Bimolecular Nucleophilic Substitution Reaction

[Ethan_Kato_1D]

How do you tell if the rate limiting step is a second order reaction, thus a bimolecular nucleophilic substitution reaction?

[Chem_Mod]

You look at the mechanism.

[Gisselle Cervantes 2G]

Do bimolecular nucleophilic substitution reactions occur only in one step?

[Chem_Mod]

If a reaction occurs via a SN2 mechanism, that by definition means it is a bimolecular nucleophilic substitution reaction that occurs in one step.