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 Both A & B Neither A nor B Potassium alum Ammonium alum Both A & B Neither A nor B Potassium alum ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Neoprene is rendered non-inflammable, because of Its cross-linked structure The absence of chlorine atoms in its monomer Its linear chain structure The presence of chlorine atoms in its monomer Its cross-linked structure The absence of chlorine atoms in its monomer Its linear chain structure The presence of chlorine atoms in its monomer ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Perspex can be used as a substitute of glass. Its monomer is Butadiene Tetrafluroethylene Methyl methacrylate DMT Butadiene Tetrafluroethylene Methyl methacrylate DMT ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology The synthetic fibres produced from __________ are known as rayon. Cellulose Polyamides Ethylene glycol Lignin Cellulose Polyamides Ethylene glycol Lignin ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Rayon is superior to cotton in making gauge for wound treatment, because rayon Does not stick to the wound unlike cotton Both B & C Is a synthetic polymer Can absorb over 90% of its own weight of water Does not stick to the wound unlike cotton Both B & C Is a synthetic polymer Can absorb over 90% of its own weight of water ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology 90% of the caprolactum is converted to nylon-6 on its condensation polymerisation in the reactor maintained at a temperature of __________ °C. -5 250-280 500-600 10-30 -5 250-280 500-600 10-30 ANSWER DOWNLOAD EXAMIANS APP
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