MDCAT Chemistry MCQ #669

Tertiary butyl bromide reacts with aqueous KOH to form an alcohol. Which factor specifically determines the rate of this unimolecular substitution reaction?

MDCAT Chemistry MCQ #669

  1. Question 1

    Q1. Tertiary butyl bromide reacts with aqueous KOH to form an alcohol. Which factor specifically determines the rate of this unimolecular substitution reaction?

    • A) Concentration of KOH
    • B) Concentration of tertiary butyl bromide
    • C) Surface area of the vessel
    • D) Volume of the solvent

    Answer: Concentration of tertiary butyl bromide

    Explanation: SN1 reaction rates depend only on the concentration of the alkyl halide. KOH concentration is tempting but only affects the rate of SN2.