New Fertilizer Technology MCQs – Up To Date Chemical Engineering MCQs
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Latest Chemical Engineering MCQs
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Latest Fertilizer Technology Mcqs
The most occurred mcqs of Fertilizer Technology in past papers. Past papers of Fertilizer Technology Mcqs. Past papers of Fertilizer Technology Mcqs . Mcqs are the necessary part of any competitive / job related exams. The Mcqs having specific numbers in any written test. It is therefore everyone have to learn / remember the related Fertilizer Technology Mcqs. The Important series of Fertilizer Technology Mcqs are given below:
P2O5 percentage in the phosphoric acid produced by wet process is about_________________?
A. 50
B. 30
C. 10
D. 70
Catalyst used in Haber’s process for ammonia production is_________________?
A. Reduced iron oxide
B. Vanadium pentoxide
C. Nickel
D. Silica gel
In the manufacture of urea, the intermediate chemical formed is__________________?
A. Ammonium carbonate
B. Ammonium carbamate
C. Biuret
D. None of these
Which fertiliser is made (using coke oven gas) in by products plant of an integrated steel plant ?
A. CAN
B. Urea
C. Ammonium sulphate
D. Superphosphate
Catalyst used in the oxidation of ammonia is ________________?
A. Cobalt-molybdenum
B. Platinum-rhodium
C. Platinum-beryllium
D. Platinum-molybdenum
H3PO4 is the chemical formula of ______________ phosphoric acid?
A. Meta
B. Ortho
C. Pyro
D. None of these
Nitrolime is chemically known as____________________?
A. Ammonium nitrate
B. Calcium nitrate
C. Calcium ammonium nitrate (CAN)
D. None of these
Ammonium phosphate is a _____________ fertiliser?
A. Phosphatic
B. Nitrogenous
C. Complex
D. Mixed
Reaction of phosphate rock with 98% H2SO4 produces ______________________?
A. Ortho-phosphoric acid
B. White phosphorous
C. Superphosphate
D. None of these
Reaction of dilute sulphuric acid with phosphate rock produces ____________________?
A. Phosphoric acid
B. Triple superphosphate
C. Superphosphate
D. Gypsum
Neutralisation of nitric acid with ammonia to produce ammonium nitrate is a/an _______________________ reaction?
A. Endothermic
B. Catalytic
C. Exothermic
D. Autocatalytic
Triple superphosphate is chemically represented as_____________________?
A. CaF2.3Ca3(PO4)2
B. Ca(PO3)2
C. 3Ca3(PO4)2
D. Ca(H2PO4)2
Vapor phase reaction of ammonia & nitric acid to produce ammonium nitrate is termed as the _______________ process?
A. Le-chatelier’s
B. Stengel
C. Haber’s
D. Du-pont’s
Triple superphosphate which contains about 46% P2O5 is produced by the reaction of phosphate rock with ortho phosphoric acid of_____________ percent concentration?
A. 75-80
B. 52-54
C. 25-28
D. > 98
Fuels And Combustion Mcqs
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___________________?
A. Rate of reaction is very low
B. Space velocity of gas is very low resulting in decreased conversion
C. Very high pressure is required resulting in costly pressure vessel
D. None of these
Fertiliser value of a nitrogenous fertiliser is expressed in terms of its ______________ content?
A. N2
B. NO2
C. KNO3
D. NHO3
Base suspension fertiliser essentially contains___________________?
A. 13% N2 and 43% P2O5
B. 43% N2 and 13% K2O
C. 43% N2 and 13% P2O5
D. 43% K2O and 43% P2O5
The main constituent of rock phosphate is _____________________?
A. Fluorspar
B. Di-calcium phosphate
C. Mono-calcium phosphate
D. None of these
Potassic fertilisers do not promote the development of ______________________?
A. Stems & leaves during early stage of plant growth
B. Sugar of fruits & vegetables
C. Starches of potatoes & grains
D. Fibrous materials of plants
Heating of ortho-phosphoric acid to 250°C produces___________________?
A. No change in it
B. Pyrophosphoric acid
C. Meta-phosphoric acid
D. None of these
Chemical formula of biuret is_________________?
A. NH3.COO.NH3
B. NH2.CO.NH2
C. NH2CONHCONH2
D. NH4COONH2
Ammonia synthesis gas is produced from natural gas by___________________?
A. Partial oxidation
B. Steam reforming
C. Thermal cracking
D. Hydrogenation
In an ammonia plant, the purge off is essential to___________________?
