Fertiliser Technology problems
- 1. Dehydration of ammonium carbamate produces
Options- A. urea
- B. biuret
- C. ammonia water
- D. none of these Discuss
Correct Answer: urea
- 2. The fertiliser plant getting hydrogen by electrolysis of water is situated at
Options- A. Namrup
- B. Nangal
- C. Rourkela
- D. Korba Discuss
Correct Answer: Nangal
- 3. Main component of bone ash is
Options- A. calcium sulphate
- B. calcium phosphate
- C. calcium carbonate
- D. sodium phosphate Discuss
Correct Answer: calcium phosphate
- 4. Both white phosphorous as well as red phosphorous
Options- A. are soluble in CS2.
- B. burns when heated in air.
- C. reacts with hot caustic soda solution to give phosphine.
- D. all (a), (b), and (c). Discuss
Correct Answer: burns when heated in air.
- 5. Multistage operation (as in the case of catalytic oxidation of SO2) is not carried out for NH3 synthesis, because of
Options- A. comparatively higher pressure drop.
- B. high cost of the high pressure vessel used for the reactor.
- C. higher pumping cost.
- D. chances of entrainment and disturbance of catalyst bed. Discuss
Correct Answer: high cost of the high pressure vessel used for the reactor.
- 6. The optimum size of the ammonia plant is __________ tons/day.
Options- A. 10
- B. 100
- C. 1000
- D. 1000C. Discuss
Correct Answer: 1000
- 7. Chemical formula of biuret is
Options- A. NH2.CO.NH2
- B. NH3.COO.NH3
- C. NH2CONHCONH2
- D. NH4COONH2 Discuss
Correct Answer: NH2CONHCONH2
- 8. Nitrogen content of calcium ammonium nitrate (CAN) is __________ percent.
Options- A. 10
- B. 25
- C. 50
- D. 80 Discuss
Correct Answer: 25
- 9. Triple superphosphate is made by reacting phosphate rock with __________ acid.
Options- A. phosphoric
- B. nitric
- C. sulphuric
- D. hydrochloric Discuss
Correct Answer: phosphoric
- 10. H4P2O7 is the chemical formula of __________ phosphoric acid.
Options- A. pyro
- B. ortho
- C. meta
- D. none of these Discuss
Correct Answer: pyro
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