Chemical Engineering MCQs

Page No. 5

Nitrolime is___________________?


aCalcium nitrate

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bCalcium ammonium nitrate

✓


cA mixture of nitric acid and lime

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dA mixture of ammonium nitrate and calcium nitrate

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Tricresyl phosphate is chemically represented as___________________?


a(CH3 C6 H4)3 PO4

✓


bCa10(PO4)3F6

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c(NH4)2HPO4

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dNH4H2PO4

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View Answer (CH3 C6 H4)3 PO4

Ammonium nitrate is___________________?


aHaving about 40% N2

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bNot hygroscopic

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c Not prone to explosive thermal decomposition

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dMixed with limestone powder to reduce its explosive nature before using it as a fertilizer

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____________ catalyst is used in the production of urea from CO2 and NH3?


aVanadium pentoxide

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bNo

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c Alumina

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dNickel

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View Answer No

Triple superphosphate is made by reacting phosphate rock with _____________ acid?


aPhosphoric

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bNitric

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cSulphuric

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dHydrochloric

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View Answer Phosphoric

The most suitable fertiliser for accelerating seeding or fruit formation in later stages of plant growth is _____________ fertiliser?


aNitrogenous

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b Phosphatic

✓


cPotassic

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dNone of these

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View Answer Phosphatic

Which one of the following is used as a nitrogenous fertiliser, as a weed killer in the onion fields and for correcting acidic soils ?


aUrea

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bCAN

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cAmmonium sulphate

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dCalcium cyanamide

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View Answer Calcium cyanamide

Catalytic ammonia synthesis reaction as in Haber’s process is_________________?


aEndothermic

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bExothermic

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cIrreversible

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dNone of these

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View Answer Exothermic

H4P2O7 is the chemical formula of _____________ phosphoric acid?


aPyro

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bOrtho

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cMeta

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dNone of these

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View Answer Pyro

-10-5 fertilisers mean that they contain______________?


a5, 10, 5% respectively of N2, P2O5 and K2O

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b Only 5 to 10% active fertiliser constituents

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c5 to 10% filler & carrier of soil conditioners

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dNone of these

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