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Chemical Engineering :: Chemical Process

Chemical Process - Section 1
Chemical Process - Section 2
Chemical Process - Section 3
Chemical Process - Section 4
Chemical Process - Section 5
Chemical Process - Section 6
Chemical Process - Section 7
Chemical Process - Section 8
Chemical Process - Section 9
Chemical Process - Section 10
Chemical Process - Section 11
Chemical Process - Section 12
Chemical Process - Section 13
Chemical Process - Section 14
Chemical Process - Section-15

  1. Chalcopyrite is the main ore of

    2. A.
    copper
    B.
    lead
    C.
    tin
    D.
    iron

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  2. The end bleaching agent used to move last traces of colour bodies from the pulp is

    3. A.
    chlorine dioxide (ClO2)
    B.
    MgO
    C.
    SO2 gas
    D.
    mercaptans

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  3. Bio-degradable detergents

    4. A.
    can be readily oxidised.
    B.
    pose problem in sewerage plant.
    C.
    have an isoparaffinic structure.
    D.
    should not be used as it spoils the cloth.

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  4. Sea water contains about __________ ppm of bromine.

    5. A.
    5
    B.
    70
    C.
    500
    D.
    1700

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  5. Which allotrope of sulphur is insoluble in carbon disulphide ?

    6. A.
    Rhombic sulphur
    B.
    Monoclinic sulphur
    C.
    Plastic sulphur
    D.
    Milk of sulphur

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  6. Lubricating greases are a mixture of

    7. A.
    mineral oil, soap and additives.
    B.
    mineral oil and metallic soap.
    C.
    mineral oil and fatty oil.
    D.
    fatty oil and metallic soap.

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  7. Metallic soap is __________ salt of fatty acids.

    8. A.
    sodium
    B.
    potassium
    C.
    both sodium & potassium
    D.
    aluminium or calcium

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  8. Cation exchanger is regenerated usually with

    9. A.
    NaOH
    B.
    H2SO4
    C.
    hydrazine
    D.
    alum solution

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  9. In contact process, SO3 is absorbed in 97% H2SO4 and not in water, because

    10. A.
    SO3 gas is sparingly soluble in water.
    B.
    water forms an acid mist, which is difficult to absorb.
    C.
    the purity of acid is affected.
    D.
    scale formation in the absorber is to be avoided.

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  10. Bitterns is a/an

    11. A.
    unsaturated fat.
    B.
    starting material for the production of iodine.
    C.
    by-product of chlor-alkali industry.
    D.
    none of these.

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