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Effect of Catalyst

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Question

In the manufacture of nitric acid by Ostwald's process, write the catalyst for the oxidation of ammonia by atmospheric oxygen.

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Solution

Catalyst for oxidation of $N H_{3}$ to $N O$ is Platinum $(P t)$
$4 N H_{3} + 5 O_{2} P t - \to 4 N O + 6 H_{2} O$

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