search

mMCQ.

Navigation Menu

Step into mMCQ.

Launch mMCQ. diagnostic

Explore mMCQ.

MDCAT prepFree DiagnosticPricing & SubscribeSign in

Resources

Terms & Conditions

mMCQ.

© 2021 - 2025 mMCQ.All rights reserved.

  1. Home
  2. MDCAT
  3. Chemistry
  4. Macromolecules
MDCAT
Chemistry
2017

Chemistry · Macromolecules

Work through this past-paper style MCQ, then read the full explanation. Practice more chemistry questions on mMCQ with adaptive drills and topic analytics.

Question

The amide linkage in Nylon-6,6 has the structure:

Options
  • A

    –NH2–CO–

  • B

    –CO-O-

  • C

    –NH–CO–

  • D

    –NH–O–CO–

Explanation

Amide linkage is a covalent bond between COOH and NH2 of the amino acid. The linkage is CONH and a water molecule is eliminated.

This option is incorrect.

In 6,6 Nylon, the monomers are Hexamethylenediamine and Adipic acid. As far as amide linkage is concerned, it is the bond between COOH and NH2 where a water molecule is eliminated.

This option is incorrect.

In 6,6 Nylon, the monomers are Hexamethylenediamine and Adipic acid. As far as amide linkage is concerned, it is the bond between COOH and NH2 where a water molecule is eliminated.

In 6,6 Nylon, the monomers are Hexamethylenediamine and Adipic acid. As far as amide linkage is concerned, it is the bond between COOH and NH2 where a water molecule is eliminated.

This option is incorrect.

In 6,6 Nylon, the monomers are Hexamethylenediamine and Adipic acid. As far as amide linkage is concerned, it is the bond between COOH and NH2 where a water molecule is eliminated.

Keep practising Chemistry

Take the free 2 minutes diagnostic to map weak topics, then unlock full Biology, Chemistry, Physics, English, and Reasoning practice for PKR 15,000/month.

Start free diagnosticExplore MDCAT

Tagged under Chemistry · Macromolecules · 2017