Chemical name of 'alum' is

A. Barium sulphate

B. Aluminium sulphate

C. Aluminium chloride

D. Calcium sulphate

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  2. Very fine suspended and colloidal impurities are removed from water by a process called
  3. Acrylonitrile is mainly used in the __________ industry.
  4. __________ glass is used for the manufacture of optical glass.
  5. Fish contains about __________ percent oil.
  6. The type of high refractive index glass used in optical instruments is __________ glass.
  7. In the Lurgi coal gasifier
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  11. Fumigant insecticides
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  14. Pick out the wrong statement.
  15. Sodium bisulphite is used for __________ water.
  16. P.T.F.E. (Poly tetra fluoro ethylene) is commercially known as
  17. __________ is used as a catalyst in fat splitting.
  18. Synthetic glycerine is produced from
  19. Massecuite is
  20. Metallic soap (e.g. aluminium or calcium salts of fatty acids) can be used
  21. Caprolactam (a raw material for nylon-6 manufacture) is produced from
  22. Which form of sulphur is the most stable at room temperature?
  23. Viscose rayon is chemically
  24. Cement mainly contains
  25. Salt cake is chemically represented by
  26. Zeolite is used in the
  27. Isopropyl benzene produced by alkylation of benzene with propylene is known as
  28. Catalytic oxidation of naphthalene produces
  29. Manufacture of phthalic anhydride uses __________ as a catalyst.
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