PrepWiser › Learn › Chemistry › Chemical KineticsChemical Kinetics — JEE Main PYQs & Practice Questions Chemical Kinetics is a Chemistry chapter in the JEE Main syllabus. This page brings together 147 previous-year and practice questions on Chemical Kinetics, organised into 6 topics: Rate of Reaction, Arrhenius Equation, Mechanisms and Catalysis, Rate Law and Order, Zero and First Order Reactions and Half-Life. Most questions come with a step-by-step solution you can work through free in PrepWiser.
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Rate of Reaction Arrhenius Equation Mechanisms and Catalysis Rate Law and Order The reaction between X and Y is first order with respect to X and zero order with… A person's wound was exposed to some bacteria and then bacterial growth started to… For bacterial growth in a cell culture, growth law is very similar to the law of… Given below are two statements : Statement I : The rate law for the reaction A+B → C is… An organic compound undergoes first order decomposition. The time taken for… A molecule undergoes two independent first order reactions whose respective half lives… For a first order reactionA→ B t/min, [A]/M; 0, 0.6500; x, 0.0650; 20, 0.00065 x= ____… Consider the following gas phase reaction being carried out in a closed vessel at 25°C… If the half life of a first order reaction is 6.93 minutes then the time required for… For the thermal decomposition of reactant AB(g), the following plot is constructed. The… For the reaction 2H₂(g) + 2NO(g) → N₂(g) + 2H₂O(g) the observed rate expression is, rate… For a chemical reaction A+B → Product, the order is 1 with respect to A and B. Rate mol… The reaction 2A + B₂ → 2AB is an elementary reaction. For a certain quantity of… Consider the following reaction, the rate expression of which is given below A+B → C… If 75% of a first order reaction was completed in 90 minutes, 60% of the same reaction… The results given in the below table were obtained during kinetic studies of the… 2NO(g) + Cl₂(g) ⇌ 2NOCl(s) This reaction was studied at -10° and the following data was… The number of incorrect statement/s from the following is ___________ A. The successive… Rate law for a reaction between A and B is given by r=k[ A]ⁿ[ B]ᵐ If concentration of A… Consider the following single step reaction in gas phase at constant temperature. 2… Zero and First Order Reactions Half-Life For the given first order reaction A → B the half life of the reaction is 0.3010 min… [A], →, [B]; Reactant, Product If formation of compound [B] follows the first order of… For the decomposition of azomethane. CH₃N₂CH₃(g) → CH₃CH₃(g) + N₂(g), a first order… The rate of First order reaction is 0.04 mol L⁻¹ s⁻¹ at 10 minutes and 0.03 mol L⁻¹ s⁻¹… A reaction has a half life of 1 min. The time required for 99.9% completion of the… Consider the two different first order reactions given below A+B → C (Reaction 1) ; P →… Sucrose hydrolyses in acidic medium into glucose and fructose by first order rate law… t_(87.5) is the time required for the reaction to undergo 87.5 % completion and t₅₀ is… A flask contains a mixture of compounds A and B. Both compounds decompose by first-order… In a first order decomposition reaction, the time taken for the decomposition of… For the first order reaction A → B, the half life is 30 min. The time taken for 75%… Time required for 99.9 % completion of a first order reaction is _________ times the… At 345 K, the half life for the decomposition of a sample of a gaseous compound… For a first order reaction A → B, the rate constant, k = 5.5 × 10⁻¹⁴ s⁻¹. The time… In a reaction A+B → C, initial concentrations of A and B are related as [A]₀=8[B]₀. The… A and B decompose via first order kinetics with half-lives 54.0 min and 18.0 min… At 30° C, the half life for the decomposition of AB₂ is 200 s and is independent of the… The half life for the decomposition of gaseous compound A is 240 s when the gaseous… For a given reaction R → P, t_(1 / 2) is related to [A]₀ as given in table. Given: log… A flask is filled with equal moles of A and B. The half lives of A and B are 100 s and… More Chemistry chapters Frequently asked questions How many Chemical Kinetics questions are there for JEE Main? PrepWiser has 147 Chemical Kinetics questions for JEE Main, grouped into 6 topics such as Rate of Reaction, Arrhenius Equation and Mechanisms and Catalysis.
Are these Chemical Kinetics questions from previous-year JEE Main papers? Yes — most are genuine previous-year questions from past JEE Main papers, and the rest are practice questions written to match the JEE Main pattern and difficulty.
Where can I see the answers and solutions to these Chemical Kinetics questions? Open any Chemical Kinetics question in PrepWiser (it is free) to attempt it; most come with a step-by-step solution.