Coke, coal gas and coal tar are products of

Options

A. destructive distillation of wood
B. destructive distillation of coal
C. dissolving the coal in water
D. burning wood in air.

Explanation

To answer the question "Coke, coal gas, and coal tar are products of," we need to understand the process through which these products are obtained.

### Step-by-Step Solution:

1. **Understanding the Process**: The products coke, coal gas, and coal tar are obtained through a specific process involving coal. This process is known as **destructive distillation**.

2. **Destructive Distillation**: Destructive distillation is the process of heating coal in the absence of air. This prevents combustion and allows the coal to break down into various components.

3. **Products of Destructive Distillation**:
- **Coke**: This is a solid carbonaceous residue that remains after the volatile substances in coal are driven off. It is primarily made up of carbon and is used as a fuel and in the production of steel.
- **Coal Gas**: This is a gaseous product that contains a mixture of gases, primarily hydrogen, methane, and carbon monoxide. It is used as a fuel for heating and lighting.
- **Coal Tar**: This is a thick, black liquid that is a by-product of the destructive distillation of coal. It contains a variety of organic compounds and is used in the production of chemicals, dyes, and pharmaceuticals.

4. **Conclusion**: Therefore, the correct answer to the question is that coke, coal gas, and coal tar are products of the **destructive distillation of coal**.

### Final Answer:
Coke, coal gas, and coal tar are products of the destructive distillation of coal.