$Nylon-6,6$ is a

Match the polymers given in column-$I$ with their chemical names given in column-$II$.

Column-$I$	Column-$II$
$A$. Nylon-$6$	$i$. Polycaprolactum
$B$. $PVC$	$ii$. Polyvinyl chloride
$C$. Acrilan	$iii$. Polyacrylonitrile
$D$. Natural rubber	$iv$. cis-polyisoprene
$E$. $LDP$	$v$. Low density polythene

What is the process of heating rubber with sulfur called?

Write the names and structures of the monomers of the following polymers: $(i)$ Buna-$S$ $(ii)$ Buna-$N$ $(iii)$ Dacron $(iv)$ Neoprene

Identify the correct statement from the following:
$(A)$ Glyptal is made from the monomers ethylene glycol and phthalic acid
$(B)$ Bakelite is used in making electrical switches
$(C)$ Nylon-$2$-nylon-$6$ is a biodegradable polymer

The structure shown is a repeating unit for: