Discussion
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- Question
Optimum reaction temperature in steam reforming of naphtha is __________ °C.
Options- A. 700 - 1000
- B. 300 - 450
- C. 1500-1700
- D. 100-200
- Correct Answer
- 700 - 1000
- 1. Raw materials required for the production of CAN (Calcium ammonium nitrate) is NH3
Options- A. HNO3 & limestone
- B. CO2 & H2SO4
- C. HNO3 & NH4Cl
- D. CO2 & KNO3 Discuss
- 2. Which of the following is not a mixed fertiliser?
Options- A. Nitrophosphate
- B. Calcium ammonium nitrate (CAN)
- C. Ammonium phosphate
- D. None of these Discuss
- 3. Reaction of calcium fluorapatite with sulphuric acid produces
Options- A. ortho-phosphoric acid.
- B. simple superphosphate.
- C. triple superphosphate.
- D. red phosphorous. Discuss
- 4. Which of the following gasifiers can be attached to coal based fertiliser plants?
Options- A. Lurgi (high pressure) gasifier.
- B. Kopper-Totzek gasifier.
- C. Gasifier working at 20 atm.
- D. Gasifier working at 40 atm. Discuss
- 5. Commercial production of hydrogen for the manufacture of nitrogeneous fertilisers is done by
Options- A. steam reforming of naphtha and cracking of natural gas.
- B. electrolysis of water.
- C. cryogenic separation of hydrogen from coke oven gas.
- D. all (a), (b) and (c) Discuss
- 6. Pick out the correct statement.
Options- A. Reaction of NH3 with HNO3 to produce (NH4)2NO3 is endothermic.
- B. With increase in NH3/CO2 ratio, urea yield decreases for a given temperature, pressure and total feed rate.
- C. Biuret (an intermediate during urea manufacture) is toxic to seeds and animals.
- D. both (b) and (c). Discuss
- 7. 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
- 8. A nitrogenous fertiliser contains 20% N2. It could be
Options- A. ammonium nitrate.
- B. calcium ammonium nitrate (CAN).
- C. urea.
- D. ammonium chloride. Discuss
- 9. 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
- 10. Formation of ammonium carbamate by reaction of NH3 with CO2 is a/an __________ reaction.
Options- A. catalytic
- B. exothermic
- C. endothermic
- D. reversible Discuss
Fertiliser Technology problems
Search Results
Correct Answer: HNO3 & limestone
Correct Answer: Calcium ammonium nitrate (CAN)
Correct Answer: simple superphosphate.
Correct Answer: Kopper-Totzek gasifier.
Correct Answer: all (a), (b) and (c)
Correct Answer: With increase in NH3/CO2 ratio, urea yield decreases for a given temperature, pressure and total feed rate.
Correct Answer: Amjhor (Jharkhand)
Correct Answer: calcium ammonium nitrate (CAN).
Correct Answer: increasing the temperature.
Correct Answer: exothermic
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