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. Sulphuric acid Organic peroxides None of these Hydroflouric acid Sulphuric acid Organic peroxides None of these Hydroflouric acid ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Most commonly used rubber vulcanisation agent is Sulphur Platinum Bromine Alumina Sulphur Platinum Bromine Alumina ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Valcunisation of rubber decreases its Tensile strength Tackiness Working temperature range Resistance to organic solvents Tensile strength Tackiness Working temperature range Resistance to organic solvents ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Condensation polymerisation is not involved in the manufacture of Teflon Nylon Terylene Polythene Teflon Nylon Terylene Polythene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Out of all the elastomers, natural rubber has the longest elongation range & flexibility of the order of __________ percent. 2000-2500 1-1000 1500-2000 1000-1500 2000-2500 1-1000 1500-2000 1000-1500 ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polyvinyl acetate is never used for making Moulded articles All of these Fibres Adhesives Moulded articles All of these Fibres Adhesives ANSWER DOWNLOAD EXAMIANS APP
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