How would you prepare propyne from acetylene ?

Explanation

To prepare propyne from acetylene, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Structures**:
- Acetylene (ethyne) has the structure: \( \text{C} \equiv \text{C} \) (or \( \text{CH}_3 \text{C} \equiv \text{C} \)).
- Propyne has the structure: \( \text{CH}_3 \text{C} \equiv \text{C} \).

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