Polymer Technology
Dacron (or terylene) fibres as compared to nylon fibres have

Poorer dyeability
Better heat & acid resistant properties
All of these
Poorer resistance to alkalis

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Polymer Technology
Dacron is a

Condensation polymerisation product of hexamethylene diamine and adipic acid
Condensation polymerisation product of dimethyl terephthalate (DMT) and ethylene glycol
None of these
Thermosetting material

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