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JEE Main 2012 Offline

Browse the complete Chemistry, Mathematics, and Physics question set from the JEE Main 2012 Offline 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%), 43 moderate (48%) and 20 tough (22%). That's a fairly typical mix for this exam. By subject: Physics 30% easy, 43% moderate, 27% tough; Chemistry 33% easy, 53% moderate, 13% tough; Mathematics 27% easy, 47% moderate, 27% tough.

Chemistry questions were spread across 25 chapters, with Aldehydes and Ketones (3), Haloalkanes and Haloarenes (2), and Hydrocarbons (2) carrying the most weight. Mathematics questions were spread across 22 chapters, with Application of Derivatives (2), Continuity and Differentiability (2), and Matrices (2) carrying the most weight. Physics questions were spread across 24 chapters, with Atomic Physics (2), Electrostatics (2), and Laws of Motion (2) carrying the most weight.

Chemistry

  1. 1Which among the following will be named as dibromidobis (ethylene diamine)chromium(III) bromide?2012 (Offline)Nomenclature of coordination compounds
  2. 2Which method of purification is represented by the following equation:2012 (Offline)Refining of Crude Metal
  3. 3Lithium forms body centred cubic structure. The length of the side of its unit cell is . Atomic radius of the lithium will be:2012 (Offline)Cubic system
  4. 4The molecule having smallest bond angle is :2012 (Offline)Modern periodic table
  5. 5Which of the following compounds can be detected by Molisch's test ?2012 (Offline)Tests for aldehyde and ketones
  6. 6The incorrect expression among the following is :2012 (Offline)Entropy and Second law of thermodynamics
  7. 7The density of a solution prepared by dissolving of urea (mol. Mass ) in of water is . The molarity of this solution is :2012 (Offline)Concentration terms
  8. 8The species which can best serve as an initiator for the cationic polymerization is :2012 (Offline)Classification of Polymers
  9. 9Which of the following on thermal decomposition yields a basic as well as an acidic oxide ?2012 (Offline)Compounds of Alkaline Earth Metals
  10. 10The standard reduction potentials for , and are and respectively. The reaction will be spontaneous when:2012 (Offline)Cells and Electrode Potential, Nernst Equation
  11. 11According to Freundlich adsorption isotherm, which of the following is correct ?2012 (Offline)Adsorption isotherms
  12. 12The equilibrium constant for the reaction at temperature is . The value of for the reaction, at the same temperature is :2012 (Offline)Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application
  13. 13The compressibility factor for a real gas at high pressure is :2012 (Offline)Real Gases and Van der Waal's Equation
  14. 14Which one of the following statements is correct?2012 (Offline)Properties and Preparation of Amino Acids
  15. 15Aspirin is known as:2012 (Offline)Drugs and It's Classification
  16. 16Ortho-Nitrophenol is less soluble in water than and Nitrophenols because :2012 (Offline)Reactions of aromatic compounds
  17. 17How many chiral compounds are possible on monochlorination of methyl butane ?2012 (Offline)Preparation and Properties of Monohalides
  18. 18Very pure hydrogen can be made by which of the following processes?2012 (Offline)Preparation and Properties of Hydrogen
  19. 19The electrons identified by quantum numbers and : (a) (b) (c) (d) Can be placed in order of increasing energy as:2012 (Offline)Quantum mechanical model
  20. 20For a first order reaction, products, the concentration of changes from to in minutes. The rate of reaction when the concentration of is is 2012 (Offline)Integrated rate laws
  21. 21Iron exhibits and oxidation states. Which of the following statements about iron is incorrect?2012 (Offline)Properties of D-block elements
  22. 22The pH of a molar solution of the acid is . The value of the ionization constant, Ka of this acid is :2012 (Offline)PH of solutions
  23. 23Which branched chain isomer of the hydrocarbon with molecular mass gives only one isomer of mono substituted alky halide?2012 (Offline)Preparation and Properties of Monohalides
  24. 24for water is . If your automobile radiator holds of water, how many grams of ethylene glycol must you add to get the freezing point of the s2012 (Offline)Colligative Properties and Abnormal Molecular Masses
  25. 25What is DDT among the following :2012 (Offline)Environmental Pollution and pollutants
  26. 26The increasing order of the ionic radii of the given isoelectronic species is :2012 (Offline)Atomic Mass and Atomic Size
  27. 27Hexyne gives trans Hexene on treatment with :2012 (Offline)Reactions of alkynes
  28. 28lodoform can be prepared from all except :2012 (Offline)Tests for aldehyde and ketones
  29. 29In which of the following pairs the two species are not isostructural?2012 (Offline)Hybridisation and VSEPR Theory
  30. 30In the given transformation, which of the following is the most appropriate reagent?2012 (Offline)Chemical reactions for aldehydes and ketones

