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JEE Main 2018 16th April Online

Browse the complete Chemistry, Mathematics, and Physics question set from the JEE Main 2018 16th April Online 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 90 questions in total - 27 easy (30%), 46 moderate (51%) and 17 tough (19%). That's a fairly typical mix for this exam. By subject: Physics 37% easy, 37% moderate, 27% tough; Chemistry 30% easy, 57% moderate, 13% tough; Mathematics 23% easy, 60% moderate, 17% tough.

Chemistry questions were spread across 22 chapters, with Chemical Bonding and Molecular Structure (3), Coordination Compounds (3), and Chemical Equilibrium (2) carrying the most weight. Mathematics questions were spread across 26 chapters, with Probability (2), Quadratic Equation (2), and Sequences and Series (2) carrying the most weight. Physics questions were spread across 23 chapters, with Current Electricity (3), Gravitation (2), and Mathematics in Physics (2) carrying the most weight.

Chemistry

  1. 1For standardizing NaOH solution, which of the following is used as a primary standard?16 Apr, 2018 (Online)Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application
  2. 2Products A and B formed in the following reactions are respectively:16 Apr, 2018 (Online)Preparation and Properties of Amines
  3. 3When X O 2 is fused with an alkali metal hydroxide in presence of an oxidizing agent such as KNO 3 ; a dark green product is formed which di16 Apr, 2018 (Online)Compounds of Transition Metals
  4. 4The major product B formed in the following reaction sequence is:16 Apr, 2018 (Online)Method of preparation for both aldehydes and ketones
  5. 5In a complexometric titration of metal ion with ligand M ( M e t a l i o n ) + L ( L i g a n d ) C ( C o m p l e x ) end point is estimated 16 Apr, 2018 (Online)Werner's theory and Valence Bond Theory
  6. 6The major product of the following reaction is:16 Apr, 2018 (Online)Preparation and Properties of Monohalides
  7. 7Among the following, the incorrect statement is16 Apr, 2018 (Online)Preparation and Reactions of Glucose
  8. 8In the extraction of copper from its sulphide ore, metal is finally obtained by the oxidation of cuprous sulphide with:16 Apr, 2018 (Online)Reduction to Crude Metal
  9. 9Among the oxides of nitrogen: N 2 O 3 , N 2 O 4 a n d N 2 O 5 ; the molecule ( s ) having nitrogen - nitrogen bond is/are:16 Apr, 2018 (Online)Nitrogen and Its Compounds
  10. 10Which of the following conversions involves change in both shape and hybridisation?16 Apr, 2018 (Online)Hybridisation and VSEPR Theory
  11. 11The most polar compound among the following is:16 Apr, 2018 (Online)Polarization
  12. 12In Wilkinson's catalyst, the hybridization of central metal ion and its shape are respectively:16 Apr, 2018 (Online)Werner's theory and Valence Bond Theory
  13. 13At 320 K, a gas A 2 is 20 % dissociated to A ( g ) . The standard Gibbs free energy change at 320 K a n d 1 a t m i n J m o l 1 is approxima16 Apr, 2018 (Online)Third law of thermodynamics
  14. 14Which of the following complexes will show geometrical isomerism?16 Apr, 2018 (Online)Isomerism of coordination compounds
  15. 15Which of the following statements is false?16 Apr, 2018 (Online)Hydrogen spectrum
  16. 16When 9.65 ampere current was passed for 1.0 hour into nitrobenzene in acidic medium, the amount of p-aminophenol produced is:16 Apr, 2018 (Online)Types of half cells
  17. 17For which of the following processes, S is negative?16 Apr, 2018 (Online)Entropy and Second law of thermodynamics
  18. 18An unknown chlorohydrocarbon has 3.55 % of chlorine. If each molecule of the hydrocarbon has one chlorine atom only; chlorine atoms present 16 Apr, 2018 (Online)Quantitative measures in chemical equations
  19. 19The incorrect statement is:16 Apr, 2018 (Online)Properties of D-block elements
  20. 20The mass of a non-volatile, non-electrolyte solute (molar mass = 50 g mol - 1 ) needed to be dissolved in 114 g octane to reduce its vapour 16 Apr, 2018 (Online)Vapour pressure and raoult's law
  21. 21The incorrect geometry is represented by:16 Apr, 2018 (Online)Hybridisation and VSEPR Theory
  22. 22Assuming ideal gas behavior, the ratio of density of ammonia to that of hydrogen chloride at same temperature and pressure is: (Atomic weigh16 Apr, 2018 (Online)Gas laws and Ideal Gas Equation
  23. 23The correct match between items of List-I and List-II is: List I List - II (A) Phenelzine (P) Pyrimidine (B) Chloroxylenol (Q) Furan (C) Ura16 Apr, 2018 (Online)Drugs and It's Classification
  24. 24The gas phase reaction 2 NO 2 g N 2 O 4 g is an exothermic reaction. The decomposition of N 2 O 4 , in equilibrium mixture of NO 2 g and N 216 Apr, 2018 (Online)Le chatelier's principle
  25. 25Which one of the following is not a property of physical adsorption?16 Apr, 2018 (Online)Adsorption
  26. 26A group 13 element ' X ' reacts with chlorine gas to produce a compound XCl 3 . XCl 3 is electron deficient and easily reacts with NH 3 to f16 Apr, 2018 (Online)Boron and Its Compounds
  27. 27The major product of the following reaction is:16 Apr, 2018 (Online)Preparation and Properties of Monohalides
  28. 28If 50 % of a reaction occurs in 100 second and 75 % of the reaction occurs in 200 second, the order of this reaction is:16 Apr, 2018 (Online)Integrated rate laws
  29. 29The major product of the following reaction is:16 Apr, 2018 (Online)Preparation and Reactions of Conjugate Dienes
  30. 30Which of the following compounds will most readily be dehydrated to give alkene under acidic condition?16 Apr, 2018 (Online)Reactions of Alcohols

