NPK means a __________ fertiliser.
Fertilizer plant getting its hydrogen requirement partly from coke oven gas is situated at
Which of the following nitrogenous fertilisers has the highest percentage of nitrogen ?
Nitrolime is
Nitric acid is produced on commercial scale in a fertiliser plant by
Nitrolime is chemically known as
Catalytic ammonia synthesis reaction as in Haber's process is
Nitrogen content of a nitrogenous fertiliser is 35%. It could be
Ammonium sulphate can be produced by reacting gypsum with
The concentration (weight %) of nitric acid produced by the oxidation of ammonia and absorption of nitrogen oxides with water is about __________ percent.
During conversion of ammonium carbamate into urea, presence of large excess of water
P2O5 content in triple superphosphate is about __________ percent.
Nitrogenous fertiliser is required
Urea is a __________ fertiliser.
Hydrogen content of coke oven gas is __________ percent.
H3PO4 is the chemical formula of __________ phosphoric acid.
Pick out the wrong statement.
Prilling tower is found in the flowsheet for the manufacture of
Reaction of dilute sulphuric acid with phosphate rock produces
Ammonium sulphate fertiliser is
Catalyst used in the manufacture of NH3 by Haber's process is finely divided
Fertiliser plant making ammonium sulphate employing gypsum-ammonia reaction (usual practice is to use ammonia and sulphuric acid) is located at
Calcium ammonium nitrate (CAN) is
Pick out the wrong statement.
Phosphorus vapour comprises of
Heating of orthophosphoric acid to 250°C produces
Which of the following does not come under the category of 'secondary nutrient' for plant growth?
Reaction of orthophosphoric acid with soda ash produces
Phosphoric acid is produced in wet process from phosphate rock and
Lower temperature and large excess of ammonia in urea melt