Which of the following is a natural polymer?

Options

A. Bakelite
B. Cellulose
C. PVC
D. Nylon

Explanation

To determine which of the following is a natural polymer, we need to analyze each option provided:

1. **Bakelite**: This is a synthetic polymer, created through the polymerization of phenol and formaldehyde. It is used in various applications such as electrical insulators and kitchenware.

2. **Cellulose**: This is a natural polymer found in the cell walls of plants. It is made up of glucose units and is the most abundant organic polymer on Earth. Cellulose is used in the production of paper and textiles.

3. **PVC (Polyvinyl Chloride)**: This is also a synthetic polymer made from the polymerization of vinyl chloride. It is widely used in construction materials, plumbing, and electrical cable insulation.

4. **Nylon**: This is another synthetic polymer, created through the condensation polymerization of diamines and dicarboxylic acids. It is commonly used in textiles and engineering applications.

Based on the analysis of the options:

- **Natural Polymer**: Cellulose (Option B)
- **Synthetic Polymers**: Bakelite (Option A), PVC (Option C), and Nylon (Option D)

Thus, the correct answer is **Option B: Cellulose**.