Do o - nitrophenol and p - nitrophenol have hydrogen bonding in their molecules? Explain which of the two has higher boiling point?

Explanation

To determine whether ortho-nitrophenol and para-nitrophenol have hydrogen bonding in their molecules and to explain which of the two has a higher boiling point, we can follow these steps:

### Step 1: Draw the Structures
- **Ortho-nitrophenol (o-nitrophenol)** has the -NO2 group positioned adjacent to the -OH group on the benzene ring.
- **Para-nitrophenol (p-nitrophenol)** has the -NO2 group positioned opposite the -OH group on the benzene ring.

### Step 2: Identify Hydrogen Bonding
- Both ortho-nitrophenol and para-nitrophenol can form hydrogen bonds due to the presence of the hydroxyl (-OH) group.
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