ICSE Class 10 Chemistry 2022 Solved Paper
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State the observation for the following :
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Question : 25
Total: 55
Dry ammonia gas reacts with oxygen in the presence of a catalyst.
Solution:
Reddish brown vapours of nitrogen dioxide ( NO 2 ) are seen in the flask due to the oxidation of nitric oxide (NO).
4 NH 3 + 5 O 2
6 H 2 O + 4 NO ↑ + ∆
2 NO + O 2 → 2 NO 2 (brown gas)
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