A. Remove excess poisonous gases
B. Maintain inert gas concentration within a limit
C. Maintain H2 : N2 ratio at 3 :1
D. Remove uncondensed ammonia vapour
Superphosphate is manufactured by reacting phosphate rock with_____________________?
A. Aluminium chloride
B. Sulphuric acid
C. Acetic acid
D. None of these
Which of the following nitrogenous fertilisers has the highest percentage of nitrogen ?
A. Ammonium sulphate
B. Calcium ammonium nitrate (CAN)
C. Urea
D. Calcium nitrate
In _____________ converter for ammonia synthesis, the catalyst is arranged in the form of a single continuous bed?
A. Uhde
B. Claude
C. Fauser-Montecatini
D. Kellogg
Vetrocoke solution is_________________?
A. A mixture of K2CO3 and As2O3
B. Na2SO4
C. A mixture of Na2CO3 and As2O3
D. K2SO4
Ammonia synthesis gas is produced from fuel oil by _________________?
A. Hydro-cracking
B. Steam reforming
C. Partial oxidation
D. Hydrogenation
Reaction of calcium Fluorapatite with sulphuric acid produces ___________________?
A. Triple superphosphate
B. Simple superphosphate
C. Ortho-phosphoric acid
D. Red phosphorous
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 ?
A. Toluene
B. Butyl alcohol
C. Isopropyl alcohol
D. Hexane
Main component of bone ash is _________________?
A. Calcium carbonate
B. Calcium phosphate
C. Calcium sulphate
D. Sodium phosphate
Ammonium nitrate (a fertiliser) is coated with limestone powder to ____________________?
A. Cut down its production cost
B. Increase its nitrogen content
C. Avoid the risk of explosion
D. Add extra nutrient as fertiliser
Chemical Process Mcqs
Heating of ortho-phosphoric acid to about 900°C, produces_________________?
A. Meta-phosphoric acid
B. No change in it
C. Pyrophosphoric acid
D. None of these
Prilling tower is found in the flowsheet for the manufacture of__________________?
A. Superphosphate
B. Urea
C. Ammonia
D. Triple superphosphate
Which of the following fertilisers is required for the development of fibrous materials of the plants and of the sugar of vegetable & fruits ?
A. Phosphatic fertilisers
B. Nitrogenous fertilisers
C. Potassic fertiliser
D. None of these
Both white phosphorous as well as red phosphorous_________________?
A. Reacts with hot caustic soda solution to give Phosphine
B. Burns when heated in air
C. Are soluble in CS2
D. All A., B., and C.
Dehydration of ammonium carbamate to yield urea is a/an __________________ reaction?
A. Autocatalytic
B. Endothermic
C. Exothermic
D. Catalytic
Nitrogen content in ammonium sulphate (a fertiliser) is around ______________ percent?
A. 50
B. 20
C. 5
D. 65
Flushing liquor used for cooling coke oven gas constitutes of __________________?
A. Ammoniacal liquor
B. Dilute H2SO4
C. K2CO3 solution
D. Dilute HCl
Which of the following is not a mixed fertiliser ?
A. Ammonium phosphate
B. Calcium ammonium nitrate (CAN)
C. Nitrophosphate
D. None of these
Leaching of phosphate rock by strong ____________ acid produces phosphoric acid ?
A. Hydrochloric
B. Sulphuric
C. Either A. or B.
D. Neither A. nor B.
Raw materials required for the production of CAN (Calcium ammonium nitrate) is NH3__________________?
A. HNO3 & limestone
B. HNO3 & NH4Cl
C. CO2 & H2SO4
D. CO2 & KNO3
A nitrogenous fertiliser contains 20% N2. It could be_________________?
A. Urea
B. Calcium ammonium nitrate (CAN)
C. Ammonium nitrate
D. Ammonium chloride
Which of the following is the costliest source of hydrogen needed for ammonia manufacture under Indian condition _______________?
A. Electrolysis of water
B. Cryogenic removal of H2 from coke oven gas
C. Natural gas cracking
D. Steam reforming of naphtha
Chemical formula of meta-phosphoric acid is ___________________?
A. H4P2O7
B. H3PO4
C. HPO3
D. Same as that of Pyrophosphoric acid
Gas based fertiliser plants use_________________?
