Oxidation of ammonia is________________?
Oxidation of ammonia is________________? A. Exothermic B. Endothermic C. Non-catalytic D. Autocatalytic
Oxidation of ammonia is________________? A. Exothermic B. Endothermic C. Non-catalytic D. Autocatalytic
In the manufacture of H3 PO4 (ortho); strong H2 SO4 leaching wet process as compared to electric furnace process___________________? A. Uses lower grade phosphate rock B. Requires lower capital investment in the plantC. Produces lower purity acid D. Is very…
Though liquid ammonia itself is a fertiliser (with 82% nitrogen content) yet it is commonly not used as such in a tropical country like India, because it___________________? A. Has a pungent smellB. Vaporises at normal temperature C. Is toxic and…
pH value of soil is maintained at ______________ by the addition of fertiliser for optimum growth and health of the plant? A. 4-5B. 7-8 C. 9-10 D. 12-13
Which of the following fertilisers contains the least percentage of nitrogen ? A. Liquid ammonia B. UreaC. Ammonium phosphate D. Ammonium sulphate
Heating a mixture of phosphate rock, coke and sand in an electric furnace produces___________________? A. Phosphoric acid B. Ammonium phosphateC. Phosphorous D. Superphosphate
Catalyst used in steam reforming of naphtha is ___________________? A. Bauxite B. CobaltC. Nickel oxide on alumina support D. Chromium
Liquid ammonia and 60% nitric acid reaction (which produces ammonium nitrate) is___________________? A. Exothermic B. Endothermic C. Autocatalytic D. None of these
Low grade coal is ______________ to produce ammonia synthesis gas? A. Hydrogenated B. LiquefiedC. Gasified D. Dehydrogenated
Main constituent of phosphate rock is_____________________? A. Ammonium phosphateB. Flour apatite C. Calcium fluoride D. Calcium phosphate