Question

Which of the following compounds is a tertiary amine?

a) CH₃CH₂N(CH₃)₂
b) (CH₃)₃CNH₂
c) CH₃CH₂NHCH₃
d) CH₃CH₂NHCH(CH₃)₂

Answer 1

Among the given compounds, a) CH3CH2N(CH3)2 is a tertiary amine as it has three alkyl groups attached to the nitrogen atom.

Step-by-step explanation:

The student's question seeks to identify a tertiary amine among the given compounds. A tertiary amine is one where three alkyl groups are attached to the nitrogen atom. Based on the data provided:

• CH3CH2N(CH3)2 is a tertiary amine because it has three alkyl groups (two methyl and one ethyl) attached to the nitrogen.
• (CH3)3CNH2 is not a tertiary amine; it contains a primary amine group connected to a tertiary carbon atom.
• CH3CH2NHCH3 is a secondary amine with two distinct alkyl groups attached to the nitrogen.
• CH3CH2NHCH(CH3)2 is also a secondary amine with two distinct alkyl groups attached to the nitrogen.

Therefore, the answer is a) CH3CH2N(CH3)2, which is a tertiary amine.