Fertiliser Technology Which of the following nitrogenous fertilisers has the highest percentage of nitrogen? Calcium ammonium nitrate (CAN) Calcium nitrate Urea Ammonium sulphate Calcium ammonium nitrate (CAN) Calcium nitrate Urea Ammonium sulphate ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Iron is not used alone as a catalyst in ammonia synthesis, because It gets oxidised above 500°C None of these It decomposes ammonia Its activity declines rapidly, if heated to above 520°C It gets oxidised above 500°C None of these It decomposes ammonia Its activity declines rapidly, if heated to above 520°C ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology CO₂ present in reformed gas (obtained by steam reforming of naphtha) is removed by absorbing in Mono-ethanolamine (MEA) Slaked lime Methyl-Ethyl Ketone (MEK) Ammoniacal liquor Mono-ethanolamine (MEA) Slaked lime Methyl-Ethyl Ketone (MEK) Ammoniacal liquor ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Heating of coke, sand & phosphate rock in an electric furnace is done for the manufacture of Phosphorous Triple superphosphate Superphosphate Phosphoric acid Phosphorous Triple superphosphate Superphosphate Phosphoric acid ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology The essential ingradient of all the synthesis gas is N₂ CO₂ H₂ O₂ N₂ CO₂ H₂ O₂ 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 None of these Space velocity of gas is very low resulting in decreased conversion Very high pressure is required resulting in costly pressure vessel Rate of reaction is very low None of these Space velocity of gas is very low resulting in decreased conversion Very high pressure is required resulting in costly pressure vessel Rate of reaction is very low ANSWER DOWNLOAD EXAMIANS APP
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