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JEE Main 2018 8th April

Browse the complete Chemistry, Mathematics, and Physics question set from the JEE Main 2018 8th April 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 - 25 easy (28%), 50 moderate (56%) and 15 tough (17%). That's a fairly typical mix for this exam. By subject: Physics 33% easy, 43% moderate, 23% tough; Chemistry 27% easy, 63% moderate, 10% tough; Mathematics 23% easy, 60% moderate, 17% tough.

Chemistry questions were spread across 21 chapters, with Alcohols Phenols and Ethers (3), Chemical Bonding and Molecular Structure (3), and Ionic Equilibrium (3) carrying the most weight. Mathematics questions were spread across 25 chapters, with Application of Derivatives (2), Determinants (2), and Parabola (2) carrying the most weight. Physics questions were spread across 21 chapters, with Center of Mass Momentum and Collision (3), Current Electricity (3), and Alternating Current (2) carrying the most weight.

Chemistry

  1. 1For 1 molal aqueous solution of the following compounds, which one will show the highest freezing point?08 Apr, 2018Colligative Properties and Abnormal Molecular Masses
  2. 2Hydrogen peroxide oxidises Fe CN 6 4 - to Fe CN 6 3 - in acidic medium, but reduces Fe CN 6 3 - to Fe CN 6 4 - in alkaline medium. The other08 Apr, 2018Chemical properties of hydrogen peroxide
  3. 3Which of the following compounds will be suitable for Kjeldahl's method for nitrogen estimation?08 Apr, 2018Quantitative analysis of organic compounds
  4. 4Glucose on prolonged heating with HI gives08 Apr, 2018Preparation and Reactions of Glucose
  5. 5An alkali is titrated against acid with methyl orange as an indicator, which of the following is a correct combination?08 Apr, 2018Redox titration
  6. 6The predominant form of histamine present in human blood is pK a , Histidine = 6008 Apr, 2018Nucleic Acids
  7. 7The increasing order of basicity of the following compounds is :08 Apr, 2018Preparation and Properties of Amines
  8. 8Which of the following lines correctly show the temperature dependence of equilibrium constant K , for an exothermic reaction?08 Apr, 2018Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application
  9. 9How long (approximate) should water be electrolysed by passing through 100 amperes current so that the oxygen released can completely burn 208 Apr, 2018Cells and Electrode Potential, Nernst Equation
  10. 10Consider the following reaction and statements: Co NH 3 4 Br 2 + + Br - Co NH 3 3 Br 3 + NH 3 (i) Two isomers are produced if the reactant c08 Apr, 2018Isomerism of coordination compounds
  11. 11Phenol reacts with methyl chloroformate in the presence of NaOH to form product A . A reacts with Br 2 to form product B . A and B are respe08 Apr, 2018Reactions of Phenol
  12. 12An aqueous solution contains an unknown concentration of Ba 2 + . When 50 mL of a 1 M solution of Na 2 SO 4 is added, BaSO 4 just begins to 08 Apr, 2018Solubility
  13. 13At 518 o C , the rate of decomposition of a sample of gaseous acetaldehyde, initially at a pressure of 363 Torr was 1 .00 Torr s - 1 when 5 08 Apr, 2018Methods to determine order of reaction
  14. 14The combustion of benzene l gives CO 2 g and H 2 O l . Given that heat of combustion of benzene at constant volume is - 3263 .9 kJ mol - 1 a08 Apr, 2018Laws of Thermochemistry and Enthalpy Change
  15. 15The ratio of mass percent of C and H of an organic compound C X H Y O Z is 6 : 1 . If one molecule of the above compound C X H Y O Z contain08 Apr, 2018Quantitative measures in chemical equations
  16. 16The trans-alkenes are formed by the reduction of alkynes with08 Apr, 2018Properties and Preparation of Alkenes
  17. 17Which of the following are Lewis acids?08 Apr, 2018Theories of Acids and Bases
  18. 18When metal M is treated with NaOH , a white gelatinous precipitate X is obtained, which is soluble in excess of NaOH . Compound X when heate08 Apr, 2018Aluminium and Its Compounds
  19. 19According to molecular orbital theory, which of the following molecule will not be available?08 Apr, 2018Molecular Orbital Theory
  20. 20The major product formed in the following reaction is:08 Apr, 2018Reactions of Ethers
  21. 21Phenol on treatment with C O 2 in the presence of NaOH followed by acidification produces compound X as the major product. X on treatment wi08 Apr, 2018Reactions of Phenol
  22. 22Which of the following compounds contain(s) no covalent bond(s)? KCl , PH 3 , O 2 , B 2 H 6 , H 2 SO 408 Apr, 2018Ionic bond
  23. 23Which type of 'defect' has the presence of cations in the interstitial sites?08 Apr, 2018Stoichiometric defects
  24. 24The major product of the following reaction is:08 Apr, 2018Preparation and Properties of Monohalides
  25. 25The compound that does not produce nitrogen gas by thermal decomposition is:08 Apr, 2018Nitrogen and Its Compounds
  26. 26An aqueous solution contains 0 . 10 M H 2 S and 0 . 20 M HCl . If the equilibrium constant for the formation of HS - from H 2 S is 1.0 10 - 08 Apr, 2018Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application
  27. 27The oxidation states of Cr in Cr H 2 O 6 Cl 3 , Cr C 6 H 6 2 and K 2 Cr CN 2 O 2 O 2 NH 3 , respectively, are:08 Apr, 2018Terminology of coordination compounds
  28. 28The recommended concentration of fluoride ion in drinking water is up to 1 ppm as fluoride ion is required to make teeth enamel harder by co08 Apr, 2018Water Pollution
  29. 29Which of the following salts is the most basic in aqueous solution?08 Apr, 2018Salt Hydrolysis
  30. 30Total number of lone pair of electrons in I 3 - ion is:08 Apr, 2018Covalent and Co-ordinate Bonding

