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JEE Main 2012 19th May Online

Browse the complete Chemistry, Mathematics, and Physics question set from the JEE Main 2012 19th May 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 - 30 easy (33%), 43 moderate (48%) and 17 tough (19%). That's a fairly typical mix for this exam. By subject: Physics 30% easy, 50% moderate, 20% tough; Chemistry 40% easy, 50% moderate, 10% tough; Mathematics 30% easy, 43% moderate, 27% tough.

Chemistry questions were spread across 21 chapters, with Chemical Bonding and Molecular Structure (3), General Organic Chemistry (3), and Classification of Elements and Periodicity in Properties (2) carrying the most weight. Mathematics questions were spread across 27 chapters, with Three Dimensional Geometry (3), Quadratic Equation (2), and Application of Derivatives (1) carrying the most weight. Physics questions were spread across 23 chapters, with Laws of Motion (3), Current Electricity (2), and Electromagnetic Induction (2) carrying the most weight.

Chemistry

  1. 1Among the following, the molecule with the lowest dipole moment is19 May, 2012 (Online)Dipole moment
  2. 2If of at is , the combination amongst the following which gives a precipitate of is19 May, 2012 (Online)Solubility
  3. 3The correct order of ligands in the spectrochemical series is19 May, 2012 (Online)Werner's theory and Valence Bond Theory
  4. 4The value of for the equilibrium reaction is 2 . The percentage dissociation of at a pressure of is19 May, 2012 (Online)Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application
  5. 5The order of basicity of the compounds is19 May, 2012 (Online)Electron displacement effects
  6. 6Ammonium chloride crystallizes in a body centred cubic lattice with edge length of unit cell of 390 . If the size of chloride ion is , the s19 May, 2012 (Online)Cubic system
  7. 7Which pair of elements with the given atomic numbers is expected to have similar properties?19 May, 2012 (Online)Modern periodic table
  8. 8Extraction of zinc from zinc blende is achieved by19 May, 2012 (Online)Reduction to Crude Metal
  9. 9Liquids A and B form an ideal solution. At , the total vapour pressure of a solution containing of A and of B is . The total vapour pressure19 May, 2012 (Online)Vapour pressure and raoult's law
  10. 10The IUPAC name of the following compound is19 May, 2012 (Online)Isomerism of Organic Compounds
  11. 11Which of the following paramagnetic ions would exhibit a magnetic moment (spin only) of the order of ? (At. Nos. )19 May, 2012 (Online)Quantum mechanical model
  12. 12Which one of the following will react most vigorously with water?19 May, 2012 (Online)Periodic properties
  13. 13Which of the following has the square planar structure?19 May, 2012 (Online)Hybridisation and VSEPR Theory
  14. 14The major product obtained in the photobromination of 2-methyl butane is19 May, 2012 (Online)Preparation and Properties of Monohalides
  15. 15If the kinetic energy of an electron is increased four times, the wavelength of the de-Broglie wave associated with it would become19 May, 2012 (Online)Dual Behaviour of Matter and Heisenberg Uncertainty Principle
  16. 16When is passed over red hot coke it partially gets reduced to . Upon passing of over red hot coke, the total volume of the gases increased t19 May, 2012 (Online)Laws of chemical combination
  17. 17For a reaction Products, a plot of versus is shown in the figure. If the initial concentration of is represented by , the order of the react19 May, 2012 (Online)Integrated rate laws
  18. 18An open vessel at is heated till of the air in it is expelled. Assuming that the volume of the vessel remains constant, the temperature to w19 May, 2012 (Online)Gas laws and Ideal Gas Equation
  19. 19Which of the following is a polyamide?19 May, 2012 (Online)Preparation and Properties of Polymers
  20. 20The compound of xenon with zero dipole moment is19 May, 2012 (Online)Dipole moment
  21. 21The standard potentials of , and electrodes are , and , respectively. An aqueous solution which contains one mole per litre of the salts of 19 May, 2012 (Online)Cells and Electrode Potential, Nernst Equation
  22. 22The product of the reaction between ethyl benzene and N-bromosuccinamide is19 May, 2012 (Online)Preparation and Properties of Aryl Halides
  23. 23On addition of of solution to 10 gold sol in the presence of of starch, the coagulation is just prevented. Starch has gold number19 May, 2012 (Online)Properties of colloidal solution
  24. 24Which of the following is a non-reducing sugar?19 May, 2012 (Online)Disaccharides and Polysaccharides
  25. 25Fog is a colloidal solution of19 May, 2012 (Online)Properties of colloidal solution
  26. 26The enthalpy of neutralisation of with is and the enthalpy of neutralisation of with is . The enthalpy of ionisation of is19 May, 2012 (Online)Laws of Thermochemistry and Enthalpy Change
  27. 27Aspirin can be prepared by the reaction of19 May, 2012 (Online)Drugs and It's Classification
  28. 28Beilstein test is used for the estimation of which one of the following elements?19 May, 2012 (Online)Qualitative analysis of organic compounds
  29. 29Square-planar geometry is shown by19 May, 2012 (Online)Werner's theory and Valence Bond Theory
  30. 30Reagent used to convert allyl alcohol to acrolein is19 May, 2012 (Online)Compounds of Transition Metals

