Question

Name the gas evolved in each case (the formula is not acceptable).

The gas is produced by the action of dilute nitric acid on copper.

Answer 1

1. Copper reacts with dilute Nitric acid to obtain Copper nitrate and Nitrogen oxide as the gas.
2. Water is also obtained as a byproduct of this reaction.
3. The chemical equation for this reaction is,
4. $\underset{Nitricacid}{8HN{O}_3\left(l\right)}+\underset{Copper}{3Cu\left(s\right)}\to \underset{Nitrogenoxide}{2NO\left(g\right)}+\underset{Coppernitrate}{3Cu{\left(N{O}_3\right)}_2}\left(s\right)+4H_{2}O\left(l\right)$
5. So, the gas obtained is Nitrogen oxide.