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Chemistry - Chemical Kinetics

Practise 33 MHT-CET (PCB) previous year questions on Chemical Kinetics, compiled from papers in 2026. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty MHT-CET (PCB) tests.

Chemical Kinetics has been asked in 1 of the 1 years of MHT-CET (PCB) papers analysed (2026), with 33 questions in all. 73% of them were easy, 27% moderate and 0% tough. Most of its questions came from 2026, with 33 questions that year. In 2026 it had 33 questions across 11 papers, about 3 per paper.

The chapter's 5 topics are not weighted equally: Rate law and rate constant (15 questions, 45%), Integrated rate laws (12 questions, 36%), and Rate of reaction (4 questions, 12%) have been asked the most.

  1. 1For the reaction , What is order and molecularity of the reaction respectively ?26 Apr, 2026 (M)Rate law and rate constant
  2. 2For a first order reaction, (A) Products, the concentration of A changes from M to M in minutes. The rate of reaction when the concentration26 Apr, 2026 (M)Rate law and rate constant
  3. 3The decomposition of occurs as: . If initial concentration of is and after seconds it is , calculate the rate of reaction.26 Apr, 2026 (M)Rate of reaction
  4. 4The slope of the graph against time for zero order reaction is25 Apr, 2026 (M)Integrated rate laws
  5. 5A first order reaction takes 90 minutes for 75% decomposition. Calculate its rate constants.25 Apr, 2026 (M)Integrated rate laws
  6. 6The rate constant for the reaction is . Determine the concentration that will remain after 20 minutes if the initial concentration of the re25 Apr, 2026 (M)Integrated rate laws
  7. 7The combination of and occurs in two steps as follows: What is the rate law for the reaction? - slow - fast25 Apr, 2026 (E)Rate law and rate constant
  8. 8If the rate of a first order reaction is at the initial concentration . Find the rate constant in terms of second.25 Apr, 2026 (E)Rate law and rate constant
  9. 9For a reaction Products, the rate law is found to be: Rate . What is the overall order of the reaction?25 Apr, 2026 (E)Rate law and rate constant
  10. 10For the reaction, the rate expression is found to be: rate . What is the order of reaction with respect to CO?24 Apr, 2026 (M)Rate law and rate constant
  11. 11The rate constant for the first order reaction is given by . Calculate the activation energy.24 Apr, 2026 (M)Arrhenius theory
  12. 12Integrated rate law for zero order reaction is24 Apr, 2026 (M)Integrated rate laws
  13. 13Which of the following statements represents rate of reaction?24 Apr, 2026 (E)Rate of reaction
  14. 14Which of the statement is correct regarding the half-life of a first-order reaction?24 Apr, 2026 (E)Integrated rate laws
  15. 15What is the order of reaction for the following?24 Apr, 2026 (E)Integrated rate laws
  16. 16An increase in the concentration of the reactants of a reaction leads to a change in23 Apr, 2026 (M)Rate of reaction
  17. 17For an elementary reaction, , if If the volume of a vessel is quickly reduced to half of its original volume, then the rate of reaction will23 Apr, 2026 (M)Rate law and rate constant
  18. 18For first order reaction, the rate constant for the decomposition of is s . Calculate half life period for decomposition in terms seconds23 Apr, 2026 (M)Integrated rate laws
  19. 19For a reaction, A+B Products, that is a second order reaction. Identify the correct rate expression for reaction from the following.23 Apr, 2026 (E)Rate law and rate constant
  20. 20Find the order of reaction if unit of rate constant is mol dm s .23 Apr, 2026 (E)Rate law and rate constant
  21. 21Identify the molecularity and order of the following elementary reaction, , if rate =23 Apr, 2026 (E)Rate law and rate constant
  22. 22A first order reaction is 50% completed in 10 minutes. Find the percentage of reactant reacting in 20 minutes.22 Apr, 2026 (M)Integrated rate laws
  23. 23A radioactive substance has a decay constant per year. What percentage of substance undergoing decay in 13.86 years . ?22 Apr, 2026 (M)Radioactivity
  24. 24In a first order reaction the initial concentration of reactant decreases to 50% in 100 minutes. how long will it take for 90 % of the react22 Apr, 2026 (M)Integrated rate laws
  25. 25Identify the order of reaction if rate of reaction is independent of the reactant concentration.22 Apr, 2026 (E)Rate law and rate constant
  26. 26The rate law for the reaction, is rate . The rate constant of the reaction is at C. Calculate the rate of the reaction when M and M.22 Apr, 2026 (E)Rate law and rate constant
  27. 27For the reaction, in liquid bromine, the rate of formation of is . What is the rate of disappearance of ?22 Apr, 2026 (E)Rate of reaction
  28. 28For the elementary reaction, products. What is the molecularity of the reaction ?21 Apr, 2026 (M)Rate law and rate constant
  29. 29For the first order reaction, 80 % of the reactant decomposes in 60 minutes. Calculate the half life of the reaction.21 Apr, 2026 (M)Integrated rate laws
  30. 30Which of the following rate law expressions is applicable for hydrolysis of cane sugar?21 Apr, 2026 (M)Rate law and rate constant
  31. 31Which of the following statements is NOT true about the decomposition of ammonia on platinum metal?21 Apr, 2026 (E)Rate law and rate constant
  32. 32What is the half life of a first order reaction if time required to decrease the concentration of reactant from to is minutes?21 Apr, 2026 (E)Integrated rate laws
  33. 33The rate constant for a first order reaction is per minutes. What is the time required for the completion of of the reaction?21 Apr, 2026 (E)Integrated rate laws

Frequently Asked Questions

1.How many questions are available for Chemical Kinetics?

This chapter includes 33 questions compiled from MHT-CET (PCB) papers in 2026.

2.Are these questions only from MHT-CET (PCB), or from other exams too?

These are MHT-CET (PCB) questions specifically for the Chemical Kinetics chapter. Questions from other exams like NEET or AIIMS are organised separately under their respective exam sections.

3.Is Chemical Kinetics an important chapter for MHT-CET (PCB) Chemistry?

Chemical Kinetics has appeared in 1 of the 1 year of MHT-CET (PCB) papers covered here, with 33 questions across 11 papers - about 3 per paper it appears in.

4.What is the difficulty level of Chemical Kinetics questions in MHT-CET (PCB)?

Of the 33 questions analysed for this chapter, 73% are easy, 27% moderate and 0% tough. 2026 had the most, with 33 questions.

5.Which topics in Chemical Kinetics should I focus on?

These topics have carried the most weightage in Chemical Kinetics:

  • Rate law and rate constant - 15 questions (45%)
  • Integrated rate laws - 12 questions (36%)
  • Rate of reaction - 4 questions (12%)
6.Is Chemical Kinetics's weightage in MHT-CET (PCB) going up or down?

Across all 11 papers analysed, Chemical Kinetics has averaged about 3.0 questions per paper. In 2026, that average has stayed about the same, at about 3.0 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.