The condensation of hexamethylenediamine with sebacoyl chloride at 525 K gives

Options

A. nylon-6,20
B. nylon-6,01
C. nylon-6,10
D. None of these

Explanation

To solve the question regarding the condensation of hexamethylenediamine with sebacoyl chloride at 525 K, we will follow these steps:

### Step 1: Identify the Reactants
- **Hexamethylenediamine**: This is a diamine with the formula \( H_2N(CH_2)_6NH_2 \). It contains two amine groups (-NH2).
- **Sebacoyl Chloride**: This is a dicarboxylic acid chloride with the formula \( Cl-(CO-(CH_2)_8-CO) \). It contains two acyl chloride groups.

### Step 2: Understand the Reaction Type
- The reaction between hexamethylenediamine and sebacoyl chloride is a **condensation polymerization** reaction. In this type of reaction, monomers combine to form a polymer while releasing small molecules, typically water or hydrogen chloride (HCl).

### Step 3: Write the Reaction
- When hexamethylenediamine reacts with sebacoyl chloride, the amine groups react with the acyl chloride groups to form amide bonds. The reaction can be summarized as:

\[ n \, H_2N(CH_2)_6NH_2 + n \, Cl-(CO-(CH_2)_8-CO) \rightarrow \text{Polymer} + n \, HCl \]

### Step 4: Determine the Structure of the Polymer
- The repeating unit of the polymer will consist of the amide bond formed between the hexamethylenediamine and sebacoyl chloride. The structure of the repeating unit can be represented as:

\[ -NH-(CH_2)_6-NH-CO-(CH_2)_8-CO- \]

### Step 5: Count the Carbon Atoms
- In hexamethylenediamine, there are 6 carbon atoms.
- In sebacoyl chloride, there are 8 carbon atoms.
- Therefore, the total number of carbon atoms in the repeating unit of the polymer is \( 6 + 8 = 14 \).

### Step 6: Name the Polymer
- The polymer formed from hexamethylenediamine and sebacoyl chloride is known as **Nylon 610**. The naming convention for nylons is based on the number of carbon atoms in the diamine and the dicarboxylic acid used.

### Final Answer
The condensation of hexamethylenediamine with sebacoyl chloride at 525 K gives **Nylon 610**.

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