A hydroxyl group is
A) also called a carbonyl group.
B) characteristic of proteins.
C) characteristic of alcohols.
D) composed of two oxygen atoms.

Question

Quizplus · Accepted Answer

A hydroxyl group (-OH) is characteristic of alcohols, which are organic compounds containing one or more hydroxyl groups. It is not called a carbonyl group (which is composed of a carbon atom double-bonded to an oxygen atom), nor is it characteristic of proteins (which are composed of amino acids). While a hydroxyl group contains one oxygen atom, it is not composed of two oxygen atoms.

A Hydroxyl Group Is