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JEE Main 2021 26th February Evening Shift

Browse the complete Chemistry, Mathematics, and Physics question set from the JEE Main 2021 26th February 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 90 questions in total - 32 easy (36%), 45 moderate (50%) and 13 tough (14%). That's a fairly typical mix for this exam. By subject: Physics 30% easy, 57% moderate, 13% tough; Chemistry 63% easy, 30% moderate, 7% tough; Mathematics 13% easy, 63% moderate, 23% tough.

Chemistry questions were spread across 21 chapters, with Aldehydes and Ketones (4), Amines (2), and Biomolecules (2) carrying the most weight. Mathematics questions were spread across 20 chapters, with Application of Derivatives (3), Definite Integration (3), and Sequences and Series (3) carrying the most weight. Physics questions were spread across 20 chapters, with Oscillations (4), Ray Optics (3), and Thermodynamics (3) carrying the most weight.

Chemistry

  1. 1Considering the above reaction, the major product among the following is:26 Feb, 2021 (E)Chemical reactions for aldehydes and ketones
  2. 2Ceric ammonium nitrate and CHCl 3 / alc . KOH are used for the identification of functional groups present in _ and _ respectively.26 Feb, 2021 (E)Preparation and Properties of Amines
  3. 3Calgon is used for water treatment. Which of the following statement is NOT true about Calgon?26 Feb, 2021 (E)Preparation and Properties of Water
  4. 4Identify A in the given reaction.26 Feb, 2021 (E)Reactions of Alcohols
  5. 5Match List- I with List- II . List- I List- II (a) (i) Wurtz reaction (b) (ii) Sandmeyer reaction (c) 2 CH 3 CH 2 Cl + 2 Na Ether C 2 H 5 - 26 Feb, 2021 (E)Preparation and Properties of Aryl Halides
  6. 6Which of the following forms of hydrogen emits low energy - particles?26 Feb, 2021 (E)Preparation and Properties of Hydrogen
  7. 72 , 4 - DNP test can be used to identify :26 Feb, 2021 (E)Tests for aldehyde and ketones
  8. 8Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R . Assertion A : In T l I 3 , isomorphou26 Feb, 2021 (E)Properties of ionic compounds
  9. 9Match List- I with List- II . List- I List- II (a) Sucrose (i) - D - Galactose and - D - Glucose (b) Lactose (ii) - D - Glucose and - D - Fr26 Feb, 2021 (E)Disaccharides and Polysaccharides
  10. 10The correct order of electron gain enthalpy is:26 Feb, 2021 (E)Periodic properties
  11. 11Identify A in the given chemical reaction.26 Feb, 2021 (E)Chemical reactions for aldehydes and ketones
  12. 12In C 1 H 2 = C 2 = C 3 H - C 4 H 3 molecule, the hybridization of carbon 1 , 2 , 3 and 4 respectively, are :26 Feb, 2021 (E)Properties and Preparation of Alkenes
  13. 13Match List- I with List- II List- I List- II (a) Sodium Carbonate (i) Deacon (b) Titanium (ii) Castner-Kellner (c) Chlorine (iii) van-Arkel 26 Feb, 2021 (E)Refining of Crude Metal
