The formation of which of the following polymers involves hydrolysis reaction ?

Options

A. Nylon-6
B. Bakelite
C. Nylon-6,6
D. Terylene

Answer

To determine which polymer formation involves a hydrolysis reaction, we will analyze each option provided in the question step by step.

### Step 1: Understand the Types of Reactions
First, we need to understand the difference between condensation reactions and hydrolysis reactions.
- **Condensation Reaction**: This type of reaction involves the combination of two molecules with the loss of a small molecule, often water.
- **Hydrolysis Reaction**: This is a reaction where a compound is broken down by the addition of water.

### Step 2: Analyze Each Polymer Option
Now, let's analyze the polymers mentioned in the question:

1. **Terylene**:
- Terylene is a polyester formed from the reaction of ethylene glycol and terephthalic acid.
- The reaction involves ester linkages formed through a condensation reaction, not hydrolysis.

2. **Nylon 6-6**:
- Nylon 6-6 is formed from hexamethylenediamine and adipic acid.
- This reaction also involves the formation of amide linkages through condensation, not hydrolysis.

3. **Bakelite**:
- Bakelite is a phenolic resin formed from the condensation of phenol and formaldehyde.
- This process is a condensation reaction, not hydrolysis.

4. **Nylon 6**:
- Nylon 6 is formed from caprolactam, which undergoes hydrolysis.
- The hydrolysis of caprolactam leads to the formation of a zwitterion, which then polymerizes to form nylon 6.

### Step 3: Conclusion
Based on the analysis, the polymer that involves a hydrolysis reaction is **Nylon 6**.

### Final Answer
The formation of **Nylon 6** involves a hydrolysis reaction.

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