Hydroxyl group: Difference between revisions
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A hydroxyl group (OH group) consists of an [[Oxygen|oxygen]] [[Atom|atom]] [[Covalent bond|covalently]] bonded to a [[Hydrogen|hydrogen]] [[Atom|atom]]. Due to the high [[Electronegativity|electronegativity]] of the [[Oxygen|oxygen]] [[ | A hydroxyl group (OH group) consists of an [[Oxygen|oxygen]] [[Atom|atom]] [[Covalent bond|covalently]] bonded to a [[Hydrogen|hydrogen]] [[Atom|atom]]. Due to the high [[Electronegativity|electronegativity]] of the [[Oxygen|oxygen]] [[Atom|atom]], the bond between the [[Oxygen|oxygen]] and the [[Hydrogen|hydrogen]] is highly [[Polarity|polar]]. Consequently, the hydroxyl group strongly attracts [[Water|water]] [[Molecules|molecules]], forming [[Hydrogen bonds|hydrogen bonds]]. Hydroxyl groups are responsible for the solubility of some [[Molecules|molecules]] such as [[Carbohydrate|sugars]]<ref>Mitch Fry, Elizabeth Page, (2005) Catch up Chemistry for Life and Medical Sciences, Page 93, Banbury: Scion Publishing Limited</ref>. The term [[Alcohol|alcohol]] is used to describe [[Molecules|molecules]] which have a hydroxyl group as their only [[Functional group|functional group]]. Dissociation of hydroxyl groups does not usually occur under normal biological conditions. | ||
=== References === | === References === | ||
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Latest revision as of 07:51, 20 October 2018
A hydroxyl group (OH group) consists of an oxygen atom covalently bonded to a hydrogen atom. Due to the high electronegativity of the oxygen atom, the bond between the oxygen and the hydrogen is highly polar. Consequently, the hydroxyl group strongly attracts water molecules, forming hydrogen bonds. Hydroxyl groups are responsible for the solubility of some molecules such as sugars[1]. The term alcohol is used to describe molecules which have a hydroxyl group as their only functional group. Dissociation of hydroxyl groups does not usually occur under normal biological conditions.
References
- ↑ Mitch Fry, Elizabeth Page, (2005) Catch up Chemistry for Life and Medical Sciences, Page 93, Banbury: Scion Publishing Limited