Polymer Technology Addition polymerisation takes place either by a free radical mechanism or ionic machanism depending on the reagents used. Free radical polymerisation is catelyzed by __________ , which decompose to give free radicals. Hydroflouric acid Sulphuric acid None of these Organic peroxides Hydroflouric acid Sulphuric acid None of these Organic peroxides ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Thermoplastic resins usually Less brittle than thermosetting resins Remain hard as long as they are hot Can not be reclaimed from waste Permanent setting resins Less brittle than thermosetting resins Remain hard as long as they are hot Can not be reclaimed from waste Permanent setting resins ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Thiokol is nothing but Exponded polystyrene Polyamide fibre Engineering plastic Polysulphide rubber Exponded polystyrene Polyamide fibre Engineering plastic Polysulphide rubber ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polyvinyl acetate is never used for making Fibres All of these Moulded articles Adhesives Fibres All of these Moulded articles Adhesives ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Low pressure Zeigler process of polythene manufacture 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 Produces very low density polythene Does not use any catalyst for polymerisation ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following polymers does not belong to the class of polyacrylate polymer? None of these Polyethyl acrylate PMMA Polyacrylonitrile None of these Polyethyl acrylate PMMA Polyacrylonitrile ANSWER DOWNLOAD EXAMIANS APP
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