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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 $(iv)$.

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

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