MDCAT Chemistry MCQ #328

In the presence of dry HCl gas, ethanal reacts with an excess of ethanol. What is the final organic product of this comparison between intermediate and final stages?

MDCAT Chemistry MCQ #328

  1. Question 1

    Q1. In the presence of dry HCl gas, ethanal reacts with an excess of ethanol. What is the final organic product of this comparison between intermediate and final stages?

    • A) Hydrate
    • B) Cyanohydrin
    • C) Acetal
    • D) Oxime

    Answer: Acetal

    Explanation: Acid-catalyzed addition of alcohols to aldehydes initially forms a hemiacetal, which then reacts with a second alcohol molecule to form a stable acetal.