Fertiliser Technology Optimum reaction temperature in steam reforming of naphtha is __________ °C. 100-200 700 - 1000 1500-1700 300 - 450 100-200 700 - 1000 1500-1700 300 - 450 ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology An increase in the NH₃/CO₂ ratio in urea manufacture results in Increased degree of conversion of CO₂ to urea Decreased degree of conversion of NH₃ to urea Decreased specific volume of molten mass Decreased yield of urea Increased degree of conversion of CO₂ to urea Decreased degree of conversion of NH₃ to urea Decreased specific volume of molten mass Decreased yield of urea ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Heating a mixture of phosphate rock, coke and sand in an electric furnace produces Ammonium phosphate Superphosphate Phosphoric acid Phosphorous Ammonium phosphate Superphosphate Phosphoric acid Phosphorous 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
Fertiliser Technology Phosphatic fertilisers Lessen the effect of excessive nitrogen application Are useful during early stage of the plant growth None of these Accelerate fruit formation in later stages of growth Lessen the effect of excessive nitrogen application Are useful during early stage of the plant growth None of these Accelerate fruit formation in later stages of growth ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Phosphorus vapour comprises of P₃ P₂ P P₄ P₃ P₂ P P₄ ANSWER DOWNLOAD EXAMIANS APP
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