MDCAT Chemistry MCQ #355

Based on the electronic and steric effects, which of the following represents the correct decreasing order of reactivity towards nucleophilic addition?

MDCAT Chemistry MCQ #355

  1. Question 1

    Q1. Based on the electronic and steric effects, which of the following represents the correct decreasing order of reactivity towards nucleophilic addition?

    • A) Propanone > Ethanal > Methanal
    • B) Ethanal > Propanone > Methanal
    • C) Methanal > Propanone > Ethanal
    • D) Methanal > Ethanal > Propanone

    Answer: Methanal > Ethanal > Propanone

    Explanation: Formaldehyde is the most reactive due to lack of electron-donating alkyl groups and minimal steric hindrance. Higher ketones are the least reactive.