MDCAT Chemistry MCQ #22

A student adds Lucas reagent to a test tube containing 2-methyl-2-propanol at room temperature. What is the most likely observation?

MDCAT Chemistry MCQ #22

  1. Question 1

    Q1. A student adds Lucas reagent to a test tube containing 2-methyl-2-propanol at room temperature. What is the most likely observation?

    • A) No reaction at room temperature
    • B) Oily layer forms after 10 minutes
    • C) Oily layer forms immediately
    • D) Oily layer forms only upon heating

    Answer: Oily layer forms immediately

    Explanation: Tertiary alcohols like 2-methyl-2-propanol react instantly with Lucas reagent, while secondary alcohols take five to ten minutes to react.