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  • Question

  • Fertiliser plant making ammonium sulphate employing gypsum-ammonia reaction (usual practice is to use ammonia and sulphuric acid) is located at


  • Options
  • A. Rourkela (under SAIL)
  • B. Bokaro (under SAIL)
  • C. Sindri (under FCI)
  • D. Baroda (under G.S.F.C.)

  • Correct Answer
  • Sindri (under FCI) 

    • Fertiliser Technology problems

    Search Results

    • 1. During conversion of ammonium carbamate into urea, presence of large excess of water

    • Options
    • A. increases the yield of urea.
    • B. adversely affects the yield of urea.
    • C. reduces the evaporator load by diluting the urea solution.
    • D. does not affect the yield of urea.
      • Discuss
    • 2. Reaction of dilute sulphuric acid with phosphate rock produces

    • Options
    • A. phosphoric acid
    • B. superphosphate
    • C. triple superphosphate
    • D. gypsum
      • Discuss
    • 3. Dehydration of ammonium carbamate (to produce urea) is a/an __________ reaction.

    • Options
    • A. reversible
    • B. catalytic
    • C. exothermic
    • D. endothermic
      • Discuss
    • 4. Calcium ammonium nitrate (CAN) is

    • Options
    • A. a mixed fertiliser
    • B. a straight fertiliser
    • C. a complex fertiliser
    • D. not a fertiliser ; it is an explosive
      • Discuss
    • 5. Heating of orthophosphoric acid to 250°C produces

    • Options
    • A. metaphosphoric acid
    • B. pyrophosphoric acid
    • C. no change in it
    • D. none of these
      • Discuss
    • 6. Which of the following does not come under the category of 'secondary nutrient' for plant growth?

    • Options
    • A. Calcium
    • B. Magnesium
    • C. Sulphur
    • D. Oxygen
      • Discuss
    • 7. Pick out the wrong statement.

    • Options
    • A. Yellow phosphorous which is the most reactive allotropic form of phosphorous is transported under water.
    • B. Apatite is the principal material present in phosphate rock which is chemically Ca10 (PO4)6 (F, Cl, OH).
    • C. Urea is more hygroscopic than ammonium nitrate.
    • D. Nitrogen fixation means the process of bringing atmospheric nitrogen into combination i.e. into nitrogen compound form.
      • Discuss
    • 8. Vetrocoke solution is

    • Options
    • A. a mixture of K2CO3 and As2O3.
    • B. K2SO4.
    • C. a mixture of Na2CO3 and As2O3.
    • D. Na2SO4.
      • Discuss
    • 9. Ammonium sulphate fertiliser is

    • Options
    • A. the highest concentration nitrogenous fertiliser.
    • B. the best fertiliser for paddy.
    • C. a basic fertiliser.
    • D. a neutral fertiliser.
      • Discuss
    • 10. CO2 present in reformed gas (obtained by steam reforming of naphtha) is removed by absorbing in

    • Options
    • A. mono-ethanolamine (MEA)
    • B. slaked lime
    • C. ammoniacal liquor
    • D. Methyl-Ethyl Ketone (MEK)
      • Discuss

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