Question

Polymer “Z” has a high melting point and it decomposes even before it melts. Hence, it is usually dissolved and subsequently regenerated. Rayon is one such regenerated form. Identify the polymer “Z” from the following options.

• A. Urea formaldehyde
• B. Poly(vinyl carbazole)
• C. Cellulose
• D. Poly(vinyl acetate)

Hint:

Cellulose is the most common natural polymer that is regenerated into fibers like rayon. It is unique because of its ability to dissolve and then be reformed.

Answer 1

The Correct Option is C

Polymer “Z” described in the question has a high melting point and decomposes before melting. Additionally, it can be dissolved and regenerated, a key characteristic of certain polymers. Rayon, mentioned in the question, is a regenerated form of cellulose.
- Urea formaldehyde is a thermosetting polymer that does not dissolve or regenerate in the way cellulose does. It forms hard, rigid structures upon curing.
- Poly(vinyl carbazole) is a polymer with distinct properties but does not typically undergo regeneration like cellulose.
- Cellulose is a natural polymer with a high melting point and is used in the production of rayon, which is a regenerated form of cellulose. It is usually dissolved in solvents and then reformed into fibers.
- Poly(vinyl acetate) is a polymer used for adhesives, paints, and coatings but is not typically associated with the high melting point and regeneration process described in the question.
Therefore, the correct polymer “Z” is Cellulose, which is option (C).