Mathematics

  1. 1If the curves y 2 = 6 x , 9 x 2 + b y 2 = 16 intersect each other at right angles, then the value of b is:08 Apr, 2018Tangent Normal
  2. 2Let u be a vector coplanar with the vectors a = 2 i ^ + 3 j ^ - k ^ and b = j ^ + k ^ . If u is perpendicular to a and u b = 24 , then u 2 i08 Apr, 2018Product of 2 vectors
  3. 3For each t R , let t be the greatest integer less than or equal to t . Then lim x 0 + x 1 x + 2 x + + 15 x08 Apr, 2018Existance of Limit
  4. 4If L 1 is the line of intersection of the planes 2 x - 2 y + 3 z - 2 = 0 , x - y + z + 1 = 0 and L 2 is the line of intersection of the plan08 Apr, 2018Plane in Space
  5. 5The values of - 2 2 sin 2 x 1 + 2 x d x is08 Apr, 2018Properties of Definite Integration
  6. 6Let g x = cos x 2 , f x = x , and , be the roots of the quadratic equation 18 x 2 - 9 x + 2 = 0 . Then the area (in sq. units) bounded by th08 Apr, 2018Area bounded by Miscellaneous Curves
  7. 7If sum of all the solutions of the equation 8 cos x cos 6 + x cos 6 - x - 1 2 = 1 in 0 , is k , then k is equal to:08 Apr, 2018Solving Trigonometric Equation
  8. 8Let f x = x 2 + 1 x 2 and g x = x - 1 x , x R - - 1 , 0 , 1 . If h x = f x g x , then the local minimum value of h x is:08 Apr, 2018Maxima Minima
  9. 9The integral sin 2 x cos 2 x sin 5 x + cos 3 x sin 2 x + sin 3 x cos 2 x + cos 5 x 2 d x , is equal to (where C is the constant of integrati08 Apr, 2018Integration by Substitution
  10. 10A bag contains 4 red and 6 black balls. A ball is drawn at random from the bag, its color is observed and this ball along with two additiona08 Apr, 2018Classical Definition of Probability
  11. 11Let the orthocentre and centroid of a triangle be A - 3 , 5 and B 3 , 3 respectively. If C is the circumcentre of this triangle, then the ra08 Apr, 2018Sine Rule and its application
  12. 12If the tangent at 1 , 7 to the curve x 2 = y - 6 touch the circle x 2 + y 2 + 16 x + 12 y + c = 0 then the value of c is:08 Apr, 2018Tangent to Parabola
  13. 13If α , β ∈ C are the distinct roots of the equation x 2 - x + 1 = 0 , then α 101 + β 107 is equal to08 Apr, 2018Cube Root of Unity
  14. 14P Q R is a triangular park with P Q = P R = 200 m . A T.V. tower stands at the mid-point of Q R . If the angles of elevation of the top of t08 Apr, 2018Heights and Distances
  15. 15If i = 1 9 x i 5 = 9 and i = 1 9 x i 5 2 = 45 , then the standard deviation of the 9 items x 1 , x 2 , . , x 9 is08 Apr, 2018Mean Square Deviation
  16. 16The sum of the co-efficient of all odd degree terms in the expansion of x + x 3 - 1 5 + x - x 3 - 1 5 , x 1 is08 Apr, 2018Series involving Product of Coefficients
  17. 17Tangents are drawn to the hyperbola 4 x 2 - y 2 = 36 at the points P and Q . If these tangents intersect at the point T 0 , 3 then the area 08 Apr, 2018Tangent to hyperbola
  18. 18From 6 different novels and 3 different dictionaries, 4 novels and 1 dictionary are to be selected and arranged in a row on a shelf so that 08 Apr, 2018Arrangement under Constraint
  19. 19If the system of linear equations x + k y + 3 z = 0 3 x + k y - 2 z = 0 2 x + 4 y - 3 z = 0 has a non-zero solution x , y , z , then x z y 208 Apr, 2018System of Linear Equations
  20. 20If x - 4 2 x 2 x 2 x x - 4 2 x 2 x 2 x x - 4 = A + B x x - A 2 , then the ordered pair ( A , B ) is equal to08 Apr, 2018Expansion of Determinants
  21. 21Two sets A and B are as under: A = a , b R R : a - 5 1 and b - 5 1 ; B = a , b R R : 4 a - 6 2 + 9 b - 5 2 36 . Then :08 Apr, 2018Equation of Ellipse
  22. 22Tangent and normal are drawn at P 16 , 16 on the parabola y 2 = 16 x , which intersect the axis of the parabola at A B , respectively. If C 08 Apr, 2018Tangent to Parabola
  23. 23Let S = t R : f x = x - e x - 1 sin x is not differentiable at t . Then, the set S is equal to:08 Apr, 2018Differentiability
  24. 24The Boolean expression ~ p q ~ p q is equivalent to08 Apr, 2018Mathematical Reasoning
  25. 25A straight line through a fixed point 2 , 3 intersects the coordinate axes at distinct points P and Q . If O is the origin and the rectangle08 Apr, 2018Locus
  26. 26Let A be the sum of the first 20 terms and B be the sum of the first 40 terms of the series 1 2 + 2 2 2 + 3 2 + 2 4 2 + 5 2 + 2 6 2 + If B -08 Apr, 2018Summation of Series
  27. 27Let y = y x be the solution of the differential equation sin x d y d x + y cos x = 4 x , x 0 , . If y 2 = 0 , then y 6 is equal to08 Apr, 2018Linear Differential Equation
  28. 28The length of the projection of the line segment joining the points ( 5 , - 1 , 4 ) and ( 4 , - 1 , 3 ) on the plane, x + y + z = 7 is08 Apr, 2018Plane in Space
  29. 29Let S = x R : x 0 2 x - 3 + x x - 6 + 6 = 0 . Then S :08 Apr, 2018Inequalities
  30. 30Let a 1 , a 2 , a 3 , , a 49 be in A . P . such that k = 0 1 2 a 4 k + 1 = 416 and a 9 + a 43 = 66 . If a 1 2 + a 2 2 + + a 17 2 = 140 m , t08 Apr, 2018Summation of Series

