Question

Q23. What happens when a copper vessel is exposed to moist for long time? Write word
equation of the reaction. ​

Answer 1

Explanation:

Copper is comparatively less reactive but reacts with reagents like oxygen and water in atmosphere in a slow time. Also carbon dioxide helps in the reaction. As it is a metal, it will start corroding..

After some days, we will observe greenish layer on the surface of copper vessel due to the formation of copper carbonate. The required reaction is:

Copper when reacts with carbon dioxide, water and oxygen forms basic copper carbonate.

The basic carbonate is a green coloured substance formed due time. Another example is the statue of liberty in New York, USA.