Polymer Technology Plexiglass (also called lucite) because of its high optical transparency is used for making lenses. It is chemically Polymethyl methacrylate (PMMA) Polycarbonates Polytetraflouroethylene(PTFE) Phenolic resins Polymethyl methacrylate (PMMA) Polycarbonates Polytetraflouroethylene(PTFE) Phenolic resins ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Size range of polymer molecules varies from __________ metre. 10⁻¹ to 10⁻² 10⁻² to 10⁻⁵ 10⁻⁸ to 10⁻¹⁰ 10⁻⁴ to 10⁻⁷ 10⁻¹ to 10⁻² 10⁻² to 10⁻⁵ 10⁻⁸ to 10⁻¹⁰ 10⁻⁴ to 10⁻⁷ ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polycondensation reaction of polymerisation Does not need any catalyst Does not produce linear polymers Produces only thermoplastic material Produces epoxy polymers Does not need any catalyst Does not produce linear polymers Produces only thermoplastic material Produces epoxy polymers ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology __________ polythene is most prone to stress-cracking High density Low density Linear low density Cross-linked High density Low density Linear low density Cross-linked ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Catalyst used in the production of high density polythene by low pressure Ziegler process is Aluminium triethyl activated with TiCl₄ Nickel Platinum Molybdenum Aluminium triethyl activated with TiCl₄ Nickel Platinum Molybdenum ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Terylene is a/an Homopolymer Addition polymer Poly amide None of these Homopolymer Addition polymer Poly amide None of these ANSWER DOWNLOAD EXAMIANS APP
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