Fertiliser Technology Prilling of urea should be accomplished (in a sprayer) just above the melting point of urea with minimum of retention time, otherwise it will result in Low bulk density product Substantially wet non-flowing and sticky product Non-spherical prills Biuret formation Low bulk density product Substantially wet non-flowing and sticky product Non-spherical prills Biuret formation ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Maximum stability of white phosphorous is at >600°C Very high pressure Room temperature Atmospheric pressure >600°C Very high pressure Room temperature Atmospheric pressure ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Which of the following set of conditions is favourable for the maximum yield of ammonia by Haber's process? High pressure, high reactants concentration, low temperature Low pressure, high reactants concentration, low temperature High pressure, low reactants concentration, low temperature High pressure, low reactants concentration, high temperature High pressure, high reactants concentration, low temperature Low pressure, high reactants concentration, low temperature High pressure, low reactants concentration, low temperature High pressure, low reactants concentration, high temperature ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Which of the following nitrogenous fertilisers has the highest percentage of nitrogen? Calcium ammonium nitrate (CAN) Urea Calcium nitrate Ammonium sulphate Calcium ammonium nitrate (CAN) Urea Calcium nitrate Ammonium sulphate 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 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 None of these Space velocity of gas is very low resulting in decreased conversion Very high pressure is required resulting in costly pressure vessel ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Electric furnace method for production of phosphorous uses phosphate rock Silica and coke And sulphuric acid And coke And phosphoric acid Silica and coke And sulphuric acid And coke And phosphoric acid ANSWER DOWNLOAD EXAMIANS APP
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