Salicyaldehyde involves________hydrogen bonding .

Explanation

To determine the type of hydrogen bonding present in salicyaldehyde, we can follow these steps:

### Step 1: Draw the Structure of Salicyaldehyde
Salicyaldehyde is an aromatic compound with the following structure:
- It has a benzene ring.
- A formyl group (-CHO) is attached to the benzene ring.
- The hydroxyl group (-OH) is also attached to the benzene ring.

The structure can be represented as follows:
```
OH
|
C6H4 - CHO
```

### Step 2: Identify the Functional Groups
In salicyaldehyde, we have two functional groups:
1. The hydroxyl group (-OH) which can participate in hydrogen bonding.
2. The aldehyde group (-CHO) which is also capable of forming hydrogen bonds.

### Step 3: Analyze the Potential for Hydrogen Bonding
Hydrogen bonding occurs when a hydrogen atom covalently bonded to an electronegative atom (like oxygen) interacts with another electronegative atom.

### Step 4: Determine the Type of Hydrogen Bonding
In salicyaldehyde, the hydroxyl group can form a hydrogen bond with the carbonyl oxygen of the aldehyde group within the same molecule. This type of bonding occurs between different parts of the same molecule, which is known as **intramolecular hydrogen bonding**.

### Conclusion
Salicyaldehyde involves **intramolecular hydrogen bonding**.

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