Raw materials required for the production of CAN (Calcium ammonium nitrate) is NH‚Äö√á√â%!

CO‚Äö√á√á & H‚Äö√á√áSO‚Äö√á√ë

HNO‚Äö√á√â & limestone

CO‚Äö√á√á & H‚Äö√á√áSO‚Äö√á√ë

HNO‚Äö√á√â & NH‚Äö√á√ëCl

CO‚Äö√á√á & KNO‚Äö√á√â

Multistage operation (as in the case of catalytic oxidation of SO‚Äö√á√á) is not carried out for NH‚Äö√á√â synthesis, because of%!

Comparatively higher pressure drop

High cost of the high pressure vessel used for the reactor

Chances of entrainment and disturbance of catalyst bed

Sodium tri poly phosphate (STPP) is chemically represented as%!

Na‚Äö√á√ëP3O‚Äö√á√

Na‚Äö√á√ñP3O‚Äö√á√Ö‚Äö√á√Ñ

Na‚Äö√á√ëP3O‚Äö√á√

Na‚Äö√á√âP4O‚Äö√á√ú

Na‚Äö√á√áPO‚Äö√á√ë

I argest capacity nitrogenous fertiliser plants (2700 tons of NH‚Äö√á√â per day) (2 Nos) in India are located at%!

Talchar (Orissa) and Ramagundam (A.P.) both under FCI

Thal-Vaishet (under RCF in Maharashtra) and Hazira (under IFFCO in Gujarat)

Talchar (Orissa) and Ramagundam (A.P.) both under FCI

Korba (M.P.) and Talchar (Orissa) both under FCI

Haldia (W.B) and Namrup (Assam) both under HFC

Though kinetics of ammonia synthesis dictates the use of low temperature for high equilibrium conversion, yet it is kept moderately high (550¬¨‚àûC), because at low temperature%!

Very high pressure is required resulting in costly pressure vessel

Space velocity of gas is very low resulting in decreased conversion

Which of the following is the costliest source of hydrogen needed for ammonia manufacture under Indian condition?%!

Cryogenic removal of H‚Äö√á√á from coke oven gas

Tricresyl phosphate is chemically represented as%!

Ca‚Äö√á√Ö‚Äö√á√Ñ(PO‚Äö√á√ë)3F‚Äö√á√ú

(CH‚Äö√á√â C‚Äö√á√ú H‚Äö√á√ë)‚Äö√á√â PO‚Äö√á√ë

Ca‚Äö√á√Ö‚Äö√á√Ñ(PO‚Äö√á√ë)3F‚Äö√á√ú

(NH‚Äö√á√ë)‚Äö√á√áHPO‚Äö√á√ë

NH‚Äö√á√ëH‚Äö√á√áPO‚Äö√á√ë

*$_Nitrogenous fertiliser is required?

For accelerating fruit formation in later stage of growth

During the early stage of growth to promote development of stem and leaves

For accelerating fruit formation in later stage of growth

To lessen the effect of excessive potash application

*$_Though kinetics of ammonia synthesis dictates the use of low temperature for high equilibrium conversion, yet it is kept moderately high (550¬¨‚àûC), because at low temperature?

Very high pressure is required resulting in costly pressure vessel

Space velocity of gas is very low resulting in decreased conversion

*$_Sodium tri poly phosphate (STPP) is chemically represented as?

Na‚Äö√á√ëP3O‚Äö√á√

Na‚Äö√á√ñP3O‚Äö√á√Ö‚Äö√á√Ñ

Na‚Äö√á√ëP3O‚Äö√á√

Na‚Äö√á√âP4O‚Äö√á√ú

Na‚Äö√á√áPO‚Äö√á√ë

*$_I argest capacity nitrogenous fertiliser plants (2700 tons of NH‚Äö√á√â per day) (2 Nos) in India are located at?

Talchar (Orissa) and Ramagundam (A.P.) both under FCI

Thal-Vaishet (under RCF in Maharashtra) and Hazira (under IFFCO in Gujarat)

Talchar (Orissa) and Ramagundam (A.P.) both under FCI

Korba (M.P.) and Talchar (Orissa) both under FCI

Haldia (W.B) and Namrup (Assam) both under HFC

*$_Vetrocoke solution is?

