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Chemical Engineering :: Chemical Process

  1. Industrial production of chloroform requires acetone and

  2. A.

     Phosgene

    B.

     Calcium hypochlorite

    C.

     Chlorine

    D.

     Ammonium chloride


  3. Yellow phosphorus is transported under

  4. A.

     Air

    B.

     Water

    C.

     Nitrogen

    D.

     Helium


  5. SO₂ is bubbled through hot sugar cane juice to

  6. A.

     Act as an acidifying agent

    B.

     Increase its concentration

    C.

     Increase the amount of molasses

    D.

     Increase the crystal size


  7. Hydrazine is largely used

  8. A.

     As a starting material for 'hypo'

    B.

     In photographic industry

    C.

     As rocket fuel

    D.

     In printing industry


  9. Hydrogenation of oil does not

  10. A.

     Remove double bonds

    B.

     Raise its melting point

    C.

     Improve its resistance to oxidation

    D.

     None of these


  11. Hydrolysis of sugar is called

  12. A.

     Hydration

    B.

     Inversion

    C.

     Esterification

    D.

     None of these


  13. Ethyl alcohol cannot be produced

  14. A.

     From waste sulphite substrate of paper mills

    B.

     By esterification and hydroloysis of ethylene

    C.

     From molasses

    D.

     None of these


  15. Pencillin, an antibiotic drug was discovered by

  16. A.

     Alexender

    B.

     Flaming

    C.

     Dr. Zivago

    D.

     None of these


  17. Chemical formula of 'salt cake' is

  18. A.

     Na₂SO₄

    B.

     CaSO₄

    C.

     MgSO₄

    D.

     BaSO₄


  19. Detergent is produced by the sulphonation of dodecyl benzene, which is an __________ reaction.

  20. A.

     Endothermic

    B.

     Exothermic

    C.

     Irreversible

    D.

     Both B and C