In the name Nylon-6,6, the numbers 6,6 represents

Options

A. the number of monomer molecules from which the polymer formed
B. types of monomer from which the polymer formed
C. number of carbon atoms present in the types of monomers from which the polymer formed
D. number of xygen atoms present in the two types of monomers from which the polymer formed

Answer

To understand what the numbers 6,6 represent in the name Nylon-6,6, we need to analyze the components that make up this polymer.

### Step-by-Step Solution:

1. **Identify the Monomers**: Nylon-6,6 is synthesized from two specific monomers: hexamethylenediamine and adipic acid.

2. **Count the Carbon Atoms in Each Monomer**:
- **Hexamethylenediamine**: This monomer has a structure that contains 6 carbon atoms. Its formula can be represented as H2N(CH2)6NH2, indicating that there are 6 methylene (-CH2-) groups.
- **Adipic Acid**: This monomer also contains 6 carbon atoms. Its structure can be represented as HOOC-(CH2)4-COOH, which also shows that there are 6 carbon atoms.

3. **Understanding the Numbers in Nylon-6,6**: The name Nylon-6,6 indicates that both monomers used in the polymerization process contribute 6 carbon atoms each. Therefore, the first '6' refers to the number of carbon atoms in hexamethylenediamine, and the second '6' refers to the number of carbon atoms in adipic acid.

4. **Conclusion**: Thus, the numbers 6,6 in Nylon-6,6 represent the number of carbon atoms in each of the two monomers that are used to produce the nylon polymer.

### Final Answer:
In Nylon-6,6, the numbers 6,6 represent the number of carbon atoms in the two monomers: hexamethylenediamine and adipic acid, each containing 6 carbon atoms.

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