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KVPY 2011 SA

Browse the complete Chemistry, Mathematics, and Physics question set from the KVPY 2011 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. 1In the following set of aromatic compounds the correct order of reactivity toward Friedel-Crafts alkylation is2011 (SA)
  2. 2An aqueous buffer is prepared by adding of acetic acid to of of sodium acetate. If of acetic acid is , the of the buffer is2011 (SA)
  3. 3At in the reaction , the molar concentrations ) of and HI at some instant of time are and , respectively. If the equilibrium constant is 46 2011 (SA)
  4. 4Among the compound which is not aromatic is2011 (SA)
  5. 5When chlorine gas is passed through an aqueous solution of , the solution turns orange brown due to the formation of2011 (SA)
  6. 6The set of principal (n), azimuthal and magnetic quantum numbers that is not allowed for the electron in -atom is2011 (SA)
  7. 7The number of bond(s) in and , respectively, is2011 (SA)
  8. 8The gas produced from thermal decomposition of is2011 (SA)
  9. 9As isolated box, equally partitioned contains two ideal gases and as shown When the partition is removed, the gases mix. The changes in enth2011 (SA)
  10. 10A compound that shows positive iodoform test is2011 (SA)
  11. 11Among (i) , (ii) , (iii) , (iv) the complex which is diamagnetic is2011 (SA)
  12. 12Two balloons A and B containing mole and mole of helium at room temperature and , respectively, are connected. When equilibrium is establish2011 (SA)
  13. 13In the conversion of zinc ore to zinc metal, the process of roasting involves.2011 (SA)
  14. 14In the following reaction sequence, and , respectively are2011 (SA)
  15. 15The major product formed in the reaction is2011 (SA)
  16. 16Among the following compounds 2,3 - dimethylhexane is2011 (SA)
  17. 17At , assuming ideal behaviour, the average kinetic energy of a deuterium molecule is2011 (SA)
  18. 18After 2 hours the amount of a certain radioactive substance reduces to of the original amount (the decay process follows first-order kinetic2011 (SA)
  19. 19The maximum number of structural isomers possible for the hydrocarbon having the molecular formula , is2011 (SA)
  20. 20The solubility curve of in water is shown below. The amount of that dissolves in of water at is closest to2011 (SA)

Mathematics

  1. 1Let a, b, be real numbers such that and . Then the set of all possible values of ay is -2011 (SA)
  2. 2There are 30 questions in a multiple -choice test. A student gets 1 mark for each unattempted question, 0 mark for each wrong answer and 4 m2011 (SA)
  3. 3In the adjoining figure . If , then2011 (SA)
  4. 4Consider an incomplete pyramid of balls on a square base having 18 layers; and having 13 balls on each side of the top layer. Then the total2011 (SA)
  5. 5If , then is -2011 (SA)
  6. 6Three taps A, B, C fill up a tank independently in , respectively. Initially the tank is empty and exactly one pair of taps is open during e2011 (SA)
  7. 7A piece of paper in the shape of a sector of a circle (see Fig. 1) is rolled up to form a right-circular cone (see Fig. 2). The value of the2011 (SA)
  8. 8Let , where are integers. Suppose , and for some integer . Then the value of is2011 (SA)
  9. 9A frog is presently located at the origin in the xy-plane. It always jumps from a point with integer coordinates to a point with integer coo2011 (SA)
  10. 10Suppose are three distinct real numbers. Let . When simplified, becomes2011 (SA)
  11. 11Below are four equations in . Assume that . Which of the following has the largest solution for ?2011 (SA)
  12. 12The number of distinct prime divisors of the number is2011 (SA)
  13. 13Two friends and are apart and they start simultaneously on motorcycles to meet each other. The speed of A is 3 times that of B. The distance2011 (SA)
  14. 14Three circles each of radius 1 , touch one another externally and they lie between two parallel lines. The minimum possible distance between2011 (SA)
  15. 15Let be a triangle with . Let be the bisector of with on . Suppose and the area of the triangle is . Then the length of in is equal to2011 (SA)
  16. 16The expression lies in the interval2011 (SA)
  17. 17A certain 12 -hour digital clock displays the hour and the minute of a day. Due to a defect in the clock whenever the digit 1 is supposed to2011 (SA)
  18. 18A man wants to reach a certain destination. One-sixth of the total distance is muddy while half the distance is tar road. For the remaining 2011 (SA)
  19. 19Let be real numbers such that . Then the sum of all possible values of is2011 (SA)
  20. 20The diameter of one of the bases of a truncated cone is . If the diameter of this base is increased by such that it still remains a truncate2011 (SA)

