Question

Identify the fibres, $P,Q$ and $R$ using the given hints.
$P.$ It does not get wrinkled easily, remains crisp and is easy to wash.
$Q.$ It was the first fully synthetic fibre.
$R.$ Although it is obtained from a natural source, yet it is a man-made fibre.

• A. P - Rayon, Q - Polythene, R - Terylene
• B. P - Polyester, Q - Nylon, R - Rayon
• C. P - Nylon, Q - Polythene, R - Bakelite
• D. P - Melamine, Q - Nylon, R - Polyester

Answer 1

Answer: (B)

P - Polyester, Q - Nylon, R - Rayon

Polyester is a category of polymers that contain the ester functional group in their main chain. It does not get wrinkled easily, remains crisp and is easy to wash.

Nylon is a generic designation for a family of synthetic polymers, based on aliphatic or semi-aromatic polyamides. Nylon is a thermoplastic silky material that can be melt-processed into fibres, films, or shapes. It is made of repeating units linked by amide links similar to the peptide bonds in proteins. It was the first fully synthetic fibre.

Rayon is a regenerated cellulose fibre that is made from natural sources of cellulose, such as wood and related agricultural products. It has the same molecular structure as cellulose. Although it is obtained from a natural source, yet it is a man-made fibre.