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Phosphatic fertiliser is graded based on its _____________ content?
Related MCQs
Use of catalyst is a must in the ammonia manufacture, because the reaction is reversible as well as the heat of dissociation of N2 & H2 is high. The presence of promoter along with the catalyst helps in __________ of the catalyst ?
Naphtha in a fertiliser plant is used as a source of__________?
Low grade phosphate rock can be used in electrical furnace, because__________?
Commercial production of hydrogen for the manufacture of nitrogenous fertilisers is done by__________?
Reaction of Cresylic acid with __________ produces Tricresyl phosphate?
Phosphorus vapour comprises of __________?
__________ is the most suitable fertiliser for paddy?
A mixture of phosphate rock __________ is heated in an electric furnace to produce phosphorous?
Urea is formed only__________?
Which of the following is the costliest method for commercial production of hydrogen for ammonia synthesis ?
Sodium tri poly phosphate (STPP) is manufactured by reaction of phosphoric acid with sodium__________?
Montecatini process is used for the manufacture of__________?
Bio-fertilisers are cheaper, renewable and pollution free. They improve the __________ of the soil?
Lower temperature and large excess of ammonia in urea melt__________?
Heating of coke, sand & phosphate rock in an electric furnace is done for the manufacture of__________?
The concentration (weight %) of nitric acid produced by the oxidation of ammonia and absorption of nitrogen oxides with water is about __________ percent?
Yield of urea can be increased with excess ammonia and higher pressure & temperature, but because of __________ this is normally not done?
Which of the following is not a measure component necessarily to be present in fertilisers ?
Fertiliser plants get their N2 requirements __________?
Maximum nitrogen percentage is in__________?
An increase in the NH3/CO2 ratio in urea manufacture results in__________?
Electric furnace method for production of phosphorous uses phosphate rock and __________?
Urea is a better fertilizer than ammonium sulphate, because__________?
Conditioners like finely divided peat are added to the fertiliser to__________?
Which of the following is not a commercially used feed-stock for the production of ammonia synthesis gas ?
Color of nitric acid is light yellow due to the presence of__________?
Catalyst used in steam reforming of naphtha is__________?
Steam reforming of naphtha produces ammonia synthesis gas. This is a/an __________ process?
Multistage operation (as in the case of catalytic oxidation of SO2) is not carried out for NH3 synthesis, because of__________?
Nitrolime is__________?
Tricresyl phosphate is chemically represented as__________?
Ammonium nitrate is__________?
__________ catalyst is used in the production of urea from CO2 and NH3?
Triple superphosphate is made by reacting phosphate rock with __________ acid?
The most suitable fertiliser for accelerating seeding or fruit formation in later stages of plant growth is __________ fertiliser?
Which one of the following is used as a nitrogenous fertiliser, as a weed killer in the onion fields and for correcting acidic soils ?
Catalytic ammonia synthesis reaction as in Haber’s process is__________?
H4P2O7 is the chemical formula of __________ phosphoric acid?
-10-5 fertilisers mean that they contain__________?
Reaction of anhydrous liquid ammonia with ortho-phosphoric acid produces__________?
In ammonia synthesis (N2 + 3H2 = 2NH3), there is a decrease in total volume, hence to get high equilibrium conversion, the reaction should be carried out at__________?
Nitric acid is produced on commercial scale in a fertiliser plant by__________?
With increases in pressure, the conversion of Ammonium carbamate into urea__________?
Nitrogen content of urea is about __________ percent ?
Nitrogen content of a nitrogenous fertiliser is 35%. It could be__________?
Plant tranquillisers__________?
Raw materials for nitric acid manufacture are__________?
Phosphatic fertiliser is graded based on its _____________ content?
A. P2O3
B. PCl5
C. P2O5
D. H3PO4
Correct Answer:
P2O5
✔
Last Updated:
March 11, 2019