Why are the boiling points of aldehydes and ketones lower than those of alcohols with similar molecular masses, and what type of interactions are absent in aldehydes and ketones?

The boiling points of aldehydes and ketones are lower than those of alcohols with similar molecular masses due to the absence of strong hydrogen bonding in aldehydes and ketones. While aldehydes and ketones can form hydrogen bonds, the presence of an -OH group in alcohols allows for stronger hydrogen bonding. The O-H bond in alcohols is more polar and can form more significant hydrogen bonds compared to the C=O bond in aldehydes and ketones. The absence of the strong O-H hydrogen bond interaction in aldehydes and ketones results in lower boiling points compared to alcohols of similar molecular masses.