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(C) Fibres are thread-forming solids that possess high tensile strength and high modulus. These characteristics are due to strong intermolecular force

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$(iii)$ and $(iv)$

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(C) Fibres are thread-forming solids that possess high tensile strength and high modulus. These characteristics are due to strong intermolecular forces like hydrogen bonds or dipole-dipole interactions. Among the given polymers: $(i)$ Teflon is an elastomer/plastic. $(ii)$ Starch is a natural polymer (carbohydrate). $(iii)$ Terylene is a polyester fibre. $(iv)$ Orlon (polyacrylonitrile) is a synthetic fibre. Therefore,the correct set is $(iii)$ and $(iv)$.

Column-$I$	Column-$II$
$A$. Terylene	$i$. Glycosidic linkage
$B$. Nylon	$ii$. Ester linkage
$C$. Cellulose	$iii$. Phosphodiester linkage
$D$. Protein	$iv$. Amide linkage
$E$. $RNA$

Which of the following set of polymers are used as fibres?
$(i)$ Teflon
$(ii)$ Starch
$(iii)$ Terylene
$(iv)$ Orlon

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Match the polymers given in Column-$I$ with the type of linkage present in them given in Column-$II$.

Column-$I$ Column-$II$

$A$. Terylene $i$. Glycosidic linkage

$B$. Nylon $ii$. Ester linkage

$C$. Cellulose $iii$. Phosphodiester linkage

$D$. Protein $iv$. Amide linkage

$E$. $RNA$

Which of the following is not a biodegradable polymer?

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Which of the following set of polymers are used as fibres?$(i)$ Teflon$(ii)$ Starch$(iii)$ Terylene$(iv)$ Orlon