In which of the following compounds does intramolecular H-bonding occure?
a. Salicylaldehyde
b. o-Fluoro phenol
c. o-Hydroxybenzonitrile

Explanation

To determine which of the given compounds exhibits intramolecular hydrogen bonding, we will analyze each compound step by step.

### Step 1: Understand Intramolecular Hydrogen Bonding
Intramolecular hydrogen bonding occurs when a hydrogen atom covalently bonded to an electronegative atom (like oxygen or nitrogen) forms a bond with another electronegative atom within the same molecule. This typically requires a specific spatial arrangement of atoms.

### Step 2: Analyze Salicylaldehyde
- **Structure**: Salicylaldehyde has a benzene ring with an aldehyde group (-CHO) and a hydroxyl group (-OH) attached to adjacent carbon atoms.
- **Potential for Hydrogen Bonding**: The hydrogen atom of the hydroxyl group can form a hydrogen bond with the oxygen atom of the aldehyde group.
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