Question

Which of the following diagrams represents a general structure of a secondary amine?

A. An N bonded to two electron dots above, with a dotted triangular line to an H, a solid triangular line to an H, and a single line to an H; it is noted that the angle between the last two H atoms is 107 degrees.
B. An N with 2 electron dots linked to an R1 group with a single line, an H with a triangular line, and an H with a dotted line.
C. An N with 2 electron dots linked to an R1 group with a single line, an R2 group with a triangular line, and an H with a dotted line.
D. An N with 2 electron dots linked to an R1 group with a single line, an R2 group with a triangular line, and an R3 with a dotted line.

Answer 1

The diagram that represents the general structure of a secondary amine is option C, which depicts a nitrogen atom bonded to two carbon groups and one hydrogen atom.

Step-by-step explanation:

You have asked which diagram represents the general structure of a secondary amine. The correct structure for a secondary amine is when the nitrogen is bonded to one hydrogen atom and two carbon-containing groups (alkyl or aryl groups). From the options provided, the diagram that fits this description is:

C. An N with 2 electron dots linked to an R1 group with a single line, an R2 group with a triangular line, and an H with a dotted line.

This selection correctly illustrates the nitrogen (N) atom connected to two different carbon groups (R1 and R2) and a single hydrogen (H), which is the general structure of a secondary amine. A primary amine has the nitrogen bonded to only one carbon group and two hydrogens, while a tertiary amine has the nitrogen atom bonded to three carbon groups and no hydrogen atom directly attached.