Polymer Technology Condensation of bisphenol A with phosgene produces __________ which possess very good heat resistance. Polycarbonate Polyurathane Polyester Polysulphone Polycarbonate Polyurathane Polyester Polysulphone 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 Both A & B Neither A nor B Ammonium alum Potassium alum Both A & B Neither A nor B Ammonium alum ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Buna-S is a __________ material. Fibrous Rubbery Resinous Plastic Fibrous Rubbery Resinous Plastic ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Condensation polymerisation of __________ produces bakelite. Phenol & formaldehyde Propylene Phenol & acetaldehyde Urea & formaldehyde Phenol & formaldehyde Propylene Phenol & acetaldehyde Urea & formaldehyde ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology The monomer of poly vinyl chloride (PVC) is Chloroethene Chloroform Ethyl chloride Ethylene dichloride Chloroethene Chloroform Ethyl chloride Ethylene dichloride ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology A copolymer is formed by the combination of two or more monomer molecules Of the same monomer by elimination of small molecules of water With the elimination of small amount of water In a chain without the elimination of water None of these Of the same monomer by elimination of small molecules of water With the elimination of small amount of water In a chain without the elimination of water None of these ANSWER DOWNLOAD EXAMIANS APP
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