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

A. Thermal cracking
B. Steam reforming
C. Partial oxidation
D. Hydrogenation

A. NH2.CO.NH2
B. NH3.COO.NH3
C. NH2CONHCONH2
D. NH4COONH2

A. Meta-phosphoric acid
B. Pyrophosphoric acid
C. No change in it
D. None of these

A. Stems & leaves during early stage of plant growth
B. Starches of potatoes & grains
C. Sugar of fruits & vegetables
D. Fibrous materials of plants

A. Mono-calcium phosphate
B. Di-calcium phosphate
C. Fluorspar
D. None of these

A. 13% N2 and 43% P2O5
B. 43% N2 and 13% P2O5
C. 43% N2 and 13% K2O
D. 43% K2O and 43% P2O5

A. N2
B. KNO3
C. NO2
D. NHO3

A. Rate of reaction is very low
B. Very high pressure is required resulting in costly pressure vessel
C. Space velocity of gas is very low resulting in decreased conversion
D. None of these

A. 25-28
B. 52-54
C. 75-80
D. > 98