Question

Perlon is:
a.) terylene
b.) nylon-6
c.) rubber
d.) polyester

Answer 1

Hint: A polymer is a substance which consists of very large molecules or macromolecules which is composed of many repeating units. They have different properties depending upon the type of bonds and molecules present.

Complete step by step solution:
Terylene (also known as Dacron) is a synthetic polyester fiber which is made by polymerizing ethylene glycol and terephthalic acid which is obtained from petroleum.
Nylon-6 is also called Perlon. It is formed by the heating of caprolactam with water at high temperature. It is used for the manufacture of tyre cords, fabrics and ropes.
Natural Rubber is a natural polymer which possesses elastic properties. It is manufactured from latex, which is obtained from the bark of rubber trees. It is considered as the linear polymer isoprene (2-methyl 1,3 butadiene) it consists of chains joined together by Van der Waals interactions. It can be easily stretched.
Synthetic rubbers are a vulcanized rubber which can be stretched up to twice its length. They are homopolymers of 1,3 butadiene or copolymers of 1,3 butadiene.
Two types of synthetic rubbers:
Neoprene: formed by the free radical mechanism of chloroprene. It is used in manufacture of conveyor belts and gaskets.
Buna-N: formed by the copolymerization of 1,3 butadiene and acrylonitrile. It is used in the manufacture of oil seals and tank linings.
Polyesters are formed by the polycondensation of dicarboxylic acids and diols. Terylene is the best example of polyesters.
Therefore, from the above statements we can conclude that Perlon is Nylon-6. So, the correct option is (b).

Note: Don't get confused between Nylon-6 and Nylon 6,6. Nylon 6,6 is obtained by the condensation polymerization of hexamethylenediamine with adipic acid under high pressure and high temperature.