Mathematics

  1. 1The equation of the normal to the parabola, at is19 May, 2012 (Online)Normal to Parabola
  2. 2The value of the integral , where [.] denotes the greatest integer function is19 May, 2012 (Online)Properties of Definite Integration
  3. 3If , are non zero complex numbers satisfying and , then is equal to19 May, 2012 (Online)Expansion of Determinants
  4. 4If six students, including two particular students and , stand in a row, then the probability that and are separated with one student in bet19 May, 2012 (Online)Conditional Probability and Multiplication Theorem
  5. 5The sum of the series upto terms is19 May, 2012 (Online)Summation of Series
  6. 6If and , then the angle between and is19 May, 2012 (Online)Product of 2 vectors
  7. 7If and , then equals19 May, 2012 (Online)Integration by Substitution
  8. 8Let and . If the quadratic equation has two complex roots and , then is19 May, 2012 (Online)Relation between Roots and Coefficients
  9. 9If three distinct points are given in the 2dimensional coordinate plane such that the ratio of the distance of each one of them from the poi19 May, 2012 (Online)Circle and Polygon
  10. 10If the line meets the circle in two points equidistant from and on opposite sides of -axis, then19 May, 2012 (Online)line and circle
  11. 11Let be a function satisfying , for all and , where is the set of all real numbers and denotes the largest integer less than or equal to . St19 May, 2012 (Online)Continuity
  12. 12The general solution of the differential equation is19 May, 2012 (Online)Linear Differential Equation
  13. 13A value of is19 May, 2012 (Online)Principal Value and Basics
  14. 14Let and be two Statements. Amongst the following, the Statement that is equivalent to is19 May, 2012 (Online)Mathematical Reasoning
  15. 15If the three planes and contain a common line, then is equal to19 May, 2012 (Online)Plane in Space
  16. 16If , then is19 May, 2012 (Online)Algebraic and Rational Limits
  17. 17Let and be complex numbers such that , and denotes the principal argument of . Statement 1:If , then . Statement 2: , implies arg .19 May, 2012 (Online)Conjugate, modulus and argument
  18. 18Consider a quadratic equation , where and let . Statement 1: The quadratic equation has at least one root in the interval . Statement 2: The19 May, 2012 (Online)Location of Roots
  19. 19Suppose and are such that , sec and are in A.P. If for some , then is equal to19 May, 2012 (Online)Basic Identities & T Ratios
  20. 20Statement 1: The shortest distance between the lines and is . Statement 2: The shortest distance between two parallel lines is the perpendic19 May, 2012 (Online)Line in Space
  21. 21If , then the value of is given by19 May, 2012 (Online)Terms of Binomial Expansion
  22. 22If denotes the set of all subsets of a given set , then the number of one-to-one functions from the set to the is19 May, 2012 (Online)Types of Function (Mapping)
  23. 23The number of arrangements that can be formed from the letters taken 3 at a time without repetition and each arrangement containing at least19 May, 2012 (Online)Combination
  24. 24The weight of a certain stock of fish is given by , where is the size of stock and is the average weight of a fish. If and change with time 19 May, 2012 (Online)Maxima Minima
  25. 25The area of the region bounded by the curve , and the lines, , and , is19 May, 2012 (Online)Area bounded by Miscellaneous Curves
  26. 26If and are three vectors such that is parallel to the plane of and , then is equal to19 May, 2012 (Online)Line and Plane
  27. 27Let be the line , in the two dimensional plane. Statement 1: The image of the point in is the point Statement 2: The points and lie on oppos19 May, 2012 (Online)Point and Line
  28. 28The median of 100 observations grouped in classes of equal width is 25 . If the median class interval is 20-30 and the number of observation19 May, 2012 (Online)Median
  29. 29If the foci of the ellipse coincide with the foci of the hyperbola , then is equal to19 May, 2012 (Online)Equation of Ellipse
  30. 30If denotes the transpose of the matrix , where and are integers such that , then the number of such matrices for which is19 May, 2012 (Online)Trace of a Matrix

