Discussion
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- Question
Reaction of orthophosphoric acid with phosphate rock produces
Options- A. superphosphate
- B. triple superphosphate
- C. metaphosphoric acid
- D. monoammonium phosphate
- Correct Answer
- triple superphosphate
- 1. Which of the following is a natural inorganic fertiliser?
Options- A. Chile salt petre
- B. Oilcake
- C. Gobar mannure
- D. None of these Discuss
- 2. Formation of ammonium carbamate by reaction of NH3 with CO2 is a/an __________ reaction.
Options- A. catalytic
- B. exothermic
- C. endothermic
- D. reversible Discuss
- 3. Conversion achieved in HNO3 synthesis with the use of platinum catalyst is about 95-97%. The rate of formation of nitrogen dioxide from the oxidation of nitric acid is favoured by
Options- A. decreasing the pressure.
- B. decreasing the temperature.
- C. increasing the temperature.
- D. none of these. Discuss
- 4. A nitrogenous fertiliser contains 20% N2. It could be
Options- A. ammonium nitrate.
- B. calcium ammonium nitrate (CAN).
- C. urea.
- D. ammonium chloride. Discuss
- 5. Rock phosphate used for the production of phosphatic fertiliser is mined at
Options- A. Amjhor (Jharkhand)
- B. Talchar (Orissa)
- C. Bailladella (M.P.)
- D. Kiriburu (Bihar) Discuss
- 6. pH value of soil is maintained at __________ by the addition of fertiliser for optimum growth and health of the plant.
Options- A. 4-5
- B. 7-8
- C. 9-10
- D. 12-13 Discuss
- 7. Yield of elemental phosphorous from rock phosphate is about __________ percent.
Options- A. 1-2
- B. 15-25
- C. 40-45
- D. 60-65 Discuss
- 8. A phosphatic fertiliser contains 16% P2O5. It could be
Options- A. dicalcium phosphate
- B. superphosphate
- C. triple superphosphate
- D. none of these Discuss
- 9. CaH4(PO4)2 is the chemical formula of
Options- A. superphosphate
- B. triple superphosphate
- C. calcium phosphate
- D. meta phosphoric acid Discuss
- 10. Which of the following is the costliest source of hydrogen needed for ammonia manufacture under Indian condition?
Options- A. Electrolysis of water.
- B. Cryogenic removal of H2 from coke oven gas.
- C. Steam reforming of naphtha.
- D. Natural gas cracking. Discuss
Fertiliser Technology problems
Search Results
Correct Answer: Chile salt petre
Correct Answer: exothermic
Correct Answer: increasing the temperature.
Correct Answer: calcium ammonium nitrate (CAN).
Correct Answer: Amjhor (Jharkhand)
Correct Answer: 7-8
Correct Answer: 15-25
Correct Answer: superphosphate
Correct Answer: triple superphosphate
Correct Answer: Electrolysis of water.
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