Nylon $2-$ Nylon $6$ is

Which of the following is a biodegradable polymer?

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

Identify the use of glyptal.

Neoprene is the polymer of a monomer $X$. The $IUPAC$ name of $X$ is

Identify the condensation polymers from the following:
$A$. $PHBV$
$B$. Buna$-N$
$C$. Neoprene
$D$. Nylon$-6$
$E$. Glyptal