Which of the following polymers is are chlorinated?

Options

A. Neoprene
B. PVC
C. Both (1) & (2)
D. Polythene

Answer

To determine which of the given polymers are chlorinated, we need to analyze the monomeric units of each polymer. The polymers in question are neoprene, PVC (polyvinyl chloride), and polythene.

### Step-by-Step Solution:

1. **Identify the Monomers**:
- **Neoprene**: The monomer for neoprene is chloroprene, which has the chemical structure CH2=CH-C(=CH2)Cl.
- **PVC (Polyvinyl Chloride)**: The monomer for PVC is vinyl chloride, which has the chemical structure CH2=CHCl.
- **Polythene**: The monomer for polythene is ethene, which has the chemical structure CH2=CH2.

2. **Examine the Presence of Chlorine**:
- **Neoprene**: The monomer chloroprene contains a chlorine atom (Cl).
- **PVC**: The monomer vinyl chloride also contains a chlorine atom (Cl).
- **Polythene**: The monomer ethene does not contain any chlorine atoms.

3. **Conclusion**:
- Since both neoprene and PVC have monomers that contain chlorine, they are considered chlorinated polymers.
- Polythene does not contain chlorine in its monomer and is therefore not chlorinated.

### Final Answer:
The chlorinated polymers among the options are **neoprene and PVC**. Thus, the correct answer is **both first and second option (C)**.