MHT CET Chemistry Question (2026) — Solution

Step-by-step solution

Primary amines have the general formula R-NH_2. Since they have two hydrogen atoms attached to the highly electronegative nitrogen atom, they can form intermolecular hydrogen bonds. Tertiary butylamine has the structure (CH_3)_3C-NH_2. The nitrogen atom is attached to only one carbon atom, making it a primary amine. Tertiary amines have the general formula R_3N. They do not have any hydrogen atoms attached to the nitrogen atom, so they cannot form intermolecular hydrogen bonds with each other. iso-propylamine has the structure (CH_3)_2CH-NH_2. The nitrogen atom is attached to only one carbon atom. Therefore, it is a primary amine, not a secondary amine. The classification of amines depends on the number of alkyl groups attached to the nitrogen atom, not the degree of the carbon atom it is attached to. Answer: iso-propylamine is a secondary amine.