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Chemical Engineering :: Chemical Process

  1. Which of the following contains least amount of N2 ?

  2. A.
    Coke oven gas
    B.
    Blast furnace gas
    C.
    Producer gas
    D.
    Water gas (blue gas).

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  3. Calcination of limestone is not done in a __________ kiln for producing lime.

  4. A.
    vertical shaft
    B.
    rotary
    C.
    fluidised bed
    D.
    fixed bed

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  5. Neoprene is a

  6. A.
    monomer
    B.
    synthetic rubber
    C.
    polyester
    D.
    none of these

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  7. Saponification value/number of an oil or fat is a measure of its

  8. A.
    fatty acid content.
    B.
    degree of unsaturation of the fatty acids present in it.
    C.
    average molecular weight.
    D.
    insoluble fatty acid content.

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  9. Ethyl alcohol cannot be produced

  10. A.
    from waste sulphite substrate of paper mills.
    B.
    by esterification and hydroloysis of ethylene.
    C.
    from molasses.
    D.
    none of these.

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  11. Exothermic condensation reaction of monochlorobenzene with chloral in presence of 20% oleum as catalyst produces DDT. The reaction temperature is maintained at __________ °C.

  12. A.
    15-30
    B.
    90-100
    C.
    250-300
    D.
    <0

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  13. Cement mainly contains

  14. A.
    CaO, SiO2, Al2O3
    B.
    MgO, SiO2, K2O
    C.
    Al2O3, MgO, Fe2O3
    D.
    CaO, MgO, K2O

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  15. Sand and __________ is fused at 1300°C, to produce sodium silicate.

  16. A.
    limestone
    B.
    soda ash
    C.
    coke
    D.
    sodium sulphate

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  17. Coke used for the production of calcium carbide should have

  18. A.
    low ash content.
    B.
    low ignition temperature.
    C.
    high electrical resistivity.
    D.
    all (a), (b) and (c).

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  19. Sucrose is a disaccharide consisting of

  20. A.
    glucose and glucose
    B.
    glucose and fructose
    C.
    glucose and galactose
    D.
    fructose and galactose

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