Chemistry · Industrial Chemistry
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Platinum or polonium are used as catalysts in:-
- A
Haber process
- B
Contact process
- C
Oxidation of NH3
The correct answer is the oxidation of NH3. In the Ostwald process, platinum serves as a catalyst for the oxidation of ammonia to produce nitric acid. This process is critical in the industrial synthesis of fertilizers and explosives. The Haber process uses iron as a catalyst for ammonia synthesis, and the Contact process uses vanadium(V) oxide for sulfuric acid production, making them incorrect options for this specific catalyst usage.
Option A is incorrect. The Haber process involves the synthesis of ammonia and typically uses iron (Fe) as a catalyst, often promoted with Al2O3 and K2O.
Option B is incorrect. The Contact process, used for producing sulfuric acid, employs vanadium(V) oxide (V2O5) as a catalyst.
Option C is correct. In the Ostwald process for producing nitric acid, platinum is used as a catalyst in the oxidation of ammonia (NH3).
Tagged under Chemistry · Industrial Chemistry · 2003