Concept:The type of an amine is decided by the number of carbon groups directly attached to the nitrogen atom.
Explanation:Iso propyl amine has the formula
(CH3​)2​CH−NH2​.
In this structure, the nitrogen atom is attached to only one alkyl group, which is the isopropyl group
((CH3​)2​CH−).
The nitrogen atom also carries two hydrogen atoms.
Hence, it fits the general form
R−NH2​.
Amines with one alkyl group and two hydrogen atoms on nitrogen are called primary amines.
Therefore, iso propyl amine is a primary amine.
Answer:Option A: primary amine