Chemistry - Chemical Kinetics
Practise 40 VITEEE previous year questions on Chemical Kinetics, compiled from papers spanning 2006 to 2024. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty VITEEE tests.
Chemical Kinetics has been asked in 18 of the 18 years of VITEEE papers analysed (2006–2024), with 40 questions in all. 50% of them were easy, 45% moderate and 5% tough. Most of its questions came from 2022, with 4 questions that year. In the last three years (2022–2024) it had 7 questions across 3 papers, about 2.3 per paper.
The chapter's 5 topics are not weighted equally: Arrhenius theory (13 questions, 33%), Integrated rate laws (12 questions, 30%), and Rate law and rate constant (7 questions, 18%) have been asked the most. Arrhenius theory has also led over the last five years, with 3 questions. Arrhenius theory has produced the most tough questions (2).
- 1The activation energy for a reaction is . The increase in the rate constant when its temperature is increased from 298 K to 308 K is2024Arrhenius theory
- 2is a first order reaction. The initial concentration of is . After 10 minutes the concentration of is found to be . The rate constant (in ) 2024Rate law and rate constant
- 3The order of a reaction, with respect to one of the reacting component \(Y\), is zero. It implies that:2023Rate law and rate constant
- 4The activation energy for a simple chemical reaction \( {A} {B}\) is \( {E}_{ {a}}\) in forward direction. The activation energy for reverse2022Arrhenius theory
- 5Select the rate law that corresponds to data shown for the following reaction \( {A}+ {B} \) products \( {array}{cccc} { Exp. } & {[ {A}]} &2022Methods to determine order of reaction
- 6A substance 'A' decomposes by a first order reaction starting initially with \([ {A}]=2.00 {~m}\) and after \(200 {~min},[ {~A}]\) becomes \2022Integrated rate laws
- 7For the reaction \( {A}+ {B} {C}+ {D}\). The variation of the concentration of the products is given by the curve2022Rate of reaction
- 8Consider the following statements: I. Increase in concentration of reactant increases the rate of a zero order reaction. II. Rate constant i2021Arrhenius theory
- 9The half-life of a reaction is inversely proportional to the square of the initial concentration of the reactant. Then the order of the reac2021Integrated rate laws
- 10For the reaction if , then value of would be2019Rate of reaction
- 11The reaction is of first order. If volume of reaction vessel is reduced to , the rate of reaction would be2019Rate law and rate constant
- 12The rate constant is doubled when temperature increases from to . Activation energy in is2019Arrhenius theory
- 13For the reaction , rate and rate constant are and respectively then concentration of at that time will be2018Rate law and rate constant
- 14What is order with respect to A, B, C, respectively2018Methods to determine order of reaction
- 15For a first order reaction , the temperature (T) dependent rate constant was found to follow the equation . The pre-exponential factor A and2017Arrhenius theory
- 16The half life period of a first order chemical reaction is minutes. The time required for the completion of of the chemical reaction will be2017Integrated rate laws
- 17The half life of the first order reaction If initial pressure of (g) is and the total pressure at the end of 20 minutes is2017Integrated rate laws
- 18In a reaction Products, when start is made from of , half-life is found to be 120 minute. For the initial concentration , the half-life of t2016Methods to determine order of reaction
- 19A reaction : Products, involves the following mechanism : (fast) ( being the intermediate) Products (slow). The rate law consistent to this 2016Rate law and rate constant
- 20The following data were obtained for a given reaction at . The factor by which rate of catalysed reaction is increased, is2016Arrhenius theory
- 21The concentrations of the reactant in the reacntion at different times are given below The rate constant of the reaction according to the co2015Rate law and rate constant
- 22The half-life of two samples are and . Their respective concentration are 400 and 50 respectively. The order of the reaction is2014Methods to determine order of reaction
- 23Acid hydrolysis of ester is first order reaction and rate constant is given by where, and are the volumle of standard required to neutralise2013Integrated rate laws
- 24Consider the following reaction, The reaction is of first order in each diagram, with an equilibrium constant of . For the conversion of cha2013Arrhenius theory
- 25The unit of rate constant for a zero order reaction is2012Integrated rate laws
- 26In the reversible reaction, the rate of disappearance of is equal to2011Rate of reaction
- 27A chemical reaction was carried out at and . The rate constants were found to be and respectively. Then2011Arrhenius theory
- 28The rate constant of a reaction at temperature is 10 times less than the rate constant at . What is the activation energy of the reaction?2011Arrhenius theory
- 29For a reaction of type products, it is observed that doubling concentration of causes the reaction rate to be four times as great, but doubl2010Methods to determine order of reaction
- 30A chemical reaction wascarried out at and . The rate constants were found to be and respectively. Then2010Arrhenius theory
- 31A radioactive element emits and particles and forms . Element is2010Integrated rate laws
- 32The activity of an old piece of wood is just of the fresh piece of wood. If of is 6000 yr, the age of piece of wood is2010Integrated rate laws
- 33For a first order reaction at , the ratio of time required for completion to completion of reaction is2009Integrated rate laws
- 34If a plot of versus gives a straight line for a given reaction, then the reaction is2008Integrated rate laws
- 35The half life period of a first order reaction is 1 secs. Calculate its rate constant.2008Integrated rate laws
- 36A nuclear reaction of with a neutron produces and two neutrons. Other element produced in this reaction is2007Integrated rate laws
- 37According to Arrhenius equation, the rate constant is related to temperature as2007Arrhenius theory
- 38For the reaction , the equilibrium constant changes with2007Arrhenius theory
- 39The order of the reaction2006Rate law and rate constant
- 40The reactions with low activation energy are always2006Arrhenius theory
Frequently Asked Questions
1.How many questions are available for Chemical Kinetics?
This chapter includes 40 questions compiled from VITEEE papers spanning 2006 to 2024.
2.Are these questions only from VITEEE, or from other exams too?
These are VITEEE 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 VITEEE Chemistry?
Chemical Kinetics has appeared in 18 of the 18 years of VITEEE papers covered here, with 40 questions across 18 papers - about 2 per paper it appears in.
4.What is the difficulty level of Chemical Kinetics questions in VITEEE?
Of the 40 questions analysed for this chapter, 50% are easy, 45% moderate and 5% tough. 2022 had the most, with 4 questions.
5.Which topics in Chemical Kinetics should I focus on?
These topics have carried the most weightage in Chemical Kinetics:
- Arrhenius theory - 13 questions (33%)
- Integrated rate laws - 12 questions (30%)
- Rate law and rate constant - 7 questions (18%)
- Arrhenius theory has produced the most tough questions (2).
6.Is Chemical Kinetics's weightage in VITEEE going up or down?
Across all 18 papers analysed, Chemical Kinetics has averaged about 2.2 questions per paper. In the last three years (2022–2024), that average has stayed about the same, at about 2.3 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.