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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

  3. __________ of quicklime produces slaked lime.

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

  5. Main product in calcium carbide-water reaction is

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

  7. Glauber's salt is chemically

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

  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

  11. Baking soda is chemically represented by

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

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

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

  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

  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

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

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