Polymer Technology Cation exchange resins used in water treatment is made from __________ resin. Phenolic Urea formaldehyde Epoxy Amino Phenolic Urea formaldehyde Epoxy Amino ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Low density polythene as compared to high density polythene is Chemically inert More flexible Tougher Harder Chemically inert More flexible Tougher Harder ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology 90% of the caprolactum is converted to nylon-6 on its condensation polymerisation in the reactor maintained at a temperature of __________ °C. 250-280 500-600 10-30 -5 250-280 500-600 10-30 -5 ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Pickout the wrong statement. Polymers made of more than one monomer is called copolymer or mixed polymer The intermoleculer forces in ther-mosplastic polymers are intermediate to that of elastomers & fibres Vulcanised rubber is more elastic than natural rubber Polymers made of only one monomer is called homopolymer Polymers made of more than one monomer is called copolymer or mixed polymer The intermoleculer forces in ther-mosplastic polymers are intermediate to that of elastomers & fibres Vulcanised rubber is more elastic than natural rubber Polymers made of only one monomer is called homopolymer ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Low pressure Zeigler process of polythene manufacture Produces very low density polythene Does not use any catalyst for polymerisation Achieves an yield of 95-98% based on ethylene Employs a pressure of 30 kgf/cm² Produces very low density polythene Does not use any catalyst for polymerisation Achieves an yield of 95-98% based on ethylene Employs a pressure of 30 kgf/cm² ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Cellulose acetate has very high film permeability among all the polymers of the order of 5000 gm/100 m². Which of the following polymers has the maximum film elongation (of the order of 100%) ? Cellulose acetate Water impermeable cellophane Teflon Polythene Cellulose acetate Water impermeable cellophane Teflon Polythene ANSWER DOWNLOAD EXAMIANS APP
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