Chemical Engineering MCQs

Page No. 697

Coke oven gas consists mainly of ____________________?


aH2, & CH4


bCO, & CO2


cH2, & CO


dCH4, & CO


View Answer H2, & CH4

Soaps remove dirt by ____________________?


aIncreasing the surface tension


bDecreasing wettability


cSupplying hydrophilic group


dNone of these


View Answer None of these

Carbon content of pitch (residue of coal tar distillation) is around ________________ percent?


a70


b55


c80


d94


View Answer 94

Yeast is used in the manufacture of ____________________?


aPenicillin


bAntibiotics


cWine


dPasteurised milk


View Answer Wine

Most commonly used rubber vulcanising agent is___________________?


aSulphur


bBromine


cPlatinum


dAlumina


View Answer Sulphur

Systemic insecticides________________?


aAre absorbed throughout the plant


bKill insects following external bodily contact


cAre stomach poisons


dEmit poisonous vapour



Chemical name of Grignard reagent is__________________?


aSodium thiosulphate


bEthyl magnesium chloride


cSodium sulphite


dSodium bicarbonate



Phthalic anhydride is produced by the oxidation of _________________?


aNaphthalene


bBenzene


cToluene


dAniline


View Answer Benzene

Percentage of uranium in Carnotite ore found in Jadugoda (Jharkhand) is about ___________________?


a0.1 to 0.5


b1 to 5


c5 to 10


d15 to 25


View Answer 0.1 to 0.5

Phenol formaldehyde resin is used as an adhesive in making__________________?


aLaminates


bCard boxes


cFurniture


dBooks


View Answer Laminates

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