Catalyst used in the oxidation of ammonia is ________________?
Correct answer: C. Platinum-rhodium
- A. Platinum-beryllium
- B. Cobalt-molybdenum
- C. Platinum-rhodium
- D. Platinum-molybdenum
Explanation
Ammonia is oxidised to nitric oxide in the Ostwald process over a platinum-rhodium gauze catalyst. The precious-metal gauze provides high activity and withstands the hot oxidising conditions.
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