1. An organic compound containing a carbonyl group (C=O) bonded to a hydrogen atom and a carbon atom, typically formed by the oxidation of alcohols.
Usage: chemistry; commonly used in organic chemistry and industrial processes

Examples

• Formaldehyde is the simplest aldehyde, with the formula CH₂O.
• The oxidation of ethanol produces acetaldehyde, an important industrial chemical.
• Aldehydes are often more reactive than ketones due to their structure.
• Many aldehydes have distinctive odors and are used in fragrances and flavorings.
• The aldehyde group is characterized by a carbon atom double-bonded to oxygen.
• Benzaldehyde, an aldehyde derived from benzene, has a pleasant almond-like smell.