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प्रश्न
When copper is heated with conc. HNO3, it produces ______.
विकल्प
Cu(NO3)2 and NO2
Cu(NO3)2 and NO
Cu(NO3)2, NO and NO2
Cu(NO3)2 and N2O
MCQ
रिक्त स्थान भरें
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उत्तर
When copper is heated with conc. HNO3, it produces Cu(NO3)2 and NO2.
Explanation:
When copper is heated with hot and concentrated nitric acid, it forms copper nitrate Cu(NO3)2 along with the reddish-brown gas NO2 and water.
The balanced reaction is:
\[\ce{Cu + 4HNO3 -> Cu(NO3)2 + 2NO2 + 2H2O}\]
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