The correct structure of hydroquinone or quinol is

Answer

To determine the correct structure of hydroquinone (also known as quinol), we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Compound**: Hydroquinone is also known as quinol and is recognized as benzene-1,4-diol in IUPAC nomenclature.

2. **Understand the Molecular Formula**: The molecular formula of hydroquinone is C6H6O2, indicating that it consists of a benzene ring with two hydroxyl (–OH) groups.

3. **Draw the Benzene Ring**: Start by drawing a hexagonal structure that represents the benzene ring. This ring consists of six carbon atoms connected by alternating single and double bonds.

4. **Add Hydroxyl Groups**:
- Hydroquinone has two hydroxyl groups. For hydroquinone, these –OH groups are attached to the benzene ring at the 1 and 4 positions (para position).
- Place one –OH group on one carbon atom of the benzene ring (this will be carbon 1) and the other –OH group on the carbon atom directly opposite (carbon 4).

5. **Finalize the Structure**: Ensure that the structure clearly shows the benzene ring with the two –OH groups attached at the 1 and 4 positions. The final structure should look like this:

```
OH
|
C6H4 - C
|
OH
```

### Final Structure:
The correct structure of hydroquinone (quinol) is represented as:

```
OH
|
C6H4 - C
|
OH
```