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 Starting material for the production of butadiene in India is Naphthalene Phthalic anhydride Ethyl alcohol Benzol Naphthalene Phthalic anhydride Ethyl alcohol Benzol ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Plasticisers are high boiling liquids added to plastic polymers to impart toughness and flexibility at ordinary temperature. Which of the following is not a plasticiser? Ethylene glycol Esters of phthalic acid Tricresyl phosphate Stearic acid estors Ethylene glycol Esters of phthalic acid Tricresyl phosphate Stearic acid estors ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following additives are added to plastics to make it impervious to X-rays? Phthalic acid Carborundum Asbestos Barium salt Phthalic acid Carborundum Asbestos Barium salt ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polycondensation reaction of polymerisation Produces epoxy polymers Does not produce linear polymers Produces only thermoplastic material Does not need any catalyst Produces epoxy polymers Does not produce linear polymers Produces only thermoplastic material Does not need any catalyst ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Molecular weight of a polymer is equal to the molecular weight of the repeat unit multiplied by the degree of polymerisation. What is the molecular weight of poly vinyl chloride (PVC), if its degree of polymerisation is 800? 49200 50800 50000 51600 49200 50800 50000 51600 ANSWER DOWNLOAD EXAMIANS APP
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