Final answer:
The compound is named based on the longest carbon chain attached to the nitrogen. If the question was referring to a primary amine with a propyl group, the name would be propylamine. If it's a secondary amine with a propyl group and a methyl group, it would be N-methylpropan-2-amine.
Step-by-step explanation:
The name of the compound HCH3-CH2-CH2-N-H is incorrectly listed, leading to some initial confusion. However, the correct nomenclature for amines can be applied to deduce the name of the compound. Amines are named based on the alkyl groups attached to the nitrogen atom, with the naming priority going to the longest carbon chain. With that in mind, if we consider the longest carbon chain as propyl (a three carbon chain), and knowing that there is only one hydrogen attached to the nitrogen, suggesting a secondary amine, the correct name should be propylamine (for a primary amine) or N-methylpropan-2-amine (for a secondary amine where methyl is the smaller alkyl group attached to the nitrogen).