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Chemical Engineering :: Chemical Process

  1. All enzymes are made of

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

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

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

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

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

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

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

  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.

  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

  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.

  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).

  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

  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