Fertiliser Technology - Study Mode
[#191] Heating of orthophosphoric acid to about 900°C, produces
Correct Answer
(A) Metaphosphoric acid
[#192] A potassic fertiliser contains 50% K 2 O. It could be
Correct Answer
(A) Potassium sulphate
[#193] Liquid ammonia is not used as such a fertiliser in tropical countries like India, because
Correct Answer
(C) It will evaporate on spraying
[#194] Which one of the following is used as a nitrogenous fertiliser, as a weed killer in the onion fields and for correcting acidic soils?
Correct Answer
(D) Calcium cyanamide
[#195] Multistage operation (as in the case of catalytic oxidation of SO 2 ) is not carried out for NH 3 synthesis, because of
Correct Answer
(B) High cost of the high pressure vessel used for the reactor