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  1. What Is a Hydroxyl Radical and Why Is It So Reactive?

    The term “hydroxyl” refers to a chemical combination of one oxygen atom and one hydrogen atom, represented by the structure -OH. This simple structure exists as both a stable, covalently bonded …

  2. Hydroxy group - Wikipedia

    In chemistry, a hydroxy or hydroxyl group is a functional group with the chemical formula −OH and composed of one oxygen atom covalently bonded to one hydrogen atom.

  3. Hydroxyl group | Definition, Structure, & Facts | Britannica

    hydroxyl group (―OH), in chemistry, a functional group with one hydrogen and one oxygen atom. An oxygen atom normally forms two σ bonds with other atoms; the water molecule, H 2 O, is the …

  4. What Are Hydroxyls and Why Are They Important?

    Aug 1, 2025 · A hydroxyl group is an arrangement of one oxygen atom covalently bonded to one hydrogen atom, represented as -OH. This functional group is derived from a water molecule (H₂O) …

  5. Hydroxyl: Definition, Formula, Types, Formation, & Reactions

    What is a hydroxyl group. Learn its formula, structure, properties, preparations, reactions, and uses. Check out a few examples of compounds containing hydroxyl.

  6. HYDROXYL Definition & Meaning - Merriam-Webster

    The meaning of HYDROXYL is the chemical group, ion, or radical OH that consists of one atom of hydrogen and one of oxygen and is neutral or negatively charged.

  7. Hydroxyl Group - GeeksforGeeks

    Jul 23, 2025 · The hydroxyl group consists of one oxygen atom and one hydrogen atom bonded together. It is commonly found in organic compounds such as alcohols and carbohydrates.

  8. Hydroxyl Definition for Organic Chemistry | Fiveable

    The hydroxyl group (–OH) is a functional group consisting of a hydrogen atom bonded to an oxygen atom. It is a key structural feature in many organic compounds and plays a crucial role in various …

  9. Hydroxyl Group Definition - Chemistry Term - ThoughtCo

    Nov 5, 2018 · The hydroxyl group is a functional group consisting of a hydrogen atom covalently bonded to an oxygen atom. The hydroxyl group is denoted by -OH in chemical structures and has a valence …

  10. Hydroxyl Group | Structure, Formula & Properties - Study.com

    Learn the molecule of hydroxyl and the properties of hydroxyl molecules that can act as a functional group. See the structure and examples in compounds.