Heating of orthophosphoric acid to 250°C produces None of these No change in it Pyrophosphoric acid Metaphosphoric acid TRUE ANSWER : ? YOUR ANSWER : ?
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? Toluene Iso propyl alcohol Butyl alcohol Hexane TRUE ANSWER : ? YOUR ANSWER : ?
Biuret formation in urea is kept at minimum (< 1 %), because it is Helpful in decomposition of urea Toxic and harmful to some crops Explosive in nature Corrosive in nature TRUE ANSWER : ? YOUR ANSWER : ?
Prilling tower is found in the flowsheet for the manufacture of Urea Ammonia Superphosphate Triple superphosphate TRUE ANSWER : ? YOUR ANSWER : ?
Dehydration of ammonium carbamate to yield urea is a/an __________ reaction. Exothermic Catalytic Autocatalytic Endothermic TRUE ANSWER : ? YOUR ANSWER : ?
Conversion of yellow phosphorous to red phosphorous is done by heating it in covered retorts at __________ °C in absence of air. 1000-1200 250-400 800-900 50-80 TRUE ANSWER : ? YOUR ANSWER : ?
Ammonium sulphate can be produced by reacting gypsum with None of these Nitric acid Ammonium carbonate Ammonia TRUE ANSWER : ? YOUR ANSWER : ?
The composition of fresh feed to the high temperature, high pressure urea autoclave is Excess liquid ammonia and compressed CO₂ gas Liquid ammonia and excess compressed CO₂ Excess liquid ammonia and liquefied CO₂ Compressed ammonia gas and excess compressed CO₂ TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following nitrogenous fertilisers has the highest percentage of nitrogen? Ammonium sulphate Calcium nitrate Urea Calcium ammonium nitrate (CAN) TRUE ANSWER : ? YOUR ANSWER : ?