Question

Nylon threads are made up of

• A. Polyamide polymer
• B. Polyethylene polymer
• C. Polyvinyl polymer
• D. Polyester polymer

Answer 1

The correct option is A

Polyamide polymer

Explanation for correct answer

(A) Polyamide polymer

1. Nylon is very durable and remarkable strength, as it is very strong, can get very thin threads of nylon.
2. Polyamides are made when a reaction takes place between diacids and amines example: Nylon 6,6
3. Reaction involved: $\underset{\mathrm{Adipic}\mathrm{acid}}{\mathrm{nHOOC}{\left({\mathrm{CH}}_2\right)}_4\mathrm{C}=\mathrm{OOH}}+\underset{\mathrm{Hexamethylenediammine}}{{\mathrm{nNH}}_2{\left({\mathrm{CH}}_2\right)}_6{\mathrm{NH}}_2}\to \underset{\mathrm{Nylon},6,6}{{[-\mathrm{C}=\mathrm{O}{\left({\mathrm{CH}}_2\right)}_4\mathrm{C}=\mathrm{ONH}{\left({\mathrm{CH}}_2\right)}_6-\mathrm{NH}]}_{\mathrm{n}}}$
4. Hence option (A) is correct.

Explanation for incorrect answer

(B) Polyethylene polymer

1. A polyethylene polymer has ethylene as monomer units and are commonly used in plastics.
2. Hence option (B) is incorrect.

(C) Polyvinyl Polymer

1. Polyvinyl polymer has monomer of vinyl groups.
2. Hence option (C) is incorrect.

(D) Polyester Polymer

1. A polyester polymer has monomer units which are joined together by ester bonds.
2. Hence option (D) is incorrect.

Therefore, Nylon threads are made up of Polyamide polymer. Hence option (A) is correct.