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Chemical Engineering :: Chemical Process

  1. Oxidation of ortho-xylene in presence of __________ catalyst is done to produce phthalic anhydride on commercial scale.

  2. A.

     Nickel

    B.

     Vanadium

    C.

     Alumina

    D.

     Iron


  3. Which of the following is used as a coagulant in treating turbid water?

  4. A.

     Chlorine

    B.

     Ferric sulphate

    C.

     Calcium sulphate

    D.

     Activated carbon


  5. Antibiotic

  6. A.

     Inhibits/destroys the growth of microorganisms

    B.

     Is used as a pain reliever

    C.

     Is an antimalarial

    D.

     Is an anaesthetic


  7. __________ paper is used in the manufacture of newsprint paper.

  8. A.

     Groundwood

    B.

     Board

    C.

     Tissue

    D.

     Wrapping


  9. Digestion of wood-base materials (for manufacture of pulp) is done to

  10. A.

     Remove lignin

    B.

     Produce long fibres

    C.

     Prevent deterioration on storage

    D.

     None of these


  11. Raw materials for 'Solvay Process' for manufacture of the soda ash are

  12. A.

     Salt, limestone and coke or gas

    B.

     Ammonia, salt and limestone

    C.

     Ammonia limestone and coke

    D.

     None of these


  13. Penicillin is separated from fermented broth by

  14. A.

     Extraction with amyl or butyl acetate

    B.

     Ternery azeotropic distillation

    C.

     Evaporation in calendria

    D.

     Extractive distillation


  15. Nitroglycerene absorbed in wood flour, sodium nitrate or ammonium nitrate is commercially used as a controlled explosive called dynamite. The raw material used for its manufacture are glycerene, nitric acid and

  16. A.

     Sulphuric acid

    B.

     Phosphoric acid

    C.

     Hydrochloric acid

    D.

     Hydroflouric acid


  17. Calcareous & argillaceous materials are used in the manufacture of

  18. A.

     Lead

    B.

     Cement

    C.

     Carbon disulphide

    D.

     None of these


  19. Chemical name of aspirin (an analgesic drug) is

  20. A.

     Acetylsalicylic acid

    B.

     Nictonic acid

    C.

     Calcium acetate

    D.

     Methyl salicylate