Which of the following linkage is present in 'Teflon'?

Options

A. `H-C`
B. `F-F`
C. `C-C`
D. `C=C`

Explanation

To determine the type of linkage present in Teflon, we need to analyze its structure and the monomer from which it is formed.

### Step-by-Step Solution:

1. **Identify the Monomer of Teflon**:
- Teflon is a polymer made from the monomer tetrafluoroethene (C2F4). This monomer has a structure that includes a carbon-carbon double bond and carbon-fluorine single bonds.

2. **Understand the Polymerization Process**:
- During the polymerization of tetrafluoroethene to form Teflon, the double bond between the carbon atoms in the monomer is broken. This allows the monomers to link together to form a long chain polymer.

3. **Analyze the Structure of Teflon**:
- In the polymerized form of Teflon, the structure consists of repeating units of the tetrafluoroethene monomer. The carbon-carbon bonds formed between the monomers are single bonds (C-C), while the carbon-fluorine bonds (C-F) remain intact.

4. **Determine the Type of Linkage**:
- The main linkage present in Teflon is the carbon-carbon single bond (C-C) that results from the polymerization of the tetrafluoroethene monomers.

5. **Conclusion**:
- Therefore, the correct answer to the question regarding the type of linkage present in Teflon is the carbon single bond carbon (C-C).

### Final Answer:
The linkage present in Teflon is **carbon single bond carbon (C-C)**.