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Why is catalytic reduction preferred over the catalytic decomposition of nitric oxide?

Why is catalytic reduction preferred over the catalytic decomposition of nitric oxide? Correct Answer Decomposition is low

The decomposition of NO is very slow. Additionally, the flue gases contain reducing agents. These reasons make the catalytic reduction viable over the catalytic decomposition of nitric oxide. The catalysts used for this purpose are palladium and platinum.

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