Which plastic is obtained from `CHCl_3` as follows
`CHCl_3 overset(HF)underset(SbF_3)(rarr)X overset(800^@C)(rarr)Y overset("Polymerisation")(rarr)`Plastic

Options

A. Bakelite
B. Teflon
C. Polythene
D. Perspex

Explanation

To solve the problem, we need to analyze the given reactions step by step to identify the plastic obtained from `CHCl3`.

### Step-by-Step Solution:

1. **Identify the Starting Material**:
The starting material is `CHCl3`, which is chloroform.

2. **Reaction with HF and SbF3**:
When `CHCl3` reacts with HF in the presence of SbF3 (antimony trifluoride), it undergoes a transformation. The reaction can be represented as:
\[ CHCl_3 + HF \xrightarrow{SbF_3} CHClF_2 \]
This product is dichlorofluoromethane (or chlorodifluoromethane).

3. **Thermal Decomposition**:
The next step involves heating the product `CHClF2` at a high temperature (800°C):
\[ CHClF_2 \xrightarrow{800^\circ C} C_2F_4 + HCl \]
This reaction leads to the formation of tetrafluoroethylene (C2F4).

4. **Polymerization**:
The final step is the polymerization of tetrafluoroethylene (C2F4):
\[ nC_2F_4 \xrightarrow{Polymerization} (C_2F_4)_n \]
This process results in the formation of polytetrafluoroethylene (PTFE), commonly known as Teflon.

5. **Conclusion**:
Therefore, the plastic obtained from the given reactions is Teflon.

### Final Answer:
The plastic obtained from `CHCl3` through the described reactions is **Teflon (PTFE)**.

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