Find total isomer obtained by dichlorination of n-butane

Explanation

To find the total isomers obtained by the dichlorination of n-butane (C4H10), we will follow these steps:

### Step 1: Identify the structure of n-butane
- n-butane is a straight-chain alkane with the formula C4H10. Its structure is:
```
CH3-CH2-CH2-CH3
```

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