Which of the following is the correct formula for the given polymer?

The bond energy of $C=C$ and $C-C$ at $298 \ K$ are $590 \ kJ \ mol^{-1}$ and $331 \ kJ \ mol^{-1}$ respectively. The enthalpy of polymerisation per mole of ethylene is $..... \ kJ$.

Which of the following statements is incorrect?

Match the polymers given in Column-$I$ with their commercial names given in Column-$II$.

Column-$I$	Column-$II$
$A$. Polyester of glycol and phthalic acid	$i$. Novolac
$B$. Copolymer of $1,3$-butadiene and styrene	$ii$. Glyptal
$C$. Phenol and formaldehyde resin	$iii$. Buna-$S$
$D$. Polyester of glycol and terephthalic acid	$iv$. Buna-$N$
$E$. Copolymer of $1,3$-butadiene and acrylonitrile	$v$. Dacron

Which of the following statement$(s)$ is/are incorrect?
$(a)$ $PHBV$ and $Nylon-2-nylon-6$ are biodegradable polymers.
$(b)$ Bakelite is a polymer of urea and formaldehyde.
$(c)$ Novolac is a linear product of phenol and formaldehyde and is used in paints.
$(d)$ Terylene and $Nylon-6,6$ are examples of thermoplastic polymers.
$(e)$ Teflon is an addition polymer.

Match the following:

Polymer	Type
$A$. Bakelite	$P$. Homo polymer
$B$. Nylon-$6$	$Q$. Condensation polymer
$C$. Terylene	$R$. Polyester
$D$. $PHBV$	$S$. Copolymer