A metal X acquires a green colour coating on its surface on expose to ...
1) The metal X is copper and when it keep in the open area copper acquire green coating because
Metals + Oxygen ---> Metal oxide
2) Cu(Brown in colour) + O2 ---> CuO(Black in colour)
Copper oxygen Copper oxide
Copper reacts with oxygen to form copper oxide which is very slow process.
A metal X acquires a green colour coating on its surface on expose to ...
Some other metals that also acquire a green coating on their surface on exposure to air.
1. The metal X is copper, and the process responsible for this change is called oxidation. When copper reacts with oxygen in the air, it forms copper oxide, which has a green color.
2. Other metals that also acquire a green coating on their surface on exposure to air include bronze (which contains copper), brass (which contains copper and zinc), and aluminum. The green coating on these metals is also a result of oxidation.