  14. 14Which pair of oxides is acidic in nature?26 Feb, 2021 (E)Periodic properties
  15. 15A. Phenyl methanamine B. N , N -Dimethylaniline C. N -Methyl aniline D. Benzenamine Choose the correct order of basic nature of the above am26 Feb, 2021 (E)Preparation and Properties of Amines
  16. 16Seliwanoff test and Xanthoproteic test are used for the identification of _ and _ respectively.26 Feb, 2021 (E)Proteins
  17. 17Identify A in the following chemical reaction.26 Feb, 2021 (E)Chemical reactions for aldehydes and ketones
  18. 18Match List- I with List- II . List- I List- II (a) Siderite (i) Cu (b) Calamine (ii) Ca (c) Malachite (iii) Fe (d) Cryolite (iv) Al (v) Zn C26 Feb, 2021 (E)Minerals and ores
  19. 19Match List- I with List- II . List- I List- II (Molecule) (Bond order) (a) Ne 2 (i) 1 (b) N 2 (ii) 2 (c) F 2 (iii) 0 (d) O 2 (iv) 3 Choose t26 Feb, 2021 (E)Molecular Orbital Theory
  20. 20The nature of charge on resulting colloidal particles when FeCl 3 is added to excess of hot water is:26 Feb, 2021 (E)Properties of colloidal solution
  21. 21If the activation energy of a reaction is 80 . 9 kJ mol - 1 , the fraction of molecules at 700 K , having enough energy to react to form pro26 Feb, 2021 (E)Arrhenius theory
  22. 22Emf of the following cell at 298 K in V is x 10 - 2 Zn Zn 2 + 0 . 1 M Ag + 0 . 01 M Ag The value of x is ________________ (Rounded off to th26 Feb, 2021 (E)Cells and Electrode Potential, Nernst Equation
  23. 23In mildly alkaline medium, thiosulphate ion is oxidized by MnO 4 - to A . The oxidation state of sulphur in A is_26 Feb, 2021 (E)Oxidation number
  24. 24The number of stereo isomers possible for Co ox 2 Br NH 3 2 - is __________. [ ox = oxalate]26 Feb, 2021 (E)Isomerism of coordination compounds
  25. 25When 12 . 2 g of benzoic acid is dissolved in 100 g of water, the freezing point of solution was found to be - 0 . 93 C K f H 2 O = 1 . 86 K26 Feb, 2021 (E)Colligative Properties and Abnormal Molecular Masses
  26. 26A ball weighing 10 g is moving with a velocity of 90 m s - 1 . If the uncertainty in its velocity is 5 % , then the uncertainty in its posit26 Feb, 2021 (E)Dual Behaviour of Matter and Heisenberg Uncertainty Principle
  27. 27The average S - F bond energy in kJ mol - 1 of SF 6 is _. (Rounded off to the nearest integer) [Given : The values of standard enthalpy of f26 Feb, 2021 (E)Laws of Thermochemistry and Enthalpy Change
  28. 28The number of octahedral voids per lattice site in a lattice is_. (Rounded off to the nearest integer)26 Feb, 2021 (E)Cubic system
  29. 29The pH of ammonium phosphate solution, if pk a of phosphoric acid and pk b of ammonium hydroxide are 5 . 23 and 4 . 75 respectively, is26 Feb, 2021 (E)PH of solutions
  30. 30The NaNO 3 weighed out to make 50 mL of an aqueous solution containing 70 . 0 mg Na + per mL is_ g . (Rounded off to the nearest integer) [G26 Feb, 2021 (E)Mole concept

