Chemical Engineering MCQs

Page No. 708

Which oil is preferred for paint manufacture ?


aDrying oil


bNon-drying oil


cSemi-drying oil


dSaturated oil


View Answer Drying oil

Thorium is mainly used _______________?


aFor the manufacture of gas mantles


bAs a fissile fuel in a nuclear reactor


cIn the manufacture of hydrogen bomb


dIn the treatment of cancer



Drinking (potable) water treatment does not involve __________________?


aCoagulation


bSedimentation


cSoftening


dDisinfection


View Answer Softening

Removal of dirt/soil by soaps or detergent does not involve the _______________ of soil ?


aEmulsification


bDispersion


cPrecipitation


dWetting


View Answer Precipitation

The basic difference between vegetable oils and fats is in their ___________________?


aDensity


bChemical properties


cPhysical state


dComposition


View Answer Physical state

Starting raw material for the manufacture of Maleic anhydride is___________________?


an-butene


bBenzene


cEither A. or B.


dNeither A. nor B.


View Answer Either A. or B.

‘Synthesis gas’ meant for the synthesis of organic compound is a variable mixture of ____________________?


aN2 & H2


bCO2 & H2


cCO & H2


dC & H2


View Answer CO & H2

Most easily and cheaply available fibrous raw material for paper manufacture available in India is bamboo. The yield of pulp produced from fibrous raw material by mechanical process is about _____________ percent?


a75


b< 10


c> 30


d50


View Answer < 10

Carboxymethyl cellulose (CMC) is added in detergents to act as a/an___________________?


aSurfactant


bBuilder


cOptical brightening agent


dAnti soil redeposition agent



Lindane is____________________?


aNot a fumigant


bBHC (Benzene Hexachloride) containing 99% γ-isomer


cA by-product of BHC manufacture


dBoth B. and C.



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