Fertiliser Technology In the manufacture of orthophosphoric acid by strong H₂SO₄ leaching wet process, keeping the reactor temperature above 100°C, results in the formation of undesriable Pyrophosphoric acid Metaphosphoric acid CaSO₄ .½H₂O and CaSO₄ crystals All of these Pyrophosphoric acid Metaphosphoric acid CaSO₄ .½H₂O and CaSO₄ crystals All of these ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Raw materials required for the production of CAN (Calcium ammonium nitrate) is NH₃ HNO₃ & limestone CO₂ & H₂SO₄ CO₂ & KNO₃ HNO₃ & NH₄Cl HNO₃ & limestone CO₂ & H₂SO₄ CO₂ & KNO₃ HNO₃ & NH₄Cl ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Liquid ammonia is not used as such a fertiliser in tropical countries like India, because It is not available Its N₂ content is very low It is very costly It will evaporate on spraying It is not available Its N₂ content is very low It is very costly It will evaporate on spraying ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology A nitrogenous fertiliser contains 20% N₂. It could be Ammonium nitrate Ammonium chloride Urea Calcium ammonium nitrate (CAN) Ammonium nitrate Ammonium chloride Urea Calcium ammonium nitrate (CAN) ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Conversion of yellow phosphorus to red phosphorous is done in retorts at 250-450°C in the Presence of an inert atmosphere Presence of a reducing atmosphere Presence of an oxidising atmosphere Absence of air Presence of an inert atmosphere Presence of a reducing atmosphere Presence of an oxidising atmosphere Absence of air ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Multistage operation (as in the case of catalytic oxidation of SO₂) is not carried out for NH₃ synthesis, because of Higher pumping cost Chances of entrainment and disturbance of catalyst bed Comparatively higher pressure drop High cost of the high pressure vessel used for the reactor Higher pumping cost Chances of entrainment and disturbance of catalyst bed Comparatively higher pressure drop High cost of the high pressure vessel used for the reactor ANSWER DOWNLOAD EXAMIANS APP
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