Fertiliser Technology Conversion of yellow phosphorus to red phosphorous is done in retorts at 250-450°C in the Presence of a reducing atmosphere Absence of air Presence of an oxidising atmosphere Presence of an inert atmosphere Presence of a reducing atmosphere Absence of air Presence of an oxidising atmosphere Presence of an inert atmosphere ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Reaction of orthophosphoric acid with soda ash produces Sodium tripolyphosphate (STPP) Tricresyl phosphate Tributyl phosphate Nitrophosphate Sodium tripolyphosphate (STPP) Tricresyl phosphate Tributyl phosphate Nitrophosphate ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology In the manufacture of orthophosphoric acid by strong H₂SO₄ leaching wet process, keeping the reactor temperature above 100°C, results in the formation of undesriable Pyrophosphoric acid CaSO₄ .½H₂O and CaSO₄ crystals All of these Metaphosphoric acid Pyrophosphoric acid CaSO₄ .½H₂O and CaSO₄ crystals All of these Metaphosphoric acid ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Temperature and pressure in urea autoclave is 190°C and 200 atm 200°C and 10 atm 400°C and 550 atm 120°C and 300 atm 190°C and 200 atm 200°C and 10 atm 400°C and 550 atm 120°C and 300 atm ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Excessive use of chemical fertilisers causes shrivelling of the roots and wilting of the plant, because the Soil becomes too acidic Osmotic pressure of the soil water becomes higher than that of the plant sap Osmotic pressure of the soil water becomes less than that of the plant sap Soil becomes too alkaline Soil becomes too acidic Osmotic pressure of the soil water becomes higher than that of the plant sap Osmotic pressure of the soil water becomes less than that of the plant sap Soil becomes too alkaline ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Commercial fertilisers are available mostly in the form of Flakes Lumps Grannules Powder Flakes Lumps Grannules Powder ANSWER DOWNLOAD EXAMIANS APP
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