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

Answer»

ong>Answer:

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.

{ \boxed{ \rm{2Cu + CO_2 + O_2 + H_2O \longrightarrow CuCO_3.Cu_(OH)_2}}}

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



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