Polymer Technology Liners of bags are usually made of Polypropylene PVC Polyesters Polythene Polypropylene PVC Polyesters Polythene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Bakelite (phenol-formaldehyde) resin can not be used as Decorative paint Electrical insulation Glass reinforced plastics Decorative laminates Decorative paint Electrical insulation Glass reinforced plastics Decorative laminates ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polyesters are manufactured by the polycondensation reaction of Inorganic acid with ethylene glycol A single monomer Dibasic acid with dihydric alcohol Carboxylic acid with ethylene Inorganic acid with ethylene glycol A single monomer Dibasic acid with dihydric alcohol Carboxylic acid with ethylene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Addition polymerisation takes place either by a free radical mechanism or ionic machanism depending on the reagents used. Free radical polymerisation is catelyzed by __________ , which decompose to give free radicals. Organic peroxides Hydroflouric acid Sulphuric acid None of these Organic peroxides Hydroflouric acid Sulphuric acid None of these ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology In a cross linked polymer, the monomeric units are linked together to constitute a three dimensional network. Which of the following is a cross-linked polymer? Polythene Bakelite (phenol formaldehyde) Polyester Nylon-6 Polythene Bakelite (phenol formaldehyde) Polyester Nylon-6 ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Fillers such as zinc oxide and carbon black are added to the crude natural rubber before vulcanisation in order to improve its Strength Plasticity Elasticity Weathering characteristics Strength Plasticity Elasticity Weathering characteristics ANSWER DOWNLOAD EXAMIANS APP