Question

Rayon yarns are obtained from

• A. Polymethylene
• B. Polyesters
• C. Cellulose
• D. Styrene

Hint:

Rayon is regenerated cellulose and is commonly called artificial silk.

Answer 1

The Correct Option is C

Concept:
Rayon is a semi-synthetic fibre. It is also called artificial silk because it resembles silk in appearance. Rayon is made from cellulose obtained from natural sources like wood pulp.

Step 1: Understand cellulose.
Cellulose is a natural polymer. It is found in plant cell walls. It is made up of glucose units linked together.

Step 2: Understand rayon preparation.
Cellulose is chemically treated and then regenerated into fibres. These regenerated cellulose fibres are called rayon. So: \[ \text{Cellulose} \rightarrow \text{Rayon} \]

Step 3: Check the options.
Option (A) polymethylene is not the source of rayon.
Option (B) polyesters are synthetic polymers, not rayon source.
Option (C) cellulose is correct.
Option (D) styrene is used to make polystyrene, not rayon. Hence, the correct answer is: \[ \boxed{(C)\ \text{Cellulose}} \]