Correct IUPAC name for
`{:(H_(3)C-CH-" "CH-CH_(3)),(" |"" |"),(" "C_(2)H_(5)" "C_(2)H_(5)):}` is

Options

A. 2-Ethyl-3-methylpentane
B. 3, 4-Dimethylhexane
C. 2-sec-butylbutane
D. 2, 3-Dimethylbutane

Explanation

To determine the correct IUPAC name for 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 6 carbon atoms.

### Step 2: Number the carbon chain
Next, we need to number the carbon chain. We will start numbering from the end that gives the substituents (branches) the lowest possible numbers. In this case, we can number the chain as follows:
1. C1
2. C2
3. C3
4. C4
5. C5
6. C6

### Step 3: Identify and name the substituents
Now, we look for any substituents attached to the main carbon chain. In this case, we have two ethyl groups (C2H5) attached to the carbon chain:
- One ethyl group is attached to carbon 3.
- Another ethyl group is attached to carbon 4.

### Step 4: Combine the names of the substituents and the main chain
Since there are two ethyl groups, we use the prefix "di" to indicate that there are two identical substituents. The substituents are located at the 3rd and 4th positions on the chain. Therefore, we write "3,4-diethyl".

### Step 5: Add the root name of the main chain
The root name for a 6-carbon alkane is "hexane". Since all the bonds in the compound are single bonds, we use "hexane" without any additional suffix.

### Step 6: Write the complete IUPAC name
Putting it all together, the complete IUPAC name for the compound is **3,4-diethylhexane**.

### Final Answer:
The correct IUPAC name for the compound is **3,4-diethylhexane**.

---