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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

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  3. Yellow phosphorus is transported under

  4. A.

     Air

    B.

     Water

    C.

     Nitrogen

    D.

     Helium

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  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

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  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

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  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

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  11. Hydrolysis of sugar is called

  12. A.

     Hydration

    B.

     Inversion

    C.

     Esterification

    D.

     None of these

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  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

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  15. Pencillin, an antibiotic drug was discovered by

  16. A.

     Alexender

    B.

     Flaming

    C.

     Dr. Zivago

    D.

     None of these

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  17. Chemical formula of 'salt cake' is

  18. A.

     Na₂SO₄

    B.

     CaSO₄

    C.

     MgSO₄

    D.

     BaSO₄

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  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

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