What are thermosetting plastics? Give two examples.

Explanation

**Step-by-Step Solution:**

1. **Definition of Thermosetting Plastics**:
Thermosetting plastics are a type of polymer that, once they are molded into a specific shape, cannot be remolded or softened by heating. This is due to the chemical bonds that form during the curing process, which make the material rigid and stable.

2. **Characteristics of Thermosetting Plastics**:
- They are hard and durable.
- They maintain their shape and strength even at high temperatures.
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