Chemical Engineering MCQs

Page No. 746

One of the steps during refining of cane sugar consists of addition of hydrated lime to the sugar syrup followed by carbonation of the resulting solution. The purpose of this step is to_________________?


aAdjust the pH of the syrup


bRemove the coloring matter from the syrup


cReduce the viscosity of the syrup


dImprove the rate of crystallisation of sugar



Which of the following impurities in feed water for high pressure boiler is the most detrimental ?


aSilica


bDissolved oxygen


cSuspended salt


dDissolved salt


View Answer Silica

Penicillin, an antibiotic drug was discovered by__________________?


aAlexander


bFlaming


cDoctor Zhivago


dNone of these


View Answer Alexander

_________________ is produced using Polycondensation Reaction?


aPolythene


bPhenol formaldehyde


cPoly vinyl chloride


dNone of these


View Answer Phenol formaldehyde

A mixture of chlorine & sodium bromide acts as a/an_________________?


aInsecticides


bAnalgesic drug


cFire retardant


dHydrogenation catalyst


View Answer Fire retardant

Sucrose is a__________________?


aMonosaccharide


bDisaccharide


cPolysaccharide


dNone of these


View Answer Disaccharide

Nylon-6 as compared to Nylon-66 is having higher___________________?


aHardness


bAbrasion/resistance


cMelting point


dNone of these


View Answer None of these

Chemical formula of BHC, which is an insecticide is__________________?


aC6H6Cl6


bC6Cl6


cC6H5Cl


dC6H4Cl2


View Answer C6Cl6

In an integrated steel plant, NH3 present in coke oven gas is normally recovered as_________________?


a(NH4)2SO4


bNH4Cl


c(NH4)2 NO3


dLiquid NH3


View Answer (NH4)2SO4

Concentration of NaOH solution produced by diaphragm electrolytic cell is about _______________ percent?


a10


b25


c50


d98


View Answer 10

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