The optimum size of the ammonia plant is __________ tons/day.
The optimum size of the ammonia plant is __________ tons/day.
Conversion of yellow phosphorous to red phosphorous is done by heating it in covered retorts at __________ °C in absence of air.
Conversion of yellow phosphorous to red phosphorous is done by heating it in covered retorts at __________ °C in absence of air.
Reaction of orthophosphoric acid with phosphate rock produces
Reaction of orthophosphoric acid with phosphate rock produces
With increases in pressure, the conversion of ammonium carbamate into urea
With increases in pressure, the conversion of ammonium carbamate into urea
Pick out the wrong statement.
Pick out the wrong statement.
Coal based fertiliser plants at Ramagundam (Andhra Pradesh) and Talchar (Orissa)
Coal based fertiliser plants at Ramagundam (Andhra Pradesh) and Talchar (Orissa)
Catalyst used in steam reforming of naphtha is
Catalyst used in steam reforming of naphtha is
Ammonia synthesis reaction is
Ammonia synthesis reaction is
Nitrogen content of a nitrogenous fertiliser is 35%. It could be
Nitrogen content of a nitrogenous fertiliser is 35%. It could be
Which of the following nitrogenous fertilisers has the highest percentage of nitrogen?
Which of the following nitrogenous fertilisers has the highest percentage of nitrogen?
Leaching of phosphate rock by strong __________ acid produces phosphoric acid.
Leaching of phosphate rock by strong __________ acid produces phosphoric acid.
CaH₄(PO₄)₂ is the chemical formula of
CaH₄(PO₄)₂ is the chemical formula of
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
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
Ammonium nitrate is
Ammonium nitrate is
Fauser Monte Catini converter is used for
Fauser Monte Catini converter is used for
Electric process as compared to wet process (for the manufacture of phosphoric acid)
Electric process as compared to wet process (for the manufacture of phosphoric acid)
Optimum reaction temperature in steam reforming of naphtha is __________ °C.
Optimum reaction temperature in steam reforming of naphtha is __________ °C.
Formation of ammonium carbamate by reaction of NH₃ with CO₂ is a/an __________ reaction.
Formation of ammonium carbamate by reaction of NH₃ with CO₂ is a/an __________ reaction.
Which of the following set of conditions is favourable for the maximum yield of ammonia by Haber's process?
Which of the following set of conditions is favourable for the maximum yield of ammonia by Haber's process?
Which is the best fertiliser for paddy?
Which is the best fertiliser for paddy?
P₂O₅ content in superphosphate is about __________ percent.
P₂O₅ content in superphosphate is about __________ percent.
NPK fertiliser is a __________ fertiliser.
NPK fertiliser is a __________ fertiliser.
Action of phosphoric acid on rock phosphate produces
Action of phosphoric acid on rock phosphate produces
Temperature and pressure in urea autoclave is
Temperature and pressure in urea autoclave is
Catalyst used in desulphurisation of naphtha is
Catalyst used in desulphurisation of naphtha is
Calcium ammonium nitrate (CAN) is
Calcium ammonium nitrate (CAN) is
Electric furnace method for production of phosphorous uses phosphate rock
Electric furnace method for production of phosphorous uses phosphate rock
Nitrogen content of calcium ammonium nitrate (CAN) is __________ percent.
Nitrogen content of calcium ammonium nitrate (CAN) is __________ percent.
Liquid ammonia is not used as such a fertiliser in tropical countries like India, because
Liquid ammonia is not used as such a fertiliser in tropical countries like India, because
Reaction of nitric acid and sulphuric acid with phosphate rock produces
Reaction of nitric acid and sulphuric acid with phosphate rock produces
Fertiliser plants get their N₂ requirements
Fertiliser plants get their N₂ requirements
Commercial production of hydrogen for the manufacture of nitrogeneous fertilisers is done by
Commercial production of hydrogen for the manufacture of nitrogeneous fertilisers is done by
Dehydration of ammonium carbamate to yield urea is a/an __________ reaction.
Dehydration of ammonium carbamate to yield urea is a/an __________ reaction.
Lower temperature and large excess of ammonia in urea melt
Lower temperature and large excess of ammonia in urea melt
Urea is a __________ fertiliser.
Urea is a __________ fertiliser.
Reaction of orthophosphoric acid with soda ash produces
Reaction of orthophosphoric acid with soda ash produces
Pick out the wrong statement.
Pick out the wrong statement.
