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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


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

  4. A.

     Hydration

    B.

     Decomposition

    C.

     Oxidation

    D.

     Reduction


  5. Extraction of __________ employs an electrolytic process.

  6. A.

     Aluminium

    B.

     Silver

    C.

     Copper

    D.

     All of the above


  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


  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


  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


  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


  15. A 'unit process' is exemplified by the

  16. A.

     Distillation

    B.

     Hydrogenation of oils

    C.

     Absorption

    D.

     Humidification


  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


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

  20. A.

     80

    B.

     90

    C.

     98

    D.

     100