Polymer Technology Styrene which is a monomer for the production of polystyrene, is commercially produced by the Catalytic dehydrogenation of ethyl benzene Fermentation of starch Dehydration of ethyl alcohol followed by hydrogenation Reacting ethylene oxide with acetal-dehyde Catalytic dehydrogenation of ethyl benzene Fermentation of starch Dehydration of ethyl alcohol followed by hydrogenation Reacting ethylene oxide with acetal-dehyde ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following is the most important rubber compounding ingradient which is used to improve wearing qualities of both natural rubber & SBR by imparting toughness? Rosin Phosphorous Pine oil Carbon black Rosin Phosphorous Pine oil Carbon black ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Thermocole is a spongy, porous, rigid or flexible foamed plastic, obtained by blowing gas/air through molten Either B or C Polystyrene Saturated polyester Polyurathane Either B or C Polystyrene Saturated polyester Polyurathane ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Epoxy resin is A good abrasive A polyester An elastomer Not used for surface coating A good abrasive A polyester An elastomer Not used for surface coating ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Diphenylamine is added to rubber to Make it thermosetting Make it non-inflammable Valcanise it Protect it from deterioration on exposure to air Make it thermosetting Make it non-inflammable Valcanise it Protect it from deterioration on exposure to air ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Molecular weights of plastics ranges from 1000 to 5000 10⁹ to l0¹¹ 5000 to 1000 20000 to 25000 1000 to 5000 10⁹ to l0¹¹ 5000 to 1000 20000 to 25000 ANSWER DOWNLOAD EXAMIANS APP
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