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Chemical Engineering :: Chemical Process

  1. Celluloid is chemically

  2. A.
    cellulose acetate
    B.
    regenerated cellulose
    C.
    cellulose nitrate
    D.
    cellulose acetate butyrate

  3. Double Contact Double Absorption (DCDA) process is the most recent process for the manufacture of

  4. A.
    nitric acid
    B.
    sulphuric acid
    C.
    ammonium sulphate
    D.
    hydrochloric acid

  5. Which of the following is an explosive ?

  6. A.
    Nitroglycerene
    B.
    Trintrotoluene (TNT)
    C.
    Cellulose nitrate
    D.
    All (a), (b), and (c)

  7. Zeolite is used in the

  8. A.
    water treatment.
    B.
    glass manufacture.
    C.
    hydrogenation of fatty oil as a catalyst.
    D.
    development of exposed photographic plate.

  9. Thermoplastic materials

  10. A.
    do not soften on application of heat.
    B.
    are heavily branched molecules.
    C.
    are solvent insoluble.
    D.
    none of these.

  11. Carbon tetrachloride (CCl4) is the starting raw material for the manufacture of

  12. A.
    trichloroethylene
    B.
    perchloroethylene
    C.
    parathion
    D.
    methanol

  13. Salt is added in the kettle during soap manufacture to separate

  14. A.
    soap from lye.
    B.
    glycerine from lye.
    C.
    the metallic soap.
    D.
    the unsaponified fat from soap.

  15. Manufacture of phthalic anhydride uses __________ as a catalyst.

  16. A.
    Ni
    B.
    Cr
    C.
    V2O5
    D.
    Al2O3

  17. Which of the following is not a product of coal tar distillation ?

  18. A.
    Anthracene
    B.
    Cresote oil
    C.
    Carbolic oil
    D.
    None of these

  19. Teflon is

  20. A.
    phenol formaldehyde.
    B.
    an inorganic polymer.
    C.
    poly tetrafluoroethylene (P.T.F.E.).
    D.
    a monomer.