From where does coal tar is obtained?

Explanation

**Step-by-Step Solution:**

1. **Understanding Coal**: Coal is a natural resource that is mined from the earth. It is primarily composed of carbon and is used as a fuel and for various industrial processes.

2. **Destructive Distillation**: To obtain coal tar, we use a process called destructive distillation. This process involves heating coal in the absence of air (anaerobic conditions).

3. **Products of Destructive Distillation**: During the destructive distillation of coal, several products are formed. These include:
- Coke: A solid carbonaceous material used as a fuel and in steel production.
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