p-Hydroxybenzaldehyde does not undergo Cannizzaro reaction. Explain.

Explanation

**Step-by-Step Solution:**

1. **Understanding the Cannizzaro Reaction:**
The Cannizzaro reaction is a redox reaction that occurs in aldehydes that do not have alpha hydrogen atoms. In this reaction, one molecule of the aldehyde is oxidized to a carboxylic acid while another molecule is reduced to an alcohol.

2. **Analyzing p-Hydroxybenzaldehyde Structure:**
p-Hydroxybenzaldehyde (C7H6O2) has the following structure:
- It consists of a benzene ring with a hydroxyl group (-OH) at the para position and an aldehyde group (-CHO) attached to the benzene ring.
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