1) Select the correct IUPAC name for: CH3 CH3CH2CH2CH2CCH2CH3 CH2CH2CH3 A) 5-methyl-5-ethyloctane B) 5-methyl-5-propylheptane C) 4-ethyl-4-methyloctane D) 3-methyl-3-propyloctane E) 3-methyl-3-propylheptane

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Chapter1: Chemical Foundations
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**Question:**
Select the correct IUPAC name for the given compound:

**Chemical Structure:**
The diagram shows a branched hydrocarbon chain with the following structure:

```
   CH3
    |
CH3CH2CH2CH2CHCH2CH3
        |
   CH2CH2CH3
```

**Options:**
A) 5-methyl-5-ethyloctane  
B) 5-methyl-5-propylheptane  
C) 4-ethyl-4-methyloctane  
D) 3-methyl-3-propyloctane  
E) 3-methyl-3-propylheptane  

**Explanation:**
To determine the correct IUPAC name, follow these steps:
1. Identify the longest carbon chain.
2. Determine the substituents and their positions on the main chain.
3. Name the compound according to IUPAC naming rules.

In the given structure, the longest carbon chain consists of 8 carbon atoms (octane). There is one methyl (CH₃) group and one propyl (CH₂CH₂CH₃) group attached to the main chain. 

The correct IUPAC name is:
**D) 3-methyl-3-propyloctane**
Transcribed Image Text:**Question:** Select the correct IUPAC name for the given compound: **Chemical Structure:** The diagram shows a branched hydrocarbon chain with the following structure: ``` CH3 | CH3CH2CH2CH2CHCH2CH3 | CH2CH2CH3 ``` **Options:** A) 5-methyl-5-ethyloctane B) 5-methyl-5-propylheptane C) 4-ethyl-4-methyloctane D) 3-methyl-3-propyloctane E) 3-methyl-3-propylheptane **Explanation:** To determine the correct IUPAC name, follow these steps: 1. Identify the longest carbon chain. 2. Determine the substituents and their positions on the main chain. 3. Name the compound according to IUPAC naming rules. In the given structure, the longest carbon chain consists of 8 carbon atoms (octane). There is one methyl (CH₃) group and one propyl (CH₂CH₂CH₃) group attached to the main chain. The correct IUPAC name is: **D) 3-methyl-3-propyloctane**
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