Give the monomer of the following
1) Teflon
2) Polystyrene
3) Bakelite

Explanation

To determine the monomers of the given polymers, we can analyze each one individually:

1) **Teflon**:
- Teflon is also known as **polytetrafluoroethylene**.
- The monomer that makes up Teflon is **tetrafluoroethylene**.
- The chemical structure of tetrafluoroethylene is represented as:
\[ \text{CF}_2=\text{CF}_2 \]

2) **Polystyrene**:
- The monomer for polystyrene is **styrene**.
- The chemical structure of styrene is represented as:
\[ \text{C}_6\text{H}_5\text{CH}=\text{CH}_2 \]
- Here, the phenyl group (C6H5) is attached to a vinyl group (CH=CH2).

3) **Bakelite**:
- Bakelite is a type of plastic that is formed from the polymerization of two monomers:
1. **Formaldehyde** (HCHO)
2. **Phenol** (C6H5OH)
- Both of these monomers react to form Bakelite through a condensation reaction.

### Summary of Monomers:
- **Teflon**: Tetrafluoroethylene (CF2=CF2)
- **Polystyrene**: Styrene (C6H5CH=CH2)
- **Bakelite**: Formaldehyde (HCHO) and Phenol (C6H5OH)