Fertiliser Technology Questions

• 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.
• Phosphorus vapour comprises of
• Which is the most suitable fertiliser for paddy?
• Superphosphate is manufactured by reacting phosphate rock with
• Commercial fertilisers are available mostly in the form of
• Urea is formed only
• Ammonia synthesis gas is produced from natural gas by
• Heating of orthophosphoric acid to 250°C produces
• Calcium ammonium nitrate (CAN) is
• Dehydration of ammonium carbamate (to produce urea) is a/an __________ reaction.
• Reaction of dilute sulphuric acid with phosphate rock produces
• During conversion of ammonium carbamate into urea, presence of large excess of water
• Fertiliser plant making ammonium sulphate employing gypsum-ammonia reaction (usual practice is to use ammonia and sulphuric acid) is located at
• Which of the following does not come under the category of 'secondary nutrient' for plant growth?
• Pick out the wrong statement.
• Vetrocoke solution is
• Ammonium sulphate fertiliser is
• CO2 present in reformed gas (obtained by steam reforming of naphtha) is removed by absorbing in
• Conditioners like finely divided peat are added to the fertiliser to
• Fertiliser plants get their N2 requirements