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Chemistry - Chemical Kinetics

Practise 28 KVPY previous year questions on Chemical Kinetics, compiled from papers spanning 2010 to 2020. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty KVPY tests.

  1. 1A nucleus X captures a particle and then emits a neutron and ray to form Y . X and Y are:-2020 (SB/SX)
  2. 2Consider a reaction that is first order in both directions A k b k f B Initially only A is present, and its concentration is A 0 . Assume A 2020 (SB/SX)
  3. 3The plot of concentration of a reactant vs time for a chemical reaction is shown below. The order of this reaction with respect to the react2019 (SA)
  4. 4For a first order chemical reaction,2019 (SB/SX)
  5. 5Thermal decomposition of N 2 O 5 occurs as per the equation below : 2 N 2 O 5 4 NO 2 + O 2 The correct statement is2019 (SB/SX)
  6. 6Consider the following reversible first order reaction of X at an initial concentration X 0 . The values of the rate constants are K f = 2 s2018 (SB/SX)
  7. 7The particle emitted during the sequential radioactive decay of to are19 Nov, 2017 (SB/SX)
  8. 8The consecutive reaction takes place in a closed container. Initially, the container has moles of (and no and ). The plot of total moles of 19 Nov, 2017 (SB/SX)
  9. 9The enthalpy (H) of an elementary exothermic reaction is schematically plotted against the reaction coordinate. The plots in the presence an05 Nov, 2017 (SB/SX)
  10. 10A reaction has an activation energy of . The rate increases 10 -fold when the temperature is increased from to . The temperature is closest 05 Nov, 2017 (SB/SX)
  11. 11has a half-life of 22 years with respect to radioactive decay . The decay follows two parallel paths : and . If the percentage of the two da05 Nov, 2017 (SB/SX)
  12. 12In the radioactive disintegration series , involving and decay, the total number of and particles emitted are2016 (SB/SX)
  13. 13It takes for a first order reaction to go to completion. The total time required for the same reaction to reach completion will be2016 (SB/SX)
  14. 14The rate constant of a chemical reaction at a very high temperature will approach2015 (SB/SX)
  15. 15The Arrhenius plots of two reactions, I and II are shown graphically : The graph suggests that2014 (SB/SX)
  16. 16The decay profiles of three radioactive species and are given below : These profiles imply that the decay constants and follow the order2013 (SA)
  17. 17For a zero-order reaction with rate constant , the slope of the plot of reactant concentration against time is2013 (SB/SX)
  18. 18The following data are obtained for a reaction, Products. The overall order of the reaction is2012 (SB/SX)
  19. 19A zero-ordér reaction, Product, with an initial concentration has a half-life of . If oné starts with thee concentration , then the half=l2012 (SB/SX)
  20. 20Among the following graphs showing variation of rate with temperature (T) for a reaction, the one that exhibits arrhenius behavior over the 2012 (SB/SX)
  21. 21After 2 hours the amount of a certain radioactive substance reduces to of the original amount (the decay process follows first-order kinetic2011 (SA)
  22. 22In a zero-order reaction, if the initial concentration of the reactant is doubled, the time required for half the reactant to be consumed2011 (SB/SX)
  23. 23The rate of gas phase chemical reactions generally increases rapidly with rise in temperature. This is mainly because2011 (SB/SX)
  24. 24At , the ratio of osmotic pressures of two solutions of a substance with concentrations of and , respectively, is2011 (SB/SX)
  25. 25The concentration of a substance undergoing a chemical reaction becomes one-half of its original value after time t regardless of the initia2010 (SB/SX)
  26. 26Increasing the temperature increases the rate of reaction but does not increase the-2010 (SB/SX)
  27. 27Consider the reaction: . In the figure below, identify the curves and associated with the three species in the reaction-2010 (SB/SX)
  28. 28For a first order reaction , the rate constant is . If the initial concentration of is , the concentration of at any time ' ' is given by th2010 (SB/SX)

Frequently Asked Questions

1.How many questions are available for Chemical Kinetics?

This chapter includes 28 questions compiled from KVPY papers spanning 2010 to 2020.

2.Are these questions only from KVPY, or from other exams too?

These are KVPY questions specifically for the Chemical Kinetics chapter. Questions from other exams like JEE Main or NTA Abhyas (JEE Main) are organised separately under their respective exam sections.

3.Is Chemical Kinetics an important chapter for KVPY Chemistry?

Chemical Kinetics has appeared in 11 of the 11 years of KVPY papers covered here, with 28 questions across 15 papers - about 2 per paper it appears in.