Arrange the following types of polymer in order of decreasing force of attraction.

Fibres Elastomer Thermoplastic
(I) (II) (III)

I > II > III

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I > III > II

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II > I > III

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III > II > I

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Solution

The correct option is B I > III > II
Fiber have strong intermolecular forces of attraction take H-bonding.

Elastomers have weak fores of attraction which thermoplastic have weakest
forces like london or dispersion forces / vanderwaal forces.

So order is $(I) > (I I I) > (I I)$

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