logo

CuriousTab

CuriousTab

Discussion


Home Chemical Engineering Fertiliser Technology Comments

  • Question
  • In the manufacture of urea, the intermediate chemical formed is


  • Options
  • A. biuret
  • B. ammonium carbamate
  • C. ammonium carbonate
  • D. none of these

  • Correct Answer
  • ammonium carbamate 


  • Fertiliser Technology problems


    Search Results


    • 1. Fauser Monte Catini converter is used for

    • Options
    • A. ammonia synthesis (e.g. at FCI Sindri).
    • B. methanation of CO and CO2.
    • C. shift conversion (i.e. CO to CO2).
    • D. none of these.
    • Discuss
    • 2. Nitrogen content of a nitrogenous fertiliser is 35%. It could be

    • Options
    • A. urea
    • B. ammonium nitrate
    • C. calcium ammonium nitrate (CAN)
    • D. ammonium sulphate
    • Discuss
    • 3. During nitric acid manufacture, catalytic oxidation of ammonia at 800°C in presence of platinum catalyst produces nitrogen oxide. Conversion of NH3 to NO is about __________ percent.

    • Options
    • A. 38
    • B. 68
    • C. 82
    • D. 98
    • Discuss
    • 4. Plant tranquillisers

    • Options
    • A. hold back stem growth and halt plants at a desired height.
    • B. cause early maturation of plants.
    • C. accelerate ripening of food and grain.
    • D. produce seedless fruit.
    • Discuss
    • 5. Fertilizer plant getting its hydrogen requirement partly from coke oven gas is situated at

    • Options
    • A. Rourkela (under SAIL)
    • B. Barauni (under HFC)
    • C. Nangal (under NFL)
    • D. Talchar (under FCI)
    • Discuss
    • 6. Phosphatic fertiliser is graded based on its __________ content.

    • Options
    • A. P2O3
    • B. PCl5
    • C. P2O5
    • D. H3PO4
    • Discuss
    • 7. Which of the following is not a measure component necessarily to be present in fertilisers?

    • Options
    • A. Nitrogen
    • B. Potassium
    • C. Phosphorous
    • D. Sulphur
    • Discuss
    • 8. Ammonium nitrate is

    • Options
    • A. having about 40% N2.
    • B. not hygroscopic.
    • C. not prone to explosive thermal decomposition.
    • D. mixed with limestone powder to reduce its explosive nature before using it as a fertilizer.
    • Discuss
    • 9. Nitric acid is produced on commercial scale in a fertiliser plant by

    • Options
    • A. oxidation of ammonia.
    • B. CaNO3 + H2SO4 reaction.
    • C. passing air through high voltage electric arc.
    • D. none of these.
    • Discuss
    • 10. Reaction of __________ acid with phosphate rock produces superphosphates.

    • Options
    • A. hydrochloric
    • B. sulphuric
    • C. nitric
    • D. phosphoric
    • Discuss


    Comments

    There are no comments.

Enter a new Comment