Fertiliser Technology Conversion of yellow phosphorus to red phosphorous is done in retorts at 250-450°C in the Presence of a reducing atmosphere Presence of an oxidising atmosphere Presence of an inert atmosphere Absence of air Presence of a reducing atmosphere Presence of an oxidising atmosphere Presence of an inert atmosphere Absence of air ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Ammonium nitrate (a fertiliser) is coated with limestone powder to Avoid the risk of explosion Increase its nitrogen content Add extra nutrient as fertiliser Cut down its production cost Avoid the risk of explosion Increase its nitrogen content Add extra nutrient as fertiliser Cut down its production cost ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Reaction of cresylic acid with __________ produces tricresyl phosphate. Calcium phosphate Ammonium phosphate Phosphorous pentoxide Phosphorous oxychloride Calcium phosphate Ammonium phosphate Phosphorous pentoxide Phosphorous oxychloride ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Bio-fertilisers are cheaper, renewable and pollution free. They improve the __________ of the soil. Water holding capacity Texture All of these Nutrient supply Water holding capacity Texture All of these Nutrient supply ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Which of the following solvents is used for the extraction of H₃PO₄ from CaCl₂ solution during manufacture of ortho-phosphoric acid by wet process employing hydrochloric acid leaching? Butyl alcohol Iso propyl alcohol Hexane Toluene Butyl alcohol Iso propyl alcohol Hexane Toluene ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology In the manufacture of urea, the intermediate chemical formed is None of these Ammonium carbamate Ammonium carbonate Biuret None of these Ammonium carbamate Ammonium carbonate Biuret ANSWER DOWNLOAD EXAMIANS APP
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