Practicing Success

Target Exam

CUET

Subject

Chemistry

Chapter

Organic: Aldehydes, Ketones and Carboxylic Acids

Question:
What is the reason for the large difference in the boiling points of butanal and butan-1-ol?
Options:
Intermolecular hydrogen bonding in butanal
Intermolecular hydrogen bonding in butan-1-ol
Higher molecular mass of butan-1-ol
None of these
Correct Answer:
Intermolecular hydrogen bonding in butan-1-ol
Explanation:
Butanol has a polar O-H bond due to which it shows intermolecular H-bonding which is not possible in the case of butanal due to the absence of a polar bond. Hence, butanal has a higher boiling point than butan-1-ol.