Question

(CH$_3$)$_3$N is a –

• A. Primary amine
• B. Secondary amine
• C. Tertiary amine
• D. None of these

Hint:

To classify amines, just count how many carbon groups (alkyl or aryl) are directly attached to the nitrogen atom: 1 = primary, 2 = secondary, 3 = tertiary.

Answer 1

The Correct Option is C

Step 1: Recall classification of amines.
- A primary amine (1°) has one alkyl group attached to nitrogen (R–NH$_2$).
- A secondary amine (2°) has two alkyl groups attached to nitrogen (R$_2$–NH).
- A tertiary amine (3°) has three alkyl groups attached to nitrogen (R$_3$–N).

Step 2: Apply to given case.
In (CH$_3$)$_3$N, nitrogen is bonded to three methyl (–CH$_3$) groups and has no hydrogen directly attached to it.

Step 3: Identify type.
Since three alkyl groups are attached to nitrogen, it is a tertiary amine.
Step 4: Final Answer.
\[ \boxed{\text{Tertiary amine}} \]