The (c6h14)2nh molecule represents a amine.

primary

secondary

tertiary

Secondary .

Explanation:

Primary amine contains only one alkyl group.

Secondary amine contains two alkyl groups.

Tertiary amine contains three alkyl groups.

So, it is secondary amine.

Secondary

Explanation:

Because of this amount of hydrogens being substituted, we can classify the amines in primary (R-NH2), secondary (R1R2NH) and tertiary (R1R2R3N) amines. In the primary amines, only one of the hydrogens is replaced by an organic radical, for example, in the following CH3 - NH2 molecule, in the secondary we have the substitution of two hydrogen atoms, as in the case of CH3 - NH - CH3 and in the tertiary all are replaced.

In the molecule (C6H14) 2NH, the bold part shows the substitution of two hydrogen, so we can classify the molecule as a secondary amine.