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KVPY 2020 SA

Browse the complete Chemistry, Mathematics, and Physics question set from the KVPY 2020 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. 1Among the following. the compounds which can exhibit optical. activity are :2020 (SA)
  2. 2The acidity of Follows the order2020 (SA)
  3. 3A molecule which has 1 , 2 and 3 carbon atoms is :2020 (SA)
  4. 4The organic compound which can be purified by steam distillation is :2020 (SA)
  5. 5Among the following, the most acidic compound is :2020 (SA)
  6. 6A certain metal has a work function of = 2 eV . It is irradiated first with 1 W of 400 nm light and later with 1 W of 800 nm light. Among th2020 (SA)
  7. 7Among the following, the correct statement about the chemical equilibrium is.2020 (SA)
  8. 8A closed 10 L vessel contains 1 L water gas 1 : 1 CO : H 2 and 9 L air ( 20 % O 2 by volume) at STP . The contents of the vessel are ignited2020 (SA)
  9. 9Among the following, the plot that shows the correct marking of most probable velocity V MP , average velocity V , and root mean square velo2020 (SA)
  10. 10A thermodynamic cycle in the pressure P -volume V plane is given below: AB and CD are isothermal processes while BC and DA are adiabatic pro2020 (SA)
  11. 11The correct set of quantum numbers for the unpaired electron of Cu atom is :2020 (SA)
  12. 12Among the following, the correct statement is :2020 (SA)
  13. 13The covalent characters of CaCl 2 BaCl 2 , SrCl 2 and MgCl 2 follow the order :2020 (SA)
  14. 14Among the following, the most polar molecule is :2020 (SA)
  15. 15The first ionization potential IP of the elements Na , Mg , Si , P , Cl and Ar are 5 . 14 , 7 . 65 , 8 . 15 10 . 49 , 12 . 97 and 15 . 76 eV2020 (SA)
  16. 16A hydrocarbon X with molecular formula C 4 H 6 decolorizes bromine water and forms a white precipitate in ethanolic AgNO 3 solution Treatmen2020 (SA)
  17. 170 . 102 g of an organic compound X was oxidized with fuming nitric acid. The resulting solution, after reaction with an excess of aqueous Ba2020 (SA)
  18. 18The isotherms of a gas are shown below : Among the following, (i) At T 1 , the gas cannot be liquefied (ii) At point B , liquid starts to ap2020 (SA)
  19. 19Strength of a H 2 O 2 solution is labeled as 1 . 79 N . Its strength can also be expressed as closest to2020 (SA)
  20. 20The specific heat of a certain substance is 0 . 86 J g - 1 K - 1 . Assuming ideal solution behavior, the energy required (in J ) to heat 10 2020 (SA)

Mathematics

  1. 1Let x be the greatest integer less than or equal to x , for a real number x . Then the equation x 2 = x + 1 has2020 (SA)
  2. 2Let p 1 x = x 3 - 2020 x 2 + b 1 x + c 1 and p 2 x = x 3 - 2021 x 2 + b 2 x + c 2 be polynomials having two common roots and . Suppose there2020 (SA)
  3. 3Let A , B , C be three points on a circle of radius 1 such that A C B = 4 . Then the length of the side A B is2020 (SA)
  4. 4Let x and y be two positive real numbers such that x + y = 1 . Then the minimum value of 1 x + 1 y is-2020 (SA)
  5. 5The number of ordered pairs x , y of positive integers satisfying 2 x + 3 y = 5 x y is2020 (SA)
  6. 6If the integers from 1 to 2021 are written as a single integer like 123 91011 20202021 , then the 2021 st digit (counted from the left) in t2020 (SA)
  7. 7In a triangle A B C , a point D is chosen on B C such that B D : D C = 2 : 5 . Let P be a point on the circumcircle A B C such that P D B = 2020 (SA)
  8. 8In a triangle A B C , the altitude A D and the median A E divide A into three equal parts. If B C = 28 , then the nearest integer to A B + A2020 (SA)
  9. 9Let x be the greatest integer less than or equal to x , for a real number x . Then the following sum 2 2020 + 1 2 2018 + 1 + 3 2020 + 1 3 202020 (SA)
  10. 10Let r be the remainder when 2021 2020 is divided by 2020 2 . Then r lies between2020 (SA)
  11. 11The number of permutations of the letters a 1 , a 2 , a 3 , a 4 , a 5 in which the first letter a 1 does not occupy the first position (from2020 (SA)
  12. 12There are m books in black cover and n books in blue cover, and all books are different. The number of ways these m + n books can be arrange2020 (SA)
  13. 13Let A B C be a triangle such that A B = 4 , B C = 5 and C A = 6 . Choose points D , E , F on A B , B C , C A respectively, such that A D = 22020 (SA)
  14. 14Let A A denote the set of all 4 -digit natural numbers with no digit being 0 . Let B A consist of all numbers x such that no permutation of 2020 (SA)
  15. 15Consider the following two statements : I. if n is a composite number, then n divides n - 1 ! II. There are infinitely many natural numbers 2020 (SA)

