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Chemical Engineering :: Chemical Process

  1. L.D. converter is used in the production of

  2. A.

     Pig iron

    B.

     Steel

    C.

     Copper

    D.

     Zinc


  3. 90% of the caprolactum is converted to nylon-6 on its condensation polymerisation in the reactor maintained at __________ °C.

  4. A.

     <0

    B.

     10-30

    C.

     250-280

    D.

     500-600


  5. Setting of plaster of paris is accompanied with

  6. A.

     Hydration

    B.

     Dehydration

    C.

     Hydrolysis

    D.

     Loss of CO₂


  7. With increase in temperature, the equilibrium constant at constant pressure (Kp) for oxidation of sulphur dioxide

  8. A.

     Increases

    B.

     Increases linearly

    C.

     Decreases

    D.

     Decreases linearly


  9. Hydrazine is used in water treatment for the removal of

  10. A.

     Colloidal impurities

    B.

     Dissolved oxygen

    C.

     Turbidity

    D.

     Chlorinous taste


  11. Very dilute solutions are generally used in fermentation reactions for which the optimum temperature range is __________ °C.

  12. A.

     -5 to 0

    B.

     5 to 10

    C.

     30 to 50

    D.

     75 to 80


  13. Chloramines are used in water treatment for

  14. A.

     Disinfection and control of taste & odour

    B.

     Corrosion control

    C.

     Removing turbidity

    D.

     Control of bacteria


  15. Pick out the endothermic reaction out of the following.

  16. A.

     C+1/2O₂ = CO

    B.

     CO + 3H₂ = CH₄ + H₂O

    C.

     CaCO₃ = CaO + CO₂

    D.

     CO +1/2O₂ = CO₂


  17. Pick out the exothermic reaction out of the following:

  18. A.

     C + H₂O = CO + H₂

    B.

     CaC₂ + H₂O = Ca(OH)₂ + C₂H₂

    C.

     MgCO₃ = MgO + CO₂

    D.

     All of the above


  19. Grignard reagent is chemically known as

  20. A.

     Ethyl magnesium chloride

    B.

     Methyl magnesium chloride

    C.

     Dichlorophenol

    D.

     Monochloro acetic acid