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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. Reaction of anhydrous liquid ammonia with orthophosphoric acid produces

    2. A.
    ammonium phosphate
    B.
    superphosphate
    C.
    triple superphosphate
    D.
    none of these

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  2. Electric furnace method for production of phosphorous uses phosphate rock

    3. A.
    and phosphoric acid
    B.
    and coke
    C.
    and sulphuric acid
    D.
    silica and coke

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  3. Commercial production of hydrogen for the manufacture of nitrogeneous fertilisers is done by

    4. A.
    steam reforming of naphtha and cracking of natural gas.
    B.
    electrolysis of water.
    C.
    cryogenic separation of hydrogen from coke oven gas.
    D.
    all (a), (b) and (c)

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  4. Which fertiliser is made (using coke oven gas) in by products plant of an integrated steel plant ?

    5. A.
    Urea
    B.
    CAN
    C.
    Ammonium sulphate
    D.
    Superphosphate

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  5. Ammonium phosphate is a __________ fertiliser.

    6. A.
    nitrogenous
    B.
    phosphatic
    C.
    complex
    D.
    mixed

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  6. Maximum stability of white phosphorous is at

    7. A.
    very high pressure
    B.
    atmospheric pressure
    C.
    room temperature
    D.
    >600°C

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  7. Potassic fertilisers do not promote the development of

    8. A.
    stems & leaves during early stage of plant growth.
    B.
    starches of potatoes & grains.
    C.
    sugar of fruits & vegetables.
    D.
    fibrous materials of plants.

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  8. The optimum size of the ammonia plant is __________ tons/day.

    9. A.
    10
    B.
    100
    C.
    1000
    D.
    1000C.

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  9. Main component of bone ash is

    10. A.
    calcium sulphate
    B.
    calcium phosphate
    C.
    calcium carbonate
    D.
    sodium phosphate

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  10. Multistage operation (as in the case of catalytic oxidation of SO2) is not carried out for NH3 synthesis, because of

    11. A.
    comparatively higher pressure drop.
    B.
    high cost of the high pressure vessel used for the reactor.
    C.
    higher pumping cost.
    D.
    chances of entrainment and disturbance of catalyst bed.

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