K‚Äö√á√áSO‚Äö√á√ë

A mixture of K‚Äö√á√áCO‚Äö√á√â and As‚Äö√á√áO‚Äö√á√â

K‚Äö√á√áSO‚Äö√á√ë

A mixture of Na‚Äö√á√áCO‚Äö√á√â and As‚Äö√á√áO‚Äö√á√â

Na‚Äö√á√áSO‚Äö√á√ë

*$_Which of the following is the costliest source of hydrogen needed for ammonia manufacture under Indian condition??

Cryogenic removal of H‚Äö√á√á from coke oven gas

*$_Tricresyl phosphate is chemically represented as?

Ca‚Äö√á√Ö‚Äö√á√Ñ(PO‚Äö√á√ë)3F‚Äö√á√ú

(CH‚Äö√á√â C‚Äö√á√ú H‚Äö√á√ë)‚Äö√á√â PO‚Äö√á√ë

Ca‚Äö√á√Ö‚Äö√á√Ñ(PO‚Äö√á√ë)3F‚Äö√á√ú

(NH‚Äö√á√ë)‚Äö√á√áHPO‚Äö√á√ë

NH‚Äö√á√ëH‚Äö√á√áPO‚Äö√á√ë

*/*_Multistage operation (as in the case of catalytic oxidation of SO‚Äö√á√á) is not carried out for NH‚Äö√á√â synthesis, because of?

Comparatively higher pressure drop

High cost of the high pressure vessel used for the reactor

Chances of entrainment and disturbance of catalyst bed

212 + Mcqs in Fertiliser Technology in Chemical Engineering Page 1 McqOptions

1.	Nitro-phosphate (manufactured at Trom-bay) is a __________ fertiliser.%!
A.	Mixed
B.	Complex
C.	Highly hygroscopic
D.	Highly explosive
Answer» C. Highly hygroscopic

Discussion

2.	Superphosphate is manufactured by reacting phosphate rock with%!
A.	Acetic acid
B.	Sulphuric acid
C.	Aluminium chloride
D.	None of these
Answer» C. Aluminium chloride

Discussion

3.	Out of the following, N‚Äö√á√á content is minimum in%!
A.	Urea
B.	Ammonium nitrate
C.	Ammonium sulphate
D.	Ammonium chloride
Answer» D. Ammonium chloride

Discussion

4.	In natural gas, the C/H ratio (by weight) varies in the range of%!
A.	3-4
B.	8-10
C.	15-17
D.	20-25
Answer» B. 8-10

Discussion

5.	NPK means a __________ fertiliser.%!
A.	Mixed
B.	Potassic
C.	Liquid
D.	Solid
Answer» B. Potassic

Discussion

6.	Main component of bone ash is%!
A.	Calcium sulphate
B.	Calcium phosphate
C.	Calcium carbonate
D.	Sodium phosphate
Answer» C. Calcium carbonate

Discussion

7.	Fertilizer plant getting its hydrogen requirement partly from coke oven gas is situated at%!
A.	Rourkela (under SAIL)
B.	Barauni (under HFC)
C.	Nangal (under NFL)
D.	Talchar (under FCI)
Answer» B. Barauni (under HFC)

Discussion

8.	Raw materials required for the production of CAN (Calcium ammonium nitrate) is NH‚Äö√á√â%!
A.	HNO‚Äö√á√â & limestone
B.	CO‚Äö√á√á & H‚Äö√á√áSO‚Äö√á√ë
C.	HNO‚Äö√á√â & NH‚Äö√á√ëCl
D.	CO‚Äö√á√á & KNO‚Äö√á√â
Answer» B. CO‚Äö√á√á & H‚Äö√á√áSO‚Äö√á√ë

Discussion

9.	Multistage operation (as in the case of catalytic oxidation of SO‚Äö√á√á) is not carried out for NH‚Äö√á√â synthesis, because of%!
A.	Comparatively higher pressure drop
B.	High cost of the high pressure vessel used for the reactor
C.	Higher pumping cost
D.	Chances of entrainment and disturbance of catalyst bed
Answer» C. Higher pumping cost

Discussion

10.	Liquid ammonia and 60% nitric acid reaction (which produces ammonium nitrate) is%!
A.	Exothermic
B.	Endothermic
C.	Autocatalytic
D.	None of these
Answer» B. Endothermic

Discussion

11.	Fertiliser plant making ammonium sulphate employing gypsum-ammonia reaction (usual practice is to use ammonia and sulphuric acid) is located at%!
A.	Rourkela (under SAIL)
B.	Bokaro (under SAIL)
C.	Sindri (under FCI)
D.	Baroda (under G.S.F.C.)
Answer» D. Baroda (under G.S.F.C.)

