Give one chemical test to distinguish between the following pairs of compounds :
Ethanol and dimethyl ether

Explanation

To distinguish between ethanol (C2H5OH) and dimethyl ether (CH3OCH3), we can perform a chemical test using sodium metal. Here’s a step-by-step solution:

### Step 1: Identify the Compounds
- Ethanol is an alcohol with the chemical formula C2H5OH.
- Dimethyl ether is an ether with the chemical formula CH3OCH3.

### Step 2: Perform the Test
- Take a small amount of each compound in separate test tubes.
...