Which statement best describes the alcohol functional group?

Which statement best describes the alcohol functional group?

• A. C=O
• B. OH alone
• C. C=C
• D. N-containing group

Answer: (B)

Alcohols are defined by a hydroxyl group, -OH, attached to a carbon. This -OH group is the defining feature that gives alcohols their name and distinctive properties, such as polarity and hydrogen-bonding capability, which affects boiling points and solubility. The other common groups describe different functionalities: a carbonyl group (C=O) appears in aldehydes and ketones, a carbon–carbon double bond (C=C) is found in alkenes, and nitrogen-containing groups appear in amines and related compounds. Because of that, the presence of the hydroxyl group is the correct description of the alcohol functional group.

Alcohols are defined by a hydroxyl group, -OH, attached to a carbon. This -OH group is the defining feature that gives alcohols their name and distinctive properties, such as polarity and hydrogen-bonding capability, which affects boiling points and solubility. The other common groups describe different functionalities: a carbonyl group (C=O) appears in aldehydes and ketones, a carbon–carbon double bond (C=C) is found in alkenes, and nitrogen-containing groups appear in amines and related compounds. Because of that, the presence of the hydroxyl group is the correct description of the alcohol functional group.