Chemical Engineering MCQs

Page No. 704

______________ are added in lacquers to remove film brittleness and to improve adhereness?


aFilm forming materials


bFilm forming materials


cDiluents


dSolvents



10% oleum comprises of 10% free_________________?


aSO2


bH2SO3


cSO3


dH2SO4


View Answer SO3

The catalyst used in the production of elemental sulphur from H2S (by oxidation-reduction) is _____________________?


aAlumina


bSilica gel


cPlatinum


dNickel


View Answer Alumina

Catalyst used in the hydrogenation of oil is_________________?


aNickel


bPlatinum


cIron


dAlumina


View Answer Nickel

The function of gypsum addition during cement making is to_________________?


aIncrease the density of cement


bDecrease the cement setting rate


cBoth A. and B.


dNeither A. nor B.



Main use of hydrazine is___________________?


aAs a rocket fuel


bIn water treatment


cAs a disinfectant


dAs fire retardant


View Answer As a rocket fuel

Dehydrogenation of ethyl benzene produces __________________ ?


aStyrene


bNaphthalene


cPhenol


dBenzoic acid


View Answer Styrene

In primitive days, _____________ was being manufactured by Leblanc Process ?


aAlum


bWashing soda


cSoda ash


dCalcium carbide


View Answer Soda ash

Good quality of edible salt is obtained from brine by the process of__________________?


aSolar evaporation


bVacuum evaporation


cFreeze drying


dElectrolysis


View Answer Vacuum evaporation

______________ is produced by the dehydrogenation of ethyl benzene ?


aStyrene


bEthyl alcohol


cCumene


dPhenol


View Answer Styrene

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