Polymer Technology Catalyst used in the production of high density polythene by low pressure Ziegler process is Nickel Aluminium triethyl activated with TiCl₄ Molybdenum Platinum Nickel Aluminium triethyl activated with TiCl₄ Molybdenum Platinum ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology The physical state in which polymers exist is Melts & rubber like state All of these Partially crystalline state Amorphous glassy state Melts & rubber like state All of these Partially crystalline state Amorphous glassy state ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polymers are classified into four categories namely thermosetting, thermoplastic, elastomer and fibre depending upon their Molecular sizes Resistance to heat Polymerisation mechanism Magnitude of intermolecular forces Molecular sizes Resistance to heat Polymerisation mechanism Magnitude of intermolecular forces ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Cellulose acetate has very high film permeability among all the polymers of the order of 5000 gm/100 m². Which of the following polymers has the maximum film elongation (of the order of 100%) ? Water impermeable cellophane Cellulose acetate Polythene Teflon Water impermeable cellophane Cellulose acetate Polythene Teflon ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Thermosplastic materials Are heavily branched molecules Are solvent insoluble None of these Do not soften on application of heat Are heavily branched molecules Are solvent insoluble None of these Do not soften on application of heat ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polymerisation of poly functional monomers produces polymers having None of these Good machanical strength Low viscosity Low melting point None of these Good machanical strength Low viscosity Low melting point ANSWER DOWNLOAD EXAMIANS APP
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