Chemical Engineering MCQs

Page No. 732

______________ glass has the lowest co-efficient of thermal expansion and hence is more heat resistant ?


aPyrex


bSoda lime


cLead


dHigh silica


View Answer Pyrex

Which is the most suitable dye for synthetic fibres ?


aAcid dye


bAzoic dye


cPigment dye


dMordant dye


View Answer Acid dye

Nickel is not used as a catalyst in the____________________?


aFischer-Tropsch process


bShift conversion


cHydrogenation of oil


dOstwald’s process of HNO3 manufacture



Hard water____________________?


aDoes not affect the lather formation by soap


bIs not unfit for drinking purpose


cPollutes the water stream


dAll A, B. and C



Zeolite removes both temporary as well as permanent hardness of water by precipitating calcium and magnesium present in water as insoluble zeolites. Used zeolite is regenerated by flushing with the solution of_____________________?


aCalcium sulphate


bSodium chloride


cSodium sulphate


dMagnesium chloride


View Answer Sodium chloride

Purity of oxygen used for blowing in steel making L.D. converter is 99.5%. The boiling point of oxygen is about _____________ °C ?


a-53


b-103


c-183


d-196


View Answer -183

Frasch process is for______________________?


aMaking oxygen


bProducing helium


cMining sulphur


dMaking nitrogen


View Answer Mining sulphur

The drug used in contraceptives is____________________?


aSulfadiazine


bMestranol


cMethyl salicylate


dPenicillin


View Answer Mestranol

Gun powder, which is an explosive comprises of charcoal, sulphur and____________________?


aGlycerine


bSalt petre


cNitro glycerine


dDynamite


View Answer Salt petre

Viscose rayon is chemically___________________?


aCellulose nitrate


bRegenerated cellulose nitrate


cCellulose acetate


dRegenerated cellulose acetate



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