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(B) The strength of intermolecular forces in polymers depends on their structure:$1$. Nylon $6,6$ is a fiber. It contains strong hydrogen bonding betw

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$a > c > b$

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(B) The strength of intermolecular forces in polymers depends on their structure:$1$. Nylon $6,6$ is a fiber. It contains strong hydrogen bonding between the polymer chains,which results in the strongest intermolecular forces.$2$. Polyethene is a thermoplastic polymer with weak van der Waals forces between the chains.$3$. Buna-$S$ is an elastomer. It has the weakest intermolecular forces,which allow the polymer chains to be stretched.Therefore,the decreasing order of intermolecular forces is: Nylon $6,6$ (fiber) $>$ Polyethene (thermoplastic) $>$ Buna-$S$ (elastomer).This corresponds to the order: $a > c > b$.

List-$I$	List-$II$
$A$. $Nylon$ $6,6$	$i$. $Ethylene$ $glycol$ and $Terephthalic$ $acid$
$B$. $Terylene$	$ii$. $1,3-Butadiene$ and $Styrene$
$C$. $Buna-S$	$iii$. $Chloroprene$
$D$. $Neoprene$	$iv$. $Acrylonitrile$
	$v$. $Adipic$ $acid$ and $Hexamethylenediamine$

Arrange the following in decreasing order of their intermolecular forces:
$(a)$ Nylon $6,6$
$(b)$ Buna-$S$
$(c)$ Polyethene

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Arrange the following in decreasing order of their intermolecular forces:$(a)$ Nylon $6,6$$(b)$ Buna-$S$$(c)$ Polyethene