Physics

  1. 1A submarine has a window of area 30 30 cm 2 on its ceiling and is at a depth of 100 m below sea level in a sea. If the pressure inside the s2020 (SA)
  2. 2A mouse jumps off from the 15 th floor of high-rise building and lands 12 m from the building. Assume that each floor is of 3 m height. The 2020 (SA)
  3. 3Consider two wires of same material having their ratio of radii to be 2 : 1 . If these two wires are stretched by equal force, the ratio of 2020 (SA)
  4. 4A spacecraft which is moving with a speed u relative to the earth in the x -direction enters the gravitational field of a much more massive 2020 (SA)
  5. 5Two balls are projected with the same velocity but with different angles with the horizontal. Their ranges are equal. If the angle of projec2020 (SA)
  6. 6The platelets are drifting with the blood flowing in a streamline flow through a horizontal artery as shown below: Artery is contracted in r2020 (SA)
  7. 7Which is the following colourful patterns is due to diffraction of light?2020 (SA)
  8. 8The earth s magnetic field was flipped by 180 a million years ago. This flip was relatively rapid and took 10 5 years. Then the average chan2020 (SA)
  9. 9Figure below shows a shampoo bottle in a perfect cylindrical shape In a simple experiment, the stability of the bottle filled with different2020 (SA)
  10. 10The following graph depicts the inverse of magnification versus the distance between the object and lens data for a setup. The focal length 2020 (SA)
  11. 11A student was trying to construct the circuit shown in the figure below marked (a), but ended up constructing the circuit marked (b). Realiz2020 (SA)
  12. 12In a circus, a performer throws an apple towards a hoop held at 45 m height by another performer standing on a high platform (see figure bel2020 (SA)
  13. 13At a height of 10 km above the surface of earth, the value of acceleration due to gravity is the same as that of a particular depth below th2020 (SA)
  14. 14The ratio of gravitational force and electrostatic repulsive force between two electrons is approximately (gravitational constant = 6 . 7 102020 (SA)
  15. 15A monochromatic beam of light enters a square enclosure with mirrored interior surfaces at an angle of incidence θ i = ( ≠ 0 ) (see the figu2020 (SA)
  16. 16A charge + q is situated at a distance ' d ' away from both the sides of a grounded conducting ' L ' shaped sheet as shown in the figure. Th2020 (SA)
  17. 17Four bulbs; red, green, white and blue (denoted by R , G , W and B respectively) are kept in front of a converging lens (as shown in the fig2020 (SA)
  18. 18Three balls, A , B and C , are released and all reach the point X (shonw in the figure). Balls A and B are released from two identical struc2020 (SA)
  19. 19A small coin is fixed at the center of the base of an empty cylindrical steel container having radius R = 1 m and height d = 4 m . At time t2020 (SA)
  20. 20A wide bottom cylindrical massless plastic container of height 9 cm has 40 identical coins inside it and is floating on water with 3 cm insi2020 (SA)

Frequently Asked Questions

1.How many questions are in the KVPY 2020 SA paper?

This paper has 55 questions in total - 20 from Chemistry, 15 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 2020 SB/SX paper is listed separately - you can switch to it from the "KVPY Paper Wise PYQs" panel, under KVPY 2020.

4.How is the KVPY 2020 SA paper structured?

The KVPY 2020 SA paper on MARKS has 55 questions, organised by subject:

  • Chemistry: 20 questions - 20 single-correct.
  • Mathematics: 15 questions - 15 single-correct.
  • Physics: 20 questions - 20 single-correct.
5.Which chapters were asked the most in the KVPY 2020 SA paper?

The chapters with the most questions in each subject were:

  • Chemistry: General Organic Chemistry (4), Some Basic Concepts of Chemistry (3), and Chemical Bonding and Molecular Structure (2).
  • Mathematics: Properties of Triangles (4), Permutation Combination (3), and Functions (2).
  • Physics: Ray Optics (4), Center of Mass Momentum and Collision (2), and Electrostatics (2).
6.Where can I find the solutions for the KVPY 2020 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 2020 SA paper to check my preparation?

Set a timer, attempt the 55 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.