Discussion
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- Question
Ammonium nitrate is
Options- A. having about 40% N2.
- B. not hygroscopic.
- C. not prone to explosive thermal decomposition.
- D. mixed with limestone powder to reduce its explosive nature before using it as a fertilizer.
- Correct Answer
- mixed with limestone powder to reduce its explosive nature before using it as a fertilizer.
- 1. Which of the following is not a measure component necessarily to be present in fertilisers?
Options- A. Nitrogen
- B. Potassium
- C. Phosphorous
- D. Sulphur Discuss
- 2. Phosphatic fertiliser is graded based on its __________ content.
Options- A. P2O3
- B. PCl5
- C. P2O5
- D. H3PO4 Discuss
- 3. In the manufacture of urea, the intermediate chemical formed is
Options- A. biuret
- B. ammonium carbamate
- C. ammonium carbonate
- D. none of these Discuss
- 4. Fauser Monte Catini converter is used for
Options- A. ammonia synthesis (e.g. at FCI Sindri).
- B. methanation of CO and CO2.
- C. shift conversion (i.e. CO to CO2).
- D. none of these. Discuss
- 5. Nitrogen content of a nitrogenous fertiliser is 35%. It could be
Options- A. urea
- B. ammonium nitrate
- C. calcium ammonium nitrate (CAN)
- D. ammonium sulphate Discuss
- 6. Nitric acid is produced on commercial scale in a fertiliser plant by
Options- A. oxidation of ammonia.
- B. CaNO3 + H2SO4 reaction.
- C. passing air through high voltage electric arc.
- D. none of these. Discuss
- 7. Reaction of __________ acid with phosphate rock produces superphosphates.
Options- A. hydrochloric
- B. sulphuric
- C. nitric
- D. phosphoric Discuss
- 8. Low grade phosphate rock can be used in electrical furnace, because
Options- A. of the better CaO/SiO2 balance for slag formation.
- B. CaO content is less.
- C. it is cheap.
- D. it produces low cost product. Discuss
- 9. Catalyst used in the oxidation of ammonia is
Options- A. platinum-beryllium
- B. platinum-rhodium
- C. cobalt-molybdenum
- D. platinum-molybdenum Discuss
- 10. Temperature and pressure in urea autoclave is
Options- A. 120°C and 300 atm.
- B. 190°C and 200 atm.
- C. 400°C and 550 atm.
- D. 200°C and 10 atm. Discuss
Fertiliser Technology problems
Search Results
Correct Answer: Sulphur
Correct Answer: P2O5
Correct Answer: ammonium carbamate
Correct Answer: ammonia synthesis (e.g. at FCI Sindri).
Correct Answer: ammonium nitrate
Correct Answer: oxidation of ammonia.
Correct Answer: sulphuric
Correct Answer: of the better CaO/SiO2 balance for slag formation.
Correct Answer: platinum-rhodium
Correct Answer: 190°C and 200 atm.
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