Polymer Technology Condensation polymerisation of formaldehyde with __________ does not produce phenolic resin. Melamine Resorcinol Para-cresol Phenol Melamine Resorcinol Para-cresol Phenol ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology A copolymer is formed by the combination of two or more monomer molecules Of the same monomer by elimination of small molecules of water In a chain without the elimination of water None of these With the elimination of small amount of water Of the same monomer by elimination of small molecules of water In a chain without the elimination of water None of these With the elimination of small amount of water ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Thermocole is a spongy, porous, rigid or flexible foamed plastic, obtained by blowing gas/air through molten Polyurathane Either B or C Polystyrene Saturated polyester Polyurathane Either B or C Polystyrene Saturated polyester ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology In case of dry spinning of polymers, the polymer solution in a volatile solvent is forced through the spinnerates into a warm air chamber, where the solvent evaporates leaving behind the polymer in the filament form. Dry spinning is used for __________ fibres. PVC Polythene Polyvinyl acetate Rayon PVC Polythene Polyvinyl acetate Rayon ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology The conversion of caprolactum in the above case is about __________ percent. 90 50 70 25 90 50 70 25 ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Cellulose acetate has very high film permeability among all the polymers of the order of 5000 gm/100 m². Which of the following polymers has the maximum film elongation (of the order of 100%) ? Water impermeable cellophane Teflon Cellulose acetate Polythene Water impermeable cellophane Teflon Cellulose acetate Polythene ANSWER DOWNLOAD EXAMIANS APP
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