J.R. S. answered 08/04/21
Ph.D. University Professor with 10+ years Tutoring Experience
The type/functional group would be an amine. The name of the compound would be trimethyl amine.
An amine is a derivative of ammonia (NH3) where one, two, or all three hydrogen are replaced by carbon (hydrocarbon) groups.
-CH3 is a methyl group and there are three of them, so we call it trimethyl amine.