MDCAT Chemistry MCQ #614

A laboratory technician notes that alkyl iodides turn purple over time when exposed to light. Which process explains this observation?

MDCAT Chemistry MCQ #614

  1. Question 1

    Q1. A laboratory technician notes that alkyl iodides turn purple over time when exposed to light. Which process explains this observation?

    • A) Oxidation
    • B) Photolytic decomposition
    • C) Sublimation
    • D) Polymerization

    Answer: Photolytic decomposition

    Explanation: Light energy is sufficient to break the weak C-I bond, releasing purple iodine gas; oxidation is tempting but the mechanism is homolytic cleavage.