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.Management Sciences
Category: Fertilizer Technology
Out of the following, N2 content is minimum in_____________________?
A. Urea
B. Ammonium nitrate
C. Ammonium sulphate
D. Ammonium chloride
Montecatini process is a widely used process for the manufacture of ___________________?
A. Urea
B. Calcium ammonium nitrate
C. Triple superphosphate
D. None of these
Vapor phase reaction of ammonia & nitric acid to produce ammonium nitrate is termed as the _______________ process?
A. Haber’s
B. Stengel
C. Le-chatelier’s
D. Du-pont’s
Excessive use of chemical fertilisers causes shrivelling of the roots and wilting of the plant, because the__________________?
A. Osmotic pressure of the soil water becomes less than that of the plant sap
B. Soil becomes too alkaline
C. Osmotic pressure of the soil water becomes higher than that of the plant sap
D. Soil becomes too acidic
Ammonium nitrate (is mixed with limestone) is not used as fertiliser as such, because______________________?
A. It is hygroscopic and explosive in nature
B. It is highly acidic in nature
C. It is a liquid at room temperature
D. Its nitrogen content is very less
Reaction of nitric acid and sulphuric acid with phosphate rock produces_________________?
A. Nitrophosphate
B. Diammonium phosphate
C. Tricresyl phosphate
D. Tributyl phosphate
Temperature and pressure in ammonia converter is_________________?
A. 200 atm, 1000°C
B. 450 atm, 200°C
C. 450 atm, 550°C
D. 450 atm, 1000°C
Catalyst used in steam reforming of naphtha is ___________________?
A. Bauxite
B. Cobalt
C. Nickel oxide on alumina support
D. Chromium
An increase in the NH3/CO2 ratio in urea manufacture results in__________________?
A. Increased degree of conversion of CO2 to urea
B. Decreased degree of conversion of NH3 to urea
C. Decreased yield of urea
D. Decreased specific volume of molten mass
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