Identify the heteropolymer from the list given below :

Options

A. Polythene
B. Nylon-6
C. Teflon
D. Nylon6 , 6

Explanation

To identify the heteropolymer from the given options, we need to understand the definitions of homopolymers and heteropolymers.

### Step-by-Step Solution:

1. **Understand the Definition of Polymers**:
- Polymers are large macromolecules made up of repeating units called monomers.
- **Homopolymer**: A polymer made from only one type of monomer.
- **Heteropolymer**: A polymer made from two or more different types of monomers.

2. **Analyze the Given Options**:
- **Polythene**:
- Made from ethylene (CH2=CH2).
- It consists of only one type of monomer (ethylene).
- **Conclusion**: Polythene is a homopolymer.

- **Nylon 6**:
- Made from caprolactam.
- It consists of only one type of monomer (caprolactam).
- **Conclusion**: Nylon 6 is a homopolymer.

- **Teflon (PTFE)**:
- Made from tetrafluoroethylene (CF2=CF2).
- It consists of only one type of monomer (tetrafluoroethylene).
- **Conclusion**: Teflon is a homopolymer.

- **Nylon 6,6**:
- Made from two different monomers: hexamethylenediamine and adipic acid.
- It consists of two different types of monomers.
- **Conclusion**: Nylon 6,6 is a heteropolymer.

3. **Final Conclusion**:
- Among the options provided, **Nylon 6,6** is the only heteropolymer as it is made from two different monomer units.

### Answer:
The heteropolymer from the list is **Nylon 6,6**.