Give one reaction to show that phenol is acidic in character.

Explanation

To demonstrate that phenol is acidic in character, we can consider its reaction with a strong base, such as sodium hydroxide (NaOH). Here’s a step-by-step explanation of the reaction:

### Step-by-Step Solution:

1. **Identify Phenol**:
- Phenol is an aromatic compound with the formula C6H5OH. It has a hydroxyl (-OH) group attached to a benzene ring.

2. **Reaction with Sodium Hydroxide**:
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