The structure given below represents
`CH_(3)-underset(CH_(3))underset(|)overset(CH_(3))overset(|)C-NH_(2)`

Options

A. Quartermary ammonium salt
B. Primary amine
C. Secondary amine
D. Tertiary amine

Explanation

To determine the classification of the given organic compound, we need to analyze its structure. The compound is represented as `CH₃-CH(CH₃)-C(NH₂)`, which indicates the presence of a nitrogen atom connected to carbon atoms and hydrogen atoms.

### Step-by-Step Solution:

1. **Identify the Structure**:
The structure can be broken down as follows:
- The central carbon (C) is attached to:
- One amino group (-NH₂)
- Two methyl groups (-CH₃)
- This indicates that the nitrogen is bonded to one carbon atom (the central carbon) and has two hydrogen atoms.

2. **Determine the Type of Amine**:
- **Primary Amine**: A primary amine has the nitrogen atom bonded to one carbon atom and two hydrogen atoms (R-NH₂).
- **Secondary Amine**: A secondary amine has the nitrogen atom bonded to two carbon atoms and one hydrogen atom (R₂-NH).
- **Tertiary Amine**: A tertiary amine has the nitrogen atom bonded to three carbon atoms (R₃-N).

3. **Analyze the Given Structure**:
In the given structure `CH₃-CH(CH₃)-C(NH₂)`, the nitrogen (N) is attached to:
- One carbon (the central carbon)
- Two hydrogen atoms

This matches the definition of a primary amine.

4. **Conclusion**:
Based on the analysis, the structure represents a **primary amine**.

### Final Answer:
The structure given represents a **primary amine**.

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