Give chemical tests to detect the presence of ethanoic acid.

Explanation

To detect the presence of ethanoic acid (acetic acid, CH3COOH), you can perform the following chemical tests:

### Step-by-Step Solution:

1. **Sodium Bicarbonate Test**:
- **Procedure**: Take a small amount of the suspected ethanoic acid in a test tube. Add a few drops of sodium bicarbonate (NaHCO3) to it.
- **Observation**: If ethanoic acid is present, you will observe the evolution of carbon dioxide (CO2) gas. This is indicated by the formation of bubbles or fizzing.
- **Chemical Reaction**: The reaction can be represented as:
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