A. Fauser-Montecatini
B. Claude
C. Uhde
D. Kellogg
A. Calcium nitrate
B. Calcium ammonium nitrate (CAN)
C. Urea
D. Ammonium sulphate
Which of the following nitrogenous fertilisers has the highest percentage of nitrogen ? Read More »
Fertilizer Technology A. Acetic acid
B. Sulphuric acid
C. Aluminium chloride
D. None of these
Superphosphate is manufactured by reacting phosphate rock with_____________________? Read More »
Fertilizer Technology A. Maintain inert gas concentration within a limit
B. Remove excess poisonous gases
C. Maintain H2 : N2 ratio at 3 :1
D. Remove uncondensed ammonia vapour
In an ammonia plant, the purge off is essential to___________________? Read More »
Fertilizer Technology A. Thermal cracking
B. Steam reforming
C. Partial oxidation
D. Hydrogenation
Ammonia synthesis gas is produced from natural gas by___________________? Read More »
Fertilizer Technology A. NH2.CO.NH2
B. NH3.COO.NH3
C. NH2CONHCONH2
D. NH4COONH2
Chemical formula of biuret is_________________? Read More »
Fertilizer Technology A. Meta-phosphoric acid
B. Pyrophosphoric acid
C. No change in it
D. None of these
Heating of ortho-phosphoric acid to 250°C produces___________________? Read More »
Fertilizer Technology A. Stems & leaves during early stage of plant growth
B. Starches of potatoes & grains
C. Sugar of fruits & vegetables
D. Fibrous materials of plants
Potassic fertilisers do not promote the development of ______________________? Read More »
Fertilizer Technology A. Mono-calcium phosphate
B. Di-calcium phosphate
C. Fluorspar
D. None of these
The main constituent of rock phosphate is _____________________? Read More »
Fertilizer Technology A. 13% N2 and 43% P2O5
B. 43% N2 and 13% P2O5
C. 43% N2 and 13% K2O
D. 43% K2O and 43% P2O5
Base suspension fertiliser essentially contains___________________? Read More »
Fertilizer Technology