Question

Which of the following is/are responsible for the higher boiling points of aldehydes and ketones compared to ethers and hydrocarbons of comparable molecular mass?

• A. Intermolecular dipole-dipole interactions between opposite ends of $C=O$ dipoles.
• B. Intermolecular hydrogen bonds.
• C. Dipole induced dipole interactions.
• D. All of these.

Answer 1

The correct option is A Intermolecular dipole-dipole interactions between opposite ends of $C=O$ dipoles.

Intermolecular dipole-dipole interactions between opposite ends of $C=O$ dipoles are responsible for the higher boiling points of aldehydes and ketones compared to ethers and hydrocarbons of comparable molecular mass.