Nylon is a.......

Which of the following is a polyester fibre?

Which statement is correct?

Which of the following compounds is present in natural rubber as a monomer?

Which of the following statements is incorrect?

If $\bar{M}_w$ is the weight average molecular weight and $\bar{M}_n$ is the number average molecular weight of a polymer, the poly dispersity index $(PDI)$ of the polymer is given by