Catalyst used in the manufacture of NH3 by Haber's process is finely divided________________?
Correct answer: B. Iron
- A. Nickel
- B. Iron
- C. Vanadium pentoxide
- D. Alumina
Explanation
The Haber process uses finely divided iron as the main catalyst, usually promoted by oxides such as K2O, Al2O3 and CaO. Nickel is typical of hydrogenation catalysts, while vanadium pentoxide is used mainly in sulphuric acid manufacture.
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