Polymer Technology Hot drink (e.g, tea) cups are usually made of PVC Polystyrene Polypropylene Polythene PVC Polystyrene Polypropylene Polythene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Low pressure Zeigler process of polythene manufacture Employs a pressure of 30 kgf/cm² Achieves an yield of 95-98% based on ethylene Produces very low density polythene Does not use any catalyst for polymerisation Employs a pressure of 30 kgf/cm² Achieves an yield of 95-98% based on ethylene Produces very low density polythene Does not use any catalyst for polymerisation ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Nylon-6 as compared to nylon-66 is None of these More abrasion resistant Harder Having higher melting point None of these More abrasion resistant Harder Having higher melting point ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Natural rubber is obtained from latex, which is a colloidal dispersion of rubber in water. Which of the following is used as a coagulant in latex? Both A & B Potassium alum Ammonium alum Neither A nor B Both A & B Potassium alum Ammonium alum Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology __________ polythene is most prone to stress-cracking High density Linear low density Cross-linked Low density High density Linear low density Cross-linked Low density ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology A chain growth polymerisation reaction consists of three different types of reaction namely initiation reaction, propagation reaction & termination reaction. Chain growth polymerisation reaction is not involved in the manufacture of Polyamides Siloxane elastomers Urea-formaldehyde resins Vinyl polymers Polyamides Siloxane elastomers Urea-formaldehyde resins Vinyl polymers ANSWER DOWNLOAD EXAMIANS APP
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