Question

what can you infer from the name propylamine?
select the correct answer below:
there is only one alkyl group attached to the nitrogen atom.
the amine belongs to primary (1°) type.
the name is due to a propyl group being attached to a (nh₂) group.
all of the above

Explanation:

Step1: Analyze the structure of propylamine

Propylamine has the formula \(CH_3CH_2CH_2NH_2\).

Step2: Check the number of alkyl groups attached to nitrogen

In \(CH_3CH_2CH_2NH_2\), only one alkyl group (\(CH_3CH_2CH_2-\)) is attached to the nitrogen atom.

Step3: Determine the type of amine

Since only one alkyl group is attached to the nitrogen (the other two bonds on nitrogen are to hydrogen atoms), it is a primary (\(1^{\circ}\)) amine.

Step4: Verify the naming origin

The name propyl - amine implies a propyl group (\(CH_3CH_2CH_2-\)) attached to an \(-NH_2\) group.

So all the statements are correct.

Answer:

all of the above