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KVPY 2018 SA

Browse the complete Chemistry, Mathematics, and Physics question set from the KVPY 2018 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. 1A container of volume 2 . 24 L can with stand a maximum pressure of 2 atm at 298 K before exploding. The maximum amount of nitrogen (in g ) 2018 (SA)
  2. 2The compound shown below can be readily prepared by Friedel-Craft's reaction between2018 (SA)
  3. 3The solubility of B a S O 4 in pure water (in g L - 1 ) is closest to Given; K sp for B a S O 4 is 1 . 0 10 - 10 at 25 C . Molecular weight 2018 (SA)
  4. 4The number of water molecules in 250 m L of water is closest to [Given, density of water is 1 . 0 g m L - 1 ; Avogadro s number = 6 . 023 102018 (SA)
  5. 5Among the following, the correct statement is2018 (SA)
  6. 6Among the following, the incorrect statement is2018 (SA)
  7. 7The correct statement about the following compounds is2018 (SA)
  8. 8The chlorine atom of the following compound that reacts most readily with AgNO 3 to give a precipitate is2018 (SA)
  9. 9The most acidic proton and the strongest nucleophilic nitrogen in the following compound respectively, are2018 (SA)
  10. 10Among the following sets, the most stable ionic species are2018 (SA)
  11. 11A filter paper soaked in salt X turns brown when exposed to HNO 3 vapor. The salt X is2018 (SA)
  12. 12The quantity of heat (in J ) required to raise the temperature of 1 . 0 k g of ethanol from 293 . 45 K to the boiling point and then change 2018 (SA)
  13. 13The lower stability of ethyl anion compared to methyl anion and the higher stability of ethyl radical compared to methyl radical, respective2018 (SA)
  14. 14The hybridisation of xenon atom in XeF 4 is2018 (SA)
  15. 15A solution of 20 . 2 g of 1 , 2 -dibromopropane in M e O H upon heating with excess Z n produces 3 . 58 g of an unsaturated compound X . The2018 (SA)
  16. 16The correct order of energy of 2 s -orbitals in H , L i , N a and K , is2018 (SA)
  17. 17Among the following, the species with identical bond order are2018 (SA)
  18. 18The formal oxidation numbers of C r and C l in the ions Cr 2 O 7 2 - and C l O 3 - , respectively are2018 (SA)
  19. 19The role of haemoglobin is to2018 (SA)
  20. 20The F - B r - F bond angles in B r F 5 and the C l - P - C l bond angles in P C l 5 , respectively, are2018 (SA)
  21. 21If the H + concentration of an aqueous solution is 0 . 001 M , , then the pOH of the solution would be2018 (SA)

Mathematics

  1. 1The number of pairs ( a , b ) of positive real numbers satisfying a 4 + b 4 1 and a 2 + b 2 1 is2018 (SA)
  2. 2The number of real roots of the polynomial equation x 4 - x 2 + 2 x - 1 = 0 is2018 (SA)
  3. 3The median of all 4 - digit numbers that are divisible by 7 is2018 (SA)
  4. 4The number of polynomials p ( x ) with integer coefficients such that curve y = p ( x ) passes through ( 2 , 2 ) and ( 4 , 5 ) is2018 (SA)
  5. 5Suppose the sum of the first m terms of an arithmetic progression is n and the sum of its first n terms is m where m n . Then, the sum of th2018 (SA)
  6. 6Consider the following two statements I . Any pair of consistent liner equations in two variables must have a unique solution. II . There do2018 (SA)
  7. 7Let a , b , c be the side-length of a triangle and l , m , n be the lengths of its medians. Put K = l + m + n a + b + c Then, as a , b , c v2018 (SA)
  8. 8Consider a P Q R in which the relation Q R 2 + P R 2 = 5 P Q 2 holds. Let G be the point of intersection of medians P M and Q N . Then, Q G 2018 (SA)
  9. 9Let P Q R be an acute-angled triangle in which P Q Q R . From the vertex Q draw the altitude Q Q 1 the angle bisector Q Q 2 and the median Q2018 (SA)
  10. 10A 100 mark examination was administered to a class of 50 students. Despite only integer marks being given, the average score of the class wa2018 (SA)
  11. 11Let x 0 , y 0 be fixed real numbers such that x 0 2 + y 0 2 1 . If x , y are arbitrary real numbers such that x 2 + y 2 1 , then the minimum2018 (SA)
  12. 12Let P Q R be a triangle is which P Q = 3 . From the vertex R , draw the altitude R S to meet P Q at S . Assume that R S = 3 and P S = Q R . 2018 (SA)
  13. 13What is the sum of all natural numbers n such that the product of the digits of n (in base 10 ) is equal to n 2 - 10 n - 36 ?2018 (SA)
  14. 14Let m (respectively, n ) be the number of 5 -digit integers obtained by using the digits 1 , 2 , 3 , 4 , 5 with repetitions (respectively, w2018 (SA)

