Question

Write balanced chemical equation for which of the following-

Action of cold and dilute nitric acid on copper

Answer 1

1. When copper reacts with cold dilute nitric acid nitrogen dioxide is formed.
2. $$\begin{gathered} 3\mathrm{Cu}+\underset{\mathrm{Nitric}\mathrm{Acid}}{8{\mathrm{HNO}}_3}\to \underset{\mathrm{Copper} \\ \mathrm{nitrate}}{3\mathrm{Cu}{\left({\mathrm{NO}}_3\right)}_2}+4{\mathrm{H}}_2\mathrm{O}+\underset{\mathrm{Nitric} \\ \mathrm{oxide}}{2\mathrm{NO}} \end{gathered}$$