Fertilizer Technology MCQs

186 MCQs  — Chemical Engineering MCQs  (Page 12 of 19)

Attempt Fertilizer Technology Quiz
Reaction of ortho-phosphoric acid with phosphate rock produces _________________?
A. Superphosphate
B. Triple superphosphate
C. Meta-phosphoric acid
D. Monoammonium phosphate
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A phosphatic fertiliser contains 16% P2O5. It could be________________?
A. Dicalcium phosphate
B. Superphosphate
C. Triple superphosphate
D. None of these
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Fusion zone in the electric furnace used for reduction of phosphate rock to elemental phosphorous is maintained at ______________ °C?
A. 250-300
B. 500-750
C. 950-1050
D. 1400-1450
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Formation of ammonium carbamate by reaction of NH3 with CO2 is a/an ______________ reaction?
A. Catalytic
B. Exothermic
C. Endothermic
D. Reversible
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Raw materials for urea production are _________________?
A. Co2 and n2
B. Co2, h2 and n2
C. Nh3 and co
D. Hno3 and caco3
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Temperature and pressure in ammonia converter is_________________?
A. 200 atm, 1000°c
B. 450 atm, 200°c
C. 450 atm, 550°c
D. 450 atm, 1000°c
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C/H ratio (by weight) of naphtha used in nitrogenous fertiliser making is about_________________?
A. 2
B. 6
C. 13
D. 20
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CaH4(PO4)2 is the chemical formula of ___________________?
A. Superphosphate
B. Triple superphosphate
C. Calcium phosphate
D. Meta phosphoric acid
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In natural gas, the C/H ratio (by weight) varies in the range of_________________?
A. 3-4
B. 8-10
C. 15-17
D. 20-25
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Conversion of yellow phosphorus to red phosphorous is done in retorts at 250-450°C in the ___________________?
A. Presence of an inert atmosphere
B. Presence of a reducing atmosphere
C. Absence of air
D. Presence of an oxidising atmosphere
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Word of the Day
23 Jul
Aisle
a passage between rows of seats in a building such as a church or theatre, an aircraft, or train.
طویل تنگ راستہ، نشتوں کے درمیان راستہ

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