Discussion

12.	Sodium tri poly phosphate (STPP) is chemically represented as%!
A.	Na‚Äö√á√ñP3O‚Äö√á√Ö‚Äö√á√Ñ
B.	Na‚Äö√á√ëP3O‚Äö√á√
C.	Na‚Äö√á√âP4O‚Äö√á√ú
D.	Na‚Äö√á√áPO‚Äö√á√ë
Answer» B. Na‚Äö√á√ëP3O‚Äö√á√

Discussion

13.	I argest capacity nitrogenous fertiliser plants (2700 tons of NH‚Äö√á√â per day) (2 Nos) in India are located at%!
A.	Thal-Vaishet (under RCF in Maharashtra) and Hazira (under IFFCO in Gujarat)
B.	Talchar (Orissa) and Ramagundam (A.P.) both under FCI
C.	Korba (M.P.) and Talchar (Orissa) both under FCI
D.	Haldia (W.B) and Namrup (Assam) both under HFC
Answer» B. Talchar (Orissa) and Ramagundam (A.P.) both under FCI

Discussion

14.	Reaction of anhydrous liquid ammonia with orthophosphoric acid produces%!
A.	Ammonium phosphate
B.	Superphosphate
C.	Triple superphosphate
D.	None of these
Answer» B. Superphosphate

Discussion

15.	Leaching of phosphate rock by strong __________ acid produces phosphoric acid.%!
A.	Sulphuric
B.	Hydrochloric
C.	Either A or B
D.	Neither A nor B
Answer» D. Neither A nor B

Discussion

16.	Conditioners like finely divided peat are added to the fertiliser to%!
A.	Counteract burning
B.	Avoid caking & hardening
C.	Produce bulk
D.	Increase its solubility
Answer» C. Produce bulk

Discussion

17.	Though kinetics of ammonia synthesis dictates the use of low temperature for high equilibrium conversion, yet it is kept moderately high (550¬¨‚àûC), because at low temperature%!
A.	Rate of reaction is very low
B.	Very high pressure is required resulting in costly pressure vessel
C.	Space velocity of gas is very low resulting in decreased conversion
D.	None of these
Answer» B. Very high pressure is required resulting in costly pressure vessel

Discussion

18.	Which of the following gasifiers can be attached to coal based fertiliser plants?%!
A.	Lurgi (high pressure) gasifier
B.	Kopper-Totzek gasifier
C.	Gasifier working at 20 atm
D.	Gasifier working at 40 atm
Answer» C. Gasifier working at 20 atm

Discussion

19.	Reaction of nitric acid and sulphuric acid with phosphate rock produces%!
A.	Nitrophosphate
B.	Diammonium phosphate
C.	Tricresyl phosphate
D.	Tributyl phosphate
Answer» B. Diammonium phosphate

Discussion

20.	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 H‚Äö√á√á from coke oven gas
C.	Steam reforming of naphtha
D.	Natural gas cracking
Answer» B. Cryogenic removal of H‚Äö√á√á from coke oven gas

Discussion

21.	Tricresyl phosphate is chemically represented as%!
A.	(CH‚Äö√á√â C‚Äö√á√ú H‚Äö√á√ë)‚Äö√á√â PO‚Äö√á√ë
B.	Ca‚Äö√á√Ö‚Äö√á√Ñ(PO‚Äö√á√ë)3F‚Äö√á√ú
C.	(NH‚Äö√á√ë)‚Äö√á√áHPO‚Äö√á√ë
D.	NH‚Äö√á√ëH‚Äö√á√áPO‚Äö√á√ë
Answer» B. Ca‚Äö√á√Ö‚Äö√á√Ñ(PO‚Äö√á√ë)3F‚Äö√á√ú

Discussion

22.	Neutralisation of nitric acid with ammonia to produce ammonium nitrate is a/an __________ reaction.%!
A.	Catalytic
B.	Endothermic
C.	Exothermic
D.	Autocatalytic
Answer» D. Autocatalytic

Discussion

23.	*$_Nitrogenous fertiliser is required?
A.	During the early stage of growth to promote development of stem and leaves
B.	For accelerating fruit formation in later stage of growth
C.	To lessen the effect of excessive potash application
D.	None of these
Answer» B. For accelerating fruit formation in later stage of growth

Discussion

24.	*$_Conditioners like finely divided peat are added to the fertiliser to?
A.	Counteract burning
B.	Avoid caking & hardening
C.	Produce bulk
D.	Increase its solubility
Answer» C. Produce bulk

