Polymer Technology __________ are produced by reacting polybasic acid (e.g. phthalic anhydride) with polyhydric alcohol (e.g., glycerol). Alkyd resins Unsaturated polyester Amino resins Saturated polyester Alkyd resins Unsaturated polyester Amino resins Saturated polyester ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Addition polymerisation takes place either by a free radical mechanism or ionic machanism depending on the reagents used. Free radical polymerisation is catelyzed by __________ , which decompose to give free radicals. None of these Hydroflouric acid Organic peroxides Sulphuric acid None of these Hydroflouric acid Organic peroxides Sulphuric acid ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Unbreakable crockeries are made from __________ polymers. Melamine Polystyrene Polystyrene Polyurathane Melamine Polystyrene Polystyrene Polyurathane ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology In case of dry spinning of polymers, the polymer solution in a volatile solvent is forced through the spinnerates into a warm air chamber, where the solvent evaporates leaving behind the polymer in the filament form. Dry spinning is used for __________ fibres. Polyvinyl acetate Polythene PVC Rayon Polyvinyl acetate Polythene PVC Rayon ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Starting material for the production of SBR is Neither A nor B Ethyl alcohol Both A & B Ethylene Neither A nor B Ethyl alcohol Both A & B Ethylene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polypropylene compared to polythene is All of these Stronger Lighter Harder All of these Stronger Lighter Harder ANSWER DOWNLOAD EXAMIANS APP
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