Chemical Engineering MCQs

Page No. 743

Starting material for the production of styrene butadiene rubber (SBR) is________________?


aEthyl alcohol


bEthylene


cBoth A. & B.


dNeither A. nor B.


View Answer Both A. & B.

______________ Nature of hypo (sodium thiosulphate) makes it useful in photography ?


aOxidising


bReducing


cComplex forming


dPhotochemical


View Answer Complex forming

The most popular and common detergent i.e., alkyl benzene sulfonate (ABS) is a/an ______________ detergent ?


aCationic


bAnionic


cAmphoteric


dSemi polar


View Answer Anionic

Industrial production of chloroform requires acetone and_____________________?


aPhosgene


bCalcium hypochlorite


cChlorine


dAmmonium chloride


View Answer Calcium hypochlorite

The most reactive allotropic form of phosphorus is __________________ phosphorus?


aRed


bYellow


cViolet


dBlack


View Answer Yellow

The manufacture of Kraft pulp is done by a/an _________________ process?


aAlkaline


bAcidic


cNeutral


dNone of these


View Answer Alkaline

Flux addition during smelting of ore is done to___________________?


aRemove impurities/gangue


bEnhance rate of reaction


cAccelerate reduction of ore


dSeparate slag from metal



Yellow glycerine is made into white, using____________________?


aActivated carbon


bDiatomaceous earth


cBauxite


dBentonite


View Answer Activated carbon

Coloured glass is obtained by mixing of colored salts. Addition of ___________________ oxide is done to impart greenish blue color to the glass?


aChromium


bArsenic


cCopper


dManganese


View Answer Copper

Commercially ethylene is produced from naphtha by ______________________?


aCatalytic cracking


bCatalytic dehydrogenation


cPyrolysis


dHydrocracking


View Answer Hydrocracking

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