How is polythene prepared from ethene ? Give chemical equation only

Explanation

To prepare polythene from ethene, we can represent the process of addition polymerization with a chemical equation. Here’s a step-by-step breakdown of the preparation:

### Step 1: Identify the Monomer
The monomer used for the preparation of polythene is ethene, which has the chemical formula:
\[ \text{C}_2\text{H}_4 \]
This can also be written as:
\[ \text{CH}_2=\text{CH}_2 \]

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