Fertiliser Technology Heating a mixture of phosphate rock, coke and sand in an electric furnace produces Phosphoric acid Superphosphate Ammonium phosphate Phosphorous Phosphoric acid Superphosphate Ammonium phosphate Phosphorous ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Conversion of yellow phosphorus to red phosphorous is done in retorts at 250-450°C in the Absence of air Presence of an inert atmosphere Presence of a reducing atmosphere Presence of an oxidising atmosphere Absence of air Presence of an inert atmosphere Presence of a reducing atmosphere Presence of an oxidising atmosphere ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Ammonia synthesis reaction is Exothermic Endothermic Autocatalytic None of these Exothermic Endothermic Autocatalytic None of these ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Which of the following fertilisers contains the least percentage of nitrogen? Ammonium sulphate Liquid ammonia Urea Ammonium phosphate Ammonium sulphate Liquid ammonia Urea Ammonium phosphate 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 None of these Rate of reaction is very low Very high pressure is required resulting in costly pressure vessel Space velocity of gas is very low resulting in decreased conversion None of these Rate of reaction is very low Very high pressure is required resulting in costly pressure vessel ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Temperature and pressure in urea autoclave is 120°C and 300 atm 400°C and 550 atm 190°C and 200 atm 200°C and 10 atm 120°C and 300 atm 400°C and 550 atm 190°C and 200 atm 200°C and 10 atm ANSWER DOWNLOAD EXAMIANS APP
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