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KVPY 2013 SA

Browse the complete Chemistry, Mathematics, and Physics question set from the KVPY 2013 SA 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.

Chemistry

  1. 1The decay profiles of three radioactive species and are given below : These profiles imply that the decay constants and follow the order2013 (SA)
  2. 2The number of valence electrons in an atom with electronic configuration is2013 (SA)
  3. 3Which of the following molecules has no dipole moment?2013 (SA)
  4. 4A specific volume of requires to diffuse out of a container. The time required by an equal volume of to diffuse out under identical conditio2013 (SA)
  5. 5Acetic acid reacts with sodium metal at room temperature to produce2013 (SA)
  6. 6The number of hybridized carbon atoms in , is2013 (SA)
  7. 7The degree of dissociation of acetic acid in water of acetic acid is is2013 (SA)
  8. 8The order of reactivity of and with water is2013 (SA)
  9. 9The equilibrium constant, for is . If the equilibrium concentration of benzene is , that of accetylene in must be2013 (SA)
  10. 10Which of the following metals will precipitate copper from copper sulphate solution?2013 (SA)
  11. 11The radii of the first Bohr orbit of and are in the order2013 (SA)
  12. 12Compound ' ' on heating with dust gives compound ' ' which on treatment with followed by reaction with dust gives propionaldehyde. The struc2013 (SA)
  13. 13The structure of cis- -hexene is2013 (SA)
  14. 14The weight percent of sucrose (formula weight in an aqueous solution is . The density of the solution is , the concentration of sucrose in t2013 (SA)
  15. 15Which of the following is an anhydride?2013 (SA)
  16. 16The pair of atoms having the same number of neutrons is2013 (SA)
  17. 17The moelcule having a formyl group is2013 (SA)
  18. 18The amount of metallic (Atomic weight required to react with aqueous sodium hydroxide to produce of , is2013 (SA)
  19. 19-Dimethylbut- -ene when reacted with bromine forms a compound which upon heating with alcoholic produce the following major product.2013 (SA)
  20. 20Natural abundances of and isotopes of carbon are and , respectively. Assuming they only contributes to the mol. wt. of , the percentage of h2013 (SA)

Mathematics

  1. 1Ten points lie in a plane so that no three of them are collinear. The number of lines passing through exactly two of these points and dividi2013 (SA)
  2. 2If are natural numbers such that , then the minimum possible value of is2013 (SA)
  3. 3In a city, the total income of all people with salary below per annum is less than the total income of all people with salary above per annu2013 (SA)
  4. 4Let be three non-negative integers such that . The maximum possible value of is2013 (SA)
  5. 5The number of values of for which there is an isosceles triangle with sides of length and is2013 (SA)
  6. 6Tangents to a circle at points and on the circle intersect at a point . If and then the radius of the circle is2013 (SA)
  7. 7Let be natural numbers in an arithmetic progression such that is the cube of an integer and is square of an integer. The least possible valu2013 (SA)
  8. 8In the figure given below, is a regular hexagon of side length , and are squares. Then the ratio Area Area equals2013 (SA)
  9. 9How many natural numbers are there such that is a perfect square?2013 (SA)
  10. 10In an acute-angled triangle , the altitudes from when extended intersect the circumcircle again at points , respectively. If then equals2013 (SA)
  11. 11Let be non-zero real numbers. Which of the following statements about the quadratic equation is neccesarily true? It has at least one negati2013 (SA)
  12. 12A person is running around a circular track completing one round every seconds. Another person running in the opposite direction meets every2013 (SA)
  13. 13Let be non-zero real numbers such that and , then is equal to2013 (SA)
  14. 14Let be a square and let be point on segment such that . Let be a point on segment such that . Then the ratio of the area of quadrilateral to2013 (SA)
  15. 15On each face of a cuboid, the sum of its perimeter and its area is written. Among the six numbers so written, there are three distinct numbe2013 (SA)
  16. 16In a triangle with , points are on the interior of segments , respectively. Which of the following triangles be similar to ?2013 (SA)
  17. 17The least positive integer for which is2013 (SA)
  18. 18In a rectangle , points and are the midpoints of and , respectively. Lines and when extended intersect at , lines and when extended intersec2013 (SA)
  19. 19Suppose the height of a pyramid with a square base is decreased by and the lengths of the sides of its square base are increased by (where .2013 (SA)

