Which of the following will act as inhibitor in free radical addition polymerisation?

Options

A.
B. `"CC"l_(4)`
C. `CBr_(4)`
D. `H-Br`

Answer

To determine which of the given options acts as an inhibitor in free radical addition polymerization, we need to analyze the characteristics of each compound listed in the options.

### Step-by-Step Solution:

1. **Understanding Free Radical Addition Polymerization**:
- Free radical addition polymerization involves the formation of free radicals that initiate the polymerization process. Inhibitors are substances that can prevent or slow down this reaction by reacting with free radicals.

2. **Analyzing the Options**:
- **Option A: Arbentetra Chloride**: This compound does not have properties that are typically associated with inhibitors in free radical polymerization.
- **Option B: Arbentetra Bromide**: Similar to option A, this compound does not exhibit the characteristics of an inhibitor.
- **Option C: Benzoquinone**: This is a well-known inhibitor in free radical polymerization. It can react with free radicals, thus preventing the polymerization process.
- **Option D: HBr**: Hydrogen bromide does not act as an inhibitor in this context.

3. **Identifying the Inhibitor**:
- Among the options, Benzoquinone (Option C) is the only compound that can effectively act as an inhibitor in free radical addition polymerization due to its ability to react with free radicals.

4. **Conclusion**:
- The correct answer is **Benzoquinone** as it acts as an inhibitor in free radical addition polymerization.

### Final Answer:
Benzoquinone is the compound that acts as an inhibitor in free radical addition polymerization.

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