Physics

  1. 1Consider the following vision defects listed in Columns I and II and the corrective measures in Column III. Choose the correct combination. 2018 (SA)
  2. 2A block of wood is floating on water at 0 C with volume V 0 above water. When the temperature of water increases from 0 to 10 C , the change2018 (SA)
  3. 3An earthen pitcher used in summer cools water in it essentially by evaporation of water from its porous surface. If a pitcher carries 4 k g 2018 (SA)
  4. 4A box filled with water has a small hole on its side near the bottom. It is dropped from the top of a tower. As it falls, a camera attached 2018 (SA)
  5. 5Two plane mirrors are kept on a horizontal table making an angle θ with each other as shown schematically in the figure. The angle θ is such2018 (SA)
  6. 6A very large block of ice of the size of a volleyball court and of uniform thickness of 8 m is floating on water. A person standing near its2018 (SA)
  7. 7One can define an alpha-volt ( - V ) to be the energy acquired by an -particle when it is accelerated by a potential of 1 V . For this probl2018 (SA)
  8. 8A certain tiquid has a melting point of - 50 C and a boiling point of 150 C . A thermometer is designed with this liquid and its melting and2018 (SA)
  9. 9A steady current I is set up in a wire whose cross-sectional area decreases in the direction of the flow of the current. Then, as we examine2018 (SA)
  10. 10Many exoplanets have been discovered by the transit method, where in one monitors, a dip in the intensity of the parent star as the exoplane2018 (SA)
  11. 11Which of the following is not true about the total lunar eclipse?2018 (SA)
  12. 12In a particle accelerator, a current of 500 A is carried by a proton beam in which each proton has a speed of 3 10 7 m / s . The cross-secti2018 (SA)
  13. 13Select the correct statement about rainbow.2018 (SA)
  14. 14Remote sensing satellites move in an orbit that is at an average height of about 500 k m from the surface of the earth. The camera onboard o2018 (SA)
  15. 15Letters A , B , C and D are written on a cardboard as shown in the figure below. The cardboard is kept at a suitable distance behind a trans2018 (SA)
  16. 16If a ball is thrown at a velocity of 45 m / s in vertical upward direction, then what would be the velocity profile as function of height? (2018 (SA)
  17. 17A glass beaker is filled with water up to 5 c m . It is kept on top of a 2 c m thick glass slab. When a coin at the bottom of the glass slab2018 (SA)
  18. 18A person in front of a mountain is beating a drum at the rate of 40 per minute and hears no distinct echo. If the person moves 90 m closer t2018 (SA)
  19. 19A potential is given by V ( x ) = k ( x + a ) 2 / 2 for x 0 and V ( x ) = k ( x - a ) 2 / 2 for x 0 . The schematic variation of oscillation2018 (SA)
  20. 20A proton of mass m and charge e is projected from a very large distance towards an -particle with velocity v . Initially -particle is at res2018 (SA)
  21. 21A coffee maker makes coffee by passing steam through a mixture of coffee powder, milk and water. If the steam is mixed at the rate of 50 g p2018 (SA)

Frequently Asked Questions

1.How many questions are in the KVPY 2018 SA paper?

This paper has 56 questions in total - 21 from Chemistry, 14 from Mathematics, and 21 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 2018 SB/SX paper is listed separately - you can switch to it from the "KVPY Paper Wise PYQs" panel, under KVPY 2018.

4.What is the structure of the KVPY 2018 SA paper?

The KVPY 2018 SA paper on MARKS has 56 questions, organised by subject:

  • Chemistry: 21 questions - 21 single-correct.
  • Mathematics: 14 questions - 14 single-correct.
  • Physics: 21 questions - 21 single-correct.
5.Which chapters had the most questions in the KVPY 2018 SA paper?

The chapters with the most questions in each subject were:

  • Chemistry: General Organic Chemistry (5), Ionic Equilibrium (3), and p Block Elements (Group 15, 16, 17 & 18) (3).
  • Mathematics: Properties of Triangles (4), Quadratic Equation (3), and Statistics (2).
  • Physics: Ray Optics (6), Thermal Properties of Matter (4), and Electrostatics (2).
6.Where can I find the solutions for the KVPY 2018 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 2018 SA paper to check my preparation?

Set a timer, attempt the 56 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.