Sodium bisulphite is used for __________ water.

A. Deaeration

B. Dechlorination

C. Both (A) & (B)

D. Neither (A) nor (B)

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  1. Fish contains about __________ percent oil.
  2. Which of the following is not responsible for causing permanent hardness of water?
  3. Which of the following fuel gases contains maximum amount of carbon monoxide?
  4. P.T.F.E. (Poly tetra fluoro ethylene) is commercially known as
  5. Which of the following processes is absent in glass manufacturing process?
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  7. Pick out the false statement pertaining to water treatment.
  8. Chlorine gas is produced by the electrolysis of brine (NaCl solution with solid NaCl make up) in mercury…
  9. An alkali metal salt of Palmitic acid is known as
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  12. Cumene is the starting material for the production of
  13. The catalyst used in the production of elemental sulphur from H2S (by oxidation-reduction) is
  14. Very fine suspended and colloidal impurities are removed from water by a process called
  15. Mercury electrolytic cells are preferred over diaphragm electrolytic cell (for production of caustic…
  16. Catalyst used in the oxidation of benzene to produce Maleic anhydride is
  17. Fourdrinier machine is used in the manufacture of
  18. Comparing sulphate process with sulphite process, we find that __________ in the later.
  19. Catalytic oxidation of naphthalene produces
  20. Impurities present in brine is normally removed by treatment with
  21. Use of hydrated lime in water treatment
  22. Which of the following is not a food additive?
  23. In the manufacture of H2SO4, vanadium catalyst as compared to platinum catalyst
  24. Zeolite removes both temporary as well as permanent hardness of water by precipitating calcium and magnesium…
  25. High temperature carbonisation of coal takes place at __________ °C.
  26. Epoxy resin
  27. Fermentation is adversely affected by the
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