Fertiliser Technology Questions

• P2O5 content in triple superphosphate is about __________ percent.
• Which is a catalyst promoter used in catalytic ammonia synthesis reaction?
• (CH3 C6 H4)3 PO4 is the chemical formula of
• Catalyst used in Haber's process for ammonia production is
• Ammonium sulphate can be produced by reacting gypsum with
• Nitrogenous fertiliser is required
• The concentration (weight %) of nitric acid produced by the oxidation of ammonia and absorption of nitrogen oxides with water is about __________ percent.
• Prilling tower is found in the flowsheet for the manufacture of
• Phosphoric acid is produced in wet process from phosphate rock and
• Urea is represented as
• Reaction of orthophosphoric acid with soda ash produces
• Sodium tri poly phosphate (STPP) is manufactured by reaction of phosphoric acid with sodium
• Base suspension fertiliser essentially contains
• H3PO4 is the chemical formula of __________ phosphoric acid.
• Action of phosphoric acid on rock phosphate produces
• Red phosphorous is changed into white phosphorous by
• Hydrogen content of coke oven gas is __________ percent.
• Two gas based fertiliser plants are located in
• Lower temperature and large excess of ammonia in urea melt
• Urea is a __________ fertiliser.