Zeolite used in water softening process (cation exchange) is regenerated by washing with

A. Brine

B. Chloramines

C. Sodium bisulphite

D. Liquid chlorines

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

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  1. The function of gypsum addition during cement making is to
  2. Epoxy resin
  3. The drug used in contraceptives is
  4. Catalytic oxidation of naphthalene produces
  5. Bordeaux mixture is a/an
  6. Neon gas is
  7. __________ is obtained as a by-product in the manufacture of sodium hydroxide using brine.
  8. Kaolin is a/an
  9. Trinitro-toluene (TNT) is
  10. Mercury electrolytic cell produces 50-70% NaOH solution. Its operating temperature is __________ °C.
  11. Massecuite is
  12. Hydrazine is largely used
  13. __________ acid is the main constituent of cotton seed oil.
  14. Oxygen is separated by distillation from air after its liquefaction. The boiling point of oxygen is…
  15. Deaeration of water in its treatment is necessary, as it
  16. Type of glass used in optical work is the __________ glass.
  17. __________ are added in lacquers to remove film brittleness and to improve adhereness.
  18. __________ is used as a flux in the extraction of iron from iron ore (haematite) in blast furnace.
  19. Naphthols are derivates of
  20. Detergent is produced by the sulphonation of dodecyl benzene, which is an __________ reaction.
  21. 'Synthesis gas' meant for the synthesis of organic compound is a variable mixture of
  22. Bakelite is chemically known as
  23. Esterification reaction produces
  24. Calcination of limestone is not done in a __________ kiln for producing lime.
  25. Chemical formula of 'salt cake' is
  26. Argon is the third largest constituent of air (followed by N2 & O2). Its percentage by volume in air…
  27. Average sulphur content in Indian pyrites is about __________ percent.
  28. Thermoplastic materials
  29. The noble gas which occurs most abundantly in the atmosphere is
  30. __________ is produced by the dehydrogenation of ethyl benzene.