Coal tar is used in manufacture of:

Options

A. synthetic dyes
B. drugs
C. explosives
D. all of these

Explanation

To answer the question "Coal tar is used in manufacture of:", we can follow these steps:

### Step 1: Understand what coal tar is
Coal tar is a thick, black liquid that is a byproduct of the carbonization of coal. It is produced when coal is heated in the absence of air, which is part of the process of making coke.

### Step 2: Identify the components produced from coal
When coal is heated in the absence of air, it produces several products, including:
- Coke
- Coal gas
- Coal tar

### Step 3: Explore the uses of coal tar
Coal tar has various applications in different industries. Some of the notable uses include:
- **Synthetic dyes**: Coal tar is a source of many organic compounds used in the production of synthetic dyes.
- **Drugs**: It is used in the pharmaceutical industry for the manufacture of certain drugs.
- **Explosives**: Coal tar derivatives are also utilized in the production of explosives.
- **Naphtha**: Coal tar is a source of naphtha, which is used as a solvent and in the production of chemicals.
- **Paints and perfumes**: Coal tar is used in the formulation of paints and perfumes.
- **Photographic materials**: Some components derived from coal tar are used in photographic materials.

### Step 4: Conclusion
Given the various applications of coal tar, we can conclude that it is used in the manufacture of synthetic dyes, drugs, explosives, and many other products. Therefore, the correct answer to the question is "all of these".

### Final Answer
Coal tar is used in the manufacture of synthetic dyes, drugs, explosives, and more. Thus, the answer is **all of these**.

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