Home / Chemical Engineering / Chemical Process :: Section-15

Chemical Engineering :: Chemical Process

  1. __________ of rubber decreases after its vulcanisation.

  2. A.

     Resistance to the action of organic solvent

    B.

     Tackiness

    C.

     Maximum service temperature

    D.

     Tensile strength

    View Answer

    Workspace

    Discuss Discuss in Forum


  3. The main aim behind cooling the digested chip at the bottom portion of the digestor by injecting cold black liquor is to

  4. A.

     Avoid mechanical weakening of fibre

    B.

     Remove lignin by way of crystallisation

    C.

     Increase the cellulose content

    D.

     None of these

    View Answer

    Workspace

    Discuss Discuss in Forum


  5. Rosin soap is added during paper manufacture to

  6. A.

     Impart adhesive properties

    B.

     Improve opacity

    C.

     Impart resistance to penetration by liquids

    D.

     None of these

    View Answer

    Workspace

    Discuss Discuss in Forum


  7. Sulphuric acid is mainly used in the __________ industry.

  8. A.

     Fertiliser

    B.

     Steel

    C.

     Paper

    D.

     Paint

    View Answer

    Workspace

    Discuss Discuss in Forum


  9. Massacuits is a terminology used in the __________ industry.

  10. A.

     Paint

    B.

     Oil hydrogenation

    C.

     Soap

    D.

     Sugar

    View Answer

    Workspace

    Discuss Discuss in Forum


  11. Acrylonitrile is mainly used in the __________ industry.

  12. A.

     Polymer

    B.

     Printing

    C.

     Dyeing

    D.

     Photographic

    View Answer

    Workspace

    Discuss Discuss in Forum


  13. Most commonly used rubber vulcanising agent is

  14. A.

     Sulphur

    B.

     Bromine

    C.

     Platinum

    D.

     Alumina

    View Answer

    Workspace

    Discuss Discuss in Forum


  15. Blue colour is imparted to glass by the addition of

  16. A.

     FeSO₄

    B.

     PbO

    C.

     CaO

    D.

     NaOH

    View Answer

    Workspace

    Discuss Discuss in Forum


  17. Oils and fats are converted to soap in a process called

  18. A.

     Hydrogenation

    B.

     Esterification

    C.

     Saponification

    D.

     None of these

    View Answer

    Workspace

    Discuss Discuss in Forum


  19. Sea weeds are an important source of

  20. A.

     Fluorine

    B.

     Chlorine

    C.

     Bromine

    D.

     Iodine

    View Answer

    Workspace

    Discuss Discuss in Forum