Chemical Engineering MCQs

Page No. 41

Gas based fertiliser plants use_________________?


a Natural gas as a source of hydrogen


bNatural gas as heating medium


cCoal gas as a source of hydrogen


dCoal gas as heating medium



Chemical formula of meta-phosphoric acid is ___________________?


aH3PO4


bH4P2O7


cHPO3


dSame as that of Pyrophosphoric acid


View Answer HPO3

Which of the following is the costliest source of hydrogen needed for ammonia manufacture under Indian condition _______________?


aElectrolysis of water


bCryogenic removal of H2 from coke oven gas


c Steam reforming of naphtha


dNatural gas cracking


View Answer Electrolysis of water

A nitrogenous fertiliser contains 20% N2. It could be_________________?


aAmmonium nitrate


bCalcium ammonium nitrate (CAN)


cUrea


dAmmonium chloride



Raw materials required for the production of CAN (Calcium ammonium nitrate) is NH3__________________?


aHNO3 & limestone


bCO2 & H2SO4


c HNO3 & NH4Cl


d CO2 & KNO3


View Answer HNO3 & limestone

Leaching of phosphate rock by strong ____________ acid produces phosphoric acid ?


aSulphuric


bHydrochloric


cEither A. or B.


dNeither A. nor B.


View Answer Either A. or B.

Which of the following is not a mixed fertiliser ?


aNitrophosphate


bCalcium ammonium nitrate (CAN)


cAmmonium phosphate


dNone of these



Flushing liquor used for cooling coke oven gas constitutes of __________________?


aAmmoniacal liquor


bK2CO3 solution


cDilute H2SO4


dDilute HCl


View Answer Ammoniacal liquor

On prolonged exposure to high concentration of carbon monoxide (> 5000 ppm), man dies because __________________?


aOf clotting of blood


bOf jamming of respiratory tract


cIt forms carboxyhemoglobin by combining with haemoglobin of blood, thereby making it incapable of absorbing oxygen


dIt forms CO2 by combining with oxygen present in the blood



There are thirteen metals which are treated as pollutants. Which of the following metals is not a pollutant ?


aMercury


bArsenic


cAluminium


dLead


View Answer Aluminium

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