Polymer Technology Catalyst used in the production of high density polythene by low pressure Ziegler process is Molybdenum Nickel Platinum Aluminium triethyl activated with TiCl₄ Molybdenum Nickel Platinum Aluminium triethyl activated with TiCl₄ ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Low pressure Zeigler process of polythene manufacture Does not use any catalyst for polymerisation Achieves an yield of 95-98% based on ethylene Produces very low density polythene Employs a pressure of 30 kgf/cm² Does not use any catalyst for polymerisation Achieves an yield of 95-98% based on ethylene Produces very low density polythene Employs a pressure of 30 kgf/cm² ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Neoprene which is used for making shoe heels & belts is superior to natural rubber in its stability to aerial oxidation and resistance to oils & other solvents. The monomer used for making neoprene is Chloroethane None of these Isoprene Chlorophrene Chloroethane None of these Isoprene Chlorophrene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following is not a natural polymer? Polyurethane Nucleic acids e.g. RNA and DNA Polyisoprene Polysaccharides Polyurethane Nucleic acids e.g. RNA and DNA Polyisoprene Polysaccharides ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology In condensation polymerisation as compared to addition polymerisation Generally only one monomer is involved No co-product is lost The monomers are unsaturated compounds The monomers contain two functional groups Generally only one monomer is involved No co-product is lost The monomers are unsaturated compounds The monomers contain two functional groups ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Glyptal used in the manufacture of paints & lacquers is a __________ polymer. Polyacrylonitrile Polystyrene Polyamide Polyester Polyacrylonitrile Polystyrene Polyamide Polyester ANSWER DOWNLOAD EXAMIANS APP
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