Polymer Technology Polymers are classified into four categories namely thermosetting, thermoplastic, elastomer and fibre depending upon their Polymerisation mechanism Resistance to heat Molecular sizes Magnitude of intermolecular forces Polymerisation mechanism Resistance to heat Molecular sizes Magnitude of intermolecular forces ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Linear polymers are normally Thermosetting Having extremely high softening point Thermosplastic Elastometric Thermosetting Having extremely high softening point Thermosplastic Elastometric ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Liners of bags are usually made of Polypropylene Polythene PVC Polyesters Polypropylene Polythene PVC Polyesters ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polystyrene is a __________ plastic at room temperature. Malleable Ductile None of these Brittle Malleable Ductile None of these Brittle ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following is not a natural polymer? Nucleic acids e.g. RNA and DNA Polyurethane Polysaccharides Polyisoprene Nucleic acids e.g. RNA and DNA Polyurethane Polysaccharides Polyisoprene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Viscosity of a polymer solution or melt Increases with increase in temperature Does not vary with temperature rise Decreases with increase in temperature Decreases with increase in molecular weight Increases with increase in temperature Does not vary with temperature rise Decreases with increase in temperature Decreases with increase in molecular weight ANSWER DOWNLOAD EXAMIANS APP
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