Is an electrophilic aromatic substitution SN1 or SN2? Organic Chemistry Nucleophilic Substitution Reactions (SN1 and SN2) and Elimination Reactions (E1 and E2) Choosing between SN1 and SN2 1 Answer Ernest Z. Jan 14, 2017 It is neither. Explanation: It has its own name: #"S"_"E""Ar"#, for #bb"S"#ubstitution, #bb"E"#lectrophilic, #bb"Ar"#omatic. Answer link Related questions What factors determine whether an alkyl halide will undergo an SN1 or an SN2 reaction? What factors affect SN2 reactions? Are SN1 reactions faster in polar solvents? How are SN1 and SN2 reactions different? How can I determine SN2 or SN1? Are SN1 reactions faster than SN2? Why do solvents with low dielectric constants favor SN2 reactions? Why do polar protic solvents have little effect upon SN2 reactions? Does the solvent determine whether an alkyl halide will undergo an SN1 or an SN2 reaction? Why do primary alkyl halides generally undergo SN2 mechanisms? See all questions in Choosing between SN1 and SN2 Impact of this question 3796 views around the world You can reuse this answer Creative Commons License