Mathematics

  1. 1The equation has2012 (Offline)Solving Trigonometric Equation
  2. 2Let and be two unit vectors. If the vectors and are perpendicular to each other, then the angle between and is2012 (Offline)Product of 2 vectors
  3. 3A spherical balloon is filled with cubic meters of helium gas. If a leak in the balloon causes the gas to escape at the rate of cubic meters2012 (Offline)Maxima Minima
  4. 4Statement : The sum of the series is . Statement : for any natural number .2012 (Offline)Summation of Series
  5. 5The negation of the statement "If I become a teacher, then I will open a school" is2012 (Offline)Mathematical Reasoning
  6. 6If the integral , then is equal to2012 (Offline)Integration by Substitution
  7. 7Statement : An equation of a common tangent to the parabola and the ellipse is . Statement : If the line is a common tangent to the parabola2012 (Offline)Tangent to Parabola
  8. 8Let . If and are column matrices such that and , then is equal to2012 (Offline)Basic Algebra of Matrices
  9. 9If is a positive integer, then is2012 (Offline)Integral and Fractional Part of a Number
  10. 10If times the term of an with non zero common difference equals the times its term, then the term of this is2012 (Offline)Arithmetic Progression
  11. 11In a , if and , then the angle is equal to2012 (Offline)Sine Rule and its application
  12. 12An equation of a plane parallel to the plane and at a unit distance from the origin is2012 (Offline)Plane in Space
  13. 13If the line passes through the point which divides the line segment joining the points and in the ratio , then equals2012 (Offline)Coordinate System
  14. 14Let be observations, and let be their arithematic mean and be their variance. Statement : Variance of is . Statement : Arithmetic mean of is2012 (Offline)Measures of Dispersion
  15. 15The population at time of a certain mouse species satisfies the differential equation . If , then the time at which the population becomes z2012 (Offline)Applications of DE
  16. 16Let be such that the function given by has extreme values at and . Statement 1: has local maximum at and at . Statement 2: and2012 (Offline)Maxima Minima
  17. 17The area bounded between the parabolas and , and the straight line is2012 (Offline)Area bounded by two curves
  18. 18Assuming the balls to be identical except for difference in colours, the number of ways in which one or more balls can be selected from whit2012 (Offline)Selection of one or more item
  19. 19If is a function defined by , where denotes the greatest integer function, then is2012 (Offline)Continuity
  20. 20If the lines and intersect, then is equal to2012 (Offline)Line in Space
  21. 21Three numbers are chosen at random without replacement from . The probability that their minimum is , given that their maximum is , is2012 (Offline)Classical Definition of Probability
  22. 22If and is real, then the point represented by the complex number lies2012 (Offline)Geometry of Complex Number
  23. 23Let and be matrices with . If and , then determinant of is equal to2012 (Offline)Product of Matrices
  24. 24If , then equals2012 (Offline)Leibnitz Rule of Differentiation
  25. 25The length of the diameter of the circle which touches the -axis at the point and passes through the point is2012 (Offline)Equation of Circle & its intercept
  26. 26Let . The number of different ordered pairs that can be formed such that and is empty, is2012 (Offline)Combination
  27. 27An ellipse is drawn by taking a diameter of the circle as its semiminor axis and a diameter of the circle as its semi-major axis. If the cen2012 (Offline)Equation of Ellipse
  28. 28Consider the function . Statement : Statement : is continuous in , differentiable in and .2012 (Offline)Differentiability
  29. 29A line is drawn through the point to meet the coordinate axes at and such that it forms a triangle , where is the origin. If the area of the2012 (Offline)Locus
  30. 30Let be a parallelogram such that and be an acute angle. If is the vector that coincides with the altitude directed from the vertex to the si2012 (Offline)Algebra of Vectors

