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 __________?
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?

Pick out the wrong statement?

A. All the nitrogenous fertilisers are not soluble in water
B. A straight fertiliser contains only one nutrient
C. Calcium cyanamide is used as weed killer in onion fields
D. The phosphorous nutrient makes the plant stem stronger and increases its branches

Correct Answer: All the nitrogenous fertilisers are not soluble in water ✔

Last Updated: March 11, 2019