Give two uses of coal tar.

Explanation

**Step-by-Step Solution:**

1. **Identify the Substance**: Coal tar is a thick, black liquid that is a byproduct of the carbonization of coal. It contains a mixture of various organic compounds.

2. **List Uses of Coal Tar**:
- **Use in Roads**: Coal tar is commonly used in the construction and maintenance of roads. It acts as a binder in asphalt, which is a mixture of aggregates and bitumen used for paving.
- **Use in Soaps and Medicines**: Coal tar is also used in the production of soaps and certain medicinal products. It has therapeutic properties and is often used in shampoos and ointments to treat skin conditions like psoriasis and dandruff.

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