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Illustrate how copper metal can give different product on reaction with `HNO_3`. |
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Answer» Reactions of Cu metal with `HNO_3`: (i). `Cu+dil.HNO_3overset(Delta)toNO` is evolved (colourless gas) `3Cu+8HNO_3overset(Delta)to3Cu(NO_3)_2+4H_2O+2NO` (ii). `Cu+conc.HNO_3overset(Delta)toNO_2` is evolved `Cu+4HNO_3overset(Delta)Cu(NO_3)_2+2H_2O+2NO_2` |
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