Multiple choice

In Ostwald's process element used to oxide NH3 is

  1. Fe

  2. V2O5

  3. Pt

  4. Mo
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In Ostwald's  process, Ammonia is converted to nitric acid in two stages. It is oxidized by heating with oxygen in the presence of a catalyst of platinum with 10% rhodium, to form nitric oxide and water. This step is stongly exothermic, making it a useful heat source once initiated (delta H = -950 kJ).

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