An example of thermosetting plastics is

Options

A. polythene
B. bakelite
C. PVC
D. polystyrene

Answer

**Step-by-Step Solution:**

1. **Understanding Thermosetting Plastics**: Thermosetting plastics are a type of polymer that, once set into a given shape, cannot be remolded or reheated. This is due to the cross-linking of polymer chains during the curing process, which creates a rigid structure.

2. **Characteristics of Thermosetting Plastics**: These plastics are known for their durability and resistance to heat and chemicals. They are typically used in applications where strength and heat resistance are critical.

3. **Examples of Thermosetting Plastics**: Common examples of thermosetting plastics include:
- **Bakelite**: Often used in electrical insulators and kitchenware.
- **Melamine**: Commonly used in laminates and dinnerware.
- **Polyester Resins**: Used in fiberglass and automotive parts.
- **Epoxy Resins**: Used in adhesives, coatings, and composite materials.

4. **Conclusion**: Based on the characteristics and examples provided, one can conclude that Bakelite is a well-known example of thermosetting plastic.

**Final Answer**: An example of thermosetting plastics is Bakelite.

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