What is the meaning of the name #"S"_N2#?

1 Answer
anor277
May 13, 2016

#S_N2" Substitution nucleophilic bimolecular"#

Explanation:

The rate determining step of such a reaction depends on the concentration of both substrates; i.e. it is an associative (bond-making) reaction as opposed to the dissociative (bond-breaking) mechanism of #S_N1" (Substitution nucleophilic unimolecular)"#

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