Chemical formula of oleum is

A. H2SO3

B. H2SO4

C. H2S2O7

D. H2SO7

Please do not use chat terms. Example: avoid using "grt" instead of "great".

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  1. The major constituent of black liquor generated during paper manufacture is sodium
  2. __________ process is used for producing soda ash.
  3. The catalyst used in the production of elemental sulphur from H2S (by oxidation-reduction) is
  4. Pick out the correct statement.
  5. Adipic acid is an intermediate in the manufacture of
  6. Pick out the wrong statement.
  7. Which allotrope of sulphur is insoluble in carbon disulphide?
  8. Bitterns is a/an
  9. Hydrogenation of oil/fat does not
  10. Raw materials for 'Solvay Process' for manufacture of the soda ash are
  11. Glauber's salt is chemically
  12. Chemical formula of oleum is
  13. Permanent hardness of water can be removed by
  14. The drug used in contraceptives is
  15. Starting material for the commercial production of ethyl alcohol in India is
  16. The catalyst used in shift converter is
  17. Lubricating greases are a mixture of
  18. Function of sodium thiosulphate (hypo) in development of photographic film/plate is to
  19. Which of the following fuel gases contains maximum amount of carbon monoxide?
  20. In the Lurgi coal gasifier
  21. Bio-degradable detergents
  22. Dacron is a/an
  23. Esterification reaction produces
  24. __________ are used as corrosion inhibitor for iron & steel in aqueous solutions.
  25. Salt is added in the kettle during soap manufacture to separate
  26. The difference between saponification value and acid value is
  27. Parathion and Malathion are
  28. Out of the following processes of paper pulp manufacture, the maximum corrosion problem in digestion…
  29. Pick out the wrong statement pertaining to the properties of glasses. Glasses generally have
  30. Nitrile rubber is produced by the polymerisation of