A. Nitrogenous fertilisers
B. Phosphatic fertilisers
C. Potassic fertiliser
D. None of these
Correct Answer: Potassic fertiliser ✔
Last Updated: March 11, 2019
Related MCQs
- 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__________?
- P2O5 percentage in the phosphoric acid produced by wet process is about__________?
- CO2 present in reformed gas (obtained by steam reforming of naphtha) is removed by absorbing in __________?
- The essential ingredient of all the synthesis gas is__________?
- Excessive use of chemical fertilisers causes shrivelling of the roots and wilting of the plant, because the__________?
- During conversion of ammonium carbamate into urea, presence of large excess of water__________?
- Coal based fertiliser plants at Ramagundam (Andhra Pradesh) and Talcher (Orissa) ?
- Temperature and pressure in urea autoclave is__________?
- __________ is the undesirable by-product produced in the manufacture of urea ?
- A Potassic fertiliser contains 50% K2O. It could be __________?
- Prilling of urea should be accomplished (in a sprayer) just above the melting point of urea with minimum of retention time, otherwise it will result in__________?
- Which nutrient in fertiliser makes the plant stems stronger and increases branching ?
- Conversion of yellow phosphorus to red phosphorous is done in retorts at 250-450°C in the __________?
- In natural gas, the C/H ratio (by weight) varies in the range of__________?
- CaH4(PO4)2 is the chemical formula of __________?
- C/H ratio (by weight) of naphtha used in nitrogenous fertiliser making is about__________?
- Temperature and pressure in ammonia converter is__________?
- Raw materials for urea production are __________?
- Formation of ammonium carbamate by reaction of NH3 with CO2 is a/an __________ reaction?