Q. Arrange the following compounds in the increasing order of their boiling points.

 176  156 Aldehydes Ketones and Carboxylic Acids Report Error

Solution:

The boiling point of butan- would be highest, due to extensive intermolecular hydrogen bonding. Butanal is more polar than ethoxyethane. The intermolecular dipole-dipole attraction is stronger in the butanal. -pentane molecules have only weak van der Waals'forces. The increasing order of boiling point of the given compounds are