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7.41 Illustrate how copper metal can give different products on reaction with HNO3.

0 2 Views | Posted 4 months ago
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    alok kumar singh | Contributor-Level 10

    4 months ago

    7.41

    Copper metal on reaction with HNO3 gets oxidized and give different by-products depending on the temperature, concentration of the acid and the copper metal undergoing oxidation.

    The reaction of copper with concentrated and dilute HNO3 is as shown below:

    3Cu + 8HNO3 (did.)  3Cu (NO3)2 + 2NO +4H2O

    Cu + 4HNO3 (conc.)  Cu (NO3)2 + 2NO2 +2H2O

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