In the manufacture of H₃ PO₄ (ortho), ; strong H₂ SO₄ leaching wet process as compared to electric furnace process Is very costly Uses lower grade phosphate rock Requires lower capital investment in the plant Produces lower purity acid TRUE ANSWER : ? YOUR ANSWER : ?
Low grade coal is __________ to produce ammonia synthesis gas. Dehydrogenated Liquefied Hydrogenated Gasified TRUE ANSWER : ? YOUR ANSWER : ?
Liquid ammonia and 60% nitric acid reaction (which produces ammonium nitrate) is Autocatalytic Exothermic Endothermic None of these TRUE ANSWER : ? YOUR ANSWER : ?
A potassic fertiliser contains 50% K₂O. It could be Potassium sulphate A mixture of NaCl+ KCl None of these Potassium chloride TRUE ANSWER : ? YOUR ANSWER : ?
__________ is the most suitable fertiliser for paddy. Ammonium sulphate Superphosphate Urea Potassium nitrate TRUE ANSWER : ? YOUR ANSWER : ?
Urea (a nitrogeneous fertiliser) is produced from carbon dioxide and Nitric oxide Ammonium nitrate Nitric acid Ammonia TRUE ANSWER : ? YOUR ANSWER : ?
Nitric acid is produced on commercial scale in a fertiliser plant by Oxidation of ammonia None of these CaNO₃ + H₂SO₄ reaction Passing air through high voltage electric arc TRUE ANSWER : ? YOUR ANSWER : ?
Conversion of yellow phosphorus to red phosphorous is done in retorts at 250-450°C in the Absence of air Presence of an inert atmosphere Presence of an oxidising atmosphere Presence of a reducing atmosphere TRUE ANSWER : ? YOUR ANSWER : ?
Nitrolime is Calcium ammonium nitrate A mixture of ammonium nitrate and calcium nitrate Calcium nitrate A mixture of nitric acid and lime TRUE ANSWER : ? YOUR ANSWER : ?
Potassic fertilisers None of these Help in development of starches of potatoes and grain Stimulate early growth and accelerate seeding Are useful during early stage of the plant growth TRUE ANSWER : ? YOUR ANSWER : ?