The IUPAC name of following compound is:
`CH_(3)CH_(2) - underset(CH_(3))underset(|)overset(H)overset(|)(C) - underset(CH_(3))underset(|)overset(C_(4)H_(9))overset(|)(C) - CH_(3)`

Options

A. 3, 4, 4-Trimethylheptane
B. 3, 4, 4-Trimethyloctane
C. 2-Butyl-2-methyl-3-ethylbutane
D. 2-Ethyl-3, 3-dimethylheptane

Explanation

To determine the IUPAC name of the given compound, we will follow these steps:

### Step 1: Identify the Longest Carbon Chain
- The first step in naming an organic compound is to identify the longest continuous carbon chain. In this case, the longest chain consists of 8 carbon atoms.

### Step 2: Number the Carbon Chain
- Number the carbon chain starting from the end that gives the substituents the lowest possible numbers. In this case, if we number from the left, we get:
1. C1
2. C2
3. C3
4. C4
5. C5
6. C6
7. C7
8. C8
- This numbering gives us the lowest numbers for the substituents.

### Step 3: Identify and Name the Substituents
- From the numbering, we can see that there are three methyl (–CH₃) groups attached to the carbon chain:
- One methyl group at C3
- Two methyl groups at C4
- Therefore, we denote the substituents as "3,4,4-trimethyl".

### Step 4: Combine the Information
- The parent chain has 8 carbons, which corresponds to the prefix "oct".
- Since the compound is saturated (only single bonds), we use the suffix "ane".
- Therefore, the full name of the compound is "3,4,4-trimethyl-octane".

### Final Answer
The IUPAC name of the compound is **3,4,4-trimethyl-octane**.

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