Polymer Technology Unbreakable crockeries are made from __________ polymers. Polystyrene Polyurathane Polystyrene Melamine Polystyrene Polyurathane Polystyrene Melamine ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following is not a natural polymer? Polysaccharides Nucleic acids e.g. RNA and DNA Polyurethane Polyisoprene Polysaccharides Nucleic acids e.g. RNA and DNA Polyurethane Polyisoprene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology __________ is produced by polymerisation of chloroprene. Polyurathane rubber Thiokol (a polysulphide rubber) Neoprene Butyl rubber Polyurathane rubber Thiokol (a polysulphide rubber) Neoprene Butyl rubber ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following is not a natural fibre? Cotton Silk Viscose rayon Wool Cotton Silk Viscose rayon Wool ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polyvinyl chloride (PVC) Is produced by polycondensation reaction Softening temperature is 200°C Can be made thermosetting by adding a plasticiser Uses either emulsion or suspension polymerisation methods Is produced by polycondensation reaction Softening temperature is 200°C Can be made thermosetting by adding a plasticiser Uses either emulsion or suspension polymerisation methods ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polyesters are manufactured by the polycondensation reaction of Dibasic acid with dihydric alcohol A single monomer Inorganic acid with ethylene glycol Carboxylic acid with ethylene Dibasic acid with dihydric alcohol A single monomer Inorganic acid with ethylene glycol Carboxylic acid with ethylene ANSWER DOWNLOAD EXAMIANS APP
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