Select the incorrect option for the following polymer:

Which of the following polymers is used in the manufacture of non-stick cookware?

$C_6H_6O$ (phenol) $\xrightarrow[\text{3}H_2\text{ (High temp and pressure)}]{Ni} (A)$ $\xrightarrow{Cu} (B)$ $\xrightarrow{NH_2OH} (C)$ $\xrightarrow{H^{+}} (D)$ $\xrightarrow{HO^{-}} (E)$
Product $(E)$ is

$A$ polymer sample contains $3$ molecules of molar mass $10^3$, $3$ molecules of molar mass $500$, and $4$ molecules of molar mass $200$. What is its weight average molecular mass?

$PHBV$ is a biodegradable polymer of two monomers $X$ and $Y$. $X$ and $Y$ respectively are

Consider the Assertion and Reason given below.
Assertion $(A):$ Ethene polymerized in the presence of Ziegler-Natta catalyst at high temperature and pressure is used to make buckets and dustbins.
Reason $(R):$ High density polymers are closely packed and are chemically inert.
Choose the correct answer from the following: