Practicing Success

Target Exam

CUET

Subject

Chemistry

Chapter

Organic: Aldehydes, Ketones and Carboxylic Acids

Question:

What will be the boiling point of propanal if the boiling points of methoxyethane and propanol are 281 K and 370 K respectively?

Options:

273K

281K

322K

370K

Correct Answer:

322K

Explanation:

The boiling point of aldehydes are higher than those of non-polar hydrocarbons of comparable molecular masses. However, their boiling points are lower than comparable alcohols, due to the absence of intermolecular hydrogen bonding.