Write the IUPAC name of `CH_(3)-underset(CH_(3))underset(|)overset(CH_(3))overset(|)C-CH_(3)`

Options

A. neo-Pentane
B. 2, 2-Dimnethylpropane
C. 2-methylpentane
D. 2, 3-Dimethylpropane

Explanation

To determine the IUPAC name of the compound `CH₃-CH(CH₃)-C(CH₃)-CH₃`, we will follow these steps:

### Step 1: Identify the Longest Carbon Chain
First, we need to identify the longest continuous carbon chain in the compound. In this case, we can see that there are four carbon atoms in a straight chain.

### Step 2: Number the Carbon Chain
Next, we need to number the carbon chain. We will start from the end that gives the substituents the lowest possible numbers. Here, we can number the chain as follows:

1. C1 - CH₃ (methyl group)
2. C2 - CH (attached to two methyl groups)
3. C3 - C (attached to two methyl groups)
4. C4 - CH₃ (methyl group)

### Step 3: Identify and Name the Substituents
Now, we will identify the substituents on the main carbon chain. In this case, we have two methyl (CH₃) groups attached to the second and third carbon atoms.

### Step 4: Assign Locants to the Substituents
The methyl groups are located at carbon 2 and carbon 3. Since there are two substituents, we will use the prefix "di" to indicate that there are two identical substituents.

### Step 5: Write the IUPAC Name
Now we can write the IUPAC name. The name will be constructed as follows:

- Start with the substituents in alphabetical order: "2,3-dimethyl"
- Followed by the name of the longest carbon chain: "butane"

Thus, the complete IUPAC name of the compound is **2,3-dimethylbutane**.

### Final Answer
The IUPAC name of the compound `CH₃-CH(CH₃)-C(CH₃)-CH₃` is **2,3-dimethylbutane**.

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