Fertiliser Technology Temperature and pressure in ammonia converter is 200 atm, 1000°C 450 atm, 200°C 450 atm, 550°C 450 atm, 1000°C 200 atm, 1000°C 450 atm, 200°C 450 atm, 550°C 450 atm, 1000°C ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Yield of urea can be increased with excess ammonia and higher pressure & temperature, but because of __________ this is normally not done. Increased biuret formation All of these Increased cost of equipment High corrosion rate Increased biuret formation All of these Increased cost of equipment High corrosion rate ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Urea is formed only At very high temperature In liquid phase At very low pressure (vacuum) In vapour phase At very high temperature In liquid phase At very low pressure (vacuum) In vapour phase 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 Stabilisation All of these Improving the strength & heat resistance Increasing the effectiveness Stabilisation All of these ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology With increases in pressure, the conversion of ammonium carbamate into urea Can either increase or decrease depends on biuret content Increases Decreases Remains unaltered Can either increase or decrease depends on biuret content Increases Decreases Remains unaltered ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Chemical formula of biuret is NH₃.COO.NH₃ NH₄COONH₂ NH₂.CO.NH₂ NH₂CONHCONH₂ NH₃.COO.NH₃ NH₄COONH₂ NH₂.CO.NH₂ NH₂CONHCONH₂ ANSWER DOWNLOAD EXAMIANS APP