# Question #1fbb9

May 4, 2017

A) Nylon has same amide linkage as in protein.

#### Explanation:

Nylon-66 is a polymer made from hexanedioyl chloride and hexane-1,6-diamine.

The repeating unit in Nylon-66 is 14 atoms long.

It has an amide linkage $\left(\text{-CO-NH-}\right)$in the middle and also at each end (marked by the red arrows).

A protein is a polymer of different amino acids with general formula $\text{H"_2"N-CHR-COOH}$.