Which of the following polymeric material will be ideal for remoulding ?

Options

A. Polythene and Melamine
B. Polyvinyl chloride and Polythene
C. Melamine and Bakelite
D. Bakelite and Polyvinyl chloride

Explanation

To determine which polymeric material is ideal for remolding, we need to understand the characteristics of different types of polymers.

### Step-by-Step Solution:

1. **Identify Types of Polymers**:
- There are two main types of polymers: thermoplastic and thermosetting polymers.
- Thermoplastic polymers can be remolded upon heating, while thermosetting polymers cannot.

2. **Understand Thermoplastic Polymers**:
- Thermoplastic polymers become soft and moldable when heated and solidify upon cooling. This property allows them to be reshaped multiple times without significant chemical change.
- Examples include PVC (polyvinyl chloride) and polyethylene.

3. **Understand Thermosetting Polymers**:
- Thermosetting polymers, once set into a shape, cannot be remolded. They do not soften upon heating after the initial setting process.
- Examples include Bakelite and Melamine.

4. **Conclusion**:
- Since the question asks for polymeric materials that are ideal for remolding, we conclude that thermoplastic polymers are the correct choice.
- Therefore, options like PVC and polyethylene are ideal for remolding.

5. **Final Answer**:
- The ideal polymeric materials for remolding are thermoplastic polymers such as PVC and polyethylene.