Write chemical equation involved in Cannizzaro's reaction.

Explanation

### Step-by-Step Solution for Cannizzaro's Reaction

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

**Step 2: Identify the Reactants**
- The reactant for this example will be formaldehyde (HCHO), which is an aldehyde without alpha-hydrogens. The reaction takes place in a basic medium, typically using sodium hydroxide (NaOH) or potassium hydroxide (KOH).

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