Polymer Technology Polystyrene is a __________ plastic at room temperature. Brittle None of these Malleable Ductile Brittle None of these Malleable Ductile ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Peptizers like aromatic mercaptans (e.g. thiophenes) are added in rubber to Increase its viscosity Reduce the time of vulcanisation and quantity of vulcanising agent Protect rubber goods from attack by oxygen & ozone present in the atmosphere Reduce its viscosity to permit easier processing Increase its viscosity Reduce the time of vulcanisation and quantity of vulcanising agent Protect rubber goods from attack by oxygen & ozone present in the atmosphere Reduce its viscosity to permit easier processing ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Elastomers are Having high flexural strength Exemplified by protein derivatives Thermosetting material Having very high tensile strength and heat resistance Having high flexural strength Exemplified by protein derivatives Thermosetting material Having very high tensile strength and heat resistance 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? 50000 49200 50800 51600 50000 49200 50800 51600 ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Bakelite is a/an Thermoplastic None of these Elastomer Addition polymer Thermoplastic None of these Elastomer Addition polymer ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polythene is a/an Addition polymerisation product Condensation polymerisation product Thermosetting material None of these Addition polymerisation product Condensation polymerisation product Thermosetting material None of these ANSWER DOWNLOAD EXAMIANS APP
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