________is used to make things such as pesticides, perfumes, naphthalene balls and paints.

Options

A. coke
B. Coal tar
C. Coal gas
D. Peat

Answer

To solve the question, we need to identify which substance is used to make pesticides, perfumes, naphthalene balls, and paints from the given options: Coke, coal tar, coal gas, and peat.

### Step-by-Step Solution:

1. **Understand the Question**: The question asks for a substance that is used to manufacture several products including pesticides, perfumes, naphthalene balls, and paints.

2. **Analyze the Options**:
- **Coke**: This is a solid carbonaceous material derived from coal, primarily used as a fuel and reducing agent in metallurgy. It is not typically used for making the products listed.
- **Coal Tar**: This is a thick, black liquid that is a byproduct of the carbonization of coal. It contains various organic compounds and is known to be used in the production of many chemicals.
- **Coal Gas**: This is a gas produced from coal, mainly used as a fuel for heating and cooking. It does not have direct applications in making the products mentioned.
- **Peat**: This is an accumulation of partially decayed vegetation or organic matter. It is primarily used as a fuel and soil conditioner, not for making the specified products.

3. **Identify the Correct Answer**: Among the options, coal tar is known for its use in the production of various chemicals, including those used for pesticides, perfumes, naphthalene balls, and paints. This is done through a process called fractional distillation, where different components are separated based on their boiling points.

4. **Conclusion**: The correct answer to the question is **coal tar**.

### Final Answer:
**Coal tar** is used to make things such as pesticides, perfumes, naphthalene balls, and paints.

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