Which of the following dihalides are `alpha- omega`, gem and vicinal dihalides?
2,2-Dichloropropane

Explanation

To determine the type of dihalide that 2,2-dichloropropane is, we need to understand the definitions of alpha-omega, geminal, and vicinal dihalides.

### Step-by-Step Solution:

1. **Understanding Dihalides**:
- Dihalides are compounds that contain two halogen atoms (like chlorine, bromine, etc.) attached to a carbon chain.

2. **Identify the Structure of 2,2-Dichloropropane**:
...