Polymer Technology Which of the following is not a polyolefin? Polypropylene Polystyrene None of these Neoprene Polypropylene Polystyrene None of these Neoprene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polymerisation process in which two or more monomers of chemically different nature take part is called Chain polymerisation Copolymerisation Addition polymerisation None of these Chain polymerisation Copolymerisation Addition polymerisation None of these ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Phosphates (e.g., triceresyl, tributyl, tetrabutyl, tripheyl etc.) are added to polymers to act as Plasticisers Anti-shrinkage agents Transparency improver Hardeners Plasticisers Anti-shrinkage agents Transparency improver Hardeners ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polycondensation reaction of polymerisation Does not produce linear polymers Produces epoxy polymers Does not need any catalyst Produces only thermoplastic material Does not produce linear polymers Produces epoxy polymers Does not need any catalyst Produces only thermoplastic material ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology SBR is produced by the copolymerisation of butadiene & styrene by employing emulsion polymerisation. The weight ratio of styrene and butadiene is maintained at 3:1 1:3 1:2 2:1 3:1 1:3 1:2 2:1 ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Catalyst used in the production of high density polythene by low pressure Ziegler process is Molybdenum Platinum Aluminium triethyl activated with TiCl₄ Nickel Molybdenum Platinum Aluminium triethyl activated with TiCl₄ Nickel ANSWER DOWNLOAD EXAMIANS APP
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