Fertiliser Technology Questions

• Vapor phase reaction of ammonia & nitric acid to produce ammonium nitrate is termed as the __________ process.
• Pick out the wrong statement.
• Ammonium nitrate (a fertiliser) is coated with limestone powder to
• Catalyst used in the manufacture of NH3 by Haber's process is finely divided
• In calcium ammonium nitrate (CAN) fertil-ser
• Conversion of yellow phosphorous to red phosphorous is done by heating it in covered retorts at __________ °C in absence of air.
• Electric process as compared to wet process (for the manufacture of phosphoric acid)
• Pick out the wrong statement.
• Steam reforming of naphtha is a source of hydrogen production for nitrogeneous fertiliser industry. What is the usual ratio of steam to carbon maintained in the process of steam reforming of naphtha?
• Liquid ammonia is not used as such a fertiliser in tropical countries like India, because
• Potassic fertiliser is graded based on its __________ content.
• Fertiliser value of a nitrogeneous fertiliser is expressed in terms of its __________ content.
• Pick out the wrong statement.
• Maximum nitrogen percentage is in
• Electric furnace method for production of phosphorous uses phosphate rock
• Reaction of phosphate rock with 98% H2SO4 produces
• A fertiliser contains 82% N2. It could be
• Which of the following is the costliest method for commercial production of hydrogen for ammonia synthesis?
• Ammonia synthesis reaction is
• Maximum stability of white phosphorous is at