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.Management Sciences
Category: Fertilizer Technology
H4P2O7 is the chemical formula of _____________ phosphoric acid?
0
A. Pyro
B. Ortho
C. Meta
D. None of these
P2O5 content in triple superphosphate is about ______________ percent?
A. 42-50
B. 15-20
C. 85-90
D. 70-75
Raw materials for urea production are _________________?
A. CO2 and N2
B. CO2, H2 and N2
C. NH3 and CO
D. HNO3 and CaCO3
Catalyst used in Haber’s process for ammonia production is_________________?
A. Reduced iron oxide
B. Nickel
C. Vanadium pentoxide
D. Silica gel
Catalyst used in desulphurisation of naphtha is____________________?
A. Co-Mo
B. Pt-Rh
C. Silica gel
D. Nickel
Electric furnace method for production of phosphorous uses phosphate rock and _________________________?
A. Phosphoric acid
B. Coke
C. Sulphuric acid
D. Silica and coke
Main component of bone ash is _________________?
A. Calcium sulphate
B. Calcium phosphate
C. Calcium carbonate
D. Sodium phosphate
In _____________ converter for ammonia synthesis, the catalyst is arranged in the form of a single continuous bed?
A. Fauser-Montecatini
B. Claude
C. Uhde
D. Kellogg
Low grade phosphate rock can be used in electrical furnace, because__________________?
A. Of the better CaO/SiO2 balance for slag formation
B. CaO content is less
C. It is cheap
D. It produces low cost product
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