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? Ammonium alum Neither A nor B Potassium alum Both A & B Ammonium alum Neither A nor B Potassium alum Both A & B ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Dacron (or terylene) fibres as compared to nylon fibres have Poorer resistance to alkalis All of these Better heat & acid resistant properties Poorer dyeability Poorer resistance to alkalis All of these Better heat & acid resistant properties Poorer dyeability ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Properties of a polymer is affected by the Intermolecular forces Chain length All of these Branching & cross-linking Intermolecular forces Chain length All of these Branching & cross-linking ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Thermosetting resins/polymers as compared to thermoplastic ones are More brittle Soluble in all organic solvents Easily reshaped & reused Formed by addition polymerisation only More brittle Soluble in all organic solvents Easily reshaped & reused Formed by addition polymerisation only ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Addition polymerisation is not involved in the manufacture of Polystyrene Polyhexamethylene adipamide Low density polythene Poly vinyl chloride Polystyrene Polyhexamethylene adipamide Low density polythene Poly vinyl chloride ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology The inter particle forces between linear chains in nylon-66 are __________ bonds. Ionic None of these Hydrogen Covalant Ionic None of these Hydrogen Covalant ANSWER DOWNLOAD EXAMIANS APP
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