Westrosol is

Options

A. `CHCl = C Cl_2`
B. `C Cl_3 - C Cl_3`
C. `Cl_2 CF_2`
D. `Cl_3 C - NO_2`

Explanation

To solve the question "What is Westerosol?", we need to identify the compound referred to as Westerosol among the given options. Let's break this down step by step.

### Step-by-Step Solution:

1. **Understanding the Question**: We need to determine what compound is referred to as Westerosol from the provided options.

2. **Identifying the Options**: The options given are:
- Option 1: CS3
- Option 2: Cl=CCl2
- Option 3: CCl3
- Option 4: CCl3, CNO2

3. **Researching Westerosol**: From the video transcript, we learn that Westerosol is also known as Acetylene Trichloride or Trichloroethylene.

4. **Chemical Structure of Westerosol**: The transcript mentions that the structure of Westerosol is represented as Cl=CCl2, which indicates a double bond between carbon atoms with chlorine atoms attached.

5. **Matching the Options**: Now, we look at the options again:
- Option 1 (CS3) does not match.
- Option 2 (Cl=CCl2) matches the structure of Westerosol.
- Option 3 (CCl3) does not match.
- Option 4 (CCl3, CNO2) does not match.

6. **Conclusion**: The correct answer is Option 2: Cl=CCl2, which is the chemical structure of Westerosol (Trichloroethylene or Acetylene Trichloride).

### Final Answer:
Westerosol is Cl=CCl2 (Trichloroethylene).

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