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Chemical Engineering :: Chemical Process

  1. __________ process is used for the manufacture of sodium carbonate by ammonia soda process.

  2. A.
    Ostwald's
    B.
    Bosch
    C.
    Solvay
    D.
    Haber's

  3. Polycaprolactum is commercially known as

  4. A.
    nylon-6
    B.
    nylon-66
    C.
    dacron
    D.
    rayon

  5. Frasch process is for

  6. A.
    making oxygen
    B.
    producing helium
    C.
    mining sulphur
    D.
    making nitrogen

  7. Very fine suspended and colloidal impurities are removed from water by a process called

  8. A.
    sedimentation
    B.
    coagulation
    C.
    disinfection
    D.
    softening

  9. Pitch (a product of coal tar distillation) is always mixed with creosote oil, when it is to be burnt in a burner, because

  10. A.
    its calorific value is very less.
    B.
    tar neutralises the residual acids present in pitch.
    C.
    it reduces viscosity and imparts fluidity for its transportation through pipelines at economic pressure drop.
    D.
    all (a), (b) and (c).

  11. Which is the main reducing agent during production of iron from iron ore in a blast furnace ?

  12. A.
    C
    B.
    CO
    C.
    CO2
    D.
    H2

  13. The drug used in contraceptives is

  14. A.
    sulphadizene
    B.
    mestranol
    C.
    methyl salicylate
    D.
    pencillin

  15. Raw materials used for producing __________ cement does not contain iron oxide.

  16. A.
    waterproof
    B.
    slag
    C.
    white
    D.
    pozzolan

  17. In the Lurgi coal gasifier

  18. A.
    coking coals cannot be used.
    B.
    low carbon conversion efficiency is achieved.
    C.
    entrainment of solids is higher.
    D.
    large quantity of coal can be processed.

  19. Neon gas is

  20. A.
    flammable in nature.
    B.
    used in color discharge tube.
    C.
    filled in lamps having tungsten filament.
    D.
    all (a), (b) and (c).