Give one chemical test to distinguish between the following pairs of compounds :
Ethanol and 2 propanol.

Explanation

To distinguish between ethanol (a primary alcohol) and 2-propanol (a secondary alcohol), we can use the Lucas reagent, which is a mixture of anhydrous zinc chloride (ZnCl2) and concentrated hydrochloric acid (HCl).

### Step-by-Step Solution:

1. **Prepare Lucas Reagent**:
- Mix anhydrous ZnCl2 with concentrated HCl to prepare Lucas reagent.

2. **Add the Alcohols**:
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