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Which is a catalyst promoter used in catalytic ammonia synthesis reaction ?
Related MCQs
Nitrogen content of calcium ammonium nitrate (CAN) is __________ percent?
__________ is required more for leafy crops?
Catalyst used in the manufacture of NH3 by Haber’s process is finely divided__________?
A fertiliser contains 82% N2. It could be__________?
The composition of fresh feed to the high temperature, high pressure urea autoclave is__________?
Dehydration of ammonium carbamate (to produce urea) is a/an __________ reaction?
Potassic fertiliser is graded based on its __________ content?
Fertiliser produced during soda ash manufacture by dual process is ammonium__________?
Electric process as compared to wet process (for the manufacture of phosphoric acid) ?
Rock phosphate constitutes mainly of__________?
Iron is not used alone as a catalyst in ammonia synthesis, because__________?
Phosphoric acid is produced in wet process from phosphate rock and__________?
The optimum size of the ammonia plant is __________ tons/day?
Out of the following, N2 content is minimum in__________?
Ammonium sulphate can be produced by reacting gypsum with__________?
Ammonium nitrate (is mixed with limestone) is not used as fertiliser as such, because__________?
NPK means a __________ fertiliser?
Calcium ammonium nitrate (CAN) is__________?
Dehydration of ammonium carbamate produces__________?
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__________?
Which is a catalyst promoter used in catalytic ammonia synthesis reaction ?
A. Al2O3
B. Cr2O3
C. K2O
D. MnO
Correct Answer:
K2O
✔
Last Updated:
March 11, 2019