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Chemical Engineering :: Chemical Process

  1. Plaster of Paris is

  2. A.

     CaSO₄.½H₂O

    B.

     Used for setting of broken bones

    C.

     Both A and B

    D.

     Same as gypsum

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  3. Cement setting under water employs a/an __________ process.

  4. A.

     Hydration

    B.

     Decomposition

    C.

     Oxidation

    D.

     Reduction

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  5. Extraction of __________ employs an electrolytic process.

  6. A.

     Aluminium

    B.

     Silver

    C.

     Copper

    D.

     All of the above

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  7. Polyvinyl chloride (PVC) is

  8. A.

     A thermosetting material

    B.

     A condensation polymerisation product

    C.

     Made by employing emulsion polymerisation

    D.

     None of these

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  9. 'Synthesis gas' meant for the synthesis of organic compound is a variable mixture of

  10. A.

     N₂ & H₂

    B.

     CO₂ & H₂

    C.

     CO & H₂

    D.

     C & H₂

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  11. Double Contact Double Absorption (DCDA) process is the most recent process for the manufacture of

  12. A.

     Nitric acid

    B.

     Sulphuric acid

    C.

     Ammonium sulphate

    D.

     Hydrochloric acid

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  13. Le-Blanc process is a primitive process for the manufacture of

  14. A.

     Caustic soda

    B.

     Soda ash

    C.

     Bromine from sea water

    D.

     Hydrochloric acid

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  15. A 'unit process' is exemplified by the

  16. A.

     Distillation

    B.

     Hydrogenation of oils

    C.

     Absorption

    D.

     Humidification

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  17. Oil produced by solvent extraction

  18. A.

     Has low free fatty acid content

    B.

     Is odourless

    C.

     Both A & B

    D.

     Neither A nor B

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  19. Conversion of SO₂ to SO₃ in Monsanto 4-pass converter is about __________ percent.

  20. A.

     80

    B.

     90

    C.

     98

    D.

     100

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