Final answer:
The molecule has a carbonyl functional group, which is a carbon-oxygen double bond. This group is found in aldehydes, ketones, carboxylic acids, and esters. Aldehydes have a hydrogen atom attached to the carbonyl carbon, ketones have carbon groups attached, carboxylic acids have a hydroxyl group attached, and esters have an oxygen atom attached to another carbon group.
Step-by-step explanation:
The molecule has a carbonyl functional group. The carbonyl group is a carbon-oxygen double bond and is the key structure in organic molecules such as aldehydes, ketones, carboxylic acids, and esters. Aldehydes have at least one hydrogen atom attached to the carbonyl carbon, ketones have two carbon groups attached to the carbonyl carbon, carboxylic acids have a hydroxyl group (-OH) attached to the carbonyl carbon, and esters have an oxygen atom attached to another carbon group connected to the carbonyl carbon.