Mathematics

  1. 1If x = 2 cosec - 1 t and y = 2 sec - 1 t , t 1 , then d y d x is equal to16 Apr, 2018 (Online)Differentiation of Inverse Trigonometric Functions
  2. 2Let N denote the set of all natural numbers. Define two binary relations on N as R 1 = x , y N N : 2 x + y = 10 and R 2 = x , y N N : x + 2 16 Apr, 2018 (Online)Questions on Symmetric Transitive and Reflexive Properties
  3. 3The coefficient of x 2 in the expansion of the product 2 - x 2 1 + 2 x + 3 x 2 6 + 1 - 4 x 2 6 is16 Apr, 2018 (Online)Terms of Binomial Expansion
  4. 4If the area of the region bounded by the curves, y = x 2 , y = 1 x and the lines y = 0 and x = t t 1 is 1 sq . unit , then t is equal to16 Apr, 2018 (Online)Area bounded by two curves
  5. 5If the length of the latus rectum of an ellipse is 4 units and the distance between a focus and its nearest vertex on the major axis is 3 2 16 Apr, 2018 (Online)Equation of Ellipse
  6. 6The number of numbers between 2 , 000 and 5 , 000 that can be formed with the digits 0 , 1 , 2 , 3 , 4 (repetition of digits is not allowed)16 Apr, 2018 (Online)Combination
  7. 7Two different families A and B are blessed with equal number of children. There are 3 tickets to be distributed amongst the children of thes16 Apr, 2018 (Online)Baye's Theorem
  8. 8lim x 0 ( 27 + x ) 1 3 - 3 9 - ( 27 + x ) 2 3 equals16 Apr, 2018 (Online)Exponential and logarithmic limits
  9. 9Let p , q and r be real numbers p q , r 0 , such that the roots of the equation 1 x + p + 1 x + q = 1 r are equal in magnitude but opposite 16 Apr, 2018 (Online)Relation between Roots and Coefficients
  10. 10Let 1 x 1 , 1 x 2 , , 1 x n ( x i 0 for i = 1 , 2 , . , n ) be in A.P. such that x 1 = 4 and x 21 = 20 . If n is the least positive integer 16 Apr, 2018 (Online)Summation of Series
  11. 11The differential equation representing the family of ellipses having foci either on the x -axis or on the y -axis, center at the origin and 16 Apr, 2018 (Online)Formation of Differential Equation
  12. 12The sum of the intercepts on the coordinate axes of the plane passing through the point 2 , 2 , 2 and containing the line joining the points16 Apr, 2018 (Online)Line in Space
  13. 13Let A = 1 0 0 1 1 0 1 1 1 and B = A 20 . Then the sum of the elements of the first column of B is16 Apr, 2018 (Online)Product of Matrices
  14. 14Let A , B and C be three events, which are pair-wise independent and E denotes the complement of an event E . If P A B C = 0 and P C 0 , the16 Apr, 2018 (Online)Classical Definition of Probability