Physics

  1. 1A wooden wheel of radius is made of two semicircular parts (see figure); The two parts are held together by a ring made of a metal strip of 2012 (Offline)Thermal Expansion
  2. 2The figure shows an experimental plot for discharging of a capacitor in an circuit. The time constant of this circuit lies between:2012 (Offline)Charging and Discarging of capacitors
  3. 3In a uniformly charged sphere of total charge and radius , the electric field is plotted as a function of distance from the centre. The grap2012 (Offline)Electric Field and Electric Field Lines
  4. 4An electromagnetic wave in vacuum has the electric and magnetic fields and , which are always perpendicular to each other. The direction of 2012 (Offline)Electromagnetic Waves and Maxwell's equations
  5. 5If a simple pendulum has significant amplitude (up to a factor of of original) only in the period between to , then may be called the averag2012 (Offline)Applications of SHM
  6. 6Hydrogen atom is excited from ground state to another state with principal quantum number equal to . Then the number of spectral lines in th2012 (Offline)Atomic Spectrum
  7. 7A coil is suspended in a uniform magnetic field, with the plane of the coil parallel to the magnetic lines of force. When a current is passe2012 (Offline)Induced Electric Field
  8. 8The mass of a spaceship is . It is to be launched from the earth's surface out into free space. The value of ' ' and ' ' (radius of earth) a2012 (Offline)Gravitational potential and Potential Energy
  9. 9Helium gas goes through a cycle (consisting of two isochoric and two isobaric lines) as shown in figure. Efficiency of this cycle is nearly:2012 (Offline)Thermodynamic Processes
  10. 10In Young's double slit experiment, one of the slit is wider than other, so that the amplitude of the light from one slit is double of that f2012 (Offline)Youngs Double Slit Experiment
  11. 11A liquid in a beaker has temperature at time and is temperature of surroundings, then according to Newton's law of cooling the correct graph2012 (Offline)Radiation
  12. 12A particle of mass is at rest at the origin at time . It is subjected to a force in the direction. Its speed is depicted by which of the fol2012 (Offline)Newton's laws of motion
  13. 13Two electric bulbs marked and are connected in series to a supply. Which of the bulbs will fuse?2012 (Offline)Electric Power and Heating Effect of Current
  14. 14Resistance of a given wire is obtained by measuring the current flowing in it and the voltage difference applied across it. If the percentag2012 (Offline)Errors of Measurement
  15. 15A boy can throw a stone up to a maximum height of . The maximum horizontal distance that the boy can throw the same stone up to will be2012 (Offline)Projectile motion
  16. 16This question has statement and statement . Of the four choices given after the statements, choose the one that best describes the two state2012 (Offline)Davison and Germer Experiment
  17. 17A thin liquid film formed between a U-shaped wire and a light slider supports a weight of (see figure). The length of the slider is and its 2012 (Offline)Surface tension
  18. 18A charge is uniformly distributed over the surface of non conducting disc of radius . The disc rotates about an axis perpendicular to its pl2012 (Offline)Biot-Savart's Law and Ampere's Circuital Law
  19. 19Truth table for system of four NAND gates as shown in figure is2012 (Offline)Logic gates
  20. 20A radar has a power of and is operating at a frequency of . It is located on a mountain top of height . The maximum distance upto which it c2012 (Offline)Communication System
  21. 21Assume that a neutron breaks into a proton and an electron. The energy released during this process is (Mass of neutron mass of proton mass 2012 (Offline)Nuclear energy
  22. 22A Carnot engine, whose efficiency is , takes in heat from a source maintained at a temperature of It is desired to have an engine of efficie2012 (Offline)Heat Engine, Refrigerator and Second Law of Thermodynamics
  23. 23This question has statement and statement . Of the four choices given after the statements, choose the one that best describes the two state2012 (Offline)Spring force
  24. 24Two cars of masses and are moving in circles of radii and , respectively. Their speeds are such that they make complete circles in the same 2012 (Offline)Circular motion
  25. 25A cylindrical tube, open at both ends, has a fundamental frequency, , in air. The tube is dipped vertically in water so that half of it is i2012 (Offline)Organ Pipe (Vibration of Air Column)
  26. 26An object in front of a lens forms a sharp image on a film behind the lens. A glass plate thick, of refractive index is interposed between l2012 (Offline)Lens Formula, Refraction of light from curved surface
  27. 27A diatomic molecule is made of two masses and which are separated by a distance . If we calculate its rotational energy by applying Bohr's r2012 (Offline)Bohr's Atomic Model
  28. 28A spectrometer gives the following reading when used to measure the angle of a prism. Main scale reading: degree Vernier scale reading : div2012 (Offline)Experimental Physics
  29. 29This question has statement and statement . Of the four choices given after the statements, choose the one that best describes the two state2012 (Offline)Electric Potential and Potential Energy
  30. 30Proton, Deuteron and alpha particle of the same kinetic energy are moving in circular trajectories in a constant magnetic field. The radii o2012 (Offline)Motion of Charged Particle in Magnetic Field

Frequently Asked Questions

1.How many questions are in the JEE Main 2012 Offline 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 2012 Offline paper structured?

The JEE Main 2012 Offline 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 2012 Offline paper?

Each question on MARKS carries a difficulty rating. Of the 90 rated questions in this paper, 27 (30%) are easy, 43 (48%) are medium and 20 (22%) are hard. Subject wise:

  • Chemistry: 10 easy, 16 medium, 4 hard
  • Mathematics: 8 easy, 14 medium, 8 hard
  • Physics: 9 easy, 13 medium, 8 hard
5.Which chapters were asked the most in the JEE Main 2012 Offline paper?

The chapters with the most questions in each subject were:

  • Chemistry: Aldehydes and Ketones (3), Haloalkanes and Haloarenes (2), and Hydrocarbons (2).
  • Mathematics: Application of Derivatives (2), Continuity and Differentiability (2), and Matrices (2).
  • Physics: Atomic Physics (2), Electrostatics (2), and Laws of Motion (2).
6.Are there any out-of-syllabus questions in the JEE Main 2012 Offline 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.

7.Where can I find the solutions for the JEE Main 2012 Offline 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 Offline 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 Offline 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.