Chemical Engineering MCQs

Page No. 732

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


aPyrex

✓


bSoda lime

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cLead

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dHigh silica

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View Answer Pyrex

Which is the most suitable dye for synthetic fibres ?


aAcid dye

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bAzoic dye

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cPigment dye

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dMordant dye

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View Answer Acid dye

Nickel is not used as a catalyst in the____________________?


aFischer-Tropsch process

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bShift conversion

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cHydrogenation of oil

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dOstwald’s process of HNO3 manufacture

✓



Hard water____________________?


aDoes not affect the lather formation by soap

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bIs not unfit for drinking purpose

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cPollutes the water stream

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dAll A, B. and C

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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

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bSodium chloride

✓


cSodium sulphate

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dMagnesium chloride

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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

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b-103

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c-183

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d-196

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View Answer -183

Frasch process is for______________________?


aMaking oxygen

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bProducing helium

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cMining sulphur

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dMaking nitrogen

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View Answer Mining sulphur

The drug used in contraceptives is____________________?


aSulfadiazine

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bMestranol

✓


cMethyl salicylate

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dPenicillin

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View Answer Mestranol

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


aGlycerine

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bSalt petre

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cNitro glycerine

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dDynamite

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View Answer Salt petre

Viscose rayon is chemically___________________?


aCellulose nitrate

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bRegenerated cellulose nitrate

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cCellulose acetate

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dRegenerated cellulose acetate

✓



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