  15. 15If p ~ p ~ q is false, then the truth values of p and q are, respectively16 Apr, 2018 (Online)Mathematical Reasoning
  16. 16If the function f defined as f x = 1 x - k - 1 e 2 x - 1 , x 0 is continuous at x = 0 , then ordered pair k , f 0 is equal to16 Apr, 2018 (Online)Continuity
  17. 17If the angle between the lines x 2 = y 2 = z 1 and 5 - x - 2 = 7 y - 14 P = z - 3 4 is cos - 1 2 3 , then P is equal to16 Apr, 2018 (Online)Line in Space
  18. 18The locus of the point of intersection of the lines 2 x - y + 4 2 k = 0 and 2 k x + k y - 4 2 = 0 ( k is any non-zero real parameter) is16 Apr, 2018 (Online)Locus
  19. 19A man on the top of a vertical tower observes a car moving at a uniform speed towards the tower on a horizontal road. If it takes 18 min for16 Apr, 2018 (Online)Heights and Distances
  20. 20If an angle A of a A B C satisfies 5 cos A + 3 = 0 , then the roots of the quadratic equation 9 x 2 + 27 x + 20 = 0 are16 Apr, 2018 (Online)Relation between Roots and Coefficients
  21. 21If a circle C , whose radius is 3 , touches externally the circle x 2 + y 2 + 2 x - 4 y - 4 = 0 at the point 2 , 2 , then the length of the 16 Apr, 2018 (Online)General Equation of 2nd degree curve
  22. 22Let P be a point on the parabola x 2 = 4 y . If the distance of P from the center of the circle x 2 + y 2 + 6 x + 8 = 0 is minimum, then the16 Apr, 2018 (Online)Tangent to Parabola
  23. 23If f x = 0 x t sin x - sin t d t , then16 Apr, 2018 (Online)Leibnitz Rule of Differentiation
  24. 24The number of values of k for which the system of linear equations k + 2 x + 10 y = k k x + k + 3 y = k - 1 has no solution is16 Apr, 2018 (Online)System of Linear Equations
  25. 25If tan x 1 + tan x + tan 2 x d x = x - K A tan - 1 K tan x + 1 A + C , ( C is a constant of integration), then the ordered pair K , A is equ16 Apr, 2018 (Online)Miscellaneous Forms
  26. 26The least positive integer n for which 1 + i 3 1 - i 3 n = 1 is16 Apr, 2018 (Online)Algebra of complex numbers
  27. 27The sum of the first 20 terms of the series 1 + 3 2 + 7 4 + 15 8 + 31 16 + is16 Apr, 2018 (Online)Summation of Series
  28. 28Let a = i ^ + j ^ + k ^ , c = j ^ - k ^ and a vector b be such that a b = c and a b = 3 . Then b equals16 Apr, 2018 (Online)Product of 2 vectors
  29. 29The mean and the standard deviation S . D . of five observations are 9 and 0 , respectively. If one of the observation is increased such tha16 Apr, 2018 (Online)Mean Square Deviation
  30. 30Let M and m be respectively the absolute maximum and the absolute minimum values of the function, f x = 2 x 3 - 9 x 2 + 12 x + 5 in the inte16 Apr, 2018 (Online)Maxima Minima

