MDCAT Chemistry MCQ #353

When aqueous Formaldehyde is distilled in the presence of a few drops of concentrated sulfuric acid, which cyclic trimer is formed?

MDCAT Chemistry MCQ #353

  1. Question 1

    Q1. When aqueous Formaldehyde is distilled in the presence of a few drops of concentrated sulfuric acid, which cyclic trimer is formed?

    • A) Metaformaldehyde
    • B) Paraformaldehyde
    • C) Paraldehyde
    • D) Bakelite

    Answer: Metaformaldehyde

    Explanation: Distilling Formaldehyde with H2SO4 produces the cyclic trimer Metaformaldehyde. Paraformaldehyde is a linear polymer formed by evaporating the aqueous solution.