Chemical Engineering MCQs

Page No. 326

The major component of acrylic fibers is__________________?


aPolyamides


bPolyolefins


cPolyacrylonitrile


dPolyesters


View Answer Polyacrylonitrile

Zeigler – Natta catalyst (AlR3 – AlCl3) is used in the polymerisation of_________________?


aVinyl acetate


bVinyl chloride


cPropylene


dStyrene


View Answer Propylene

______________ fibres are made of polyamides?


aDacron


bNylon


cNylon


dOrion


View Answer Nylon

________________ is produced by polymerisation of chloroprene?


aThiokol (a polysulphide rubber)


bButyl rubber


cNeoprene


dPolyurethane rubber


View Answer Neoprene

Thiokol is nothing but____________________?


aPolysulphide rubber


bPolyamide fibre


cEngineering plastic


dExpanded polystyrene


View Answer Polysulphide rubber

Crystallisation of polymers is an undesirable property. Crystallisation of celluloid is prevented by adding_________________?


aGlycerol


bNitro cellulose


cCamphor


dNone of these


View Answer Camphor

Neoprene is a___________________?


aMonomer


bSynthetic rubber


cPolyester


dNone of these


View Answer Synthetic rubber

Polymerisation of poly functional monomers produces polymers having_________________?


aGood mechanical strength


bLow viscosity


cLow melting point


dNone of these



β – glucose is the monomer of__________________?


aCellulose


bStarch


cProtein


dNone of these


View Answer Cellulose

____________ of SBR is adversely affected, if more quantity of styrene is added to butadiene during its co-polymerisation to produce SBR?


aPercent elongation


bResilience


cFreezing point


dStrength


View Answer Resilience

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