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Chemical Engineering :: Fertiliser Technology

Fertiliser Technology - Section 1
Fertiliser Technology - Section 2
Fertiliser Technology - Section 3
Fertiliser Technology - Section 4
Fertiliser Technology - Section 5
Fertiliser Technology - Section-6

  1. Potassic fertiliser is graded based on its __________ content.

    2. A.
    KCl
    B.
    K2O
    C.
    KNO3
    D.
    K2SO4

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  2. Monte catini process is used for the manufacture of

    3. A.
    nitric acid
    B.
    phosphoric acid
    C.
    urea
    D.
    calcium ammonium nitrate (CAN)

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  3. Promoter used in NH3 synthesis catalyst is

    4. A.
    K2O
    B.
    SiO3
    C.
    V2O5
    D.
    U2O3

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  4. H4P2O7 is the chemical formula of __________ phosphoric acid.

    5. A.
    pyro
    B.
    ortho
    C.
    meta
    D.
    none of these

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  5. Ammonium nitrate (is mixed with limestone) is not used as fertiliser as such, because

    6. A.
    it is hygroscopic and explosive in nature.
    B.
    it is highly acidic in nature.
    C.
    it is a liquid at room temperature.
    D.
    its nitrogen content is very less.

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  6. Phosphatic fertilisers

    7. A.
    are useful during early stage of the plant growth.
    B.
    accelerate fruit formation in later stages of growth.
    C.
    lessen the effect of excessive nitrogen application.
    D.
    none of these

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  7. Naphtha in a fertiliser plant is used as a source of

    8. A.
    fuel
    B.
    H2
    C.
    N2
    D.
    O2

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  8. Pick out the wrong statement.

    9. A.
    Dehydration of ammonium carbamate to produce urea is endothermic.
    B.
    Direct use of liquid ammonia as a fertiliser for a tropical country like India is suitable.
    C.
    Gypsum (CaSO4. 2H2O) is obtained as a by-product in the wet process for manufacture of ortho-phosphoric acid.
    D.
    Phosphate rock when reacted with dilute H2SO4 produces superphosphate.

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  9. Maximum nitrogen percentage is in

    10. A.
    ammonium sulphate.
    B.
    calcium ammonium nitrate.
    C.
    urea.
    D.
    liquid ammonia.

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  10. Nitrogen content in ammonium sulphate (a fertiliser) is around __________ percent.

    11. A.
    5
    B.
    20
    C.
    50
    D.
    65

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