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Chemical Engineering :: Chemical Process

  1. During the absorption of HCl gas in water (to produce liquid HCl), the gas is kept above dew point to

  2. A.

     Increase the rate of absorption

    B.

     Avoid corrosion

    C.

     Reduce the cooling water circulation rate

    D.

     None of these


  3. Glass is

  4. A.

     Mainly CaO

    B.

     Subjected to galvanising

    C.

     A super cooled liquid

    D.

     All of the above


  5. Glauber's salt is chemically

  6. A.

     Calcium sulphate

    B.

     Potassium sulphate

    C.

     Potassium chlorate

    D.

     None of these


  7. Glycerine can be obtained from

  8. A.

     Fat

    B.

     Naphthalene

    C.

     Cumene

    D.

     Sucrose


  9. Glycerine is not used in the

  10. A.

     Manufacture of explosive

    B.

     Conditioning and humidification of tobacco

    C.

     Manufacture of pharmaceuticals

    D.

     None of these


  11. Graphite is a/an

  12. A.

     Electrical insulator

    B.

     Allotrope of carbon

    C.

     Moderator used in nuclear reactor

    D.

     Both B and C


  13. Gun powder uses

  14. A.

     Sulphur

    B.

     Charcoal

    C.

     Potassium nitrate

    D.

     All of the above


  15. Gypsum is chemically

  16. A.

     Calcium chloride

    B.

     Potassium sulphate

    C.

     Sodium sulphate

    D.

     Calcium sulphate


  17. Lime and soda ash are added to water to remove

  18. A.

     Bicarbonates & sulphates of calcium and magnesium

    B.

     Undersirable taste and odour

    C.

     Bacteria

    D.

     Its corrosiveness


  19. Commercial scale production of hydrogen from iron-steam reaction represented by, 3Fe + 3H₂O = Fe₃O₄ + 4H₂, is not practised, as it is

  20. A.

     A slow reaction

    B.

     A discontinuous reaction (requiring regeneration of iron by water gas intermittently)

    C.

     Still in development stage (by employing fluidised bed technique)

    D.

     All of the above