Physics

  1. 1A uniform tube of length is held vertically with its lower end dipped in water. A sound source of frequency sends sound waves into the tube.19 May, 2012 (Online)Organ Pipe (Vibration of Air Column)
  2. 2Sand is being dropped on a conveyer belt at the rate of per second. The force necessary to keep the belt moving with a constant speed of wil19 May, 2012 (Online)Newton's laws of motion
  3. 3A block of weight rests on a horizontal floor with coefficient of static friction . It is desired to make the block move by applying minimum19 May, 2012 (Online)Frictional force
  4. 4A coil of self inductance is connected at one end of two rails as shown in figure. A connector of length , mass can slide freely over the tw19 May, 2012 (Online)Magnetic Flux, Faraday's and Lenz law
  5. 5A large number of droplets, each of radius, coalesce to form a bigger drop of radius, . An engineer designs a machine so that the energy rel19 May, 2012 (Online)Surface tension
  6. 6The amount of heat produced in an electric circuit depends upon the current , resistance and time . If the error made in the measurements of19 May, 2012 (Online)Errors of Measurement
  7. 7This question has Statement 1 and Statement 2. Of the four choices given after the Statements, choose the one that best describes the two St19 May, 2012 (Online)Heat Engine, Refrigerator and Second Law of Thermodynamics
  8. 8The displacement of a pendulum for is correctly represented by19 May, 2012 (Online)Simple Harmonic Motion
  9. 9A large cylindrical rod of length is made by joining two identical rods of copper and steel of length each. The rods are completely insulate19 May, 2012 (Online)Conduction
  10. 10Two point masses of mass and are in outer space (far from gravitational influence of other objects) at a distance from each other. They move19 May, 2012 (Online)Non-uniform Circular Motion
  11. 11Which one of the following is the Boolean expression for NOR gate?19 May, 2012 (Online)Logic gates
  12. 12Two coherent plane light waves of equal amplitude makes a small angle with each other. They fall almost normally on a screen. If is the wave19 May, 2012 (Online)Interference of Light
  13. 13Ionisation energy of Li (Lithium) atom in ground state is . Binding energy of an electron in ion in ground state is . Energy required to rem19 May, 2012 (Online)Bohr's Atomic Model
  14. 14This question has Statement 1 and Statement 2. Of the four choices given after the Statements, choose the one that best describes the two St19 May, 2012 (Online)Self and Mutual Inductance
  15. 15A charge of total amount is distributed over two concentric hollow spheres of radii and ) such that the surface charge densities on the two 19 May, 2012 (Online)Electric Potential and Potential Energy
  16. 16divisions on the main scale of a vernier calliper coincide with divisions of the vernier scale. If each division of main scale is ' ' units,19 May, 2012 (Online)Experimental Physics
  17. 17The decay constants of a radioactive substance for and emission are and respectively. If the substance emits and simultaneously, then the av19 May, 2012 (Online)Radioactivity
  18. 18A moving particle of mass , makes a head on elastic collision with another particle of mass , which is initially at rest. The percentage los19 May, 2012 (Online)Collisions
  19. 19This question has Statement 1 and Statement 2. Of the four choices given after the Statements, choose the one that best describes the two St19 May, 2012 (Online)Photoelectric Effect
