Fertiliser Technology Conversion of yellow phosphorous to red phosphorous is done by heating it in covered retorts at __________ °C in absence of air. 50-80 250-400 800-900 1000-1200 50-80 250-400 800-900 1000-1200 ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Yield of elemental phosphorous from rock phosphate is about __________ percent. 1-2 15-25 40-45 60-65 1-2 15-25 40-45 60-65 ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Reaction of __________ acid with phosphate rock produces superphosphates. Phosphoric Sulphuric Nitric Hydrochloric Phosphoric Sulphuric Nitric Hydrochloric ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Catalyst used in Haber's process for ammonia production is Silica gel Nickel Vanadium pentoxide Reduced iron oxide Silica gel Nickel Vanadium pentoxide Reduced iron oxide ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Steam reforming of naphtha produces ammonia synthesis gas. This is a/an __________ process. Autocatalytic Endothermic Non-catalytic Exothermic Autocatalytic Endothermic Non-catalytic Exothermic ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology H₄P₂O₇ is the chemical formula of __________ phosphoric acid. None of these Ortho Pyro Meta None of these Ortho Pyro Meta ANSWER DOWNLOAD EXAMIANS APP
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