Fertiliser Technology Questions

• Dehydration of ammonium carbamate to yield urea is a/an __________ reaction.
• Heating of coke, sand & phosphate rock in an electric furnace is done for the manufacture of
• A fertiliser plant is classified as a gas based fertiliser plant, when it uses __________ gas as a source of hydrogen for the manufacture of ammonia.
• Nitrolime is chemically known as
• The main constituent of rock phosphate is
• Bio-fertilisers are cheaper, renewable and pollution free. They improve the __________ of the soil.
• Iron is not used alone as a catalyst in ammonia synthesis, because
• An increase in the NH3/CO2 ratio in urea manufacture results in
• Which of the following nitrogenous fertilisers has the highest percentage of nitrogen?
• Which of the following solvents is used for the extraction of H3PO4 from CaCl2 solution during manufacture of ortho-phosphoric acid by wet process employing hydrochloric acid leaching?
• Which of the following does not come under the category of 'micro-nutrient' for plant growth?
• Reaction of cresylic acid with __________ produces tricresyl phosphate.
• __________ is required more for leafy crops.
• Monte catini process is a widely used process for the manufacture of
• Pick out the wrong statement.
• NPK means a __________ fertiliser.
• Ammonia synthesis gas is produced from fuel oil by
• The composition of fresh feed to the high temperature, high pressure urea autoclave is
• P2O5 percentage in the phosphoric acid produced by wet process is about
• Hydrogen is recovered from coke oven gas on commercial scale (as practised in fertiliser plant at Rourkela) by