Mathematics

  1. 1Let A = 1 , 2 , 3 , , 10 and f : A A be defined as f k = k + 1 if k is odd k if k is even Then the number of possible functions g : A A such26 Feb, 2021 (E)Types of Function (Mapping)
  2. 2The sum of the series n = 1 n 2 + 6 n + 10 2 n + 1 ! is equal to26 Feb, 2021 (E)Summation of Series
  3. 3The triangle of maximum area that can be inscribed in a given circle of radius r is :26 Feb, 2021 (E)Maxima Minima
  4. 4Let A 1 be the area of the region bounded by the curves y = sin x , y = cos x and y -axis in the first quadrant. Also, let A 2 be the area o26 Feb, 2021 (E)Area bounded by two curves
  5. 5Consider the following system of equations: x + 2 y - 3 z = a 2 x + 6 y - 11 z = b x - 2 y + 7 z = c where a , b and c are real constants. T26 Feb, 2021 (E)System of Linear Equations
  6. 6Let L be a line obtained from the intersection of two planes x + 2 y + z = 6 and y + 2 z = 4 . If point P , , is the foot of perpendicular f26 Feb, 2021 (E)Plane in Space
  7. 7Let f : R R be defined as f x = 2 sin - x 2 , if x - 1 a x 2 + x + b , if - 1 x 1 sin x , if x 1 If f x is continuous on R , then a + b equa26 Feb, 2021 (E)Continuity
  8. 8If vectors a 1 = x i ^ - j ^ + k ^ and a 2 = i ^ + y j ^ + z k ^ are collinear, then a possible unit vector parallel to the vector x i ^ + y26 Feb, 2021 (E)Algebra of Vectors
  9. 9Let F 1 A , B , C = A ~ B ~ C A B ~ A and F 2 A , B = A B B ~ A be two logical expressions. Then :26 Feb, 2021 (E)Mathematical Reasoning
  10. 10For x 0 , if f x = 1 x log e t 1 + t d t , then f e + f 1 e is equal to26 Feb, 2021 (E)Definite Integration by Substitution
  11. 11Let f x be a differentiable function at x = a with f ' a = 2 and f a = 4 . Then lim x a x f a - a f x x - a equals:26 Feb, 2021 (E)Algebraic and Rational Limits
  12. 12If the locus of the mid-point of the line segment from the point 3 , 2 to a point on the circle, x 2 + y 2 = 1 is a circle of radius r , the26 Feb, 2021 (E)Locus
  13. 13Let A 1 , 4 and B 1 , - 5 be two points. Let P be a point on the circle x - 1 2 + y - 1 2 = 1 , such that P A 2 + P B 2 have maximum value, 26 Feb, 2021 (E)Locus
  14. 14Let slope of the tangent line to a curve at any point P x , y be given by x y 2 + y x . If the curve intersects the line x + 2 y = 4 at x = 26 Feb, 2021 (E)Linear Differential Equation
  15. 15Let f x = sin - 1 x and g x = x 2 - x - 2 2 x 2 - x - 6 . If g 2 = lim x 2 g x , then the domain of the function f o g is26 Feb, 2021 (E)Domain
  16. 16If the mirror image of the point 1 , 3 , 5 with respect to the plane 4 x - 5 y + 2 z = 8 is , , , then 5 + + equals :26 Feb, 2021 (E)Plane in Space
  17. 17If the arithmetic mean and the geometric mean of the p th and q th terms of the sequence - 16 , 8 , - 4 , 2 , satisfy the equation 4 x 2 - 926 Feb, 2021 (E)Means
  18. 18The total number of 4 -digit numbers whose greatest common divisor with 18 is 3 is _____.26 Feb, 2021 (E)Selection of one or more item
  19. 19Let z be those complex numbers which satisfy z + 5 4 and z 1 + i + z 1 - i - 10 , i = - 1 . If the maximum value of | z + 1 | 2 is + 2 , the26 Feb, 2021 (E)Geometry of Complex Number
  20. 20Let X 1 , X 2 , , X 18 be eighteen observations such that i = 1 18 X i - = 36 and i = 1 18 X i - 2 = 90 , where and are distinct real number26 Feb, 2021 (E)Measures of Dispersion
  21. 21Let the normals at all the points on a given curve pass through a fixed point a , b . If the curve passes through 3 , - 3 and 4 , - 2 2 , gi26 Feb, 2021 (E)Tangent Normal
  22. 22Let and be two real numbers such that + = 1 and = - 1 . Let p n = n + n , p n - 1 = 11 and p n + 1 = 29 for some integer n 1 . Then, the val26 Feb, 2021 (E)Relation between Roots and Coefficients
  23. 23If the matrix A = 1 0 0 0 2 0 3 0 - 1 satisfies the equation A 20 + A 19 + A = 1 0 0 0 4 0 0 0 1 for some real numbers and , then - is equal26 Feb, 2021 (E)Product of Matrices
  24. 24Let a be an integer such that all the real roots of the polynomial 2 x 5 + 5 x 4 + 10 x 3 + 10 x 2 + 10 x + 10 lie in the interval a , a + 126 Feb, 2021 (E)Monotonicity
  25. 25If I m , n = 0 1 x m - 1 1 - x n - 1 d x , for m , n 1 , and 0 1 x m - 1 + x n - 1 1 + x m + n d x = I m , n , R , then equals ________.26 Feb, 2021 (E)Definite Integration by Substitution
  26. 26Let f x = 0 x e t f t d t + e x be a differentiable function for all x R . Then f x equals :26 Feb, 2021 (E)Leibnitz Rule of Differentiation
  27. 27Let L be a common tangent line to the curves 4 x 2 + 9 y 2 = 36 and 2 x 2 + 2 y 2 = 31 . Then the square of the slope of the line L is _____26 Feb, 2021 (E)Common Tangent
  28. 28A natural number has prime factorization given by n = 2 x 3 y 5 z , where y and z are such that y + z = 5 and y - 1 + z - 1 = 5 6 , y z . Th26 Feb, 2021 (E)Selection of one or more item
  29. 29A seven digit number is formed using digits 3 , 3 , 4 , 4 , 4 , 5 , 5 . The probability, that number so formed is divisible by 2 , is26 Feb, 2021 (E)Classical Definition of Probability
  30. 30If 0 a , b 1 , and tan - 1 a + tan - 1 b = 4 , then the value of a + b - a 2 + b 2 2 + a 3 + b 3 3 - a 4 + b 4 4 + is :26 Feb, 2021 (E)Summation of Series