Catalyst used in Haber's process for ammonia production is
Catalyst used in Haber's process for ammonia production is
Urea is a better fertilizer than ammonium sulphate, because
Urea is a better fertilizer than ammonium sulphate, because
Heating of orthophosphoric acid to about 900°C, produces
Heating of orthophosphoric acid to about 900°C, produces
Which of the following is the costliest source of hydrogen needed for ammonia manufacture under Indian condition?
Which of the following is the costliest source of hydrogen needed for ammonia manufacture under Indian condition?
Which of the following is the costliest method for commercial production of hydrogen for ammonia synthesis?
Which of the following is the costliest method for commercial production of hydrogen for ammonia synthesis?
Nitrogen content in ammonium sulphate (a fertiliser) is around __________ percent.
Nitrogen content in ammonium sulphate (a fertiliser) is around __________ percent.
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
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
Dehydration of ammonium carbamate (to produce urea) is a/an __________ reaction.
Dehydration of ammonium carbamate (to produce urea) is a/an __________ reaction.
Conversion achieved in HNO₃ synthesis with the use of platinum catalyst is about 95-97%. The rate of formation of nitrogen dioxide from the oxidation of nitric acid is favoured by
Conversion achieved in HNO₃ synthesis with the use of platinum catalyst is about 95-97%. The rate of formation of nitrogen dioxide from the oxidation of nitric acid is favoured by
__________ is not a fertiliser.
__________ is not a fertiliser.
A potassic fertiliser contains 50% K₂O. It could be
A potassic fertiliser contains 50% K₂O. It could be
Flushing liquor used for cooling coke oven gas constitutes of
Flushing liquor used for cooling coke oven gas constitutes of
In the manufacture of H₃ PO₄ (ortho), ; strong H₂ SO₄ leaching wet process as compared to electric furnace process
In the manufacture of H₃ PO₄ (ortho), ; strong H₂ SO₄ leaching wet process as compared to electric furnace process
Which of the following gasifiers can be attached to coal based fertiliser plants?
Which of the following gasifiers can be attached to coal based fertiliser plants?
Reaction of phosphate rock with 98% H₂SO₄ produces
Reaction of phosphate rock with 98% H₂SO₄ produces
CO₂ present in reformed gas (obtained by steam reforming of naphtha) is removed by absorbing in
CO₂ present in reformed gas (obtained by steam reforming of naphtha) is removed by absorbing in
I argest capacity nitrogenous fertiliser plants (2700 tons of NH₃ per day) (2 Nos) in India are located at
I argest capacity nitrogenous fertiliser plants (2700 tons of NH₃ per day) (2 Nos) in India are located at
Reaction of cresylic acid with __________ produces tricresyl phosphate.
Reaction of cresylic acid with __________ produces tricresyl phosphate.
Which of the following fertilisers contains the least percentage of nitrogen?
Which of the following fertilisers contains the least percentage of nitrogen?
Liquid ammonia and 60% nitric acid reaction (which produces ammonium nitrate) is
Liquid ammonia and 60% nitric acid reaction (which produces ammonium nitrate) is
Catalyst used in the manufacture of NH₃ by Haber's process is finely divided
Catalyst used in the manufacture of NH₃ by Haber's process is finely divided
Which of the following fertilisers is required for the development of fibrous materials of the plants and of the sugar of vegetable & fruits?
Which of the following fertilisers is required for the development of fibrous materials of the plants and of the sugar of vegetable & fruits?
Tricresyl phosphate is chemically represented as
Tricresyl phosphate is chemically represented as
Promoter used in NH₃ synthesis catalyst is
Promoter used in NH₃ synthesis catalyst is
Steam reforming of naphtha is a source of hydrogen production for nitrogeneous fertiliser industry. What is the usual ratio of steam to carbon maintained in the process of steam reforming of naphtha?
Steam reforming of naphtha is a source of hydrogen production for nitrogeneous fertiliser industry. What is the usual ratio of steam to carbon maintained in the process of steam reforming of naphtha?
Raw materials for urea production are
Raw materials for urea production are
The composition of fresh feed to the high temperature, high pressure urea autoclave is
The composition of fresh feed to the high temperature, high pressure urea autoclave is
Chemical formula of biuret is
Chemical formula of biuret is
Reaction of anhydrous liquid ammonia with orthophosphoric acid produces
Reaction of anhydrous liquid ammonia with orthophosphoric acid produces
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
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
Ammonium nitrate (is mixed with limestone) is not used as fertiliser as such, because
Ammonium nitrate (is mixed with limestone) is not used as fertiliser as such, because
Which is a catalyst promoter used in catalytic ammonia synthesis reaction?
