Polymer Technology Condensation polymerisation of __________ produces bakelite. Propylene Phenol & acetaldehyde Urea & formaldehyde Phenol & formaldehyde Propylene Phenol & acetaldehyde Urea & formaldehyde Phenol & formaldehyde ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Addition of stabiliser during PVC manufacture is done to Reduce the melt viscosity & glass transition temperature Improve its impact strength Prevent its thermal degradation Improve its elasticity Reduce the melt viscosity & glass transition temperature Improve its impact strength Prevent its thermal degradation Improve its elasticity ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Main constituent of natural rubber is Polystyrene Poly chloroprene Polyisoprene Polybutadiene Polystyrene Poly chloroprene Polyisoprene Polybutadiene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Condensation polymerisation of formaldehyde with __________ does not produce phenolic resin. Para-cresol Phenol Melamine Resorcinol Para-cresol Phenol Melamine Resorcinol ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology The monomer of natural rubber is Isoprene Both B and C 2 methyl-1-propene DMT Isoprene Both B and C 2 methyl-1-propene DMT ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Plasticisers are high boiling liquids added to plastic polymers to impart toughness and flexibility at ordinary temperature. Which of the following is not a plasticiser? Ethylene glycol Tricresyl phosphate Stearic acid estors Esters of phthalic acid Ethylene glycol Tricresyl phosphate Stearic acid estors Esters of phthalic acid ANSWER DOWNLOAD EXAMIANS APP
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