Polymer Technology Molecular weight of a polymer is equal to the molecular weight of the repeat unit multiplied by the degree of polymerisation. What is the molecular weight of poly vinyl chloride (PVC), if its degree of polymerisation is 800? 50800 49200 50000 51600 50800 49200 50000 51600 ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology __________ is an addition polymer Nylon None of these Polythene Bakelite Nylon None of these Polythene Bakelite ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Mastication of rubber means Improving its curing rate Depression of its freezing point Its softening A treatment to retard its deterioration due to oxidation Improving its curing rate Depression of its freezing point Its softening A treatment to retard its deterioration due to oxidation ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Condensation polymerisation of caprolac-tum is carried out in the reactor maintained at a temperature of __________ °C for producing nylon-6. 250-280 100 to 150 50 to 75 -20 to 25 250-280 100 to 150 50 to 75 -20 to 25 ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following rubbers has the widest service temperature range (-75 to 275°C) ? Silicone rubber Butyl rubber Silicon rubber Nitrile rubber Silicone rubber Butyl rubber Silicon rubber Nitrile rubber ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polyesters are manufactured by the polycondensation reaction of Dibasic acid with dihydric alcohol Carboxylic acid with ethylene Inorganic acid with ethylene glycol A single monomer Dibasic acid with dihydric alcohol Carboxylic acid with ethylene Inorganic acid with ethylene glycol A single monomer ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS