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Question
On passing ammonia over heated copper oxide, the gas evolved is ______.
Options
oxygen
ammonia
nitrogen
nitric oxide
MCQ
Fill in the Blanks
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Solution
On passing ammonia over heated copper oxide, the gas evolved is nitrogen.
Explanation:
Heated copper oxide (CuO) acts as an oxidizing agent and oxidizes ammonia gas to release nitrogen gas (N2), reducing itself to metallic copper.
\[\ce{3CuO + 2NH3 -> 3Cu + 3H2O + N2 ^}\]
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