Fertiliser Technology - Study Mode
[#11] Maximum nitrogen percentage is in
Correct Answer
(D) Liquid ammonia
[#12] Use of catalyst is a must in the ammonia manufacture, because the reaction is reversible as well as the heat of dissociation of N 2 & H 2 is high. The presence of promoter along with the catalyst helps in __________ of the catalyst.
Correct Answer
(D) All of the above
[#13] Low grade phosphate rock can be used in electrical furnace, because
Correct Answer
(A) Of the better CaO/SiO 2 balance for slag formation
[#14] Conversion of yellow phosphorus to red phosphorous is done in retorts at 250-450°C in the
Correct Answer
(C) Absence of air
[#15] Catalyst used in the oxidation of ammonia is
Correct Answer
(B) Platinum-rhodium