg m - 3 ). Initially the water level stands at 0 . 29 m f2020 (Paper 1)Pascal's Law
  7. 7A particle of mass m moves in circular orbits with potential energy U r = F r , where F is a positive constant and r is its distance from th2020 (Paper 1)Bohr's Atomic Model
  8. 8The filament of a light bulb has surface area 64 mm 2 . The filament can be considered as a black body at temperature 2500 K emitting radiat2020 (Paper 1)Radiation
  9. 9Sometimes it is convenient to construct a system of units so that all quantities can be expressed in terms of only one physical quantity. In2020 (Paper 1)Dimensions
  10. 10A uniform electric field, E → = - 400 3 j ^ N C - 1 is applied in a region. A charged particle of mass m carrying positive charge q is proje2020 (Paper 1)Projectile motion
  11. 11Shown in the figure is a semicircular metallic strip that has thickness t and resistivity ρ . Its inner radius is R 1 and outer radius is R 2020 (Paper 1)Resistance and Resistivity
  12. 12As shown schematically in the figure, two vessels contain water solutions (at temperature T ) of potassium permanganate KMnO 4 of different 2020 (Paper 1)Pressure and thrust
  13. 13Put a uniform meter scale horizontally on your extended index fingers with the left one at 0 . 00 cm and the right one at 90 . 00 cm . When 2020 (Paper 1)Equilibrium of Forces
  14. 14When water is filled carefully in a glass, one can fill it to a height h above the rim of the glass due to the surface tension of water. To 2020 (Paper 1)Surface tension
  15. 15One end of a spring of negligible unstretched length and spring constant k is fixed at the origin ( 0 , 0 ) . A point particle of mass m car2020 (Paper 1)Electric Dipole
  16. 16Consider one mole of helium gas enclosed in a container at initial pressure P 1 and volume V 1 . It expands isothermally to volume 4 V 1 . A2020 (Paper 1)First Law of Thermodynamics
  17. 17A stationary tuning fork is in resonance with an air column in a pipe. If the tuning fork is moved with a speed of 2 m s - 1 in front of the2020 (Paper 1)Doppler's Effect
  18. 18A circular disc of radius R carries surface charge density ( r ) = 0 1 - r R , where 0 is a constant and r is the distance from the center o2020 (Paper 1)Electric Flux and Gauss Law

Frequently Asked Questions

1.How many questions are in the JEE Advanced 2020 Paper 1 paper?

This paper has 54 questions in total - 18 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 paper.

3.Where can I find the Paper 2 paper for the same year?

The JEE Advanced 2020 Paper 2 paper is listed separately - you can switch to it from the "JEE Advanced Paper Wise PYQs" panel, under JEE Advanced 2020.

4.What is the structure of the JEE Advanced 2020 Paper 1 paper?

The JEE Advanced 2020 Paper 1 paper on MARKS has 54 questions, organised by subject:

  • Chemistry: 18 questions - 6 single-correct, 6 multiple-correct, and 6 numerical-value.
  • Mathematics: 18 questions - 6 single-correct, 6 multiple-correct, and 6 numerical-value.
  • Physics: 18 questions - 6 single-correct, 6 multiple-correct, and 6 numerical-value.
5.What is the difficulty level of the JEE Advanced 2020 Paper 1 paper?

Each question on MARKS carries a difficulty rating. Of the 54 rated questions in this paper, 11 (20%) are easy, 31 (57%) are medium and 12 (22%) are hard. Subject wise:

  • Chemistry: 3 easy, 12 medium, 3 hard
  • Mathematics: 4 easy, 11 medium, 3 hard
  • Physics: 4 easy, 8 medium, 6 hard
6.Which chapters had the most questions in the JEE Advanced 2020 Paper 1 paper?

The chapters with the most questions in each subject were:

  • Chemistry: General Organic Chemistry (5).
  • Mathematics: Application of Derivatives (3) and Sequences and Series (2).
  • Physics: Mechanical Properties of Fluids (3), Electrostatics (2), and Rotational Motion (2).
7.Where can I find the solutions for the JEE Advanced 2020 Paper 1 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 paper is coming soon.

8.How should I use the JEE Advanced 2020 Paper 1 paper to check my preparation?

Set a timer, attempt the 54 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 Advanced. Repeating this with other papers shows whether the same weak spots keep coming back.

9.Will the JEE Advanced 2020 Paper 1 paper help me prepare for JEE Advanced 2027?

Yes. Every past paper shows the question styles and topics JEE Advanced 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.