Which of the following dihalides are `alpha- omega`, gem and vicinal dihalides?
1,3-Dichloropropane

Explanation

To determine the type of dihalide that 1,3-Dichloropropane represents, we need to analyze its structure and the definitions of different types of dihalides: alpha-omega, geminal, and vicinal dihalides.

### Step-by-Step Solution:

1. **Identify the Structure of 1,3-Dichloropropane:**
- The molecular formula for 1,3-Dichloropropane indicates that it has three carbon atoms (propane) with chlorine atoms attached to the first and third carbon atoms.
- The structure can be drawn as follows:
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