A. Natural gas as a source of hydrogen
B. Coal gas as a source of hydrogen
C. Natural gas as heating medium
D. Coal gas as heating medium
Main constituent of phosphate rock is_____________________?
A. Calcium fluoride
B. Flour apatite
C. Ammonium phosphate
D. Calcium phosphate
Low grade coal is ______________ to produce ammonia synthesis gas?
A. Liquefied
B. Hydrogenated
C. Gasified
D. Dehydrogenated
Liquid ammonia and 60% nitric acid reaction (which produces ammonium nitrate) is___________________?
A. Exothermic
B. Autocatalytic
C. Endothermic
D. None of these
Catalyst used in steam reforming of naphtha is ___________________?
A. Cobalt
B. Bauxite
C. Nickel oxide on alumina support
D. Chromium
Heating a mixture of phosphate rock, coke and sand in an electric furnace produces___________________?
A. Ammonium phosphate
B. Phosphoric acid
C. Phosphorous
D. Superphosphate
Which of the following fertilisers contains the least percentage of nitrogen ?
A. Urea
B. Liquid ammonia
C. Ammonium phosphate
D. Ammonium sulphate
pH value of soil is maintained at ______________ by the addition of fertiliser for optimum growth and health of the plant?
A. 9-10
B. 7-8
C. 4-5
D. 12-13
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. Is toxic and highly corrosive
B. Vaporises at normal temperature
C. Has a pungent smell
D. Is in short supply
In the manufacture of H3 PO4 (ortho); strong H2 SO4 leaching wet process as compared to electric furnace process___________________?
A. Is very costly
B. Requires lower capital investment in the plant
C. Produces lower purity acid
D. Uses lower grade phosphate rock
Oxidation of ammonia is________________?
A. Exothermic
B. Non-catalytic
C. Endothermic
D. Autocatalytic
Pick out the wrong statement?
A. All the nitrogenous fertilisers are not soluble in water
B. Calcium cyanamide is used as weed killer in onion fields
C. A straight fertiliser contains only one nutrient
D. The phosphorous nutrient makes the plant stem stronger and increases its branches
Pick out the correct statement?
A. Biuret (an intermediate during urea manufacture) is toxic to seeds and animals
B. With increase in NH3/CO2 ratio, urea yield decreases for a given temperature, pressure and total feed rate
C. Reaction of NH3 with HNO3 to produce (NH4)2NO3 is endothermic
D. Both B. and C.
Pick out the wrong statement ?
A. Chemically unreactive nature of red phosphorous is due to its polymeric structure
B. ‘Green acid’ is the other name of phosphoric acid produced by the reaction of phosphate rock & sulphuric acid
C. Red phosphorous is the most reactive allotropic form of phosphorous
D. Red phosphorous, which is used in the manufacture of safety matches, is converted into white phosphorous by vaporisation followed by condensation
Fertilizer Technology Mcqs
Pick out the wrong statement ?
A. Particle size range of a good granular fertiliser is 10-15 mesh and it contains less moisture ascompared to finely divided powder form of fertiliser
B. Calcium present in the fertiliser helps in correcting the soil acidity
C. Nitrogen is normally supplied in fertiliser either in Ammoniacal or the nitrate form, fromwhich the soil takes it up in the form of ammonium ions or nitrate ions and forms amino acids
D. Ammonium nitrate fertiliser is obtained as a by-product in an integrated steel plant having byproductcoke ovens
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. Phosphate rock when reacted with dilute H2SO4 produces superphosphate
D. Gypsum (CaSO4. 2H2O) is obtained as a by-product in the wet process for manufacture of ortho-phosphoric acid
Pick out the wrong statement?
A. Apatite is the principal material present in phosphate rock which is chemically Ca10 (PO4)6 (F, Cl, OH)
B. Yellow phosphorous which is the most reactive allotropic form of phosphorous is transported under water
C. Urea is more hygroscopic than ammonium nitrate
D. Nitrogen fixation means the process of bringing atmospheric nitrogen into combination i.e. into nitrogen compound form
Pick out the wrong statement?
A. Large excess use of nitrogenous fertiliser in land causes the problem of diarrhoea and cyanosis
B. Loamy soil is the best soil for vigorous plant growth, while the clayey soil is solid and hence the plant roots penetrate with difficulty
C. Application of large excess of Potassic fertiliser in soil increases the valuable carotene in fruits and vegetables
D. Cereal crops grown on alkaline soil absorb higher amount of fluorides thereby spreading fluorosis