What is `[-CH_2-OH(C_6H_5)]_n-`?

Options

A. Homopolymer
B. Copolymer
C. Both (1) and (2)
D. Neither (1) nor (2)

Answer

To determine what `[-CH₂-OH(C₆H₅)]_n-` represents, we can break it down step by step.

### Step 1: Identify the Structure
The given structure `[-CH₂-OH(C₆H₅)]_n-` consists of a repeating unit. The notation `[-...-]_n` indicates that this is a polymer, where `n` represents the number of repeating units.

### Step 2: Analyze the Components
- The `-CH₂-` indicates a methylene group.
- The `-OH` indicates a hydroxyl group, which is characteristic of alcohols.
- The `(C₆H₅)` indicates a phenyl group, which is derived from benzene.

### Step 3: Combine the Components
When we combine these components, we see that the repeating unit consists of a methylene group connected to a hydroxyl group and a phenyl group. This suggests that the polymer is formed from a monomer that has both an alcohol and a phenyl group.

### Step 4: Identify the Type of Polymer
Since the repeating unit is the same throughout the polymer, we can classify this as a **homo-polymer**. The presence of the phenyl group indicates that it is likely a type of polymer derived from phenol, specifically poly(ethylene glycol) with phenolic characteristics.

### Conclusion
Thus, the structure `[-CH₂-OH(C₆H₅)]_n-` represents a homo-polymer that consists of repeating units of a methylene group, a hydroxyl group, and a phenyl group.

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