Physics

  1. 1The relative uncertainty in the period of a satellite orbiting around the earth is 10 - 2 . If the relative uncertainty in the radius of the16 Apr, 2018 (Online)Kepler laws
  2. 2At some instant, a radioactive sample S 1 having an activity 5 μ Ci has twice the number of nuclei as another sample S 2 which has an activi16 Apr, 2018 (Online)Radioactivity
  3. 3Two moles of helium are mixed with n moles of hydrogen. If C p C v = 3 2 for the mixture then the value of n is,16 Apr, 2018 (Online)Degree of Freedom and Specific Heat
  4. 4Unpolarized light of intensity I is incident on a system of two polarizers, A followed by B . The intensity of emergent light is I 2 . If a 16 Apr, 2018 (Online)Polarization of Light
  5. 5The de-Broglie wavelength B associated with the electron orbiting in the second excited state of hydrogen atom is related to that in the gro16 Apr, 2018 (Online)Matter Waves
  6. 6In the given circuit the current through zener diode is:16 Apr, 2018 (Online)Diodes
  7. 7The end correction of a resonance column is 1 cm . If the shortest length resonating with the tuning fork is 10 cm , the next resonating len16 Apr, 2018 (Online)Organ Pipe (Vibration of Air Column)
  8. 8Two sitar strings, A and B playing the note D h a are slightly out of tune and produce beats of frequency 5 Hz . The tension of the string B16 Apr, 2018 (Online)Beats
  9. 9A power transmission line feeds input power at 2300 V to a step-down transformer with its primary windings having 4000 turns giving the outp16 Apr, 2018 (Online)Transformers
  10. 10A body of mass m starts moving from rest along x - axis so that its velocity varies as v = a s where a is a constant and s is the distance c16 Apr, 2018 (Online)Energy
  11. 11Suppose that the angular velocity of rotation of the Earth is increased. Then, as a consequence,16 Apr, 2018 (Online)Acceleration Due to Gravity
  12. 12Both the nucleus and the atom of some element are in their respective first excited states. They get de-excited by emitting photons of wavel16 Apr, 2018 (Online)Atomic Spectrum
  13. 13A plane electromagnetic wave of wavelength has an intensity I . It is propagating along the positive Y - direction. The allowed expressions 16 Apr, 2018 (Online)Electromagnetic Waves and Maxwell's equations
  14. 14A charge q is spread uniformly over an insulated loop of radius r . If it is rotated with an angular velocity with respect to normal axis th16 Apr, 2018 (Online)Magnetic Moment
  15. 15A heating element has a resistance of 100 Ω at room temperature. When it is connected to a supply of 220 V , a steady current of 2 A passes 16 Apr, 2018 (Online)Electric Power and Heating Effect of Current
  16. 16A coil of cross-sectional area A having n turns is placed in a uniform magnetic field B . When it is rotated with an angular velocity , the 16 Apr, 2018 (Online)Induced Electric Field
  17. 17A ray of light is incident at an angle of 60 on one face of a prism of angle 30 . The emergent ray of light makes an angle of 30 with incide16 Apr, 2018 (Online)Prism and Dispersion of Light
  18. 18A galvanometer with its coil resistance 25 requires a current of 1 mA for its full deflection. In order to construct an ammeter to read up t16 Apr, 2018 (Online)Electric Instruments
  19. 19An oscillator of mass M is at rest in its equilibrium position in a potential, V = 1 2 k x X 2 . A particle of mass m comes from the right w16 Apr, 2018 (Online)Simple Harmonic Motion
  20. 20One mole of an ideal monatomic gas is taken along the path A B C A as shown in the P V diagram. The maximum temperature attained by the gas 16 Apr, 2018 (Online)Thermodynamic Processes
  21. 21In a circuit for finding the resistance of a galvanometer by half deflection method, a 6 V battery and a high resistance of 11 k are used. T16 Apr, 2018 (Online)Electric Instruments
  22. 22In the following circuit the switch S is closed at t = 0 . The charge on the capacitor C 1 as a function of time will be given by C e q = C 16 Apr, 2018 (Online)Charging and Discarging of capacitors
  23. 23Let A = i ^ + j ^ a n d B = ( 2 i ^ - j ^ ) . The magnitude of a coplanar vector C such that A . C = B . C = A . B is given by:16 Apr, 2018 (Online)Multiplication of Vectors
  24. 24A particle executes simple harmonic motion and it is located at x = a , b and c at time t 0 , 2 t 0 a n d 3 t 0 respectively. The frequency 16 Apr, 2018 (Online)Time Period and Frequency
  25. 25A thin circular disk is in the x y plane as shown in the figure. The ratio of its moment of inertia about z and z axes will be:16 Apr, 2018 (Online)Moment of inertia of rigid bodies
  26. 26Two identical conducting spheres A and B carry an equal charges. They are separated by a distance much larger than their diameters, and the 16 Apr, 2018 (Online)Electric Charge and Coulomb's law
  27. 27Two particles of the same mass m are moving in circular orbits because of force, given by F r = - 16 r - r 3 . The first particle is at a di16 Apr, 2018 (Online)Energy
  28. 28The percentage errors in quantities P , Q , R and S are 0 . 5 % , 1 % , 3 % and 1 . 5 % respectively in the measurement of a physical quanti16 Apr, 2018 (Online)Errors of Measurement
  29. 29A carrier wave of peak voltage 14 V is used for transmitting a message signal. The peak voltage of the modulating signal given to achieve a 16 Apr, 2018 (Online)Modulation
  30. 30A small soap bubble of radius 4cm is trapped inside another bubble of radius 6cm without any contact. Let P 2 be the pressure inside the inn16 Apr, 2018 (Online)Surface tension

