MDCAT Chemistry MCQ #562

Optically active 2-bromobutane reacts with aqueous KOH via a single-step concerted mechanism. What is the stereochemical outcome of this specific chemical transformation?

MDCAT Chemistry MCQ #562

  1. Question 1

    Q1. Optically active 2-bromobutane reacts with aqueous KOH via a single-step concerted mechanism. What is the stereochemical outcome of this specific chemical transformation?

    • A) Complete racemization
    • B) Retention of configuration
    • C) Walden inversion
    • D) Partial racemization

    Answer: Walden inversion

    Explanation: SN2 reactions proceed with 100% inversion of configuration. Racemization is tempting but only occurs in SN1 mechanisms involving carbocation intermediates.