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Chemical Engineering :: Fertiliser Technology

  1. Catalyst used in ammonia synthesis uses __________ as a promoter.

  2. A.

     Pt

    B.

     K₂O

    C.

     Al2O₃

    D.

     Ni


  3. Commercial fertilisers are available mostly in the form of

  4. A.

     Powder

    B.

     Grannules

    C.

     Lumps

    D.

     Flakes


  5. Bio-fertilisers are cheaper, renewable and pollution free. They improve the __________ of the soil.

  6. A.

     Nutrient supply

    B.

     Texture

    C.

     Water holding capacity

    D.

     All of the above


  7. Hydrogen content of coke oven gas is __________ percent.

  8. A.

     4

    B.

     22

    C.

     58

    D.

     84


  9. Vetrocoke solution is

  10. A.

     A mixture of K₂CO₃ and As₂O₃

    B.

     K₂SO₄

    C.

     A mixture of Na₂CO₃ and As₂O₃

    D.

     Na₂SO₄


  11. In natural gas, the C/H ratio (by weight) varies in the range of

  12. A.

     3-4

    B.

     8-10

    C.

     15-17

    D.

     20-25


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

  14. A.

     Urea

    B.

     Ammonium nitrate

    C.

     Ammonium sulphate

    D.

     Ammonium chloride


  15. Superphosphate is manufactured by reacting phosphate rock with

  16. A.

     Acetic acid

    B.

     Sulphuric acid

    C.

     Aluminium chloride

    D.

     None of these


  17. Nitro-phosphate (manufactured at Trom-bay) is a __________ fertiliser.

  18. A.

     Mixed

    B.

     Complex

    C.

     Highly hygroscopic

    D.

     Highly explosive