Fertiliser Technology Iron is not used alone as a catalyst in ammonia synthesis, because It decomposes ammonia None of these Its activity declines rapidly, if heated to above 520°C It gets oxidised above 500°C It decomposes ammonia None of these Its activity declines rapidly, if heated to above 520°C It gets oxidised above 500°C ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Excessive use of chemical fertilisers causes shrivelling of the roots and wilting of the plant, because the Osmotic pressure of the soil water becomes less than that of the plant sap Osmotic pressure of the soil water becomes higher than that of the plant sap Soil becomes too acidic Soil becomes too alkaline Osmotic pressure of the soil water becomes less than that of the plant sap Osmotic pressure of the soil water becomes higher than that of the plant sap Soil becomes too acidic Soil becomes too alkaline ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Reaction of orthophosphoric acid with soda ash produces Nitrophosphate Tricresyl phosphate Tributyl phosphate Sodium tripolyphosphate (STPP) Nitrophosphate Tricresyl phosphate Tributyl phosphate Sodium tripolyphosphate (STPP) ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Which of the following is not a commercially used feed-stock for the production of ammonia synthesis gas? Water Coal/coke oven gas Tar Naphtha Water Coal/coke oven gas Tar Naphtha ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Raw materials required for the production of CAN (Calcium ammonium nitrate) is NH₃ HNO₃ & NH₄Cl HNO₃ & limestone CO₂ & H₂SO₄ CO₂ & KNO₃ HNO₃ & NH₄Cl HNO₃ & limestone CO₂ & H₂SO₄ CO₂ & KNO₃ ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Triple superphosphate which contains about 46% P₂O₅ is produced by the reaction of phosphate rock with ortho phosphoric acid of____percent concentration. 25-28 52-54 > 98 75-80 25-28 52-54 > 98 75-80 ANSWER DOWNLOAD EXAMIANS APP
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