Polymer Technology Which of the following is not a polyolefin? Polypropylene None of these Neoprene Polystyrene Polypropylene None of these Neoprene Polystyrene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following is not a natural polymer? Nucleic acids e.g. RNA and DNA Polyurethane Polyisoprene Polysaccharides Nucleic acids e.g. RNA and DNA Polyurethane Polyisoprene Polysaccharides ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Out of all the elastomers, natural rubber has the longest elongation range & flexibility of the order of __________ percent. 1500-2000 2000-2500 1-1000 1000-1500 1500-2000 2000-2500 1-1000 1000-1500 ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polyvinyl chloride (PVC) Is produced by polycondensation reaction Can be made thermosetting by adding a plasticiser Softening temperature is 200°C Uses either emulsion or suspension polymerisation methods Is produced by polycondensation reaction Can be made thermosetting by adding a plasticiser Softening temperature is 200°C Uses either emulsion or suspension polymerisation methods ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology The monomer for the production of neoprene rubber is Chloroprene Isoprene None of these Acetylene Chloroprene Isoprene None of these Acetylene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Condensation polymerisation of __________ produces bakelite. Propylene Phenol & acetaldehyde Urea & formaldehyde Phenol & formaldehyde Propylene Phenol & acetaldehyde Urea & formaldehyde Phenol & formaldehyde ANSWER DOWNLOAD EXAMIANS APP
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