Physics

  1. 1Three concentric metal shells A , B and C of respective radii a , b and c ( a b c ) have surface charge densities + , - and + respectively. 08 Apr, 2018Electric Potential and Potential Energy
  2. 2Seven identical circular planar disks, each of mass M and radius R are welded symmetrically as shown. The moment of inertia of the arrangeme08 Apr, 2018Moment of inertia of rigid bodies
  3. 3From a uniform circular disc of radius R and mass 9 M, a small disc of radius R 3 is removed as shown in the figure. The moment of inertia o08 Apr, 2018Moment of inertia of rigid bodies
  4. 4The reading of the ammeter for a silicon diode in the given circuit is:08 Apr, 2018Diodes
  5. 5Unpolarized light of intensity I passes through an ideal polariser A . Another identical polariser B is placed behind A . The intensity of l08 Apr, 2018Polarization of Light
  6. 6For an RLC circuit driven with voltage of amplitude v m and frequency 0 = 1 L C the current exhibits resonance. The quality factor, Q is giv08 Apr, 2018Quality and Power Factor
  7. 7Two masses m 1 = 5 kg and m 2 = 10 kg , connected by an inextensible string over a frictionless pulley, are moving as shown in the figure. T08 Apr, 2018Frictional force
  8. 8In a collinear collision, a particle with an initial speed v 0 strikes a stationary particle of the same mass. If the final total kinetic en08 Apr, 2018momentum
  9. 9A particle is moving with a uniform speed in a circular orbit of radius R in a central force inversely proportional to the n t h power of R.08 Apr, 2018Newton's Law of Gravitation
  10. 10Two batteries with e.m.f. 12 V and 13 V are connected in parallel across a load resistor of 10 . The internal resistance of the two batterie08 Apr, 2018Electric Cell or Battery
  11. 11In an A.C. circuit, the instantaneous e.m.f. and current are given by, E = 100 sin 30 t , I = 20 sin 30 t - 4 . In one cycle of A.C. , the a08 Apr, 2018Quality and Power Factor
  12. 12An EM wave from air enters a medium. The electric fields are E 1 = E 01 x ^ cos 2 v z c - t in air and E 2 = E 02 x ^ cos k 2 z - c t in med08 Apr, 2018Electromagnetic Waves and Maxwell's equations
  13. 13A telephonic communication service is working at a carrier frequency of 10 GHz . Only 10 % of it is utilized for transmission. How many tele08 Apr, 2018Communication System
  14. 14A granite rod of 60 cm length is clamped at its middle point and is set into longitudinal vibrations. The density of granite is 2.7 10 3 kg 08 Apr, 2018Travelling Waves
  15. 15It is found that if a neutron suffers an elastic collinear collision with a deuterium at rest, the fractional loss of its energy is P d , wh08 Apr, 2018Collisions
  16. 16The density of a material, in the shape of a cube, is determined by measuring three sides of the cube and its mass. If the relative errors i08 Apr, 2018Errors of Measurement
  17. 17Two moles of an ideal monoatomic gas occupies a volume V at 27 o C . The gas expands adiabatically to a volume 2 V . Calculate ( a ) the fin08 Apr, 2018Thermodynamic Processes
  18. 18A solid sphere of radius r made of a soft material of bulk modulus K is surrounded by a liquid in a cylindrical container. A massless piston08 Apr, 2018Bulk Modulus
  19. 19A parallel plate capacitor of capacitance 90 pF is connected to a battery of EMF 20 V . If a dielectric material of dielectric constant K = 08 Apr, 2018Capacitors with Dielectric
