How will you convert acetaldehyde into the following compounds ?
Butanoic acid

Explanation

To convert acetaldehyde (CH3CHO) into butanoic acid (CH3CH2CH2COOH), we can follow these steps:

### Step 1: Self-Condensation of Acetaldehyde
- **Reaction**: Take two molecules of acetaldehyde (CH3CHO) and mix them with dilute sodium hydroxide (NaOH).
- **Process**: This will undergo aldol condensation to form 3-hydroxybutanal (also known as aldol).
- **Equation**:
\[
2 \, \text{CH}_3\text{CHO} \xrightarrow{\text{dil. NaOH}} \text{CH}_3\text{CH(OH)CH}_2\text{CHO}
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