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Chemical Engineering :: Chemical Process

  1. Enzymes are

  2. A.

     Proteins with high molecular weight (around 10, 000)

    B.

     Derived from living organisms

    C.

     Catalyst for temperature sensitive reactions

    D.

     All of the above

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  3. Neoprene is chemically known as

  4. A.

     Polybutadiene

    B.

     Styrene butadiene rubber (SBR)

    C.

     Polyurathane

    D.

     Polychloroprene

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  5. Epoxy resin

  6. A.

     Is a good adhesive

    B.

     Is an elastomer

    C.

     Cannot be used for surface coatings

    D.

     Is a polyester

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  7. Anion exchanger is regenerated usually with

  8. A.

     NaOH

    B.

     H₂SO₄

    C.

     Hydrazine

    D.

     Alum solution

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  9. Cation exchanger is regenerated usually with

  10. A.

     NaOH

    B.

     H₂SO₄

    C.

     Hydrazine

    D.

     Alum solution

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  11. Sulphuric acid solution having a specific gravity of 1.20 at room temperature is used mainly for the

  12. A.

     Fertiliser manufacture

    B.

     Car battery solution

    C.

     Synthesis of oleum

    D.

     Water treatment

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  13. Glycerine is recovered from lye by

  14. A.

     Evaporation followed by vacuum distillation

    B.

     Liquid extraction technique

    C.

     Extractive distillation technique

    D.

     None of these

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  15. Phenol formaldehyde is produced by condensation polymerisation. It is also known as

  16. A.

     Teflon

    B.

     Bakelite

    C.

     Polyester

    D.

     Nylon-66

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  17. Conversion of CO to CO₂ by steam in presence of a catalyst is called

  18. A.

     Steam reforming

    B.

     Shift conversion

    C.

     Steam gasification

    D.

     None of these

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  19. __________ are added in lacquers to remove film brittleness and to improve adhereness.

  20. A.

     Film forming materials

    B.

     Plasticisers

    C.

     Diluents

    D.

     Solvents

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