Physics

  1. 1The trajectory of a projectile in a vertical plane is y = x - x 2 , where and are constants and x y are respectively the horizontal and vert26 Feb, 2021 (E)Projectile motion
  2. 2The internal energy U , pressure P and volume V of an ideal gas are related as U = 3 P V + 4 . The gas is26 Feb, 2021 (E)First Law of Thermodynamics
  3. 3Given below are two statements: Statement I : A second s pendulum has a time period of 1 second. Statement II : It takes precisely one secon26 Feb, 2021 (E)Applications of SHM
  4. 4Draw the output signal Y in the given combination of gates.26 Feb, 2021 (E)Logic gates
  5. 5Find the peak current and resonant frequency of the following circuit (as shown in figure).26 Feb, 2021 (E)Alternating Current, Voltage and Power
  6. 6A cord is wound round the circumference of wheel of radius r , The axis of the wheel is horizontal and the moment of inertia about it is I .26 Feb, 2021 (E)Moment of inertia of rigid bodies
  7. 7Given below are two statements : one is labeled as Assertion A and the other is labeled as Reason R . Assertion A : For a simple microscope,26 Feb, 2021 (E)Optical Instruments
  8. 8An inclined plane making an angle of 30 with the horizontal is placed in a uniform horizontal electric field 200 N C as shown in the figure.26 Feb, 2021 (E)Frictional force
  9. 9The length of metallic wire is l 1 when tension in it is T 1 . It is l 2 when the tension is T 2 . The original length of the wire will be :26 Feb, 2021 (E)Young's Modulus and Breaking Stres
  10. 10A tuning fork A of unknown frequency produces 5 beats s - 1 with a fork of known frequency 340 Hz . When fork A is filed, the beat frequency26 Feb, 2021 (E)Beats
  11. 11Given below are two statements Statement I : An electric dipole is placed at the centre of a hollow sphere. The flux of electric field throu26 Feb, 2021 (E)Electric Field and Electric Field Lines
  12. 12The recoil speed of a hydrogen atom after it emits a photon in going from n = 5 state to n = 5 state will be26 Feb, 2021 (E)Atomic Structure
  13. 13A particle executes S.H.M., the graph of velocity as a function of displacement is :26 Feb, 2021 (E)Simple Harmonic Motion
  14. 14Two masses A and B , each of mass M are fixed together by a massless spring, A force acts on the mass B as shown in figure. If the mass A st26 Feb, 2021 (E)Newton's laws of motion
  15. 15A scooter accelerates from rest for time t 1 at constant rate a 1 and then retards at constant rate a 2 for time t 2 and comes to rest. The 26 Feb, 2021 (E)Rest and Motion
  16. 16The incident ray, reflected ray and the outward drawn normal are denoted by the unitvectors a , b and c respectively. Then choose the correc26 Feb, 2021 (E)Reflection of Light from Plane Mirror
  17. 17A wire of 1 has a length of 1 m . It is stretched till its length increases by 25 % . The percentage change in resistance to the nearest int26 Feb, 2021 (E)Errors of Measurement
  18. 18A radioactive sample is undergoing decay, At any time t 1 , its activity is A and another time t 2 , the activity is A 5 . What is the avera26 Feb, 2021 (E)Radioactivity
  19. 19An aeroplane, with its wings spread 10 m , is flying at a speed of 180 km h - 1 in a horizontal direction. The total intensity of earth s fi26 Feb, 2021 (E)Earths magnetic field
  20. 20If C and V represent capacity and voltage respectively then what are the dimensions of where C / V = ?26 Feb, 2021 (E)Dimensions
  21. 211 mole of rigid diatomic gas performs a work of Q 5 when heat Q is supplied to it. The molar heat capacity of the gas during this transforma26 Feb, 2021 (E)First Law of Thermodynamics
  22. 22In the reported figure of earth, the value of acceleration due to gravity is same at point A and C but it is smaller than that of its value 26 Feb, 2021 (E)Acceleration Due to Gravity
  23. 23A particle executes S.H.M. with amplitude A and time period T . The displacement of the particle when its speed is half of maximum speed is 26 Feb, 2021 (E)Simple Harmonic Motion
  24. 24The zener diode has a V z = 30 V . The current passing through the diode for the following circuit is___ mA .26 Feb, 2021 (E)Diodes
  25. 25A point source of light S , placed at a distance 60 cm infront of the centre of a plane mirror of width 50 cm , hangs vertically on a wall. 26 Feb, 2021 (E)Reflection of Light from Plane Mirror
  26. 26The volume V of a given mass of monoatomic gas changes with temperature T according to the relation V = K T 2 3 . The workdone when temperat26 Feb, 2021 (E)First Law of Thermodynamics
  27. 27Two stream of photons, possessing energies equal to twice and ten times the work function of metal are incident on the metal surface success26 Feb, 2021 (E)Photoelectric Effect
  28. 28If the highest frequency modulating a carrier is 5 kHz , then the number of A M broadcast stations accommodated in a 90 kHz bandwidth are26 Feb, 2021 (E)Communication System
  29. 2927 similar drops of mercury are maintained at 10 V each. All these spherical drops combine into a single big drop. The potential energy of t26 Feb, 2021 (E)Electric Potential and Potential Energy
  30. 30Time period of a simple pendulum is T . The time taken to complete 5 8 oscillations starting from mean position is 12 T . The value of is _ 26 Feb, 2021 (E)Applications of SHM

