Explain the term thermosetting plastics and give two examples.

Explanation

### Step-by-Step Solution:

1. **Definition of Thermosetting Plastics**:
Thermosetting plastics are a type of polymer that, once set into a given shape through a curing process, cannot be remolded or reheated to change their shape. This is due to their cross-linked structure, which makes them rigid and infusible.

2. **Characteristics of Thermosetting Plastics**:
- **Cross-linked Structure**: Thermosetting plastics have a branched, cross-linked molecular structure that provides strength and stability.
- **Strong Forces of Attraction**: The intermolecular forces in thermosetting plastics are strong, which means they do not decompose easily under heat.
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