MDCAT Chemistry MCQ #366

Lower aldehydes like formaldehyde and acetaldehyde are highly soluble in water. What is the primary chemical reason for this solubility trend in aqueous environments?

MDCAT Chemistry MCQ #366

  1. Question 1

    Q1. Lower aldehydes like formaldehyde and acetaldehyde are highly soluble in water. What is the primary chemical reason for this solubility trend in aqueous environments?

    • A) Presence of a methyl group
    • B) Low molecular mass only
    • C) Formation of ionic bonds
    • D) Hydrogen bonding with water

    Answer: Hydrogen bonding with water

    Explanation: Aldehydes have polar carbonyl groups allowing hydrogen bonding with water; alkanes are non-polar and cannot form such bonds, making them insoluble.