Nylon threads are made from which polymer?

Which of the following polymers is used to obtain surgical sutures?

Which polymer is used in the manufacture of paints and lacquers?

Write a short note on: Natural rubber.

The polydispersity index $(PDI)$ of a polymer is ($\bar{M}_w = \text{weight average molecular mass}$ and $\bar{M}_n = \text{number average molecular mass}$)

Which of the following polymers is biodegradable?