IUPAC nomenclature of the given organic compound `(CH_(3))_(2)C(CH_(2)CH_(3))CH_(2)CH(Cl)CH_(3)` will be

Options

A. `5`-Chloro `3,3`-dimethyl hexane
B. `4`-Chloro-`2`-ethyl-`2`-methyl pentane
C. `2`-Chloro-`4`-ethyl-`4`-methyl pentane
D. `2`-Chloro-`4,4`-dimenthyl hexane

Answer

To determine the IUPAC name of the organic compound `(CH₃)₂C(CH₂CH₃)CH₂CH(Cl)CH₃`, we can follow these steps:

### Step 1: Draw the Expanded Structure
First, we need to expand the given molecular formula to visualize the structure. The compound can be represented as follows:

- The `(CH₃)₂` indicates two methyl groups attached to a carbon.
- The `C(CH₂CH₃)` indicates that this carbon is attached to an ethyl group (CH₂CH₃).
- The `CH₂CH(Cl)CH₃` indicates that there is a carbon chain with a chlorine substituent.

When we draw this out, we have:
```
CH₃
|
CH₃-C-CH₂-CH(Cl)-CH₃
|
CH₂CH₃
```

### Step 2: Identify the Longest Carbon Chain
Next, we need to identify the longest continuous carbon chain in the structure. In this case, the longest chain contains 6 carbon atoms.

### Step 3: Number the Carbon Chain
We will number the carbon chain starting from the end nearest to the substituents to give the substituents the lowest possible numbers:
```
1 - CH₃
2 - CH(Cl)
3 - CH₂
4 - C (with two CH₃ groups)
5 - CH₂
6 - CH₂CH₃
```

### Step 4: Identify Substituents
From the numbering:
- At carbon 2, there is a chlorine (Cl) substituent.
- At carbon 4, there are two methyl (CH₃) groups.

### Step 5: Write the IUPAC Name
Now we can compile the IUPAC name:
- The longest chain is hexane (6 carbons).
- The substituents are 2-chloro and 4,4-dimethyl.

Putting it all together, the IUPAC name of the compound is:
**2-chloro-4,4-dimethylhexane**

### Final Answer
The IUPAC nomenclature of the given organic compound `(CH₃)₂C(CH₂CH₃)CH₂CH(Cl)CH₃` is **2-chloro-4,4-dimethylhexane**.

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