Polymer Technology Cation exchange resins (0.3 to 1 mm size) used in water treatment is prepared from __________ resins. Phenol formaldehyde Melamine formaldehyde Epoxy Urea formaldehyde Phenol formaldehyde Melamine formaldehyde Epoxy Urea formaldehyde ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Styrene butadiene rubber (SBR) as compared to natural rubber has Greater amount of heat build up heavy loading Poor tensile strength Poorer resistance All of these Greater amount of heat build up heavy loading Poor tensile strength Poorer resistance All of these ANSWER DOWNLOAD EXAMIANS APP
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 Phenol formaldehyde resins Cross linked polystyrene Polyesters Polyamides Phenol formaldehyde resins Cross linked polystyrene Polyesters Polyamides ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Benzoyl chloride is not used as a catalyst in the manufacture of Polyvinyl chloride-co-vinylacetate Polyvinyl acetate Polypropylene Polystyrene Polyvinyl chloride-co-vinylacetate Polyvinyl acetate Polypropylene Polystyrene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Thermosplastic materials Are solvent insoluble Do not soften on application of heat None of these Are heavily branched molecules Are solvent insoluble Do not soften on application of heat None of these Are heavily branched molecules ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Due to its excellent permeability to air/gas and oxidation resistance, the tubes of automobile tyres is made of Cold SBR Butyl rubber Bunai N Buna S Cold SBR Butyl rubber Bunai N Buna S ANSWER DOWNLOAD EXAMIANS APP
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