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Let us examine how a compound in which hydroxyl grup
attached to an aromatic ring is more acidic than the one
which hydroxyl group is attached to an alkyl group.
Answers
Compounds in which an OH group is attached directly to an aromatic ring are designated ArOH and called phenols. Phenols differ from alcohols in that they are slightly acidic in water. They react with aqueous sodium hydroxide (NaOH) to form salts. The parent compound, C 6H 5OH, is itself called phenol.
of course, is in class by itself in this respect.
Compounds in which an OH group is attached directly to an aromatic ring are designated ArOH and called phenols. Phenols differ from alcohols in that they are slightly acidic in water. They react with aqueous sodium hydroxide (NaOH) to form salts.
ArOH(aq)+NaOH(aq)→ArONa(aq)+H2O
The parent compound, C6H5OH, is itself called phenol. (An old name, emphasizing its slight acidity, was carbolic acid.) Phenol is a white crystalline compound that has a distinctive (“hospital smell”) odor.