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Phenol as a Weak Acid

OCR A-level Organic ChemistryBenzeneLesson 11 of 16

Phenol is a weak acid. In water it partially dissociates, losing a proton from the -OH group to form the phenoxide ion:

C6H5OH ⇌ C6H5O− + H+

Phenol is more acidic than alcohols such as ethanol, which hardly dissociate in water, but it is weaker than carboxylic acids.

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