If the molecularity of an elementary reaction is two whereas

Last updated: 7/3/2023

If the molecularity of an elementary reaction is two whereas its order is one then the reaction is known as O Second order reaction Pseudo first order reaction O Pseudo unimolecular reaction Both 2 and 3 SEUDO FIRST ORDER REACTION For an elementary chemical reaction the order is same as molecularity In several reactions the order is different from molecularity This is particularly the case when one of the reactants is present in large excess The molecularity of acidic hydrolysis of sucrose and ester is two where as its order is one So such reactions coudo first order reaction