Physics

  1. 1An electron enters a chamber in which a uniform magnetic field is present as shown An electric field of appropriate magnitude is also applie2013 (SA)
  2. 2The figure shows a bar magnet and a metallic coil. Consider four situations. Moving the magnet away from the coil. Moving the coil towards t2013 (SA)
  3. 3The refractive index of a prism measured using three lines of a mercury vapour lamp. If and are the measured refractive indices for these gr2013 (SA)
  4. 4A horizontal parallel beam of light passes through a vertical convex lens of focal length and is then reflected by a tilted plane mirror so 2013 (SA)
  5. 5Two identical uniform rectangular blocks (with longest side ) and a solid sphere of radius are to be balanced at the edge of a heavy table s2013 (SA)
  6. 6A current of A flows through a resistor represented by the circuit diagram. The current in the resistor is2013 (SA)
  7. 7Consider the circuit shown in the figure below : All the resistors are identical. The ratio is2013 (SA)
  8. 8A man inside a freely falling box throws a heavy ball towards a side wall. The ball keeps on bouncing between the opposite walls of the box.2013 (SA)
  9. 9Two stones of mass and (such that are dropped time apart from the same height towards the ground. At a later time the difference in their sp2013 (SA)
  10. 10A tall tank filled with water has an irregular shape as shown. The wall makes an angle of with the horizontal; the wall is normal to the bas2013 (SA)
  11. 11An ideal gas filled in a cylinder occupies volume . The gas is compressed isothermally to the volume Now the cylinder valve is opened and th2013 (SA)
  12. 12An electron with an initial speed of is brought to rest by an electric field. The mass and charge of an electron are and , respectively. Ide2013 (SA)
  13. 13If the current through a resistor in a circuit increases by , the power dissipated by the resistor2013 (SA)
  14. 14In a car a rear view mirror having a radius of curvature forms a virtual image of a bus located from the mirror. The factor by which the mir2013 (SA)
  15. 15A electrical heater is used to heat a container filled with of water. It is found that the temperature of the water and the container rise b2013 (SA)
  16. 16A ball is thrown horizontally from a height with a certain initial velocity at time . The ball bounces repeatedly from the ground with the c2013 (SA)
  17. 17Solar energy is incident normally on the earth's surface at the rate of about . The distance between the earth and the sun is . Energy and m2013 (SA)
  18. 18Two skaters and are skating towards each other. Skater throws a ball towards every such that it always leaves her hand with speed with respe2013 (SA)
  19. 19A ray of light incident on a transparent sphere at an angle and refracted at an angle , emerges from the sphere after suffering one internal2013 (SA)
  20. 20The accompanying graph of position versus time represents the motion of a particle. If and are both positive constants, the expression that 2013 (SA)

Frequently Asked Questions

1.How many questions are in the KVPY 2013 SA paper?

This paper has 59 questions in total - 20 from Chemistry, 19 from Mathematics, and 20 from 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.Where can I find the SB/SX paper for the same year?

The KVPY 2013 SB/SX paper is listed separately - you can switch to it from the "KVPY Paper Wise PYQs" panel, under KVPY 2013.

4.How is the KVPY 2013 SA paper structured?

The KVPY 2013 SA paper on MARKS has 59 questions, organised by subject:

  • Chemistry: 20 questions - 20 single-correct.
  • Mathematics: 19 questions - 19 single-correct.
  • Physics: 20 questions - 20 single-correct.
5.Which chapters were asked the most in the KVPY 2013 SA paper?

The chapters with the most questions in each subject were:

  • Chemistry: Electrochemistry (2), Hydrocarbons (2), and Structure of Atom (2).
  • Mathematics: Basic of Mathematics (9), Permutation Combination (2), and Properties of Triangles (2).
  • Physics: Ray Optics (4), Current Electricity (3), and Center of Mass Momentum and Collision (2).
6.Where can I find the solutions for the KVPY 2013 SA 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.

7.How should I use the KVPY 2013 SA paper to check my preparation?

Set a timer, attempt the 59 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 KVPY. Repeating this with other papers shows whether the same weak spots keep coming back.