name one reagent which is used for the distinction of primary, secondary and tertiary alcohols. Or What is Lucas reagent?

Explanation

### Step-by-Step Solution:

1. **Identify the Reagent:**
The reagent used for the distinction of primary, secondary, and tertiary alcohols is known as Lucas reagent.

2. **Composition of Lucas Reagent:**
Lucas reagent is composed of anhydrous zinc chloride (ZnCl2) and hydrochloric acid (HCl). It is often represented as ZnCl2 + HCl.

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