SN2 Reaction

An SN2 reaction is a type of chemical process where a molecule with a leaving group (like a halogen) is replaced by a new atom or group, happening in one smooth step. The incoming atom approaches from the opposite side of the leaving group, pushing it out as it bonds in. This results in a quick, concerted swap, often changing the molecule’s shape and properties. SN2 reactions are common in organic chemistry, especially for modifying molecules in a controlled and predictable way.