Discussion
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- Question
Reaction of nitric acid and sulphuric acid with phosphate rock produces
Options- A. nitrophosphate
- B. diammonium phosphate
- C. tricresyl phosphate
- D. tributyl phosphate
- Correct Answer
- nitrophosphate
- 1. 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
- 2. 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
- 3. 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. Discuss
- 4. P2O5 percentage in the phosphoric acid produced by wet process is about
Options- A. 10
- B. 30
- C. 50
- D. 70 Discuss
- 5. 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
- 6. Neutralisation of nitric acid with ammonia to produce ammonium nitrate is a/an __________ reaction.
Options- A. catalytic
- B. endothermic
- C. exothermic
- D. autocatalytic Discuss
- 7. Fertiliser produced during soda ash manufacture by dual process is ammonium
Options- A. chloride
- B. sulphate
- C. nitrate
- D. none of these Discuss
- 8. Fertilizer plant getting its hydrogen requirement partly from coke oven gas is situated at
Options- A. Rourkela (under SAIL)
- B. Barauni (under HFC)
- C. Nangal (under NFL)
- D. Talchar (under FCI) Discuss
- 9. Plant tranquillisers
Options- A. hold back stem growth and halt plants at a desired height.
- B. cause early maturation of plants.
- C. accelerate ripening of food and grain.
- D. produce seedless fruit. Discuss
- 10. During nitric acid manufacture, catalytic oxidation of ammonia at 800°C in presence of platinum catalyst produces nitrogen oxide. Conversion of NH3 to NO is about __________ percent.
Options- A. 38
- B. 68
- C. 82
- D. 98 Discuss
Fertiliser Technology problems
Search Results
Correct Answer: 52-54
Correct Answer: phosphatic
Correct Answer: cryogenic operations (low temperature cooling).
Correct Answer: 30
Correct Answer: excess liquid ammonia and compressed CO2 gas.
Correct Answer: exothermic
Correct Answer: chloride
Correct Answer: Rourkela (under SAIL)
Correct Answer: hold back stem growth and halt plants at a desired height.
Correct Answer: 98
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