Discussion

25.	*$_Though kinetics of ammonia synthesis dictates the use of low temperature for high equilibrium conversion, yet it is kept moderately high (550¬¨‚àûC), because at low temperature?
A.	Rate of reaction is very low
B.	Very high pressure is required resulting in costly pressure vessel
C.	Space velocity of gas is very low resulting in decreased conversion
D.	None of these
Answer» B. Very high pressure is required resulting in costly pressure vessel

Discussion

26.	*$_Liquid ammonia and 60% nitric acid reaction (which produces ammonium nitrate) is?
A.	Exothermic
B.	Endothermic
C.	Autocatalytic
D.	None of these
Answer» B. Endothermic

Discussion

27.	*$_Fertiliser plant making ammonium sulphate employing gypsum-ammonia reaction (usual practice is to use ammonia and sulphuric acid) is located at?
A.	Rourkela (under SAIL)
B.	Bokaro (under SAIL)
C.	Sindri (under FCI)
D.	Baroda (under G.S.F.C.)
Answer» D. Baroda (under G.S.F.C.)

Discussion

28.	*$_Sodium tri poly phosphate (STPP) is chemically represented as?
A.	Na‚Äö√á√ñP3O‚Äö√á√Ö‚Äö√á√Ñ
B.	Na‚Äö√á√ëP3O‚Äö√á√
C.	Na‚Äö√á√âP4O‚Äö√á√ú
D.	Na‚Äö√á√áPO‚Äö√á√ë
Answer» B. Na‚Äö√á√ëP3O‚Äö√á√

Discussion

29.	*$_I argest capacity nitrogenous fertiliser plants (2700 tons of NH‚Äö√á√â per day) (2 Nos) in India are located at?
A.	Thal-Vaishet (under RCF in Maharashtra) and Hazira (under IFFCO in Gujarat)
B.	Talchar (Orissa) and Ramagundam (A.P.) both under FCI
C.	Korba (M.P.) and Talchar (Orissa) both under FCI
D.	Haldia (W.B) and Namrup (Assam) both under HFC
Answer» B. Talchar (Orissa) and Ramagundam (A.P.) both under FCI

Discussion

30.	*$_Leaching of phosphate rock by strong __________ acid produces phosphoric acid.?
A.	Sulphuric
B.	Hydrochloric
C.	Either A or B
D.	Neither A nor B
Answer» D. Neither A nor B

Discussion

31.	*$_Reaction of nitric acid and sulphuric acid with phosphate rock produces?
A.	Nitrophosphate
B.	Diammonium phosphate
C.	Tricresyl phosphate
D.	Tributyl phosphate
Answer» B. Diammonium phosphate

Discussion

32.	*$_Reaction of anhydrous liquid ammonia with orthophosphoric acid produces?
A.	Ammonium phosphate
B.	Superphosphate
C.	Triple superphosphate
D.	None of these
Answer» B. Superphosphate

Discussion

33.	*$_Vetrocoke solution is?
A.	A mixture of K‚Äö√á√áCO‚Äö√á√â and As‚Äö√á√áO‚Äö√á√â
B.	K‚Äö√á√áSO‚Äö√á√ë
C.	A mixture of Na‚Äö√á√áCO‚Äö√á√â and As‚Äö√á√áO‚Äö√á√â
D.	Na‚Äö√á√áSO‚Äö√á√ë
Answer» B. K‚Äö√á√áSO‚Äö√á√ë

Discussion

34.	*$_Heating of orthophosphoric acid to 250¬¨‚àûC produces?
A.	Metaphosphoric acid
B.	Pyrophosphoric acid
C.	No change in it
D.	None of these
Answer» C. No change in it

Discussion

35.	*$___________ catalyst is used in the production of urea from CO‚Äö√á√á and NH‚Äö√á√â.?
A.	Vanadium pentoxide
B.	No
C.	Alumina
D.	Nickel
Answer» C. Alumina

Discussion

36.	*$_A mixture of phosphate rock __________ is heated in an electric furnace to produce phosphorous.?
A.	Salt & coke
B.	Sand & coke
C.	And coke
D.	And sand
Answer» C. And coke

Discussion

37.	*$_Which of the following does not come under the category of'primary nutrient' for plant growth??
A.	Potassium
B.	Nitrogen
C.	Phosphorous
D.	Sulphur
Answer» E.

