Final answer:
The compound that is an alcohol among those provided is CH3CH2OH, which is known as ethanol, identifiable by its characteristic hydroxyl (OH) group.
Step-by-step explanation:
To identify which compound among the given options is an alcohol, we look for a molecule with a hydroxyl (OH) functional group attached to an aliphatic carbon atom. The general formula for alcohols is ROH, where R represents an alkyl group. From the options:
- CH3CH2COOH (This is an acid)
- CH3CH2OH (This is an alcohol)
- CH3COCH3 (This is a ketone)
- CH3CH2Br (This is an alkyl halide)
The correct answer is CH3CH2OH, which is known as ethanol. Ethanol is a common alcohol, familiar to many as the active ingredient in alcoholic beverages. Other examples of alcohols include methanol (CH3OH) and isopropyl alcohol (CH3CH(OH)CH3).