Question

What is a starting material used to obtain viscose rayon ?

• A. Styrene
• B. Cellulose
• C. Acrylamide
• D. Bisphenol

Hint:

Viscose rayon is regenerated cellulose, made from wood pulp.

Answer 1

The Correct Option is B

Step 1: Identify the type:
Rayon is made from a natural polymer rather than from monomers like synthetic fibres, so its raw material is a plant polymer, which is cellulose from wood pulp.

Step 2: Process in brief:
Cellulose reacts with NaOH and $\text{CS}_2$ to form cellulose xanthate, dissolved to give viscose. Extruding this into an acid bath regenerates cellulose threads.

Step 3: Check the others:
Styrene, acrylamide and bisphenol are all synthetic monomers for other polymers.

Final Answer:
Option (B). \[ \boxed{\text{Cellulose (B)}} \]