Question

Tertiary butyl amine is a:

• A. $1^o$ amine
• B. $2^o$ amine
• C. $3^o$ amine
• D. None of the above

Answer 1

The correct option is A $1^o$ amine

If one hydrogen of ammonia is replaced by an alkyl/aryl group, it is called a primary amine.
Tertiary butyl amine is a primary amine as it contains $N{H}_2$ group attached with tertiary butyl group.
Hence option (a) is correct.