Fertiliser Technology Plant tranquillisers Accelerate ripening of food and grain Produce seedless fruit Cause early maturation of plants Hold back stem growth and halt plants at a desired height Accelerate ripening of food and grain Produce seedless fruit Cause early maturation of plants Hold back stem growth and halt plants at a desired height ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Maximum stability of white phosphorous is at >600°C Atmospheric pressure Room temperature Very high pressure >600°C Atmospheric pressure Room temperature Very high pressure 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 All of these Stabilisation Improving the strength & heat resistance Increasing the effectiveness All of these Stabilisation ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Though liquid ammonia itself is a fertiliser (with 82% nitrogen content) yet it is commonly not used as such in a tropical country like India, because it Has a pungent smell Is in short supply Vaporises at normal temperature Is toxic and highly corrosive Has a pungent smell Is in short supply Vaporises at normal temperature Is toxic and highly corrosive 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 Very high pressure is required resulting in costly pressure vessel None of these Rate of reaction is very low Space velocity of gas is very low resulting in decreased conversion Very high pressure is required resulting in costly pressure vessel None of these Rate of reaction is very low Space velocity of gas is very low resulting in decreased conversion ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Temperature and pressure in ammonia converter is 450 atm, 550°C 450 atm, 200°C 200 atm, 1000°C 450 atm, 1000°C 450 atm, 550°C 450 atm, 200°C 200 atm, 1000°C 450 atm, 1000°C ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS