Polymer Technology Condensation of bisphenol A with phosgene produces __________ which possess very good heat resistance. Polysulphone Polyurathane Polycarbonate Polyester Polysulphone Polyurathane Polycarbonate Polyester ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Thermosplastic materials Are heavily branched molecules None of these Are solvent insoluble Do not soften on application of heat Are heavily branched molecules None of these Are solvent insoluble Do not soften on application of heat 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. 50 to 75 250-280 -20 to 25 100 to 150 50 to 75 250-280 -20 to 25 100 to 150 ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Cellulose content in bomboo fibre is about __________ percent. 50 85 20 10 50 85 20 10 ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Natural rubber is obtained from latex, which is a colloidal dispersion of rubber in water. Which of the following is used as a coagulant in latex? Both A & B Ammonium alum Neither A nor B Potassium alum Both A & B Ammonium alum Neither A nor B Potassium alum ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology __________ polythene is most prone to stress-cracking Low density High density Cross-linked Linear low density Low density High density Cross-linked Linear low density ANSWER DOWNLOAD EXAMIANS APP
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