The structure representing N,N-dimethylethanamine is

The correct answer is option 3

The structure representing N,N-dimethylethanamine is:

This structure shows that the nitrogen atom is bonded to two methyl groups \((CH_3)\) and one ethyl group \((CH_2CH_3)\). The ethyl group is attached to the nitrogen atom through the carbon atom that is bonded to the two methyl groups.

The IUPAC name for N,N-dimethylethanamine is dimethylamine. It is a colorless liquid with a fishy odor. It is soluble in water and is used in a variety of industrial applications, including:

• As a catalyst for the production of polyurethane foam
• As a solvent for dyes and pigments
• As a corrosion inhibitor for metals
• As a precursor to the production of other chemicals

Dimethylamine is also a common contaminant in wastewater treatment plants. It is produced by the breakdown of organic matter and can cause foaming and other problems in wastewater treatment processes.