Question

Which of the following statements is correct?
i) Cellulose is a naturally occurring polymer.
ii) Nylon thread is weaker than jute thread.
iii) Rayon is a very expensive fiber compared to silk.
iv) Polymers occur in nature.

1. Only (i) and (ii)
2. Only (ii) and (iii)
3. Only (i) and (iv)
4. Only (iv)