Which polymer manufactured by condensation polymerization is

Options

A. Polyester
B. polystyrene
C. polyethylene propylene
D. Polyvinyl chloride

Explanation

To determine which polymer is manufactured by condensation polymerization, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Types of Polymerization**:
- There are two main types of polymerization: condensation polymerization and addition polymerization.
- In **addition polymerization**, monomers are added together without the loss of any small molecules.
- In **condensation polymerization**, monomers join together and lose small molecules (like water, methanol, etc.) as by-products during the reaction.

2. **Identify the Given Options**:
- The options provided are:
- Polyester
- Polystyrene
- Polyethylene
- Propylene
- Polyvinyl Chloride (PVC)

3. **Analyze Each Option**:
- **Polyester**: This is a polymer formed through condensation polymerization. It is made by the reaction of diols and dicarboxylic acids, releasing water as a by-product.
- **Polystyrene**: This is produced by addition polymerization of styrene monomers.
- **Polyethylene**: This is produced by addition polymerization of ethylene monomers.
- **Propylene**: This is also produced by addition polymerization of propylene monomers.
- **Polyvinyl Chloride (PVC)**: This is produced by addition polymerization of vinyl chloride monomers.

4. **Conclusion**:
- From the analysis, the only polymer that is manufactured by condensation polymerization is **Polyester**.

### Final Answer:
The polymer manufactured by condensation polymerization is **Polyester**.

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