Conversion of Propionic acid into lactic acid

Explanation

To convert propionic acid into lactic acid, we can follow these steps:

### Step 1: Draw the Structures
First, we need to understand the structures of both compounds.

- **Propionic Acid (C2H5COOH)**: The structure is CH3-CH2-COOH.
- **Lactic Acid (C3H6O3)**: The structure is CH3-CHOH-COOH, which has a hydroxyl group (-OH) at the alpha position (the carbon adjacent to the carboxylic acid).

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