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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

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  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

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  5. Setting of plaster of paris is accompanied with

  6. A.

     Hydration

    B.

     Dehydration

    C.

     Hydrolysis

    D.

     Loss of CO₂

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  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

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

  10. A.

     Colloidal impurities

    B.

     Dissolved oxygen

    C.

     Turbidity

    D.

     Chlorinous taste

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  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

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  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

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  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

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  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

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  19. Grignard reagent is chemically known as

  20. A.

     Ethyl magnesium chloride

    B.

     Methyl magnesium chloride

    C.

     Dichlorophenol

    D.

     Monochloro acetic acid

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