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Dehydration of ammonium carbamate produces__________________?
Related MCQs
P2O5 content in superphosphate is about __________ percent?
Promoter used in NH3 synthesis catalyst is__________?
Maximum stability of white phosphorous is at__________?
Potassic fertilisers__________?
Which is the most suitable fertiliser for paddy ?
Catalyst used in ammonia synthesis uses __________ as a promoter?
A fertiliser plant is classified as a gas based fertiliser plant, when it uses __________ gas as a source of hydrogen for the manufacture of ammonia?
Commercial fertilisers are available mostly in the form of__________?
Nitrogenous fertiliser is required__________?
Ammonia synthesis reaction is__________?
During nitric acid manufacture, catalytic oxidation of ammonia at 800°C in presence of platinum catalyst produces nitrogen oxide. Conversion of NH3 to NO is about __________ percent?
(CH3 C6 H4)3 PO4 is the chemical formula of__________?
HPO3 is the chemical formula of __________ phosphoric acid?
Reaction of __________ acid with phosphate rock produces superphosphates?
Conversion of yellow phosphorous to red phosphorous is done by heating it in covered retorts at __________ °C in absence of air?
Which of the following gasifiers can be attached to coal based fertiliser plants ?
Phosphatic fertiliser is graded based on its __________ content?
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?
Dehydration of ammonium carbamate produces__________________?
A. Urea
B. Biuret
C. Ammonia water
D. None of these
Correct Answer:
Urea
✔
Last Updated:
March 11, 2019