Chemical Engineering MCQs

Page No. 744

Hydrolysis of sugar is called_____________________?


aHydration

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bInversion

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cEsterification

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dNone of these

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View Answer Inversion

Sizing material is incorporated in paper to___________________?


aImpart resistance to penetration by liquids

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bIncrease its thickness

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cIncrease its flexibility & opacity

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dIncrease its brightness

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Shrinkage volume in cement setting does not depend upon the _____________________?


aSand to cement ratio

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bWater to cement ratio

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cAmbient temperature fluctuation

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dDrying period

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View Answer Sand to cement ratio

Widely used method for the conditioning of boiler feed water is the ___________________?


aCold lime process

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bCoagulation

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cHot-lime soda process

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dSequestration

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View Answer Hot-lime soda process

Which of the following processes can remove both temporary as well as permanent hardness of water ?


aFiltration

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bBoiling

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cDistillation

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dNone of these

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View Answer Distillation

What products do we get on electrolysis of saturated brine using steel cathode and graphite anode in an electrolytic cell ?


aCl2 & Na

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bCl2 & H2

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cO2 & H2

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dCl2, H2 & NaOH solution

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Chemical formula of oleum is_________________?


aH2SO3

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bH2SO4

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cH2S2O7

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dH2SO7

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View Answer H2S2O7

Contact process of sulphuric acid manufacture ____________________?


aYields acid of higher concentration than chamber process

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bYields acids of lower concentration than chamber process

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cIs obsolete

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dEliminates absorber

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Favourable conditions for the liquefaction of gases in general are _____________________?


aHigh pressure & low temperature

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bLow pressure & high temperature

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cHigh pressure & high temperature

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dLow pressure & low temperature

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Catalytic oxidation of toluene produces____________________?


aStyrene

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bPhenol

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cBenzene

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dTri-nitro-toluene

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View Answer Phenol

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