Physics

  1. 1A juggler tosses a ball up in the air with initial speed . At the instant it reaches its maximum height , he tosses up a second ball with th2011 (SA)
  2. 2A nucleus of lead emits two electrons followed by an alpha particle. The resulting nucleus will have2011 (SA)
  3. 3Two charges and are located at points A and on a horizontal line as shown below The electric field is zero at a point which is located at a 2011 (SA)
  4. 4A cylindrical copper rod has length and resistance . If it is melted and formed into another rod of length , the resistance will be2011 (SA)
  5. 5A convex lens is used to form an image of an object on a screen. If the upper half of the lens is blackened so that it becomes opaque, then2011 (SA)
  6. 6The number of air molecules in a room at standard temperature and pressure is of the order of2011 (SA)
  7. 7A body of moves along the positive -axis under the influence of a varying force (in Newtons) as shown below. If the speed of the object at i2011 (SA)
  8. 8Light enters an isosceles right triangular prism at normal incidence through face and undergoes total internal reflection at face as shown b2011 (SA)
  9. 9We sit in the room with windows open. Then2011 (SA)
  10. 10A girl standing at point on a beach wishes to reach a point in the sea as quickly as possible. She can run at on the beach and swim at in th2011 (SA)
  11. 11In the following circuit, the resistor dissipates power . If the resistor is replaced by , the power dissipated in it is2011 (SA)
  12. 12A student sees the top edge and the bottom center of a pool simultaneously from an angle above the horizontal as shown in the figure. The re2011 (SA)
  13. 13A simple pendulum oscillates freely between points A and B. We now put a peg (nail) at some point as shown. As the pendulum moves from A to 2011 (SA)
  14. 14An object with uniform density is attached to a spring that is known to stretch linearly with applied force as shown below. When the spring-2011 (SA)
  15. 15In a thermally isolated system, two boxes filled with an ideal gas are connected by a valve. When the valve is in closed position, states of2011 (SA)
  16. 16Figure below shows a portion of an electric circuit with the currents in amperes and their directions. The magnitude and direction of the cu2011 (SA)
  17. 17A small child tries to moves a large rubber toy placed on the ground. The toy does not move but gets deformed under her pushing force which 2011 (SA)
  18. 18A motor drivers a pump which lifts 300 litres of water per minute to a height of 6 meters. The efficiency of the motor is nearly (take accel2011 (SA)
  19. 19The following three objects (1) a metal tray, (2) a block of wood, and (3) a woolen cap are left in a closed room overnight. Next day the te2011 (SA)
  20. 20On a horizontal frictionless frozen lake, a girl (36 kg) and a box (9 kg) are connected to each other by means of a rope. Initially they are2011 (SA)

Frequently Asked Questions

1.How many questions are in the KVPY 2011 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 2011 SB/SX paper is listed separately - you can switch to it from the "KVPY Paper Wise PYQs" panel, under KVPY 2011.

4.How is the KVPY 2011 SA paper structured?

The KVPY 2011 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 2011 SA paper?

The chapters with the most questions in each subject were:

  • Chemistry: Hydrocarbons (3), States of Matter (3), and General Organic Chemistry (2).
  • Mathematics: Basic of Mathematics (7), Quadratic Equation (3), and Application of Derivatives (2).
  • Physics: Current Electricity (3), Motion In One Dimension (3), and Ray Optics (3).
6.Where can I find the solutions for the KVPY 2011 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 2011 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.