__________ process is used for the commercial production of nitric acid by the catalytic oxidation of ammonia.

A. Solvay

B. Ostwald's

C. Haber's

D. None of these

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  20. How much temperature is maintained during quicklime manufacture in the calcination zone of the vertical…
  21. __________ is a polysaccharide.
  22. Oils and fats are converted to soap in a process called
  23. The product obtained on mixing calcium oxide with water is called
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  25. Salt is the basic raw material for the manufacture of
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