Polymer Technology Molecular weight of polymers are in the range of 10⁹-10¹¹ 10⁷-10⁹ 10²-10⁷ 10 to 10³ 10⁹-10¹¹ 10⁷-10⁹ 10²-10⁷ 10 to 10³ ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Pickout the wrong statement. The intermoleculer forces in ther-mosplastic polymers are intermediate to that of elastomers & fibres Vulcanised rubber is more elastic than natural rubber Polymers made of more than one monomer is called copolymer or mixed polymer Polymers made of only one monomer is called homopolymer The intermoleculer forces in ther-mosplastic polymers are intermediate to that of elastomers & fibres Vulcanised rubber is more elastic than natural rubber Polymers made of more than one monomer is called copolymer or mixed polymer Polymers made of only one monomer is called homopolymer ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Plastic articles are normally produced by __________ moulding. Injection Dry sand Shell Green sand Injection Dry sand Shell Green sand ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Low pressure Zeigler process of polythene manufacture Produces very low density polythene Achieves an yield of 95-98% based on ethylene Employs a pressure of 30 kgf/cm² Does not use any catalyst for polymerisation Produces very low density polythene Achieves an yield of 95-98% based on ethylene Employs a pressure of 30 kgf/cm² Does not use any catalyst for polymerisation ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology __________ is produced by polymerisation of chloroprene. Butyl rubber Polyurathane rubber Thiokol (a polysulphide rubber) Neoprene Butyl rubber Polyurathane rubber Thiokol (a polysulphide rubber) Neoprene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Ion exchange resins are made of Lucite Teflon Polystyrene Sulphonated bakelite Lucite Teflon Polystyrene Sulphonated bakelite ANSWER DOWNLOAD EXAMIANS APP
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