Which of the following is not produced commercially from sea water?

A. Magnesium & potassium compounds

B. Common salt

C. Bromine

D. Iodine

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  4. __________ is used as a flux in the smelting of copper ore like chalcopyrite.
  5. Temporary hardness of water can be removed by
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  7. Alcohol is produced by the
  8. Which allotrope of sulphur is insoluble in carbon disulphide?
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  13. Silicon carbide is a/an
  14. Penicillin, an antibiotic drug was discovered by
  15. Which of the following is used as a binding material in soap to improve soap texture?
  16. Which of the following coals has the highest calorific value?
  17. Starting material for the production of styrene butadiene rubber (SBR) is
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  21. __________ process is used for the manufacture of sodium carbonate by ammonia soda process.
  22. Sucrose is a disaccharide consisting of
  23. Which of the following is an ore of iron?
  24. Caprolactam (a raw material for nylon-6 manufacture) is produced from
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  27. Polymerisation product of C2F4 (carbon tetrafluoride) is called P.T.F.E (poly chloro tetra fluoro ethylene).…
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