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Le-Blanc process is a primitive process for the manufacture of

A. Caustic soda

B. Soda ash

C. Bromine from sea water

D. Hydrochloric acid

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  1. Esterification reaction produces
  2. Concentration of NaOH solution produced by mercury electrolytic cell is about __________ percent.
  3. Hydrazine is largely used
  4. Commercial production of calcium carbide requires limestone and __________ as raw materials.
  5. Concentration of hydrogen peroxide is done by
  6. Lurgi coal gasifier is a pressurised __________ bed reactor.
  7. Very dilute solutions are generally used in fermentation reactions for which the optimum temperature…
  8. Refractory bricks burnt at very high temperature have got
  9. Which of the following is not an insecticide?
  10. Multistage catalytic converter is not used in the
  11. A mineral is termed as 'ore', if
  12. __________ of quicklime produces slaked lime.
  13. Catalytic oxidation-dehydrogenation of methyl alcohol produces
  14. Sulphuric acid solution having a specific gravity of 1.20 at room temperature is used mainly for the
  15. Hydrogenation of oil does not
  16. Sulphuric acid saturated with SO3 is called
  17. Widely used method for the conditioning of boiler feed water is the
  18. Fumigant insecticides
  19. For the hydrogenation of oils, __________ (i) __________ is commonly used as catalyst and __________…
  20. A 'unit process' is exemplified by the
  21. At very high concentration of enzymes, the rate of fermentation chemical reaction is __________ the…
  22. Starting material for the commercial production of ethyl alcohol in India is
  23. The amount of benzene present in pure Benzol is about __________ percent.
  24. Poly Tetrafluoroethylene (P.T.F.E.) is known as
  25. Nitro-glycerine absorbed in wood flour, sodium nitrate or ammonium nitrate is commercially used as controlled…
  26. The chamber process is
  27. In nylon-66, the first and second numbers (i.e., 6) respectively designate the number of carbon atoms…
  28. Which of the following is a detergent?
  29. Which of the following is used as a coagulant in treating turbid water?
  30. Yellow glycerine is made into white, using