Question

Why do copper vessels develop a greenish layer when exposed to moist air?​

Answer 1

Answer:

Upon exposure to air, the copper metal gains a green colour. The formation of green colour is due to corrosion. During monsoon, copper metal, upon exposure to the atmosphere forms a mixture of hydroxide and carbonate of copper.                                                                                                                                                

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Explanation:

Answer 2

Answer:

Due to corrosion

Explanation:

During monsoon, copper metal, upon exposure to the atmosphere forms a mixture of hydroxide and carbonate of copper.