Final answer:
CH₃CH₂OH is an alcohol, specifically known as ethyl alcohol or ethanol, characterized by the hydroxyl group (-OH) attached to an aliphatic carbon atom.
Step-by-step explanation:
The question asks which compound is an alcohol. An alcohol is characterized by having one or more hydroxyl (OH) functional groups attached to an aliphatic carbon atom. The compounds listed are:
Out of these, the one that qualifies as an alcohol is CH₃CH₂OH. This compound has a hydroxyl group (-OH) attached to an aliphatic carbon atom, making it an alcohol. Specifically, CH₃CH₂OH is known as ethyl alcohol or ethanol, and is the alcohol found in alcoholic beverages.