Potassic fertilisers
Which of the following fertilisers contains the least percentage of nitrogen?
Fauser Monte Catini converter is used for
Ammonium nitrate is
Tricresyl phosphate is chemically represented as
Which one of the following is used as a nitrogenous fertiliser, as a weed killer in the onion fields and for correcting acidic soils ?
Plant tranquillisers
Dehydration of ammonium carbamate to yield urea is a/an __________ reaction.
An increase in the NH3/CO2 ratio in urea manufacture results in
P2O5 percentage in the phosphoric acid produced by wet process is about
Ammonia synthesis gas is produced from fuel oil by
The main constituent of rock phosphate is
In the manufacture of H3 PO4 (ortho), ; strong H2 SO4 leaching wet process as compared to electric furnace process
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.
Phosphatic fertiliser is graded based on its __________ content.
Urea is a better fertilizer than ammonium sulphate, because
Reaction of cresylic acid with __________ produces tricresyl phosphate.
Steam reforming of naphtha produces ammonia synthesis gas. This is a/an __________ process.
__________ catalyst is used in the production of urea from CO2 and NH3.
Triple superphosphate which contains aboutP2O5 is produced by the reaction of phosphate rock with ortho phosphoric acid of____percent concentration.
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.
Though kinetics of ammonia synthesis dictates the use of low temperature for high equilibrium conversion, yet it is kept moderately high (550°C), because at low temperature
Iron is not used alone as a catalyst in ammonia synthesis, because
Out of the following, N2 content is minimum in
Which of the following is not a measure component necessarily to be present in fertilisers?
In the manufacture of urea, the intermediate chemical formed is
With increases in pressure, the conversion of ammonium carbamate into urea
Raw materials for nitric acid manufacture are
5-10-5 fertilisers mean that they contain
Color of nitric acid is light yellow due to the presence of