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  1. Aldehyde - Wikipedia

    Aldehyde molecules have a central carbon atom that is connected by a double bond to oxygen, a single bond to hydrogen and another single bond to a third substituent, which is carbon or, in …

  2. Aldehyde | Definition, Structure, Examples, & Facts | Britannica

    Dec 23, 2025 · Aldehyde, any of a class of organic compounds in which a carbon atom shares a double bond with an oxygen atom, a single bond with a hydrogen atom, and a single bond with …

  3. Aldehyde Functional Group: Definition, Structure, & Examples

    What is an aldehyde. Learn its general formula, structure, nomenclature, properties, and chemical reactions. Check out a few examples, along with their uses.

  4. What Is an Aldehyde? Structure, Examples, and Uses

    The defining feature of an aldehyde is its functional group, the formyl group, consisting of a carbon atom double-bonded to an oxygen (C=O) and single-bonded to at least one hydrogen …

  5. ALDEHYDE Definition & Meaning - Merriam-Webster

    The meaning of ALDEHYDE is acetaldehyde; broadly : any of a class of highly reactive organic compounds that are analogous to acetaldehyde and characterized by a carbonyl group …

  6. 18.7: Aldehydes and Ketones - Chemistry LibreTexts

    Summary An aldehyde is an organic compound in which the carbonyl group is attached to a carbon atom at the end of a carbon chain.

  7. Aldehyde Functional Group - ChemTalk

    Learn about the aldehyde functional group, examples and its properties! You will also learn about their reactions, and aldehyde vs ketone.

  8. What are aldehydes: definition, structure, and examples

    An aldehyde is characterized by having a carbon atom that is double-bonded to an oxygen atom and single-bonded to hydrogen and another group, making them unique among organic …

  9. What Is an Aldehyde? Definition, Uses, and Examples

    An aldehyde is an organic compound characterized by a functional group called a carbonyl group (C=O), where a carbon atom is double-bonded to an oxygen atom. This carbon is also single …

  10. Aldehyde - Simple English Wikipedia, the free encyclopedia

    The group without the side chain is called the aldehyde group or formyl group. Aldehydes are different from ketones because the formyl group is at the end of the molecule in an aldehyde.