MDCAT Chemistry MCQ #61

A laboratory technician mixes an unknown alcohol with Lucas reagent at room temperature. No turbidity appears even after 24 hours of standing. Identify the alcohol.

MDCAT Chemistry MCQ #61

  1. Question 1

    Q1. A laboratory technician mixes an unknown alcohol with Lucas reagent at room temperature. No turbidity appears even after 24 hours of standing. Identify the alcohol.

    • A) Tertiary-butanol
    • B) Isopropanol
    • C) 2-Butanol
    • D) Methanol

    Answer: Methanol

    Explanation: Primary alcohols only produce turbidity upon heating with Lucas reagent; methanol is the slowest reacting among them due to its structure.