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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. Phosphorus vapour comprises of

    2. A.
    P
    B.
    P2
    C.
    P3
    D.
    P4

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  2. Conversion of yellow phosphorous to red phosphorous is done by heating it in covered retorts at __________ °C in absence of air.

    3. A.
    50-80
    B.
    250-400
    C.
    1000-1200
    D.
    800-900

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  3. Commercial fertilisers are available mostly in the form of

    4. A.
    powder
    B.
    grannules
    C.
    lumps
    D.
    flakes

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  4. Pick out the wrong statement.

    5. A.
    All the nitrogenous fertilisers are not soluble in water.
    B.
    A straight fertiliser contains only one nutrient.
    C.
    Calcium cynamide is used as weed killer in onion fields.
    D.
    The phosphorous nutrient makes the plant stem stronger and increases its branches.

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  5. Ammonia synthesis gas is produced from natural gas by

    6. A.
    thermal cracking
    B.
    steam reforming
    C.
    partial oxidation
    D.
    hydrogenation

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  6. Catalyst used in the manufacture of NH3 by Haber's process is finely divided

    7. A.
    nickel
    B.
    iron
    C.
    vanadium pentoxide
    D.
    alumina

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  7. Red phosphorous is changed into white phosphorous by

    8. A.
    heating in presence of light.
    B.
    melting under pressure.
    C.
    vaporisation followed by condensation.
    D.
    none of these.

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  8. Urea is represented as

    9. A.
    NH2.CO.NH2
    B.
    NH3CO.CH3
    C.
    NH.CO2.NH
    D.
    NH3.CO2.NH3

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  9. Two gas based fertiliser plants are located in

    10. A.
    Maharashtra and Gujarat
    B.
    Maharashtra and Orissa
    C.
    Gujarat and Madhya Pradesh
    D.
    Jharkhand and Chattisgarh

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  10. Fertiliser plants get their N2 requirements

    11. A.
    by fractionation of liquified air.
    B.
    by dissociating oxides of nitrogen.
    C.
    from coal gas (coke oven gas).
    D.
    from producer gas.

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