Discussion

38.	*$_In __________ converter for ammonia synthesis, the catalyst is arranged in the form of a single continuous bed.?
A.	Fauser-Monte Catini
B.	Claude
C.	Udhe
D.	Kellog
Answer» C. Udhe

Discussion

39.	*$_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
Answer» C. 9-10

Discussion

40.	*$_(CH‚Äö√á√â C‚Äö√á√ú H‚Äö√á√ë)‚Äö√á√â PO‚Äö√á√ë is the chemical formula of?
A.	Triple superphosphate
B.	Tricresyl phosphate
C.	Flourapatite
D.	Superphosphate
Answer» C. Flourapatite

Discussion

41.	*$_A fertiliser contains 82% N‚Äö√á√á. It could be?
A.	Urea
B.	Liquid NH‚Äö√á√â
C.	Ammonium nitrate
D.	None of these
Answer» C. Ammonium nitrate

Discussion

42.	*$_A fertiliser plant is classified as a gas based fertiliser plant, when it uses __________ gas as a source of hydrogen for the manufacture of ammonia.?
A.	Coke oven
B.	Producer
C.	Natural
D.	Coal
Answer» D. Coal

Discussion

43.	*$_Oxidation of ammonia is?
A.	Exothermic
B.	Endothermic
C.	Non-catalytic
D.	Autocatalytic
Answer» B. Endothermic

Discussion

44.	*$_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 H‚Äö√á√á from coke oven gas
C.	Steam reforming of naphtha
D.	Natural gas cracking
Answer» B. Cryogenic removal of H‚Äö√á√á from coke oven gas

Discussion

45.	*$_Which of the following gasifiers can be attached to coal based fertiliser plants??
A.	Lurgi (high pressure) gasifier
B.	Kopper-Totzek gasifier
C.	Gasifier working at 20 atm
D.	Gasifier working at 40 atm
Answer» C. Gasifier working at 20 atm

Discussion

46.	*$_Neutralisation of nitric acid with ammonia to produce ammonium nitrate is a/an __________ reaction.?
A.	Catalytic
B.	Endothermic
C.	Exothermic
D.	Autocatalytic
Answer» D. Autocatalytic

Discussion

47.	*$_Tricresyl phosphate is chemically represented as?
A.	(CH‚Äö√á√â C‚Äö√á√ú H‚Äö√á√ë)‚Äö√á√â PO‚Äö√á√ë
B.	Ca‚Äö√á√Ö‚Äö√á√Ñ(PO‚Äö√á√ë)3F‚Äö√á√ú
C.	(NH‚Äö√á√ë)‚Äö√á√áHPO‚Äö√á√ë
D.	NH‚Äö√á√ëH‚Äö√á√áPO‚Äö√á√ë
Answer» B. Ca‚Äö√á√Ö‚Äö√á√Ñ(PO‚Äö√á√ë)3F‚Äö√á√ú

Discussion

48.	/_Multistage operation (as in the case of catalytic oxidation of SO‚Äö√á√á) is not carried out for NH‚Äö√á√â synthesis, because of?
A.	Comparatively higher pressure drop
B.	High cost of the high pressure vessel used for the reactor
C.	Higher pumping cost
D.	Chances of entrainment and disturbance of catalyst bed
Answer» C. Higher pumping cost

Discussion

49.	/_HPO‚Äö√á√â is the chemical formula of __________ phosphoric acid.?
A.	Pyro
B.	Ortho
C.	Meta
D.	None of these
Answer» D. None of these

Discussion

50.	/_H‚Äö√á√ëP‚Äö√á√áO‚Äö√á√° is the chemical formula of __________ phosphoric acid.?
A.	Pyro
B.	Ortho
C.	Meta
D.	None of these
Answer» B. Ortho

Discussion

Explore topic-wise MCQs in Chemical Engineering.

Nitro-phosphate (manufactured at Trom-bay) is a __________ fertiliser.%!

Superphosphate is manufactured by reacting phosphate rock with%!

Out of the following, N‚Äö√á√á content is minimum in%!

In natural gas, the C/H ratio (by weight) varies in the range of%!

NPK means a __________ fertiliser.%!

Main component of bone ash is%!

Fertilizer plant getting its hydrogen requirement partly from coke oven gas is situated at%!

Raw materials required for the production of CAN (Calcium ammonium nitrate) is NH‚Äö√á√â%!

Multistage operation (as in the case of catalytic oxidation of SO‚Äö√á√á) is not carried out for NH‚Äö√á√â synthesis, because of%!