  20. 20The dipole moment of a circular loop carrying a current I , is m and the magnetic field at the centre of the loop is B 1 . When the dipole m08 Apr, 2018Magnetic Dipole
  21. 21An electron from various excited states of hydrogen atom emit radiation to come to the ground state. Let n , g be the de Broglie wavelength 08 Apr, 2018Atomic Spectrum
  22. 22The mass of a hydrogen molecule is 3.32 10 - 27 kg . If 10 23 hydrogen molecules strike, per second, a fixed wall of the area 2 cm 2 at an a08 Apr, 2018Collisions
  23. 23All the graphs below are intended to represent the same motion. One of them does it incorrectly. Pick it up.08 Apr, 2018Graphs of motion in one dimension
  24. 24An electron, a proton and an alpha particle having the same kinetic energy are moving in circular orbits of radii r e , r p , r respectively08 Apr, 2018Motion of Charged Particle in Magnetic Field
  25. 25On interchanging the resistances, the balance point of a meter bridge shifts to the left by 10 cm . The resistance of their series combinati08 Apr, 2018Wheatstone Bridge
  26. 26In a potentiometer experiment, it is found that no current passes through the galvanometer when the terminals of the cell are connected acro08 Apr, 2018Electric Instruments
  27. 27If the series limit frequency of the Lyman series is V L , then the series limit frequency of the Pfund series is:08 Apr, 2018Atomic Spectrum
  28. 28The angular width of the central maximum in a single slit diffraction pattern is 60 . The width of the slit is 1 m . The slit is illuminated08 Apr, 2018Diffraction of Light
  29. 29A particle is moving in a circular path of radius a under the action of an attractive potential U = - k 2 r 2 . Its total energy is:08 Apr, 2018Energy
  30. 30A silver atom in a solid oscillates in simple harmonic motion in some direction with a frequency of 10 12 s - 1 . What is the force constant08 Apr, 2018Time Period and Frequency

Frequently Asked Questions

1.How many questions are in the JEE Main 2018 8th April 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.What is the structure of the JEE Main 2018 8th April paper?

The JEE Main 2018 8th April 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.What is the difficulty level of the JEE Main 2018 8th April paper?

Each question on MARKS carries a difficulty rating. Of the 90 rated questions in this paper, 25 (28%) are easy, 50 (56%) are medium and 15 (17%) are hard. Subject wise:

  • Chemistry: 8 easy, 19 medium, 3 hard
  • Mathematics: 7 easy, 18 medium, 5 hard
  • Physics: 10 easy, 13 medium, 7 hard
5.Which chapters had the most questions in the JEE Main 2018 8th April paper?

The chapters with the most questions in each subject were:

  • Chemistry: Alcohols Phenols and Ethers (3), Chemical Bonding and Molecular Structure (3), and Ionic Equilibrium (3).
  • Mathematics: Application of Derivatives (2), Determinants (2), and Parabola (2).
  • Physics: Center of Mass Momentum and Collision (3), Current Electricity (3), and Alternating Current (2).
6.Are there any out-of-syllabus questions in the JEE Main 2018 8th April paper?

Yes. 18 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 8th April 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 8th April 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 8th April 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.