Frequently Asked Questions

1.How many questions are in the JEE Main 2021 26th February Evening 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 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 26th February 2021 evening shift.

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

The JEE Main 2021 26th February Morning Shift paper is listed separately - you can switch to it from the "JEE Main Paper Wise PYQs" panel, under JEE Main 26th February 2021.

5.What is the structure of the JEE Main 2021 26th February Evening Shift paper?

The JEE Main 2021 26th February Evening 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 26th February Evening Shift paper?

Each question on MARKS carries a difficulty rating. Of the 90 rated questions in this paper, 32 (36%) are easy, 45 (50%) are medium and 13 (14%) are hard. Subject wise:

  • Chemistry: 19 easy, 9 medium, 2 hard
  • Mathematics: 4 easy, 19 medium, 7 hard
  • Physics: 9 easy, 17 medium, 4 hard
7.Which chapters had the most questions in the JEE Main 2021 26th February Evening Shift paper?

The chapters with the most questions in each subject were:

  • Chemistry: Aldehydes and Ketones (4), Amines (2), and Biomolecules (2).
  • Mathematics: Application of Derivatives (3), Definite Integration (3), and Sequences and Series (3).
  • Physics: Oscillations (4), Ray Optics (3), and Thermodynamics (3).
8.Are there any out-of-syllabus questions in the JEE Main 2021 26th February Evening 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 26th February 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 2021 26th February Evening 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 26th February 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.