Which of the following compounds is a primary alcohol?

Which of the following compounds is a primary alcohol?

Step 1: Understand what a primary alcohol is. A primary alcohol has a hydroxyl group (-OH) attached to a carbon atom that is connected to only one other carbon atom.
Step 2: Look at the structure of the compound CH3CH2OH (ethanol).
Step 3: Identify the carbon atom that has the -OH group attached to it. In ethanol, this is the second carbon.
Step 4: Check how many carbon atoms are connected to the carbon with the -OH group. In ethanol, this carbon is connected to only one other carbon.
Step 5: Since the carbon with the -OH group is connected to only one other carbon, ethanol is classified as a primary alcohol.

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