Polymer Technology In step growth polymerisation, generally only one type of reaction & some basic mechanism is involved. Step growth polymerisation reaction is not involved in the manufacture of Polyamides Polyesters Phenol formaldehyde resins Cross linked polystyrene Polyamides Polyesters Phenol formaldehyde resins Cross linked polystyrene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Dacron (or terylene) fibres as compared to nylon fibres have Better heat & acid resistant properties Poorer dyeability All of these Poorer resistance to alkalis Better heat & acid resistant properties Poorer dyeability All of these Poorer resistance to alkalis ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Plasticisers are added to synthetic plastics to Develop new improved properties not present in the original resin Improve workability during fabrication Impart flexibility All of these Develop new improved properties not present in the original resin Improve workability during fabrication Impart flexibility All of these ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following is stretched into fibres? Unsaturated polyester Isoprene Bakelite Saturated polyester Unsaturated polyester Isoprene Bakelite Saturated polyester ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Maximum consumption of polymers is in Toys making Packaging Coating and films Electrical insulation Toys making Packaging Coating and films Electrical insulation ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polymerisation of poly functional monomers produces polymers having Low viscosity None of these Good machanical strength Low melting point Low viscosity None of these Good machanical strength Low melting point ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS