Polymer Technology Which of the following natural bio polymers are formed as a result of polymerisation of amino-acids? Starch Nucleic acids Proteins Cellulose Starch Nucleic acids Proteins Cellulose ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polyvinyl chloride (PVC) Is produced by polycondensation reaction Uses either emulsion or suspension polymerisation methods Softening temperature is 200°C Can be made thermosetting by adding a plasticiser Is produced by polycondensation reaction Uses either emulsion or suspension polymerisation methods Softening temperature is 200°C Can be made thermosetting by adding a plasticiser ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Scouring is a finishing operation during the manufacture of fibre, which aims at __________ of fibres. Dyeing/colouring Glycol soaking Improving the stretchability Detergent solution washing Dyeing/colouring Glycol soaking Improving the stretchability Detergent solution washing ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology A copolymer of vinyl and vinylidine chloride is called Dacron Orlon Saran Treylene Dacron Orlon Saran Treylene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Crystallisation of polymers is an undesirable property. Crystallisation of celluloid is prevented by adding Camphor Glycerol None of these Nitro cellulose Camphor Glycerol None of these Nitro cellulose ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology In a co-polymer, the repeating units contain two different monomers. Which of the following is a copolymer? Buna-S PMMA PTFE Polycaprolactum Buna-S PMMA PTFE Polycaprolactum ANSWER DOWNLOAD EXAMIANS APP
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