IUPAC name of `CH_3 (CH_2)_2 NH_2` is

Options

A. 1-Propanamine
B. 2-Methyl ethanamine
C. Iso-Propylamine
D. `2^(0)`-Propylamine

Explanation

To determine the IUPAC name of the compound `CH₃(CH₂)₂NH₂`, we can follow these steps:

### Step 1: Identify the Structure
The given compound can be broken down as follows:
- `CH₃` represents a methyl group.
- `(CH₂)₂` indicates a two-carbon chain (ethyl).
- `NH₂` is the amino group.

So, the complete structure can be visualized as:
```
CH3
|
CH2-CH2-NH2
```

### Step 2: Determine the Longest Carbon Chain
The longest continuous carbon chain in the compound consists of three carbon atoms (from `CH₃` to `CH₂` to `CH₂`), which corresponds to propane.

### Step 3: Identify the Functional Group
The functional group present in this compound is the amino group (`-NH₂`).

### Step 4: Number the Carbon Chain
When numbering the carbon chain, we start from the end closest to the functional group (the amino group). This gives us:
1. The first carbon (C1) is where the `NH₂` group is attached.
2. The second carbon (C2).
3. The third carbon (C3).

### Step 5: Construct the IUPAC Name
Since the amino group is attached to the first carbon of a three-carbon chain (propane), the IUPAC name of the compound is:
- **1-aminopropane**.

### Final Answer
The IUPAC name of `CH₃(CH₂)₂NH₂` is **1-aminopropane**.

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