The IUPAC name of the compound is
`CH_(3)-underset(CH_(3))underset(|)(CH)-CH_(2)-CH(OH)-CH_(2)`

Options

A. 4-Methylhexan-3-ol
B. Heptan-2-ol
C. 4-Methylhexan-2-ol
D. None of these

Answer

To determine the IUPAC name of the compound `CH₃-CH(CH₃)-CH₂-CH(OH)-CH₂`, we will follow a systematic approach based on IUPAC naming conventions.

### Step-by-Step Solution:

1. **Identify the Longest Carbon Chain**:
- The first step is to identify the longest continuous carbon chain in the compound. In this case, the longest chain consists of 5 carbon atoms.
- The structure can be visualized as:
```
CH₃
|
CH-CH₂-CH(OH)-CH₂
```

2. **Determine the Parent Chain**:
- Since we have identified a chain of 5 carbon atoms, the parent chain is pentane. The suffix for an alkane with a hydroxyl group (alcohol) is "ol".

3. **Identify the Functional Group**:
- The functional group present in the compound is a hydroxyl group (-OH), which is attached to the second carbon in the chain.

4. **Identify Substituents**:
- There is a methyl group (CH₃) as a substituent on the fourth carbon of the main chain.

5. **Number the Carbon Chain**:
- Number the carbon atoms in the longest chain starting from the end nearest to the functional group (OH). This gives us:
- C1: CH₂ (attached to OH)
- C2: CH (attached to CH₃)
- C3: CH₂
- C4: CH
- C5: CH₃

6. **Construct the IUPAC Name**:
- The substituent (methyl) is located at carbon 4, and the hydroxyl group is at carbon 2. Therefore, the name will be constructed as follows:
- The name is: **4-methyl-pent-2-ol**.

### Final IUPAC Name:
The IUPAC name of the compound is **4-methyl-pent-2-ol**.

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