What happens when phenol is hydrogenated ?

Explanation

### Step-by-Step Text Solution:

1. **Understanding Phenol Structure**:
- Phenol consists of a benzene ring (C6H5) attached to a hydroxyl group (-OH). The structure can be represented as C6H5OH.

2. **Identifying the Reaction**:
- When phenol undergoes hydrogenation, it means that hydrogen gas (H2) is added to the compound. This process typically requires a catalyst, such as nickel (Ni).

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