Question

What group of organic compounds has a hydroxyl group -O-H attached to a carbon atom? Alcohols Amines Ethers Ketones

Answer 1

Alcohols are compounds in which one or more hydrogen atoms in an alkane have been replaced by an -OH group.
Two alkyl (or other hydrocarbon) groups bridged by an oxygen atom is called an ether.
In amines, the hydrogen atoms in the ammonia have been replaced one at a time by hydrocarbon groups.
the carbonyl group has two hydrocarbon groups attached and a double bond to oxygen too