Question

Which of the following is $3^0$ amine?

• A. 1-methylcyclohexylamine
• B. Triethylamine
• C. Tert-butylamine
• D. N-methyl aniline

Answer 1

Answer: (B)

Triethylamine

In tertiary amines, all three hydrogen atoms are replaced by organic substituents.

In 1-methylcyclohexylamine, 1 hydrogen is attached to nitrogen . so secondary amine.

In Tert-butylamine, 2 hydrogens are attached to nitrogen.so primary amine.

In N-methyl aniline, 1 hydrogen is attached to nitrogen . so secondary amine.

In Triethylamine, no hydrogens are attached to nitrogen. So tertiary amine.