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  • Question
  • Low grade coal is __________ to produce ammonia synthesis gas.


  • Options
  • A. hydrogenated
  • B. liquefied
  • C. gasified
  • D. dehydrogenated

  • Correct Answer
  • gasified 


  • Fertiliser Technology problems


    Search Results


    • 1. Which is the best fertiliser for paddy?

    • Options
    • A. Ammonium sulphate
    • B. Nitro-phosphate
    • C. Superphosphate
    • D. Potassium nitrate
    • Discuss
    • 2. Which of the following fertilisers is needed for promoting the development of leaves and stems during early stages of plant growth?

    • Options
    • A. Nitrogeneous fertiliser
    • B. Potassic fertiliser
    • C. Phosphatic fertiliser
    • D. None of these
    • Discuss
    • 3. C/H ratio (by weight) of naphtha used in nitrogenous fertiliser making is about

    • Options
    • A. 2
    • B. 6
    • C. 13
    • D. 20
    • Discuss
    • 4. Which nutrient in fertiliser makes the plant stems stronger and increases branching?

    • Options
    • A. Nitrogen
    • B. Phosphorous
    • C. Potassium
    • D. Calcium
    • Discuss
    • 5. Gas based fertiliser plants use

    • Options
    • A. natural gas as a source of hydrogen.
    • B. natural gas as heating medium.
    • C. coal gas as a source of hydrogen.
    • D. coal gas as heating medium.
    • Discuss
    • 6. In natural gas, the C/H ratio (by weight) varies in the range of

    • Options
    • A. 3-4
    • B. 8-10
    • C. 15-17
    • D. 20-25
    • Discuss
    • 7. Chemical formula of metaphosphoric acid is

    • Options
    • A. H3PO4
    • B. H4P2O7
    • C. HPO3
    • D. same as that of pyrophosphoric acid
    • Discuss
    • 8. Fusion zone in the electric furnace used for reduction of phosphate rock to elemental phosphorous is maintained at __________ °C.

    • Options
    • A. 250-300
    • B. 500-750
    • C. 950-1050
    • D. 1400-1450
    • Discuss
    • 9. __________ is the undesirable by-product produced in the manufacture of urea.

    • Options
    • A. Ammonium carbonate
    • B. Biuret
    • C. Carbon dioxide
    • D. Ammonium carbamate
    • Discuss
    • 10. Which of the following set of conditions is favourable for the maximum yield of ammonia by Haber's process?

    • Options
    • A. High pressure, low reactants concentration, high temperature.
    • B. High pressure, low reactants concentration, low temperature.
    • C. High pressure, high reactants concentration, low temperature.
    • D. Low pressure, high reactants concentration, low temperature.
    • Discuss


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