Fertiliser Technology Which of the following solvents is used for the extraction of H₃PO₄ from CaCl₂ solution during manufacture of ortho-phosphoric acid by wet process employing hydrochloric acid leaching? Butyl alcohol Toluene Hexane Iso propyl alcohol Butyl alcohol Toluene Hexane Iso propyl alcohol ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Which is the best fertiliser for paddy? Ammonium sulphate Nitro-phosphate Superphosphate Potassium nitrate Ammonium sulphate Nitro-phosphate Superphosphate Potassium nitrate ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology In the manufacture of H₃ PO₄ (ortho), ; strong H₂ SO₄ leaching wet process as compared to electric furnace process Requires lower capital investment in the plant Is very costly Produces lower purity acid Uses lower grade phosphate rock Requires lower capital investment in the plant Is very costly Produces lower purity acid Uses lower grade phosphate rock ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Triple superphosphate which contains about 46% P₂O₅ is produced by the reaction of phosphate rock with ortho phosphoric acid of____percent concentration. 52-54 > 98 75-80 25-28 52-54 > 98 75-80 25-28 ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Which of the following does not come under the category of'primary nutrient' for plant growth? Nitrogen Phosphorous Sulphur Potassium Nitrogen Phosphorous Sulphur Potassium ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology In ammonia synthesis (N₂ + 3H₂ = 2NH₃), there is a decrease in total volume, hence to get high equilibrium conversion, the reaction should be carried out at Low pressure High pressure Very high temperature Atmospheric pressure; as the pressure has no effect on conversion Low pressure High pressure Very high temperature Atmospheric pressure; as the pressure has no effect on conversion ANSWER DOWNLOAD EXAMIANS APP
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