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Chemical Engineering :: Chemical Process

  1. __________ glass has the lowest co-efficient of thermal expansion and hence is more heat resistant.

  2. A.
    Pyrex
    B.
    Soda lime
    C.
    Lead
    D.
    High silica

  3. The amount of benzene present in pure benzol is about __________ percent.

  4. A.
    30
    B.
    50
    C.
    70
    D.
    90

  5. Cumene (isopropyl benzene) is made by

  6. A.
    oxidation of napthalene.
    B.
    propylene alkylation of benzene.
    C.
    polymerisation of a mixture of benzene & propylene.
    D.
    none of these.

  7. Which of the following is not a pyrite ore?

  8. A.
    Celestite
    B.
    Galena
    C.
    Gypsum
    D.
    Siderite

  9. Mannheim furnace is used in the manufacture of

  10. A.
    hydrochloric acid.
    B.
    H2SO4 by Chamber process.
    C.
    calcium carbide.
    D.
    corundum.

  11. Thermosetting materials

  12. A.
    are cross-linked molecules.
    B.
    soften on application of heat.
    C.
    are solvent soluble.
    D.
    none of these.

  13. Pick out the wrong statement. Iodine value of an oil or fat is

  14. A.
    the number of grams of iodine taken up by 100 gm of oil or fat.
    B.
    a measure of its unsaturation.
    C.
    helpful in findings its adulteration & its suitability for making soap.
    D.
    independent of the type of oil, whether it is drying or non-drying.

  15. Nickel is not used as a catalyst in the

  16. A.
    Fischer-Tropsch process.
    B.
    shift conversion.
    C.
    hydrogenation of oil.
    D.
    Ostwald's process of HNO3 manufacture.

  17. __________ iron is the purest form of iron.

  18. A.
    Cast
    B.
    Wrought
    C.
    Pig
    D.
    High silicon

  19. Enamels

  20. A.
    give good glossy finish.
    B.
    are same as varnish.
    C.
    are prepared from non-drying oil.
    D.
    do not contain pigment.