MDCAT Chemistry MCQ #595

Which specific structural feature characterizes the transition state of an SN2 reaction involving a primary alkyl halide and a hydroxide ion?

MDCAT Chemistry MCQ #595

  1. Question 1

    Q1. Which specific structural feature characterizes the transition state of an SN2 reaction involving a primary alkyl halide and a hydroxide ion?

    • A) Formation of a stable carbocation
    • B) Two-step mechanism
    • C) Pentacoordinate transition state
    • D) Partial racemization of products

    Answer: Pentacoordinate transition state

    Explanation: SN2 involves a single-step transition state where the carbon is bonded to five groups (pentacoordinate), showing 100% inversion of configuration.