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Widely used method for the conditioning of boiler feed water is the

A. Cold lime process

B. Coagulation

C. Hot-lime soda process

D. Sequestration

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  1. Starting material for the commercial production of ethyl alcohol in India is
  2. Reaction of an alcohol with organic acid is called the __________ reaction.
  3. Esterification reaction
  4. In Kraft process of paper manufacture, white cooking liquor consists of caustic soda
  5. Presence of sodium tripolyphosphate (an additive) in synthetic detergent
  6. Sudden temperature fluctuation does not affect pyrex glass, because of its
  7. Sulphuric acid solution having a specific gravity of 1.20 at room temperature is used mainly for the
  8. Catalytic oxidation-dehydrogenation of methyl alcohol produces
  9. Pick out the wrong statement.
  10. Air used in aerobic fermentation must be sterilized, otherwise the
  11. Penicillin is made employing __________ fermentation process.
  12. Production of alcohol by fermentation of molasses is a/an __________ process.
  13. The major constituent of black liquor generated during paper manufacture is sodium
  14. Titanium dioxide is a/an __________ colour pigment.
  15. Bromides contained in hot mother liquor is treated with __________ during manufacture of bromine from…
  16. In the manufacture of H2SO4, vanadium catalyst as compared to platinum catalyst
  17. Mercury electrolytic cell produces 50-70% NaOH solution. Its operating temperature is __________ °C.
  18. Pick out the wrong statement pertaining to solvent extraction of oil. Rate of extraction
  19. Gelatine which is a nitrogenous organic protein is obtained by the hydrolysis of
  20. Rancidity of the fatty oil can be reduced by its
  21. Sand and __________ is fused at 1300°C, to produce sodium silicate.
  22. Phenol is mainly used
  23. Soaps remove dirt by
  24. Sulphuric acid is mainly used in the __________ industry.
  25. Pick out the wrong statement pertaining to the soap manufacture.
  26. Raw materials required for the manufacture of __________ is acetylene and hydrochloric acid.
  27. Pick out the false statement pertaining to water treatment.
  28. At very high concentration of enzymes, the rate of fermentation chemical reaction is __________ the…
  29. __________ is the major constituent of the Portland cement.
  30. Bleaching powder (chemically known as calcium chloro hypochlorite) is commercially produced by the action…