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KVPY 2015 SA

Browse the complete Chemistry, Mathematics, and Physics question set from the KVPY 2015 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. 1Reaction of 2 -butane with acidic gives2015 (SA)
  2. 2When of xenon (atomic mass ) reacted completely with of fluorine (atomic mass ), a mixture of and was produced. The molar ratio is :2015 (SA)
  3. 3At constant pressure, the volume of a fixed mass of a gas varies as a function of temperature as shown in the graph. The volume of the gas a2015 (SA)
  4. 4If Avogadro's number is , the number of sulphur atoms present in of is2015 (SA)
  5. 5The major product of the reaction is:2015 (SA)
  6. 6Mendeleev's periodic law states that the properties of elements are a periodic function of their2015 (SA)
  7. 7The amount of Ag (atomic mass ) deposited at the cathode when a current of is passed through a solution of for 1 hour is closest to:2015 (SA)
  8. 8Maximum number of electrons that can be accommodated in the subshell with azimuthal quantum number , is2015 (SA)
  9. 9A sweet smelling compounds formed by reacting acetic acid with ethanol in the presence of hydrochloric acid is2015 (SA)
  10. 10The major products of the following reaction are2015 (SA)
  11. 11When of at STP is burnt completely, of gas at STP and 72 of water are produced. The volume of the oxygen gas at STP consumed in the reaction2015 (SA)
  12. 12The element which readily forms an ionic bond has the electronic configuration.2015 (SA)
  13. 13The functional group present in a molecule having the formula is2015 (SA)
  14. 14The maximum number of isomeric ethers with the molecular formula is2015 (SA)
  15. 15The correct order of acidity of the following compounds is2015 (SA)
  16. 16The percentage of nitrogen by mass in ammonium sulphate is closest to (atomic masses2015 (SA)
  17. 17The gas released when baking soda is mixed with vinegar, is2015 (SA)
  18. 18Reaction of cthanol with conc. Sulphuric acid at produces a gas which is then treated with bromine in carbon tetrachloride. The major produc2015 (SA)
  19. 19Among , the metal that does not produce hydrogen gas in reaction with hydrochloric acid is.2015 (SA)
  20. 20The number of electrons required to reduce chromium completely in to in acidic medium, is2015 (SA)

Mathematics

  1. 1Two distinct polynomial and are defined as follows: If the equation and have a common root then the sum of the roots of the equation is2015 (SA)
  2. 2The average incomes of the people in two villages are and , respectively. Assume that . A person moves from the first village to the second 2015 (SA)
  3. 3The largest non-negative integer such that divides is.2015 (SA)
  4. 4Let be positive reals. Which of the following implies ?2015 (SA)
  5. 5A triangular corner is cut from a rectangular piece of paper and the resulting pentagon has sides in some order. The ratio of the area of th2015 (SA)
  6. 6Let be a square of side length 1 , and a circle passing through and , and touching . The radius of is2015 (SA)
  7. 7For a real number , let denote the largest integer less than or equal to , and let The number of solutions to be equation with is2015 (SA)
  8. 8Given are three cylindrical buckets whose circular bases are of radii units, respectively, Initially water is filled in these buckets upto t2015 (SA)
  9. 9The least positive integer for which is2015 (SA)
  10. 10A man standing on a railway platform noticed that a train took 21 seconds to cross the platform (this means the time elapsed from the moment2015 (SA)
  11. 11If is the smallest natural number such that is a perfect square, then the number of digits in is2015 (SA)
  12. 12How many ways are there to arrange the letters of the word EDUCATION so that all the following three conditions hold? the vowels occur in th2015 (SA)
  13. 13Let be an integer. Which of the following sets of numbers nec essarily contains a multiple of2015 (SA)
  14. 14In the figure given below, If the areas of the two regions are equal then which of the following is true?2015 (SA)
  15. 15Let be a trapezium with AD parallel to BC. Assume there is a point is interior of the segment such that and . Then the ratio of the area of 2015 (SA)
  16. 16In the figure given below, a rectangle of perimeter 76 units is divided into 7 congruent rectangles. What is the perimeter of each of the sm2015 (SA)
  17. 17Let be a square of a side length 1 , Let be points in the interiors of the sides , respectively, such that and RS intersect at right angles.2015 (SA)
  18. 18The number of distinct primes dividing is2015 (SA)
  19. 19In a triangle , points and are on and , respectively, such that is parallel to BC, Which of the two following always hold? (Here [PQR] denot2015 (SA)
  20. 20Let be an interior point of a triangle . Let and be the reflections of in and , respectively. IF are collinear then equals.2015 (SA)

