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 In condensation polymerisation as compared to addition polymerisation The monomers are unsaturated compounds The monomers contain two functional groups No co-product is lost Generally only one monomer is involved The monomers are unsaturated compounds The monomers contain two functional groups No co-product is lost Generally only one monomer is involved ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Acrilan fibres used for making cloth, carpet & blankets, which is a hard, horny & high melting polymeric material is nothing but Alkyd resin Polyacrylonitrile Saturated polyester Polyamide Alkyd resin Polyacrylonitrile Saturated polyester Polyamide ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology The rate controlling step in the manufacture of silicone rubber is the None of these Polymer termination step Initial hydrolysis of silicone monomer Condensation of siloxane to silicone None of these Polymer termination step Initial hydrolysis of silicone monomer Condensation of siloxane to silicone ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following polymers are produced by employing all bulk polymerisation, solution polymerisation & suspension polymerisation technique of addition (chain) polymerisation? PVC PTFE Bakelite Epoxy resin PVC PTFE Bakelite Epoxy resin ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology The monomer of natural rubber is 2 methyl-1-propene Isoprene DMT Both B and C 2 methyl-1-propene Isoprene DMT Both B and C ANSWER DOWNLOAD EXAMIANS APP
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