Which of the following compounds is an amine?

Options

A.
B.
C.
D.

Explanation

To determine which of the given compounds is an amine, we need to understand the basic structure of amines and analyze each option accordingly.

### Step-by-Step Solution:

1. **Understanding the Structure of Amines**:
- Amines are derivatives of ammonia (NH3) where one or more hydrogen atoms are replaced by alkyl or aryl groups (R).
- There are three types of amines:
- **Primary amine (RNH2)**: One hydrogen atom is replaced by an R group.
- **Secondary amine (R2NH)**: Two hydrogen atoms are replaced by R groups.
- **Tertiary amine (R3N)**: All three hydrogen atoms are replaced by R groups.

2. **Analyzing the Options**:
- We will evaluate each option to see if it fits the definition of an amine.

3. **Option A**:
- The structure shows a double bond between carbon and nitrogen (C=N).
- Since amines have single bonds between carbon and nitrogen, **this is not an amine**.

4. **Option B**:
- Similar to option A, this structure also has a double bond between carbon and nitrogen (C=N).
- Therefore, **this is also not an amine**.

5. **Option C**:
- In this structure, nitrogen is attached to two carbon atoms and has one hydrogen atom.
- This fits the definition of a secondary amine (R2NH), where nitrogen is bonded to two R groups and one hydrogen.
- Thus, **this is an amine**.

6. **Option D**:
- This structure has nitrogen bonded to carbon, but it also has a carbonyl group (C=O) attached to the nitrogen.
- This indicates that it is an amide (RCONH2), not an amine.
- Therefore, **this is not an amine**.

7. **Conclusion**:
- The only compound that qualifies as an amine is **Option C**.

### Final Answer:
The compound that is an amine is **Option C**.

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