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- Question
Hydrogen is recovered from coke oven gas on commercial scale (as practised in fertiliser plant at Rourkela) by
Options- A. adsorption on palladium.
- B. cryogenic operations (low temperature cooling).
- C. absorption (using ethanolamine or pyragalloll solution).
- D. none of these.
- Correct Answer
- cryogenic operations (low temperature cooling).
- 1. P2O5 percentage in the phosphoric acid produced by wet process is about
Options- A. 10
- B. 30
- C. 50
- D. 70 Discuss
- 2. The composition of fresh feed to the high temperature, high pressure urea autoclave is
Options- A. excess liquid ammonia and liquefied CO2.
- B. excess liquid ammonia and compressed CO2 gas.
- C. liquid ammonia and excess compressed CO2.
- D. compressed ammonia gas and excess compressed CO2. Discuss
- 3. Ammonia synthesis gas is produced from fuel oil by
Options- A. steam reforming
- B. hydrocracking
- C. partial oxidation
- D. hydrogenation Discuss
- 4. NPK means a __________ fertiliser.
Options- A. mixed
- B. potassic
- C. liquid
- D. solid Discuss
- 5. Pick out the wrong statement.
Options- A. Nitrogen is normally supplied in fertiliser either in ammoniacal or the nitrate form, from which the soil takes it up in the form of ammonium ions or nitrate ions and forms amino acids.
- B. Calcium present in the fertiliser helps in correcting the soil acidity.
- C. Particle size range of a good grannular fertiliser is 10-15 mesh and it contains less moisture as compared to finely divided powder form of fertiliser.
- D. Ammonium nitrate fertiliser is obtained as a by-product in an integrated steel plant having by-product coke ovens. Discuss
- 6. The most suitable fertiliser for accelerating seeding or fruit formation in later stages of plant growth is __________ fertiliser.
Options- A. nitrogenous
- B. phosphatic
- C. potassic
- D. none of these Discuss
- 7. Triple superphosphate which contains about 46% P2O5 is produced by the reaction of phosphate rock with ortho phosphoric acid of____percent concentration.
Options- A. 25-28
- B. 52-54
- C. 75-80
- D. > 98 Discuss
- 8. Reaction of nitric acid and sulphuric acid with phosphate rock produces
Options- A. nitrophosphate
- B. diammonium phosphate
- C. tricresyl phosphate
- D. tributyl phosphate Discuss
- 9. Neutralisation of nitric acid with ammonia to produce ammonium nitrate is a/an __________ reaction.
Options- A. catalytic
- B. endothermic
- C. exothermic
- D. autocatalytic Discuss
- 10. Fertiliser produced during soda ash manufacture by dual process is ammonium
Options- A. chloride
- B. sulphate
- C. nitrate
- D. none of these Discuss
Fertiliser Technology problems
Search Results
Correct Answer: 30
Correct Answer: excess liquid ammonia and compressed CO2 gas.
Correct Answer: partial oxidation
Correct Answer: mixed
Correct Answer: Ammonium nitrate fertiliser is obtained as a by-product in an integrated steel plant having by-product coke ovens.
Correct Answer: phosphatic
Correct Answer: 52-54
Correct Answer: nitrophosphate
Correct Answer: exothermic
Correct Answer: chloride
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