I. Caprolactam is the monomer of nylon-6.
II. Dacron is the monomer of ethylene glycol.
III. Orlon is the monomer of polyacrylonitrile.
Which of the above mentioned statements(s) is /are correct ? Choose the correct option.

Options

A. Only I
B. Only II
C. Only III
D. II and III

Answer

To determine which of the statements regarding the monomers of various polymers are correct, we will analyze each statement one by one.

### Step 1: Analyze the first statement
**Statement I:** Caprolactam is the monomer of nylon-6.

- **Explanation:** Caprolactam is indeed the monomer used to produce nylon-6. It undergoes polymerization to form nylon-6, which consists of repeating units derived from caprolactam. The structure of caprolactam features a 7-membered ring that opens up during the polymerization process to form the nylon-6 polymer.

**Conclusion:** This statement is **correct**.

### Step 2: Analyze the second statement
**Statement II:** Dacron is the monomer of ethylene glycol.

- **Explanation:** This statement is incorrect. Dacron is actually a brand name for a type of polyester, which is formed from the polymerization of ethylene glycol and terephthalic acid. Ethylene glycol is one of the monomers used to create Dacron, not the other way around. Therefore, the statement incorrectly suggests that Dacron is a monomer.

**Conclusion:** This statement is **incorrect**.

### Step 3: Analyze the third statement
**Statement III:** Orlon is the monomer of polyacrylonitrile.

- **Explanation:** This statement is also incorrect. Orlon is a trade name for a type of acrylic fiber, which is made from the polymerization of acrylonitrile. The monomer for polyacrylonitrile is acrylonitrile itself, not Orlon. Therefore, this statement is misleading.

**Conclusion:** This statement is **incorrect**.

### Final Conclusion
After analyzing all three statements, we find that only the first statement is correct. Therefore, the correct option is:

**Only Statement I is correct.**

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