Frequently Asked Questions

1.How many questions are in the JEE Main 2018 16th April Online 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 paper.

3.How is the JEE Main 2018 16th April Online paper structured?

The JEE Main 2018 16th April Online paper on MARKS has 90 questions, organised by subject:

  • Chemistry: 30 questions - 30 single-correct.
  • Mathematics: 30 questions - 30 single-correct.
  • Physics: 30 questions - 30 single-correct.
4.How difficult is the JEE Main 2018 16th April Online paper?

Each question on MARKS carries a difficulty rating. Of the 90 rated questions in this paper, 27 (30%) are easy, 46 (51%) are medium and 17 (19%) are hard. Subject wise:

  • Chemistry: 9 easy, 17 medium, 4 hard
  • Mathematics: 7 easy, 18 medium, 5 hard
  • Physics: 11 easy, 11 medium, 8 hard
5.Which chapters were asked the most in the JEE Main 2018 16th April Online paper?

The chapters with the most questions in each subject were:

  • Chemistry: Chemical Bonding and Molecular Structure (3), Coordination Compounds (3), and Chemical Equilibrium (2).
  • Mathematics: Probability (2), Quadratic Equation (2), and Sequences and Series (2).
  • Physics: Current Electricity (3), Gravitation (2), and Mathematics in Physics (2).
6.Are there any out-of-syllabus questions in the JEE Main 2018 16th April Online paper?

Yes. 12 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.

7.Where can I find the solutions for the JEE Main 2018 16th April Online 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 Main 2018 16th April Online 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.

9.Will the JEE Main 2018 16th April Online 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.