Discussion
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- Question
Maximum stability of white phosphorous is at
Options- A. very high pressure
- B. atmospheric pressure
- C. room temperature
- D. >600°C
- Correct Answer
- >600°C
- 1. Ammonia synthesis reaction is
Options- A. exothermic
- B. endothermic
- C. autocatalytic
- D. none of these Discuss
- 2. Which of the following is the costliest method for commercial production of hydrogen for ammonia synthesis?
Options- A. H2 separation from coke oven gas
- B. Steam reforming of naphtha
- C. Cracking of natural gas
- D. Electrolysis of water Discuss
- 3. A fertiliser contains 82% N2. It could be
Options- A. urea
- B. liquid NH3
- C. ammonium nitrate
- D. none of these Discuss
- 4. Reaction of phosphate rock with 98% H2SO4 produces
Options- A. orthophosphoric acid
- B. superphosphate
- C. white phosphorous
- D. none of these Discuss
- 5. Electric furnace method for production of phosphorous uses phosphate rock
Options- A. and phosphoric acid
- B. and coke
- C. and sulphuric acid
- D. silica and coke Discuss
- 6. Which fertiliser is made (using coke oven gas) in by products plant of an integrated steel plant?
Options- A. Urea
- B. CAN
- C. Ammonium sulphate
- D. Superphosphate Discuss
- 7. Naphtha in a fertiliser plant is used as a source of
Options- A. fuel
- B. H2
- C. N2
- D. O2 Discuss
- 8. Triple superphosphate is chemically represented as
Options- A. CaF2.3Ca3(PO4)2
- B. 3Ca3(PO4)2
- C. Ca(PO3)2
- D. Ca(H2PO4)2 Discuss
- 9. Phosphatic fertilisers
Options- A. are useful during early stage of the plant growth.
- B. accelerate fruit formation in later stages of growth.
- C. lessen the effect of excessive nitrogen application.
- D. none of these Discuss
- 10. Catalyst used in steam reforming of naphtha is
Options- A. nickel
- B. platinum
- C. silica gel
- D. rhodium Discuss
Fertiliser Technology problems
Search Results
Correct Answer: exothermic
Correct Answer: Electrolysis of water
Correct Answer: liquid NH3
Correct Answer: orthophosphoric acid
Correct Answer: silica and coke
Correct Answer: Ammonium sulphate
Correct Answer: H2
Correct Answer: CaF2.3Ca3(PO4)2
Correct Answer: accelerate fruit formation in later stages of growth.
Correct Answer: nickel
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