Inorganic polymer among the following is

Options

A. Rayon
B. Starch
C. Silicone rubber
D. Natural rubber

Answer

To determine which of the given options is an inorganic polymer, we can analyze each option based on its chemical composition.

### Step-by-Step Solution:

1. **Identify the Options**: The options given are:
- Rayon
- Starch
- Silicon rubber
- Natural rubber

2. **Analyze Rayon**:
- Rayon is a synthetic fiber made from regenerated cellulose. It primarily consists of carbon (C), hydrogen (H), and oxygen (O).
- **Conclusion**: Rayon is an organic polymer.

3. **Analyze Starch**:
- Starch is a carbohydrate made up of glucose units, which are organic compounds containing carbon, hydrogen, and oxygen.
- **Conclusion**: Starch is an organic polymer.

4. **Analyze Silicon Rubber**:
- Silicon rubber is made from silicon (Si) and oxygen (O), and it does not contain carbon in its backbone structure.
- **Conclusion**: Silicon rubber is an inorganic polymer.

5. **Analyze Natural Rubber**:
- Natural rubber is a polymer made from isoprene, which consists of carbon and hydrogen.
- **Conclusion**: Natural rubber is an organic polymer.

6. **Final Conclusion**:
- Among the options provided, the only inorganic polymer is **Silicon rubber**.

### Answer:
The inorganic polymer among the following is **Silicon rubber**.

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