Which is the correct structure of Nylon-6

Options

A. 1. ` [ - overset(O)overset("||")C - (CH _2) _ 5 - overset(H) overset( | ) N - ] _ n `
B. 2.` [ - ( CH _ 2 ) _ 6 - overset(O) overset("||") C - overset(H) overset( |) N - ] _ n `
C. 3. ` [- (CH _ 2 ) _ 4 - overset(O) overset( "||")C - overset(H ) overset( |) N - ] `
D. 4.`[ - overset( O) overset( "||")C - (CH _ 2 ) _ 6 - overset( H) overset( |) (N ) - ] _ n `

Explanation

To determine the correct structure of Nylon-6, we need to understand its formation from the monomer caprolactam. Here’s a step-by-step breakdown of the solution:

### Step 1: Identify the Monomer
Nylon-6 is derived from the monomer caprolactam. The structure of caprolactam is crucial for understanding how Nylon-6 is formed.

### Step 2: Structure of Caprolactam
Caprolactam has a six-membered ring with one nitrogen atom. The molecular formula of caprolactam is C6H11NO. The structure can be represented as follows:
- It contains 6 carbon atoms (C).
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