Question

Paheli bought a statue made of copper.To her surprise it acquired a dull green coating after a couple of months.Explain the reason.

Answer 1

Answer:

it is because of the reaction of elements with copper.

the pale green layer is called patina

Answer 2

Answer:

pls mark as brainlist answer

Explanation:

The statue made of copper will get a dull green coating after a couple of months due to the oxidation of copper and other chemical reactions.

When exposed to air and under moisture, copper reacts with water and oxygen.

The copper first oxidizes to copper oxide and then undergoes further changes to finally form hydrated copper carbonate which is in green colour. This green colour layer is called as the patina