Polymer Technology Hot drink (e.g, tea) cups are usually made of PVC Polythene Polystyrene Polypropylene PVC Polythene Polystyrene Polypropylene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology __________ are produced by reacting polybasic acid (e.g. phthalic anhydride) with polyhydric alcohol (e.g., glycerol). Amino resins Saturated polyester Alkyd resins Unsaturated polyester Amino resins Saturated polyester Alkyd resins Unsaturated polyester ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following has the weakest intermolecular forces? Nylon-66 Polyisoprene Bakelite Polystyrene Nylon-66 Polyisoprene Bakelite Polystyrene ANSWER DOWNLOAD EXAMIANS APP
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? Potassium alum Neither A nor B Both A & B Ammonium alum Potassium alum Neither A nor B Both A & B Ammonium alum ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Neoprene is rendered non-inflammable, because of Its cross-linked structure The presence of chlorine atoms in its monomer The absence of chlorine atoms in its monomer Its linear chain structure Its cross-linked structure The presence of chlorine atoms in its monomer The absence of chlorine atoms in its monomer Its linear chain structure ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Plastic tubes & pipes are generally made by __________ moulding. Injection Extrusion Transfer Compression Injection Extrusion Transfer Compression ANSWER DOWNLOAD EXAMIANS APP
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