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Chemical Engineering :: Chemical Process

  1. CaSO4 .H2O is known as

  2. A.
    blue vitriol
    B.
    plaster of Paris
    C.
    gypsum
    D.
    zeolite

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  3. __________ of quicklime produces slaked lime.

  4. A.
    Hydration
    B.
    Dehydration
    C.
    Hydrogenation
    D.
    none of these

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  5. Main product in calcium carbide-water reaction is

  6. A.
    Ca(OH)2
    B.
    C2H2
    C.
    CO2
    D.
    CaCO3

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  7. Glauber's salt is chemically

  8. A.
    calcium sulphate
    B.
    potassium sulphate
    C.
    potassium chlorate
    D.
    none of these

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  9. Which of the following fuel gases contains maximum amount of carbon monoxide ?

  10. A.
    Coke oven gas
    B.
    Water gas
    C.
    Blast furnace gas
    D.
    L.D. converter gas

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  11. Baking soda is chemically represented by

  12. A.
    Na2CO3
    B.
    NaHCO3
    C.
    Na2CO3.H2O
    D.
    Na2CO3.10H2O

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  13. P.T.F.E. (Poly tetra fluoro ethylene) is commercially known as

  14. A.
    bakelite
    B.
    neoprene
    C.
    teflon
    D.
    nylon-66

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  15. Which of the following is an additional step in the manufacture of paper from bagasse as compared to that from bamboo ?

  16. A.
    Depithing
    B.
    Digestion
    C.
    Bleaching
    D.
    None of these

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  17. Percentage of glycerene present in the spent lye obtained during soap manufacture is about

  18. A.
    0.5
    B.
    5
    C.
    20
    D.
    35

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  19. Concentration of NaOH solution produced by diaphragm electrolytic cell is about __________ percent.

  20. A.
    10
    B.
    25
    C.
    50
    D.
    98

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