Pick out the wrong statement ?
Pick out the wrong statement ?
Pick out the correct statement?
Pick out the wrong statement?
Oxidation of ammonia is__________?
In the manufacture of H3 PO4 (ortho); strong H2 SO4 leaching wet process as compared to electric furnace process__________?
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__________?
pH value of soil is maintained at __________ by the addition of fertiliser for optimum growth and health of the plant?
Which of the following fertilisers contains the least percentage of nitrogen ?
Heating a mixture of phosphate rock, coke and sand in an electric furnace produces__________?
Catalyst used in steam reforming of naphtha is __________?
Liquid ammonia and 60% nitric acid reaction (which produces ammonium nitrate) is__________?
Low grade coal is __________ to produce ammonia synthesis gas?
Main constituent of phosphate rock is__________?
Gas based fertiliser plants use__________?
Chemical formula of meta-phosphoric acid is __________?
Which of the following is the costliest source of hydrogen needed for ammonia manufacture under Indian condition __________?
A nitrogenous fertiliser contains 20% N2. It could be__________?
Raw materials required for the production of CAN (Calcium ammonium nitrate) is NH3__________?
Leaching of phosphate rock by strong __________ acid produces phosphoric acid ?
Which of the following is not a mixed fertiliser ?
Flushing liquor used for cooling coke oven gas constitutes of __________?
Nitrogen content in ammonium sulphate (a fertiliser) is around __________ percent?
Dehydration of ammonium carbamate to yield urea is a/an __________ reaction?
Both white phosphorous as well as red phosphorous__________?
Which of the following fertilisers is required for the development of fibrous materials of the plants and of the sugar of vegetable & fruits ?
Prilling tower is found in the flowsheet for the manufacture of__________?
Heating of ortho-phosphoric acid to about 900°C, produces__________?
Ammonium nitrate (a fertiliser) is coated with limestone powder to __________?
Main component of bone ash is __________?
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 ?
Reaction of calcium Fluorapatite with sulphuric acid produces __________?
Ammonia synthesis gas is produced from fuel oil by __________?
Vetrocoke solution is__________?
In __________ converter for ammonia synthesis, the catalyst is arranged in the form of a single continuous bed?
Which of the following nitrogenous fertilisers has the highest percentage of nitrogen ?
Superphosphate is manufactured by reacting phosphate rock with__________?
In an ammonia plant, the purge off is essential to__________?
Ammonia synthesis gas is produced from natural gas by__________?
Chemical formula of biuret is__________?
Heating of ortho-phosphoric acid to 250°C produces__________?
Potassic fertilisers do not promote the development of __________?
The main constituent of rock phosphate is __________?
Base suspension fertiliser essentially contains__________?
Fertiliser value of a nitrogenous fertiliser is expressed in terms of its __________ content?
Though kinetics of ammonia synthesis dictates the use of low temperature for high equilibrium conversion, yet it is kept moderately high (550°C), because at low temperature__________?
Triple superphosphate which contains about 46% P2O5 is produced by the reaction of phosphate rock with ortho phosphoric acid of__________ percent concentration?
Vapor phase reaction of ammonia & nitric acid to produce ammonium nitrate is termed as the __________ process?
Triple superphosphate is chemically represented as__________?
Neutralisation of nitric acid with ammonia to produce ammonium nitrate is a/an __________ reaction?
Reaction of dilute sulphuric acid with phosphate rock produces __________?

Pick out the wrong statement?

A. Dehydration of ammonium carbamate to produce urea is endothermic
B. Direct use of liquid ammonia as a fertiliser for a tropical country like India is suitable
C. Gypsum (CaSO4. 2H2O) is obtained as a by-product in the wet process for manufacture of
ortho-phosphoric acid
D. Phosphate rock when reacted with dilute H2SO4 produces superphosphate

Correct Answer: Direct use of liquid ammonia as a fertiliser for a tropical country like India is suitable ✔

Last Updated: March 11, 2019