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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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  1. Paper pulp produced by Kraft/sulphate process is
  2. Styrene butadiene rubber (SBR) is
  3. Main constituents of Portland cement are calcium aluminate and
  4. __________ is used as a flux in the smelting of copper ore like chalcopyrite.
  5. Temporary hardness of water can be removed by
  6. Nickel is not used as a catalyst in the __________ reaction.
  7. Alcohol is produced by the
  8. Which allotrope of sulphur is insoluble in carbon disulphide?
  9. Which of the following is a bleaching agent added in the detergents to facilitate removal of stains…
  10. Thorium is mainly used
  11. Nylon-6 is a
  12. Isopropyl benzene produced by alkylation of benzene with propylene is known as
  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
  18. Dacron is a
  19. Zeolite used in water softening process (cation exchange) is regenerated by washing with
  20. Which of the following may be viewed as a catalyst in the manufacture of soda ash by Solvay process?
  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
  25. 90% of the caprolactam is converted to nylon-6 on its condensation polymerisation in the reactor maintained…
  26. The most economical pulp for the production of newsprint would be the __________ pulp.
  27. Polymerisation product of C2F4 (carbon tetrafluoride) is called P.T.F.E (poly chloro tetra fluoro ethylene).…
  28. Highly porous refractory bricks are
  29. Reverse osmosis is normally used for the
  30. Blue vitriol is chemically