Physics

  1. 1An object at rest at the origin begins to move in the direction with a uniform acceleration of for and then it continues moving with a unifo2015 (SA)
  2. 2In an experiment, mass of an object is measured by applying a known force on it, and then measuring its acceleration. IF, in the experiment,2015 (SA)
  3. 3One mole of ideal gas undergoes a linear process as shown in figure below. Its temperature expressed as a function of volume is.2015 (SA)
  4. 4A parachutist with total weight drops vertically onto a sandy ground with a speed of and comes to a halt over a distance of . The average fo2015 (SA)
  5. 5A point source of light is moving at a rate of towards a thin convex lens of focal length along its optical axis. When the source is away fr2015 (SA)
  6. 6A girl sees through a circular glass slab(refractive index of thickness and diameter to the bottom of a swimming pol. Refractive index of wa2015 (SA)
  7. 7If the axis of rotation of the earth were extended into space then it would pass close to2015 (SA)
  8. 8A light bulb of resistance is attached in series with an infinite resistor network. with identical resistances as shown below. A battery der2015 (SA)
  9. 9A hollow tilted cylindrical vessel of negligible mass rests on a horizontal plane as known. The diameter of the base is a and the side of th2015 (SA)
  10. 10of ice at is mixed with of water at . Assuming that there is no loss of energy to the environment, what will be the final temperature of the2015 (SA)
  11. 11A rigid body in the shape of a "V" has two equal arms made of uniform rods. What must the angle between the two rods be so that when the bod2015 (SA)
  12. 12Stoke's law states that the viscous drag force experience by a sphere of radius a, moving with a speed through a fluid with coefficient of v2015 (SA)
  13. 13The beta particles of a radioactive metal originate from.2015 (SA)
  14. 14A point object is placed left of a convex lens of focal length (see the figure). The lens is made to oscillate with small amplitude A along 2015 (SA)
  15. 15A planet is orbiting the sun in an elliptical orbit. Let denote the potential energy and denote the kinetic energy of the planet at an arbit2015 (SA)
  16. 16The international space station is maintained in a nearly circular orbit with a mean altitude of and a maximum of . An astronaut is floating2015 (SA)
  17. 17An optical device is constructed by fixing three identical convex lenses of focal lengths each inside a hollow tube at equal spacing of each2015 (SA)
  18. 18Methane is a greenhouse gas because2015 (SA)
  19. 19An isosceles glass prism with angles is clamped over a tray of water in a position such that the base is just dipped in water. A ray of ligh2015 (SA)
  20. 20A ball is launched from the top of Mt. Everest which is at elevation of . The ball moves in circular orbit around earth. Acceleration due to2015 (SA)

Frequently Asked Questions

1.How many questions are in the KVPY 2015 SA paper?

This paper has 60 questions in total - 20 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.Where can I find the SB/SX paper for the same year?

The KVPY 2015 SB/SX paper is listed separately - you can switch to it from the "KVPY Paper Wise PYQs" panel, under KVPY 2015.

4.How is the KVPY 2015 SA paper structured?

The KVPY 2015 SA paper on MARKS has 60 questions, organised by subject:

  • Chemistry: 20 questions - 20 single-correct.
  • Mathematics: 20 questions - 20 single-correct.
  • Physics: 20 questions - 20 single-correct.
5.Which chapters were asked the most in the KVPY 2015 SA paper?

The chapters with the most questions in each subject were:

  • Chemistry: Carboxylic Acid Derivatives (3), Some Basic Concepts of Chemistry (3), and Electrochemistry (2).
  • Mathematics: Basic of Mathematics (9), Permutation Combination (3), and Straight Lines (2).
  • Physics: Ray Optics (5), Gravitation (4), and Center of Mass Momentum and Collision (2).
6.Where can I find the solutions for the KVPY 2015 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 2015 SA paper to check my preparation?

Set a timer, attempt the 60 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.