Which one of the following is used to make `'` non`-`stick `'` cookware ?

Options

A. PVC
B. Polystyrene
C. Polethylene terephthalate
D. Polytetrafluoro ethylene

Explanation

To determine which polymer is used to make non-stick cookware, we will analyze each option provided:

1. **PVC (Polyvinyl Chloride)**:
- PVC is a polymer derived from vinyl chloride.
- It is commonly used in applications such as water pipes, vinyl siding, and flooring.
- **Conclusion**: PVC is not used for non-stick cookware.

2. **Polystyrene**:
- Polystyrene is a polymer made from the monomer styrene.
- It is primarily used for insulation in products like televisions and radios.
- **Conclusion**: Polystyrene is not used for non-stick cookware.

3. **Polyethylene Terephthalate (PET)**:
- PET is a polymer known for its use in fibers for clothing and containers for liquids and food storage.
- It is widely used in the production of plastic bottles and food packaging.
- **Conclusion**: PET is not used for non-stick cookware.

4. **Polytetrafluoroethylene (PTFE)**:
- PTFE is also known as Teflon.
- It is specifically used for creating non-stick coatings on cookware.
- **Conclusion**: PTFE is the correct polymer used for non-stick cookware.

**Final Answer**: The polymer used to make non-stick cookware is **Polytetrafluoroethylene (PTFE)**, commonly known as Teflon.

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