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JEE CHEMISTRY MCQ: CHEMICAL KINETICS
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When two reactants and are mixed to give products and , the reaction quotient at the initial stage of the reaction is best described by-
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Correct option: B
Increase with time
Option D (Decrease the degree of ionisation of group reagent) is correct because adding (containing ) decreases the ionization of (a weak base) due to the common ion effect, thus controlling the hydroxide ion concentration.
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The reaction follows the mechanism
The overall order of the reaction is: For the first order reaction with the rate constant , which expression gives the rate half-life period? Which of the following is a zero order reaction? For a certain reaction involving a single reactant, it is found that is constant, where is the initial concentration of the reactant and is the half-life. What is the order of the reaction? Arrhenius equation is The energy of activation for an uncatalysed reaction is Presence of a catalyst lowers the energy of activation by . The of the ratio of rate constant of catalysed and uncatalysed reactions at is?
Assume the frequency factor is same for both reactions. (Given )
The overall order of the reaction is: For the first order reaction with the rate constant , which expression gives the rate half-life period? Which of the following is a zero order reaction? For a certain reaction involving a single reactant, it is found that is constant, where is the initial concentration of the reactant and is the half-life. What is the order of the reaction? Arrhenius equation is The energy of activation for an uncatalysed reaction is Presence of a catalyst lowers the energy of activation by . The of the ratio of rate constant of catalysed and uncatalysed reactions at is?
Assume the frequency factor is same for both reactions. (Given )