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Chemical Engineering :: Chemical Process

  1. All enzymes are made of

  2. A.
    fats
    B.
    carbohydrates
    C.
    proteins
    D.
    amino acids

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  3. The combustion reaction, C + O2 = CO2, is

  4. A.
    exothermic
    B.
    endothermic
    C.
    autocatalytic
    D.
    none of these

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  5. Styrene is produced from ethyl benzene by the process of

  6. A.
    dehydrogenation
    B.
    oxidation
    C.
    alkylation
    D.
    dehydration

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  7. Gelatine which is a nitrogenous organic protein is obtained by the hydrolysis of

  8. A.
    callagen
    B.
    tannin
    C.
    molasses
    D.
    carbohydrate

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  9. The chamber process is

  10. A.
    preferred over contact process for producing 98 to 100% H2SO4 and various oleums.
    B.
    non-catalytic and operates only on pyrites.
    C.
    a batch process for directly producing high strength (98 to 100%) H2SO4.
    D.
    none of these.

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  11. Sucrose content in the raw juice extracted from sugar cane is about __________ percent.

  12. A.
    1 - 2
    B.
    15 - 20
    C.
    50 - 60
    D.
    80 - 85

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  13. Fusel oil is a/an

  14. A.
    essential oil.
    B.
    extract from medicinal herbs.
    C.
    mixture of higher molecular weight alcohols (a by-product obtained during production of alcohol from molasses).
    D.
    none of these.

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  15. Styrene-butadiene-rubber (SBR) as compared to natural rubber has

  16. A.
    Poorer tensile strength.
    B.
    poorer resistance to oxidation.
    C.
    greater amount of heat build-up under heavy loading.
    D.
    all (a), (b) and (c).

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  17. Co-efficient of thermal expansion of glass is decreased by the addition of __________ during its manufacture.

  18. A.
    CaO
    B.
    MnO2
    C.
    ZnO
    D.
    FeS

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  19. The catalyst used in the manufacture of DDT (from chloral and chlorobenzene) is

  20. A.
    dilute H2SO4
    B.
    oleum
    C.
    ultraviolet light
    D.
    none of these

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