Pick out the false statement pertaining to water treatment.

A. Aeration of water is effective in CO2 removal

B. The zeolite water softening process reduces the hardness of water by not more than 50%

C. Sodium sulphate or sodium carbonate do not cause hardness in water

D. Water with pH value less than 7, is acidic

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

You can do it
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  2. __________ Nature of hypo (sodium thiosulphate) makes it useful in photography.
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  4. Reaction of an alcohol with organic acid is called the __________ reaction.
  5. Alcohol percentage in molasses may be around
  6. Lubricating greases are a mixture of
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  8. Yellow glycerine is made into white, using
  9. Sulphur addition in soap is done to
  10. Use of water having dissolved oxygen in boilers promotes
  11. Bordeaux mixture is a/an
  12. Neoprene is the trade name of
  13. Which of the following is not a product of coal tar distillation?
  14. Which of the following is the most adverse factor challenging the choice of mercury electrolytic cell…
  15. The manufacture of Kraft pulp is done by a/an __________ process.
  16. Styrene (a monomer for the production of polystyrene) is commercially produced by
  17. The difference between saponification value and acid value is
  18. Viscose rayon is chemically
  19. Baking soda is chemically represented by
  20. Which of the following, when pyrolysed, produces Perchloroethylene?
  21. Coloured glass is obtained by mixing of colored salts. Addition of __________ oxide is done to impart…
  22. __________ process is used for the manufacture of sodium carbonate by ammonia soda process.
  23. Which of the following is an additional step in the manufacture of paper from bagasse as compared to…
  24. Massecuite is a terminology used in the __________ industry.
  25. Carbon content of pitch (residue of coal tar distillation) is around __________ percent.
  26. Shrinkage volume in cement setting does not depend upon the
  27. High temperature carbonisation of coal produces
  28. In multistage equilibrium conversion of SO2 to SO3 (2SO2 + O2 2SO3), the reverse reaction becomes appreciable…
  29. __________ of rubber decreases after its vulcanisation.
  30. Pick out the wrong statement.