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. Sulphuric acid Hydroflouric acid None of these Organic peroxides Sulphuric acid Hydroflouric acid None of these Organic peroxides ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Rayon is superior to cotton in making gauge for wound treatment, because rayon Can absorb over 90% of its own weight of water Is a synthetic polymer Does not stick to the wound unlike cotton Both B & C Can absorb over 90% of its own weight of water Is a synthetic polymer Does not stick to the wound unlike cotton Both B & C ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Zeigler - Natta catalyst (AlR₃ - AlCl₃) is used in the polymerisation of Propylene Vinyl acetate Styrene Vinyl chloride Propylene Vinyl acetate Styrene Vinyl chloride ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Melamine formaldehyde resin which has a very high anti tacking properties, is not used for the Tanning of leather Electrical insulation purpose Strengthening of plaster of paris Decorative laminates Tanning of leather Electrical insulation purpose Strengthening of plaster of paris Decorative laminates ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology __________ is a natural fibre. Cellulose Nylon-6 Dacron None of these Cellulose Nylon-6 Dacron None of these ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Styrene butadiene rubber (SBR) as compared to natural rubber has All of these Poor tensile strength Poorer resistance Greater amount of heat build up heavy loading All of these Poor tensile strength Poorer resistance Greater amount of heat build up heavy loading ANSWER DOWNLOAD EXAMIANS APP
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