  20. 20A proton and a deuteron are both accelerated through the same potential difference and enter in a magnetic field perpendicular to the direct19 May, 2012 (Online)Motion of Charged Particle in Magnetic Field
  21. 21A glass prism of refractive index is immersed in water (refractive index ) as shown in figure. A light beam incident normally on the face is19 May, 2012 (Online)Prism and Dispersion of Light
  22. 22An electromagnetic wave with frequency and wavelength travels in the direction. Its magnetic field is along -axis. The vector equation for t19 May, 2012 (Online)Electromagnetic Waves and Maxwell's equations
  23. 23A volt battery is connected to two light bulbs as shown in figure. Light bulb 1 has resistance 3 ohm while light bulb 2 has resistance . Bat19 May, 2012 (Online)Electric Power and Heating Effect of Current
  24. 24A generator has armature resistance of and develops an induced emf of when driven at its rated speed. Its terminal voltage when a current of19 May, 2012 (Online)Electric Current and Drift of Electrons
  25. 25A goods train accelerating uniformly on a straight railway track, approaches an electric pole standing on the side of track. Its engine pass19 May, 2012 (Online)Uniform Motion
  26. 26A ring is suspended from a point on its rim as shown in the figure. When displaced from equilibrium, it oscillates with time period of 1 sec19 May, 2012 (Online)Angular oscillations
  27. 27The flat base of a hemisphere of radius a with no charge inside it lies in a horizontal plane. A uniform electric field is applied at an ang19 May, 2012 (Online)Electric Flux and Gauss Law
  28. 28A steel wire can sustain weight without breaking. If the wire is cut into two equal parts, each part can sustain a weight of19 May, 2012 (Online)Young's Modulus and Breaking Stres
  29. 29Given the electric field of a complete amplitude modulated wave as Where the subscript c stands for the carrier wave and for the modulating 19 May, 2012 (Online)Modulation
  30. 30The pressure of an ideal gas varies with volume as , where is a constant. One mole of the gas is allowed to undergo expansion such that its 19 May, 2012 (Online)Thermodynamic Processes

Frequently Asked Questions

1.How many questions are in the JEE Main 2012 19th May 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.What is the structure of the JEE Main 2012 19th May Online paper?

The JEE Main 2012 19th May 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.What is the difficulty level of the JEE Main 2012 19th May Online paper?

Each question on MARKS carries a difficulty rating. Of the 90 rated questions in this paper, 30 (33%) are easy, 43 (48%) are medium and 17 (19%) are hard. Subject wise:

  • Chemistry: 12 easy, 15 medium, 3 hard
  • Mathematics: 9 easy, 13 medium, 8 hard
  • Physics: 9 easy, 15 medium, 6 hard
5.Which chapters had the most questions in the JEE Main 2012 19th May Online paper?

The chapters with the most questions in each subject were:

  • Chemistry: Chemical Bonding and Molecular Structure (3), General Organic Chemistry (3), and Classification of Elements and Periodicity in Properties (2).
  • Mathematics: Three Dimensional Geometry (3) and Quadratic Equation (2).
  • Physics: Laws of Motion (3), Current Electricity (2), and Electromagnetic Induction (2).
6.Are there any out-of-syllabus questions in the JEE Main 2012 19th May Online paper?

Yes. 16 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 2012 19th May 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 2012 19th May 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 2012 19th May 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.