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NEET levelSingle correct optionDifficulty 1 of 3pl059

The characteristic linkage joining the monomer units in nylon 6,6 is

Aan ester linkage, $- CO - O X^{-}$
Ban ether linkage, $- C - O - C X^{-}$
Ca glycosidic linkage
Dan amide linkage, $- CO - NH X^{-}$

Answer: D

The carboxyl groups of adipic acid react with the amino groups of hexamethylenediamine to form peptide-type (amide) bonds,

- CO - NH X^{-}

.

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