Which one of the following compound is capcabel of existing in a meso form

Options

A. 3,3-dibromopentane
B. 4-bromo-2-pentanol
C. 3-bromo-pentanol
D. 2,4-dibromopentane

Explanation

To determine which compound is capable of existing in a meso form, we need to understand the concept of meso compounds. A meso compound has two or more chiral centers but possesses an internal plane of symmetry, making it achiral overall.

### Step-by-Step Solution:

1. **Identify the Definition of Meso Compounds**:
- A meso compound must have at least two chiral centers and an internal plane of symmetry.

2. **Examine Each Compound**:
- **Option 1: 3,3-Dibromopentane**:
- Check for chiral centers: There are no chiral centers in this compound.
- Conclusion: Not a meso compound.

- **Option 2: 4-Bromo-2-pentanol**:
- Check for chiral centers: This compound has two chiral centers.
- Check for symmetry: There is no plane of symmetry present.
- Conclusion: Not a meso compound.

- **Option 3: 3-Bromo-3-pentanol**:
- Check for chiral centers: This compound has only one chiral center.
- Conclusion: Not a meso compound (meso compounds cannot have only one chiral center).

- **Option 4: 2,4-Dibromopentane**:
- Check for chiral centers: This compound has two chiral centers.
- Check for symmetry: There is an internal plane of symmetry.
- Conclusion: This compound is a meso compound.

3. **Final Answer**:
- The compound capable of existing in a meso form is **Option 4: 2,4-Dibromopentane**.