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ICSE Class 10 Chemistry 2023 Paper

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Complete and balance the following equations:
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Question : 42 of 88
Marks: +1, -0
  Cu+  Conc.  HNO3→\;\mathrm{Cu}+\;\text{Conc.}\;\mathrm{HNO}_3\rightarrow
Solution:  
Cu+4 HNO3Conc.→Cu(NO3)2+2 NO2\mathrm{Cu}+{4\,\mathrm{HNO}_3}_{\text{Conc.}}\rightarrow\mathrm{Cu}(\mathrm{NO}_3)_2+2\,\mathrm{NO}_2 +2 H2O+2\,\mathrm{H}_2\mathrm{O}
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