Fertiliser Technology __________ is the undesirable by-product produced in the manufacture of urea. Ammonium carbonate Biuret Carbon dioxide Ammonium carbamate Ammonium carbonate Biuret Carbon dioxide Ammonium carbamate ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Which one of the following is used as a nitrogenous fertiliser, as a weed killer in the onion fields and for correcting acidic soils? Urea Calcium cyanamide Ammonium sulphate CAN Urea Calcium cyanamide Ammonium sulphate CAN ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology During conversion of ammonium carbamate into urea, presence of large excess of water Increases the yield of urea Does not affect the yield of urea Adversely affects the yield of urea Reduces the evaporator load by diluting the urea solution Increases the yield of urea Does not affect the yield of urea Adversely affects the yield of urea Reduces the evaporator load by diluting the urea solution ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Reaction of orthophosphoric acid with phosphate rock produces Superphosphate Metaphosphoric acid Monoammonium phosphate Triple superphosphate Superphosphate Metaphosphoric acid Monoammonium phosphate Triple superphosphate ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Though kinetics of ammonia synthesis dictates the use of low temperature for high equilibrium conversion, yet it is kept moderately high (550°C), because at low temperature Space velocity of gas is very low resulting in decreased conversion Rate of reaction is very low Very high pressure is required resulting in costly pressure vessel None of these Space velocity of gas is very low resulting in decreased conversion Rate of reaction is very low Very high pressure is required resulting in costly pressure vessel None of these ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Ammonium nitrate is Not hygroscopic Mixed with limestone powder to reduce its explosive nature before using it as a fertilizer Not prone to explosive thermal decomposition Having about 40% N₂ Not hygroscopic Mixed with limestone powder to reduce its explosive nature before using it as a fertilizer Not prone to explosive thermal decomposition Having about 40% N₂ ANSWER DOWNLOAD EXAMIANS APP
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