Fertiliser Technology Questions

• Which of the following is not a mixed fertiliser?
• Raw materials required for the production of CAN (Calcium ammonium nitrate) is NH3
• Optimum reaction temperature in steam reforming of naphtha is __________ °C.
• Pick out the correct statement.
• Rock phosphate used for the production of phosphatic fertiliser is mined at
• A nitrogenous fertiliser contains 20% N2. It could be
• Conversion achieved in HNO3 synthesis with the use of platinum catalyst is about 95-97%. The rate of formation of nitrogen dioxide from the oxidation of nitric acid is favoured by
• Formation of ammonium carbamate by reaction of NH3 with CO2 is a/an __________ reaction.
• Which of the following is a natural inorganic fertiliser?
• Reaction of orthophosphoric acid with phosphate rock produces
• pH value of soil is maintained at __________ by the addition of fertiliser for optimum growth and health of the plant.
• Yield of elemental phosphorous from rock phosphate is about __________ percent.
• A phosphatic fertiliser contains 16% P2O5. It could be
• CaH4(PO4)2 is the chemical formula of
• Which of the following is the costliest source of hydrogen needed for ammonia manufacture under Indian condition?
• Flushing liquor used for cooling coke oven gas constitutes of
• Liquid ammonia and 60% nitric acid reaction (which produces ammonium nitrate) is
• Conversion of yellow phosphorus to red phosphorous is done in retorts at 250-450°C in the
• Main constituent of phosphate rock is
• Temperature and pressure in ammonia converter is