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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. __________ is used as a flux in the smelting of copper ore like chalcopyrite.

    2. A.
    Coke breeze
    B.
    Lime powder
    C.
    Silica/quartz
    D.
    Dolomite

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  2. Phenol formaldehyde is produced by condensation polymerisation. It is also known as

    3. A.
    teflon
    B.
    bakelite
    C.
    polyester
    D.
    nylon-66

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  3. Hydrogenation of oil does not

    4. A.
    remove double bonds.
    B.
    raise its melting point.
    C.
    improve its resistance to oxidation.
    D.
    none of these.

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  4. Main constituents of cotton fiber is

    5. A.
    lignin
    B.
    cellulose
    C.
    starch
    D.
    gelatine

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  5. CaCl(OCl) is the chemical formula of

    6. A.
    hypo
    B.
    bleaching powder
    C.
    plaster of paris
    D.
    aqua regia

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  6. Which is the most suitable dye for synthetic fibres ?

    7. A.
    Acid dye
    B.
    Azoic dye
    C.
    Pigment dye
    D.
    Mordant dye

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  7. Pick out the wrong statement.

    8. A.
    Cold rubber (SBR) is superior as compared to hot rubber (SBR).
    B.
    Polymerisation temperature can modify the properties of SBR.
    C.
    Production of cold SBR employs lower pressure as compared to that of hot SBR.
    D.
    none of these.

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  8. Pick out the wrong statement.

    9. A.
    Strongly caking coal should not be used in the Lurgi gasifier.
    B.
    Acetylene gas can not be used for illumination purpose.
    C.
    Water gas is called blue gas because of the color of the flame, when it is burnt.
    D.
    Gaseous fuels require less percentage of excess air for combustion as compared to liquid fuels.

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  9. Hydrolysis of sugar is called

    10. A.
    hydration
    B.
    inversion
    C.
    esterification
    D.
    none of these

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  10. Sulphuric acid completely saturated with sulphur trioxide is called

    11. A.
    concentrated sulphuric acid.
    B.
    oleum.
    C.
    sulphurous acid.
    D.
    dilute sulphuric acid.

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