Liquid ammonia and 60% nitric acid reaction (which produces ammonium nitrate) is%!

Fertiliser plant making ammonium sulphate employing gypsum-ammonia reaction (usual practice is to use ammonia and sulphuric acid) is located at%!

Sodium tri poly phosphate (STPP) is chemically represented as%!

I argest capacity nitrogenous fertiliser plants (2700 tons of NH‚Äö√á√â per day) (2 Nos) in India are located at%!

Reaction of anhydrous liquid ammonia with orthophosphoric acid produces%!

Leaching of phosphate rock by strong __________ acid produces phosphoric acid.%!

Conditioners like finely divided peat are added to the fertiliser to%!

Though kinetics of ammonia synthesis dictates the use of low temperature for high equilibrium conversion, yet it is kept moderately high (550¬¨‚àûC), because at low temperature%!

Which of the following gasifiers can be attached to coal based fertiliser plants?%!

Reaction of nitric acid and sulphuric acid with phosphate rock produces%!

Which of the following is the costliest source of hydrogen needed for ammonia manufacture under Indian condition?%!

Tricresyl phosphate is chemically represented as%!

Neutralisation of nitric acid with ammonia to produce ammonium nitrate is a/an __________ reaction.%!

*$_Nitrogenous fertiliser is required?

*$_Conditioners like finely divided peat are added to the fertiliser to?

*$_Though kinetics of ammonia synthesis dictates the use of low temperature for high equilibrium conversion, yet it is kept moderately high (550¬¨‚àûC), because at low temperature?

*$_Liquid ammonia and 60% nitric acid reaction (which produces ammonium nitrate) is?

*$_Fertiliser plant making ammonium sulphate employing gypsum-ammonia reaction (usual practice is to use ammonia and sulphuric acid) is located at?

*$_Sodium tri poly phosphate (STPP) is chemically represented as?

*$_I argest capacity nitrogenous fertiliser plants (2700 tons of NH‚Äö√á√â per day) (2 Nos) in India are located at?

*$_Leaching of phosphate rock by strong __________ acid produces phosphoric acid.?

*$_Reaction of nitric acid and sulphuric acid with phosphate rock produces?

*$_Reaction of anhydrous liquid ammonia with orthophosphoric acid produces?

*$_Vetrocoke solution is?

*$_Heating of orthophosphoric acid to 250¬¨‚àûC produces?

*$___________ catalyst is used in the production of urea from CO‚Äö√á√á and NH‚Äö√á√â.?

*$_A mixture of phosphate rock __________ is heated in an electric furnace to produce phosphorous.?

*$_Which of the following does not come under the category of'primary nutrient' for plant growth??

*$_In __________ converter for ammonia synthesis, the catalyst is arranged in the form of a single continuous bed.?

*$_pH value of soil is maintained at __________ by the addition of fertiliser for optimum growth and health of the plant.?

*$_(CH‚Äö√á√â C‚Äö√á√ú H‚Äö√á√ë)‚Äö√á√â PO‚Äö√á√ë is the chemical formula of?

*$_A fertiliser contains 82% N‚Äö√á√á. It could be?

*$_A fertiliser plant is classified as a gas based fertiliser plant, when it uses __________ gas as a source of hydrogen for the manufacture of ammonia.?

*$_Oxidation of ammonia is?

*$_Which of the following is the costliest source of hydrogen needed for ammonia manufacture under Indian condition??

*$_Which of the following gasifiers can be attached to coal based fertiliser plants??

*$_Neutralisation of nitric acid with ammonia to produce ammonium nitrate is a/an __________ reaction.?

*$_Tricresyl phosphate is chemically represented as?

*/*_Multistage operation (as in the case of catalytic oxidation of SO‚Äö√á√á) is not carried out for NH‚Äö√á√â synthesis, because of?

*/*_HPO‚Äö√á√â is the chemical formula of __________ phosphoric acid.?

*/*_H‚Äö√á√ëP‚Äö√á√áO‚Äö√á√° is the chemical formula of __________ phosphoric acid.?

/_Multistage operation (as in the case of catalytic oxidation of SO‚Äö√á√á) is not carried out for NH‚Äö√á√â synthesis, because of?

/_HPO‚Äö√á√â is the chemical formula of __________ phosphoric acid.?

/_H‚Äö√á√ëP‚Äö√á√áO‚Äö√á√° is the chemical formula of __________ phosphoric acid.?