MDCAT Chemistry MCQ #79

A student is given four colorless liquids and told to identify which one is a phenol using aqueous Ferric Chloride. Which color change confirms phenol?

MDCAT Chemistry MCQ #79

  1. Question 1

    Q1. A student is given four colorless liquids and told to identify which one is a phenol using aqueous Ferric Chloride. Which color change confirms phenol?

    • A) Methanol
    • B) Ethanol
    • C) Phenol
    • D) Cyclohexanol

    Answer: Phenol

    Explanation: Ferric chloride reacts with the hydroxyl group attached to a benzene ring to form a complex, resulting in a characteristic violet or purple color.