The monomer for Teflon polymer is

Options

A. Monofluoroethene
B. Difluoroethene
C. Trifluoroethene
D. Tetrafluoroethene

Answer

To determine the monomer for the Teflon polymer, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Polymer**: Teflon is a well-known polymer used for its non-stick properties. It is scientifically known as polytetrafluoroethylene (PTFE).

2. **Determine the Monomer**: The monomer that forms Teflon is tetrafluoroethylene. The chemical structure of tetrafluoroethylene is represented as CF2=CF2, which indicates that it contains a double bond between two carbon atoms, each bonded to two fluorine atoms.

3. **Polymerization Process**: Teflon is synthesized through a process called polymerization, where the double bond in tetrafluoroethylene opens up and links together to form long chains of the polymer. This process typically requires a catalyst, such as persulfate.

4. **Chemical Reaction**: The general reaction can be represented as:
\[ n \, \text{CF}_2=\text{CF}_2 \xrightarrow{\text{catalyst}} \text{(CF}_2\text{)}_n \]
where \( n \) indicates the number of monomer units that combine to form the polymer.

5. **Conclusion**: Therefore, the monomer for Teflon polymer is tetrafluoroethylene (CF2=CF2).

### Final Answer:
The monomer for Teflon polymer is tetrafluoroethylene (CF2=CF2).