Name the process which is used to separate various constituent of petroleum :

Options

A. Lubrication
B. Refining
C. Paraffin
D. None of these

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the name of the process used to separate the various constituents of petroleum.

2. **Identifying the Options**: The options provided include lubrication, refining, and possibly others that were not mentioned in the transcript.

3. **Explaining Lubrication**: Lubrication is a process where oils and fibers are mixed to reduce friction between moving parts. This is not related to separating constituents of petroleum.

4. **Explaining Refining**: Refining is the process specifically used to separate different components of petroleum, such as petrol, diesel, kerosene, etc. This involves heating the petroleum and using fractional distillation to separate its components based on their boiling points.

5. **Conclusion**: Since refining is the correct process that separates various constituents of petroleum, it is the answer to the question.

6. **Final Answer**: The process used to separate various constituents of petroleum is called **refining**.

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