Fertiliser Technology Conversion of yellow phosphorus to red phosphorous is done in retorts at 250-450°C in the Absence of air Presence of a reducing atmosphere Presence of an inert atmosphere Presence of an oxidising atmosphere Absence of air Presence of a reducing atmosphere Presence of an inert atmosphere Presence of an oxidising atmosphere ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Which of the following does not come under the category of'primary nutrient' for plant growth? Potassium Nitrogen Phosphorous Sulphur Potassium Nitrogen Phosphorous Sulphur ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Ammonium nitrate is Not prone to explosive thermal decomposition Not hygroscopic Mixed with limestone powder to reduce its explosive nature before using it as a fertilizer Having about 40% N₂ Not prone to explosive thermal decomposition Not hygroscopic Mixed with limestone powder to reduce its explosive nature before using it as a fertilizer Having about 40% N₂ ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Vetrocoke solution is A mixture of Na₂CO₃ and As₂O₃ K₂SO₄ Na₂SO₄ A mixture of K₂CO₃ and As₂O₃ A mixture of Na₂CO₃ and As₂O₃ K₂SO₄ Na₂SO₄ A mixture of K₂CO₃ and As₂O₃ ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Nitric acid is produced on commercial scale in a fertiliser plant by CaNO₃ + H₂SO₄ reaction Passing air through high voltage electric arc None of these Oxidation of ammonia CaNO₃ + H₂SO₄ reaction Passing air through high voltage electric arc None of these Oxidation of ammonia ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Which of the following gasifiers can be attached to coal based fertiliser plants? Kopper-Totzek gasifier Lurgi (high pressure) gasifier Gasifier working at 20 atm Gasifier working at 40 atm Kopper-Totzek gasifier Lurgi (high pressure) gasifier Gasifier working at 20 atm Gasifier working at 40 atm ANSWER DOWNLOAD EXAMIANS APP
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