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pH value of soil is maintained at ______________ by the addition of fertiliser for optimum growth and health of the plant?
Related MCQs
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 __________?
Reaction of phosphate rock with 98% H2SO4 produces __________?
Ammonium phosphate is a __________ fertiliser?
Nitrolime is chemically known as__________?
H3PO4 is the chemical formula of __________ phosphoric acid?
Catalyst used in the oxidation of ammonia is __________?
Which fertiliser is made (using coke oven gas) in by products plant of an integrated steel plant ?
In the manufacture of urea, the intermediate chemical formed is__________?
Catalyst used in Haber’s process for ammonia production is__________?
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
Correct Answer:
7-8
✔
Last Updated:
March 11, 2019