1.

Give an example to show the effect of concentration of nitric acid on the formation of oxidation product ?

Answer»

Solution :Depending upon the concentration, `HNO_(3)` REACTS with METALS to give DIFFERENT oxidation products. With dil. `HNO_(3)`, NO is formed while with conc. `HNO_(3), NO_(2)` is formed. For example,
`{:(3Cu + 8 HNO_(3)(dil.)RARR 3 Cu (NO_(3))_(2) + 2NO + 4 H_(2)O),(Cu + 4 HNO_(3)(conc.)rarr Cu (NO_(3))_(2) + 2 NO_(2) + 2 H_(2)O):}`


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