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 Fusion zone in the electric furnace used for reduction of phosphate rock to elemental phosphorous is maintained at __________ °C. 250-300 950-1050 1400-1450 500-750 250-300 950-1050 1400-1450 500-750 ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology HPO₃ is the chemical formula of __________ phosphoric acid. Meta None of these Ortho Pyro Meta None of these Ortho Pyro ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Both white phosphorous as well as red phosphorous Are soluble in CS₂ All of these Reacts with hot caustic soda solution to give phosphine Burns when heated in air Are soluble in CS₂ All of these Reacts with hot caustic soda solution to give phosphine Burns when heated in air ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Use of catalyst is a must in the ammonia manufacture, because the reaction is reversible as well as the heat of dissociation of N₂ & H₂ is high. The presence of promoter along with the catalyst helps in __________ of the catalyst. Improving the strength & heat resistance Increasing the effectiveness All of these Stabilisation Improving the strength & heat resistance Increasing the effectiveness All of these Stabilisation ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Conversion of yellow phosphorous to red phosphorous is done by heating it in covered retorts at __________ °C in absence of air. 250-400 50-80 800-900 1000-1200 250-400 50-80 800-900 1000-1200 ANSWER DOWNLOAD EXAMIANS APP
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