What is the relation between `3`-Ethylpentane and `3`-Methylhexane?

Options

A. Chain isomers
B. Position isomers
C. Functional isomers
D. Relation

Explanation

To determine the relationship between 3-Ethylpentane and 3-Methylhexane, we can follow these steps:

### Step 1: Draw the Structures
1. **3-Ethylpentane**:
- Start with a pentane chain (5 carbon atoms).
- Attach an ethyl group (C2H5) at the 3rd carbon.
- The structure will look like this:
```
CH2-CH3
|
CH3-CH-CH2-CH2-CH3
```

2. **3-Methylhexane**:
- Start with a hexane chain (6 carbon atoms).
- Attach a methyl group (CH3) at the 3rd carbon.
- The structure will look like this:
```
CH3
|
CH3-CH-CH2-CH2-CH2-CH3
```

### Step 2: Analyze the Molecular Formula
- **3-Ethylpentane**: The molecular formula is C7H16.
- **3-Methylhexane**: The molecular formula is also C7H16.

### Step 3: Determine the Type of Isomerism
- Both compounds have the same molecular formula (C7H16) but different structural arrangements.
- Since they differ in the carbon skeleton (the arrangement of carbon atoms), they are classified as **chain isomers**.

### Conclusion
3-Ethylpentane and 3-Methylhexane are **chain isomers** of each other because they have the same molecular formula but differ in the arrangement of their carbon chains.

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