Which is a catalyst promoter used in catalytic ammonia synthesis reaction?
Fertiliser plant making ammonium sulphate employing gypsum-ammonia reaction (usual practice is to use ammonia and sulphuric acid) is located at
Fertiliser plant making ammonium sulphate employing gypsum-ammonia reaction (usual practice is to use ammonia and sulphuric acid) is located at
Reaction of calcium fluorapatite with sulphuric acid produces
Reaction of calcium fluorapatite with sulphuric acid produces
__________ is the undesirable by-product produced in the manufacture of urea.
__________ is the undesirable by-product produced in the manufacture of urea.
Which of the following fertilisers is needed for promoting the development of leaves and stems during early stages of plant growth?
Which of the following fertilisers is needed for promoting the development of leaves and stems during early stages of plant growth?
Yield of elemental phosphorous from rock phosphate is about __________ percent.
Yield of elemental phosphorous from rock phosphate is about __________ percent.
In ammonia synthesis (N₂ + 3H₂ = 2NH₃), there is a decrease in total volume, hence to get high equilibrium conversion, the reaction should be carried out at
In ammonia synthesis (N₂ + 3H₂ = 2NH₃), there is a decrease in total volume, hence to get high equilibrium conversion, the reaction should be carried out at
Catalyst used in steam reforming of naphtha is
Catalyst used in steam reforming of naphtha is
A phosphatic fertiliser contains 16% P₂O₅. It could be
A phosphatic fertiliser contains 16% P₂O₅. It could be
Color of nitric acid is light yellow due to the presence of
Color of nitric acid is light yellow due to the presence of
In an ammonia plant, the purge off is essential to
In an ammonia plant, the purge off is essential to
Temperature and pressure in ammonia converter is
Temperature and pressure in ammonia converter is
Nitrogen content of urea is about __________ percent.
Nitrogen content of urea is about __________ percent.
Catalytic ammonia synthesis reaction as in Haber's process is
Catalytic ammonia synthesis reaction as in Haber's process is
Which of the following is not a measure component necessarily to be present in fertilisers?
Which of the following is not a measure component necessarily to be present in fertilisers?
Iron is not used alone as a catalyst in ammonia synthesis, because
Iron is not used alone as a catalyst in ammonia synthesis, because
Neutralisation of nitric acid with ammonia to produce ammonium nitrate is a/an __________ reaction.
Neutralisation of nitric acid with ammonia to produce ammonium nitrate is a/an __________ reaction.
Sodium tri poly phosphate (STPP) is chemically represented as
Sodium tri poly phosphate (STPP) is chemically represented as
Gas based fertiliser plants use
Gas based fertiliser plants use
Conditioners like finely divided peat are added to the fertiliser to
Conditioners like finely divided peat are added to the fertiliser to
Triple superphosphate is chemically represented as
Triple superphosphate is chemically represented as
P₂O₅ content in triple superphosphate is about __________ percent.
P₂O₅ content in triple superphosphate is about __________ percent.
Base suspension fertiliser essentially contains
Base suspension fertiliser essentially contains
Yield of urea can be increased with excess ammonia and higher pressure & temperature, but because of __________ this is normally not done.
Yield of urea can be increased with excess ammonia and higher pressure & temperature, but because of __________ this is normally not done.
Pick out the wrong statement.
Pick out the wrong statement.
Pick out the correct statement.
Pick out the correct statement.
Multistage operation (as in the case of catalytic oxidation of SO₂) is not carried out for NH₃ synthesis, because of
Multistage operation (as in the case of catalytic oxidation of SO₂) is not carried out for NH₃ synthesis, because of
Which one of the following is used as a nitrogenous fertiliser, as a weed killer in the onion fields and for correcting acidic soils?
Which one of the following is used as a nitrogenous fertiliser, as a weed killer in the onion fields and for correcting acidic soils?
Triple superphosphate is made by reacting phosphate rock with __________ acid.
Triple superphosphate is made by reacting phosphate rock with __________ acid.
Triple superphosphate which contains about 46% P₂O₅ is produced by the reaction of phosphate rock with ortho phosphoric acid of____percent concentration.
Triple superphosphate which contains about 46% P₂O₅ is produced by the reaction of phosphate rock with ortho phosphoric acid of____percent concentration.
Rock phosphate constitutes mainly of
Rock phosphate constitutes mainly of
Reaction of dilute sulphuric acid with phosphate rock produces
Reaction of dilute sulphuric acid with phosphate rock produces
