The molecular formula of hexamethylene diamine adipate (monomer of nylon-6,6) is

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$C_{12} H_{22} O_{2} N_{2}$

$C_{10} H_{26} O_{4} N_{2}$

$C_{12} H_{26} O_{4} N_{2}$

$C_{12} H_{24} O_{3} N_{2}$

answer is D.

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Detailed Solution

Explanation:

Hexamethylene diamine adipate is the monomer used to produce nylon-6,6 through polycondensation. It is formed by reacting:

Hexamethylene diamine ($ C_6H_{16}N_2 $): A compound with two amine (-NH₂) groups.
Adipic acid ($ C_6H_{10}O_4 $): A dicarboxylic acid with two -COOH groups.

These two molecules react to form the monomer by combining one -NH₂ group from hexamethylene diamine with one -COOH group from adipic acid, eliminating a water molecule.

Molecular Formula:

The molecular formula of hexamethylene diamine adipate is:

$ C_{12}H_{24}O_3N_2 $

Answer: The molecular formula of hexamethylene diamine adipate is Option d: $ C_{12}H_{24}O_3N_2 $.

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