Oxidation of ammonia is________________?
A. Exothermic
B. Endothermic
C. Non-catalytic
D. Autocatalytic
Fertilizer Technology
In the manufacture of H3 PO4 (ortho); strong H2 SO4 leaching wet process as compared to electric furnace process___________________?
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 plant
C. Produces lower purity acid
D. Is very costly
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___________________?
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 smell
B. Vaporises at normal temperature
C. Is toxic and highly corrosive
D. Is in short supply
pH value of soil is maintained at ______________ by the addition of fertiliser for optimum growth and health of the plant?
pH value of soil is maintained at ______________ by the addition of fertiliser for optimum growth and health of the plant?
A. 4-5
B. 7-8
C. 9-10
D. 12-13
Which of the following fertilisers contains the least percentage of nitrogen ?
Which of the following fertilisers contains the least percentage of nitrogen ?
A. Liquid ammonia
B. Urea
C. Ammonium phosphate
D. Ammonium sulphate
Heating a mixture of phosphate rock, coke and sand in an electric furnace produces___________________?
Heating a mixture of phosphate rock, coke and sand in an electric furnace produces___________________?
A. Phosphoric acid
B. Ammonium phosphate
C. Phosphorous
D. Superphosphate
Catalyst used in steam reforming of naphtha is ___________________?
Catalyst used in steam reforming of naphtha is ___________________?
A. Bauxite
B. Cobalt
C. Nickel oxide on alumina support
D. Chromium
Liquid ammonia and 60% nitric acid reaction (which produces ammonium nitrate) is___________________?
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?
Low grade coal is ______________ to produce ammonia synthesis gas?
A. Hydrogenated
B. Liquefied
C. Gasified
D. Dehydrogenated
Main constituent of phosphate rock is_____________________?
Main constituent of phosphate rock is_____________________?
A. Ammonium phosphate
B. Flour apatite
C. Calcium fluoride
D. Calcium phosphate