The number of molecules that react with each other in an elementary reaction is a measure of the :

Assertion (A) : The molecularity of the reaction H₂ + Br₂ → 2HBr appears to be 2. Reason (R) : Two molecules of the reactants are involved in the given elementary reaction.

Assertion-ReasonMolecularity of a Chemical Reaction

Which among the following is a false statement?

MCQ (Single)Order of a Chemical ReactionMolecularity of a Chemical ReactionHalf-Life of Zero Order ReactionsHalf-Life of First Order Reactions

Given below is the decomposition of hydrogen peroxide in alkaline medium, which is catalysed by iodide ions : 2H₂O₂ → 2H₂O + O₂ (I⁻, alkaline medium). The above reaction takes place in two steps : Step I : H₂O₂ + I⁻ → H₂O + IO⁻ (slow). Step II : H₂O₂ + IO⁻ → H₂O + I⁻ + O₂. Molecularity of Step I and Step II is :

MCQ (Single)Molecularity of a Chemical Reaction

Define the following terms :

CASE_STUDIESOrder of a Chemical ReactionMolecularity of a Chemical Reaction