Question

gurkirt saw vessel is expond to moist air in her house for long time . due to moisture it acquires a green coating​

Answer 1

Answer:

2. copper carbonate

hope i helped u

Answer 2

Answer:

both a and b

Explanation:

When copper vessel is exposed to air turns green in colour due to corrosion. It is so because the metal reacts with moisture and atmospheric gases to form a mixture of copper carbonate and copper hydroxide, which gives a green colour to the surface of copper vessel.