Question

Aldehydes and ketones have lower boiling points than corresponding alcohols and acids . Explain .​

Answer 1

Answer:

Alcohol Contains An OH Group Allowing For Hydrogen Bonding Which Is Stronger Than Other Intermolecular Forces.Aldehydes And KetonesHave C=O But No H Bond To The Oxygen (Therefore No Hydrogen Bonding).Aldehydes And Ketones Are Polar Due To This C=O Bond And Therefore It Has Stronger Intermolecular Forces Than Hydrocarbons Making Their Boiling Points Higher.

Answer 2

$\huge\textcolor{green}{\texttt{Answer :-}}$

Both alcohols and acids involve intermolecular hydrogen bonding. But no intermolecular H - bonding occur in aldehydes and ketones.

Therefore, attractive forces in aldehydes and ketones are lesser/weaker than acids and alcohols. Hence, lesser energy is required to break the attractive forces in aldehydes and ketones and thus they have low boiling points(low boiling point = less energy to break the attractive forces).