MDCAT Chemistry MCQ #72

Four isomers of butanol are compared for their physical properties. Which isomer is expected to have the lowest boiling point due to branching?

MDCAT Chemistry MCQ #72

  1. Question 1

    Q1. Four isomers of butanol are compared for their physical properties. Which isomer is expected to have the lowest boiling point due to branching?

    • A) 2-Methyl-2-propanol
    • B) 1-Butanol
    • C) 2-Butanol
    • D) Isobutanol

    Answer: 2-Methyl-2-propanol

    Explanation: Branching decreases the surface area of the molecule, leading to weaker London dispersion forces and a lower boiling point than straight chains.