Discussion
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- Question
Yield of urea can be increased with excess ammonia and higher pressure & temperature, but because of __________ this is normally not done.
Options- A. increased biuret formation
- B. high corrosion rate
- C. increased cost of equipment
- D. all (a), (b) & (c)
- Correct Answer
- all (a), (b) & (c)
- 1. NPK fertiliser is a __________ fertiliser.
Options- A. complex
- B. mixed
- C. nitrogenous
- D. phosphatic Discuss
- 2. Ammonium phosphate is a __________ fertiliser.
Options- A. nitrogenous
- B. phosphatic
- C. complex
- D. mixed Discuss
- 3. Ammonium nitrate (is mixed with limestone) is not used as fertiliser as such, because
Options- A. it is hygroscopic and explosive in nature.
- B. it is highly acidic in nature.
- C. it is a liquid at room temperature.
- D. its nitrogen content is very less. Discuss
- 4. Catalyst used in steam reforming of naphtha is
Options- A. nickel
- B. platinum
- C. silica gel
- D. rhodium Discuss
- 5. 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
- 6. Sodium tri poly phosphate (STPP) is chemically represented as
Options- A. Na5P3O10
- B. Na4P3O8
- C. Na3P4O6
- D. Na2PO4 Discuss
- 7. In __________ converter for ammonia synthesis, the catalyst is arranged in the form of a single continuous bed.
Options- A. Fauser-Monte Catini
- B. Claude
- C. Udhe
- D. Kellog Discuss
- 8. Nitrogen content in ammonium sulphate (a fertiliser) is around __________ percent.
Options- A. 5
- B. 20
- C. 50
- D. 65 Discuss
- 9. Potassic fertilisers do not promote the development of
Options- A. stems & leaves during early stage of plant growth.
- B. starches of potatoes & grains.
- C. sugar of fruits & vegetables.
- D. fibrous materials of plants. Discuss
- 10. Which of the following is not a commercially used feed-stock for the production of ammonia synthesis gas?
Options- A. Water
- B. Naphtha
- C. Tar
- D. Coal/coke oven gas Discuss
Fertiliser Technology problems
Search Results
Correct Answer: mixed
Correct Answer: mixed
Correct Answer: it is hygroscopic and explosive in nature.
Correct Answer: nickel
Correct Answer: accelerate fruit formation in later stages of growth.
Correct Answer: Na5P3O10
Correct Answer: Claude
Correct Answer: 20
Correct Answer: stems & leaves during early stage of plant growth.
Correct Answer: Tar
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