Home / Chemical Engineering / Fertiliser Technology :: Section 4

Chemical Engineering :: Fertiliser Technology

  1. Ammonium nitrate is

  2. 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.

    View Answer

    Workspace

    Discuss Discuss in Forum


  3. Urea is a better fertilizer than ammonium sulphate, because

  4. A.
    it is cheaper.
    B.
    nitrogen content is higher.
    C.
    it is not poisonous.
    D.
    it is easy to manufacture.

    View Answer

    Workspace

    Discuss Discuss in Forum


  5. Reaction of cresylic acid with __________ produces tricresyl phosphate.

  6. A.
    phosphorous pentoxide
    B.
    phosphorous oxychloride
    C.
    ammonium phosphate
    D.
    calcium phosphate

    View Answer

    Workspace

    Discuss Discuss in Forum


  7. In the manufacture of urea, the intermediate chemical formed is

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

    View Answer

    Workspace

    Discuss Discuss in Forum


  9. Nitrolime is chemically known as

  10. A.
    calcium nitrate
    B.
    ammonium nitrate
    C.
    calcium ammonium nitrate (CAN)
    D.
    none of these

    View Answer

    Workspace

    Discuss Discuss in Forum


  11. Potassic fertilisers

  12. A.
    are useful during early stage of the plant growth.
    B.
    stimulate early growth and accelerate seeding.
    C.
    help in development of starches of potatoes and grain.
    D.
    none of these.

    View Answer

    Workspace

    Discuss Discuss in Forum


  13. The main constituent of rock phosphate is

  14. A.
    mono-calcium phosphate
    B.
    di-calcium phosphate
    C.
    fluorspar
    D.
    none of these

    View Answer

    Workspace

    Discuss Discuss in Forum


  15. Out of the following, N2 content is minimum in

  16. A.
    urea
    B.
    ammonium nitrate
    C.
    ammonium sulphate
    D.
    ammonium chloride

    View Answer

    Workspace

    Discuss Discuss in Forum


  17. Which of the following nitrogenous fertilisers has the highest percentage of nitrogen ?

  18. A.
    Calcium nitrate
    B.
    Calcium ammonium nitrate (CAN)
    C.
    Urea
    D.
    Ammonium sulphate

    View Answer

    Workspace

    Discuss Discuss in Forum


  19. Nitrolime is

  20. A.
    calcium nitrate.
    B.
    calcium ammonium nitrate.
    C.
    a mixture of nitric acid and lime.
    D.
    a mixture of ammonium nitrate and calcium nitrate.

    View Answer

    Workspace

    Discuss Discuss in Forum