Polymer Technology Cation exchange resins (0.3 to 1 mm size) used in water treatment is prepared from __________ resins. Melamine formaldehyde Urea formaldehyde Epoxy Phenol formaldehyde Melamine formaldehyde Urea formaldehyde Epoxy Phenol formaldehyde ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Plastic tubes & pipes are generally made by __________ moulding. Extrusion Injection Transfer Compression Extrusion Injection Transfer Compression ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology The conversion of caprolactum in the above case is about __________ percent. 50 90 70 25 50 90 70 25 ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology In condensation polymerisation as compared to addition polymerisation The monomers contain two functional groups Generally only one monomer is involved The monomers are unsaturated compounds No co-product is lost The monomers contain two functional groups Generally only one monomer is involved The monomers are unsaturated compounds No co-product is lost 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 Polyesters Polyamides Cross linked polystyrene Phenol formaldehyde resins Polyesters Polyamides Cross linked polystyrene Phenol formaldehyde resins 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 Bunai N Cold SBR Butyl rubber Buna S Bunai N Cold SBR Butyl rubber Buna S ANSWER DOWNLOAD EXAMIANS APP
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