Polymer Technology Zeigler - Natta catalyst (AlR₃ - AlCl₃) is used in the polymerisation of Vinyl acetate Styrene Vinyl chloride Propylene Vinyl acetate Styrene Vinyl chloride Propylene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following is the lowest cost plastic commercially available? Polythene PVC Bakelite Teflon Polythene PVC Bakelite Teflon ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Rayon is superior to cotton in making gauge for wound treatment, because rayon Is a synthetic polymer Does not stick to the wound unlike cotton Can absorb over 90% of its own weight of water Both B & C Is a synthetic polymer Does not stick to the wound unlike cotton Can absorb over 90% of its own weight of water Both B & C ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Starting material for the production of butadiene in India is Ethyl alcohol Naphthalene Benzol Phthalic anhydride Ethyl alcohol Naphthalene Benzol Phthalic anhydride ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology In step growth polymerisation, generally only one type of reaction & some basic mechanism is involved. Step growth polymerisation reaction is not involved in the manufacture of Phenol formaldehyde resins Polyamides Polyesters Cross linked polystyrene Phenol formaldehyde resins Polyamides Polyesters Cross linked polystyrene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Synthetic rubber Deforms, if stretched to double of its original dimension Is highly permeable to air & water and is readily attacked by chemicals & atmospheric gases Is brittle at low temperature Is softer at higher temperature Deforms, if stretched to double of its original dimension Is highly permeable to air & water and is readily attacked by chemicals & atmospheric gases Is brittle at low temperature Is softer at higher temperature ANSWER DOWNLOAD EXAMIANS APP
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