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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. The metallic aluminium is obtained from pure alumina in the presence of fused cryolite by

    2. A.
    electrolysis
    B.
    electrolytic reduction
    C.
    electrolytic oxidation
    D.
    none of these

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  2. Bakelite is chemically known as

    3. A.
    polyvinyl chloride (PVC)
    B.
    polybutadiene
    C.
    phenol formaldehyde
    D.
    polyurathane

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  3. Which of the following is a co-product during the manufacture of caustic soda by electrolysis of brine ?

    4. A.
    Na2CO3
    B.
    NaHCO3
    C.
    H2
    D.
    none of these

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  4. Phthalic anhydride is made by the

    5. A.
    oxidation of naphthalene.
    B.
    oxidation of benzene.
    C.
    dehydrogenation of ethyl benzene.
    D.
    none of these.

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  5. RDX (an explosive), which is more sensitive but less toxic than TNT, is chemically

    6. A.
    cyclo trimethylene trinitramine.
    B.
    trinitro resorcinol.
    C.
    cyclo tetramethylene tetranitramine.
    D.
    trinitro benzene.

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  6. Raw material used in alcohol distilleries in India is

    7. A.
    molasses
    B.
    benzol
    C.
    methylated spirit
    D.
    none of these

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  7. Oil produced by solvent extraction

    8. A.
    has low free fatty acid content.
    B.
    is odourless.
    C.
    both (a) &(b).
    D.
    neither (a) nor (b).

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  8. High acid value of an oil or fat is an indication of

    9. A.
    storage under improper conditions.
    B.
    absence of unsaturation.
    C.
    its smaller molecular weight.
    D.
    none of these.

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  9. Yeast is used in the manufacture of

    10. A.
    pencillin
    B.
    antibiotics
    C.
    wine
    D.
    pasteurised milk

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  10. Liquefaction of gases can not be done by

    11. A.
    exchange of heat with colder stream.
    B.
    adiabatic expansion through a throttle valve (Joule-Thomson expansion).
    C.
    merely compressing it beyond critical pressure.
    D.
    adiabatic expansion against a piston or in a turbine.

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