Which of the following is not true for a pseudo first-order reaction?(a) The reaction follows first order kinetics(b) Molecularity of the reaction should be one(c) The reactants such as water are present in excess and are assumed to be constant throughout the reaction(d) Unit of the rate constant is s^-1I got this question in an online quiz.My query is from Chemical Kinetics in portion Chemical Kinetics of Chemistry – Class 12

Which of the following is not true for a pseudo first-order reaction?(

1.	Which of the following is not true for a pseudo first-order reaction?(a) The reaction follows first order kinetics(b) Molecularity of the reaction should be one(c) The reactants such as water are present in excess and are assumed to be constant throughout the reaction(d) Unit of the rate constant is s^-1I got this question in an online quiz.My query is from Chemical Kinetics in portion Chemical Kinetics of Chemistry – Class 12
Answer» The correct CHOICE is (B) Molecularity of the REACTION should be one To EXPLAIN: The order of the reaction can be sometimes altered by taking one of the REACTANT in excess compared to the other. Pseudo first order reactions are those reactions in which the molecularity is more than one but follows first order kinetics.

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