What is the product obtained when two molecules of ethyne and one molecule of propyne undergoes cyclic polymeristion when the mixture is passed through red hot iron tube?

Explanation

To solve the question regarding the product obtained when two molecules of ethyne and one molecule of propyne undergo cyclic polymerization when passed through a red hot iron tube, we can follow these steps:

### Step 1: Identify the Reactants
We have:
- 2 molecules of ethyne (C2H2)
- 1 molecule of propyne (C3H4)

### Step 2: Write the Structural Formulas
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