Oxyacid Definition and Examples

Phosphoric acid is an oxyacid acid.
Phosphoric acid is an oxyacid. Ben Mills/PD

An oxyacid is an acid that contains an oxygen atom bonded to a hydrogen atom and at least one other element. An oxyacid dissociates in water to form the H+ cation and the anion of the acid. An oxyacid has the general structure X-O-H.

Also Known As: oxoacid

Examples: Sulfuric acid (H2SO4), phosphoric acid (H3PO4), and nitric acid (HNO3) are all oxyacids.

Note: Keto acids and oxocarboxylic acids are sometimes mistakenly called oxyacids.

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Helmenstine, Anne Marie, Ph.D. "Oxyacid Definition and Examples." ThoughtCo, Oct. 10, 2017, thoughtco.com/definition-of-oxyacid-605461. Helmenstine, Anne Marie, Ph.D. (2017, October 10). Oxyacid Definition and Examples. Retrieved from https://www.thoughtco.com/definition-of-oxyacid-605461 Helmenstine, Anne Marie, Ph.D. "Oxyacid Definition and Examples." ThoughtCo. https://www.thoughtco.com/definition-of-oxyacid-605461 (accessed May 21, 2018).