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Chemical Engineering :: Chemical Process

  1. Fusion of bauxite and __________ produces high alumina cement.

  2. A.

     Alum

    B.

     Limestone

    C.

     Coke

    D.

     Quartz

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  3. Fusion of limestone and __________ produces high alumina cement.

  4. A.

     Sand

    B.

     Bauxite

    C.

     Quicklime

    D.

     Calcite

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  5. Which of the following, when pyrolysed, produces perchloro-ethylene?

  6. A.

     Ethylene dichloride

    B.

     Chlorobenzene

    C.

     Carbon tetrachloride

    D.

     Chlorinated paraffin

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  7. Naphthalene is removed from coke oven gas by

  8. A.

     Adsorbing on palladium

    B.

     Absorbing in ethanolamine

    C.

     Scrubbing with wash oil

    D.

     Passing it through electrostatic precipitator

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  9. Hydrophilic group of a soap or detergent solution is

  10. A.

     Water hating

    B.

     Soil loving

    C.

     Water loving

    D.

     None of these

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  11. __________ is obtained as a by-product in the manufacture of sodium hydroxide using brine.

  12. A.

     Chlorine

    B.

     Ammonium chloride

    C.

     Sodium carbonate

    D.

     Sodium bi-carbonate

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  13. High temperature carbonisation of coal takes place at __________ °C.

  14. A.

     2000

    B.

     700

    C.

     1100

    D.

     < 500

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  15. Low temperature carbonisation of coal takes place at __________ °C.

  16. A.

     300

    B.

     1100

    C.

     700

    D.

     900

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  17. Mercury electrolytic cell produces 50-70% NaOH solution. Its operating temperature is __________ °C.

  18. A.

     25

    B.

     60-70

    C.

     150-200

    D.

     250-300

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  19. Comparing sulphate process with sulphite process, we find that __________ in the later.

  20. A.

     Both temperature & pressure in the former is less than that

    B.

     Both temperature & pressure in the former is more than that

    C.

     Temperature is more in the former whereas pressure is more

    D.

     Pressure is more in the former whereas temperature is less

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