Polymer Technology Which of the following is not a natural polymer? Polyurethane Polyisoprene Nucleic acids e.g. RNA and DNA Polysaccharides Polyurethane Polyisoprene Nucleic acids e.g. RNA and DNA Polysaccharides ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Benzoyl chloride is not used as a catalyst in the manufacture of Polypropylene Polystyrene Polyvinyl chloride-co-vinylacetate Polyvinyl acetate Polypropylene Polystyrene Polyvinyl chloride-co-vinylacetate Polyvinyl acetate ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Properties of a polymer is affected by the Branching & cross-linking All of these Chain length Intermolecular forces Branching & cross-linking All of these Chain length Intermolecular forces 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? Bakelite (phenol formaldehyde) Polyester Polythene Nylon-6 Bakelite (phenol formaldehyde) Polyester Polythene Nylon-6 ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology SBR is produced by the copolymerisation of butadiene & styrene by employing emulsion polymerisation. The weight ratio of styrene and butadiene is maintained at 3:1 1:2 2:1 1:3 3:1 1:2 2:1 1:3 ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Starting material for the production of SBR is Ethylene Ethyl alcohol Neither A nor B Both A & B Ethylene Ethyl alcohol Neither A nor B Both A & B ANSWER DOWNLOAD EXAMIANS APP
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