Iron is not used alone as a catalyst in ammonia synthesis, because None of these It gets oxidised above 500°C Its activity declines rapidly, if heated to above 520°C It decomposes ammonia TRUE ANSWER : ? YOUR ANSWER : ?
Yield of elemental phosphorous from rock phosphate is about __________ percent. 60-65 40-45 1-2 15-25 TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following gasifiers can be attached to coal based fertiliser plants? Gasifier working at 40 atm Kopper-Totzek gasifier Lurgi (high pressure) gasifier Gasifier working at 20 atm TRUE ANSWER : ? YOUR ANSWER : ?
An increase in the NH₃/CO₂ ratio in urea manufacture results in Decreased specific volume of molten mass Increased degree of conversion of CO₂ to urea Decreased degree of conversion of NH₃ to urea Decreased yield of urea TRUE ANSWER : ? YOUR ANSWER : ?
Phosphatic fertilisers Accelerate fruit formation in later stages of growth None of these Lessen the effect of excessive nitrogen application Are useful during early stage of the plant growth TRUE ANSWER : ? YOUR ANSWER : ?
Chemical formula of biuret is NH₃.COO.NH₃ NH₂.CO.NH₂ NH₄COONH₂ NH₂CONHCONH₂ TRUE ANSWER : ? YOUR ANSWER : ?
Conversion of yellow phosphorous to red phosphorous is done by heating it in covered retorts at __________ °C in absence of air. 50-80 1000-1200 800-900 250-400 TRUE ANSWER : ? YOUR ANSWER : ?
A fertiliser contains 82% N₂. It could be Urea Liquid NH₃ Ammonium nitrate None of these TRUE ANSWER : ? YOUR ANSWER : ?
Superphosphate is manufactured by reacting phosphate rock with Sulphuric acid Acetic acid None of these Aluminium chloride TRUE ANSWER : ? YOUR ANSWER : ?
In __________ converter for ammonia synthesis, the catalyst is arranged in the form of a single continuous bed. Kellog Claude Udhe Fauser-Monte Catini TRUE ANSWER : ? YOUR ANSWER : ?