Polymer Technology Styrene which is a monomer for the production of polystyrene, is commercially produced by the Dehydration of ethyl alcohol followed by hydrogenation Fermentation of starch Catalytic dehydrogenation of ethyl benzene Reacting ethylene oxide with acetal-dehyde Dehydration of ethyl alcohol followed by hydrogenation Fermentation of starch Catalytic dehydrogenation of ethyl benzene Reacting ethylene oxide with acetal-dehyde ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Plastic articles are normally produced by __________ moulding. Dry sand Injection Shell Green sand Dry sand Injection Shell Green sand ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Thermosplastic materials 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 Are heavily branched molecules ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Starting material for the production of SBR is Ethylene Ethyl alcohol Neither A nor B Both A & B Ethylene Ethyl alcohol Neither A nor B Both A & B ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following is generally not drawn into fibre? Polyacrylonitrile Unsaturated polyesters Saturated polyesters Polyamide Polyacrylonitrile Unsaturated polyesters Saturated polyesters Polyamide ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Cellulose content in bomboo fibre is about __________ percent. 20 50 10 85 20 50 10 85 ANSWER DOWNLOAD EXAMIANS APP
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