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Transportation of 35% oleum during winter suffers from the problem of freezing, which can be overcome by the addition of small quantity of

A. Nitric acid

B. Hydrochloric acid

C. Methyl alcohol

D. Formic acid

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  1. Metallic soap is __________ salt of fatty acids.
  2. Very fine suspended and colloidal impurities are removed from water by a process called
  3. Reverse osmosis is normally used for the
  4. Fourdrinier machine is used in the manufacture of
  5. Graphite is a/an
  6. In the manufacture of viscose rayon, the raw material used industrially is
  7. __________ process is used for the manufacture of sodium carbonate by ammonia soda process.
  8. Neon gas is
  9. The gasification reaction represented by, C + H2O = CO + H2, is a/an __________ reaction.
  10. Extraction of __________ employs an electrolytic process.
  11. Coke used for the production of calcium carbide should have
  12. Paper grade bamboo contains about __________ percent cellulose.
  13. CaSO4 . ½H2O is known as
  14. Main constituents of Portland cement are calcium aluminate and
  15. Anion exchanger is regenerated usually with
  16. Blue colour is imparted to glass by the addition of
  17. Which of the following is not produced on commercial scale from sea water?
  18. Polymethyl methacrylate (PMMA) is known as
  19. Oxidation of ortho-xylene in presence of __________ catalyst is done to produce phthalic anhydride on…
  20. Rosin soap is added during paper manufacture to
  21. Neoprene is a
  22. Exothermic neutralisation reaction between caustic soda and dodecylbenzene sulfonic acid produces sodium…
  23. Double Contact Double Absorption (DCDA) process is the most recent process for the manufacture of
  24. Solvent used for extraction of oil is
  25. Main product in calcium carbide-water reaction is
  26. Poly Vinyl Chloride (P.V.C.) is a __________ material.
  27. Which catalyst is used in the manufacture of ethylene oxide by oxidation of ethylene?
  28. Co-efficient of thermal expansion of glass is decreased by the addition of __________ during its manufacture.
  29. Esterification reaction produces
  30. Phthalic anhydride is used