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ICSE Class 10 Chemistry Question 2 of 63

Study of Compounds — Nitric Acid — Question 6

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Question 6

State which reaction of ammonia forms the first step of Ostwald's process.

Answer

Catalytic oxidation of ammonia to nitric oxide and water is the first step of Ostwald's process.

4NH3+5O2→700−800°CPt4NO+6H2O+21.5K cals4\text{NH}_3 + 5\text{O}_2 \xrightarrow[700-800 \degree\text{C}]{\text{Pt}} \text{4NO} + \text{6H}_\text{2}\text{O} + 21.5 \text{K cals}