Rates Of Chemical Reactions And Chemical Kinetics QUESTIONS AND ANSWERS

IIT JEE : Rates Of Chemical Reactions And Chemical Kinetics QUESTIONS AND ANSWERS :: part1 : 26 to 30

Following IIT JEE Entrance Multiple choice objective type questions and answers will help you in Maths, Physics and Chemistry 2024 examinations :

26.Half-life of a first order reaction is 35 min. The time required to reduce its concentration to 12.5% is

125 min

105 min

50 min

70 min

27.According to collision theory rate of reaction is equal to

no. of collisions between the reactant molecules

no. of effective collisions

no. of collisions

concentration of reactants

28.Which of the following statements is incorrect?

In an endothermic reaction, the activation energy of the reverse reaction is lower than that of the forward reaction

Half-life period of a first order reaction is independent of the final concentration

Reaction with higher activation energy has higher rate constant

The catalyst does not affect the equilibrium of a reaction

29.The half-life period for the first order reaction is

half of the rate constant

same for all reactions

independent of initial concentration

directly proportional to the initial concentration of reacts

More Rates Of Chemical Reactions And Chemical Kinetics QUESTIONS AND ANSWERS available in next pages

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