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.Management Sciences
Category: Fertilizer Technology
In the manufacture of urea, the intermediate chemical formed is__________________?
A. Biuret
B. Ammonium carbamate
C. Ammonium carbonate
D. None of these
Reaction of phosphate rock with 98% H2SO4 produces ______________________?
A. Ortho-phosphoric acid
B. Superphosphate
C. White phosphorous
D. None of these
Reaction of anhydrous liquid ammonia with ortho-phosphoric acid produces____________________?
A. Ammonium phosphate
B. Superphosphate
C. Triple superphosphate
D. None of these
In an ammonia plant, the purge off is essential to___________________?
A. Maintain inert gas concentration within a limit
B. Remove excess poisonous gases
C. Maintain H2 : N2 ratio at 3 :1
D. Remove uncondensed ammonia vapour
Nitrolime is chemically known as____________________?
A. Calcium nitrate
B. Ammonium nitrate
C. Calcium ammonium nitrate (CAN)
D. None of these
Gas based fertiliser plants use_________________?
A. Natural gas as a source of hydrogen
B. Natural gas as heating medium
C. Coal gas as a source of hydrogen
D. Coal gas as heating medium
Tricresyl phosphate is chemically represented as___________________?
A. (CH3 C6 H4)3 PO4
B. Ca10(PO4)3F6
C. (NH4)2HPO4
D. NH4H2PO4
A phosphatic fertiliser contains 16% P2O5. It could be________________?
A. Dicalcium phosphate
B. Superphosphate
C. Triple superphosphate
D. None of these
Maximum nitrogen percentage is in________________?
A. Ammonium sulphate
B. Calcium ammonium nitrate
C. Urea
D. Liquid ammonia
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